{"id":1383,"date":"2026-06-26T06:29:17","date_gmt":"2026-06-26T06:29:17","guid":{"rendered":"https:\/\/worm-and-worm-wheel.com\/?p=1383"},"modified":"2026-06-26T06:29:17","modified_gmt":"2026-06-26T06:29:17","slug":"worm-and-worm-wheel-for-bottling-and-filling-line-drives","status":"publish","type":"post","link":"https:\/\/worm-and-worm-wheel.com\/zh\/worm-and-worm-wheel-for-bottling-and-filling-line-drives\/","title":{"rendered":"\u7528\u4e8e\u74f6\u88c5\u704c\u88c5\u751f\u4ea7\u7ebf\u7684\u8717\u8f6e\u8717\u6746\u4f20\u52a8\u88c5\u7f6e"},"content":{"rendered":"<div style=\"max-width: 900px; margin: 0 auto; padding: 0 4% 2rem; font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif; color: #1e293b; line-height: 1.75;\">\n<p><!-- \u2550\u2550\u2550 HERO \u2550\u2550\u2550 --><\/p>\n<div style=\"background: linear-gradient(125deg,rgba(10,37,64,.88) 0%,rgba(10,37,64,.55) 100%), url('https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/ever-power-workshop-2.webp') center\/cover no-repeat #0A2540; padding: clamp(36px,6vw,72px) clamp(20px,4vw,44px); border-radius: 12px; margin-bottom: 32px;\">\n<p style=\"font-family: 'JetBrains Mono',monospace; font-size: 11px; letter-spacing: 2.5px; color: #06b6d4; text-transform: uppercase; margin: 0 0 10px;\">Korea Ever-Power \u00b7 Application Engineering Guide<\/p>\n<h1 style=\"color: #fff; font-size: clamp(24px,4vw+8px,40px); font-weight: 800; line-height: 1.22; margin: 0 0 14px; max-width: 720px;\">\u7528\u4e8e\u74f6\u88c5\u704c\u88c5\u751f\u4ea7\u7ebf\u7684\u8717\u8f6e\u8717\u6746\u4f20\u52a8\u88c5\u7f6e<\/h1>\n<p style=\"color: #cbd5e1; font-size: clamp(14px,1.8vw+4px,17px); max-width: 660px; margin: 0 0 22px; line-height: 1.7;\">A 400-bottle-per-minute soju line has five stations running simultaneously \u2014 rinser, filler, capper, labeller, and case packer. Each station has its own worm gear pair drive. If any single pair runs 2 percent faster or slower than its neighbours, bottles jam, caps misalign, labels skew, and the line stops. Synchronisation between stations is not a convenience \u2014 it is the operating principle of every bottling line on earth.<\/p>\n<p><a style=\"display: inline-block; background: #F59E0B; color: #0a2540; padding: 12px 26px; border-radius: 5px; font-weight: bold; text-decoration: none; font-size: 14px;\" href=\"#contact\">Talk to a filling line drive engineer \u2192<\/a><\/p>\n<\/div>\n<p><!-- \u2550\u2550\u2550 QUICK ANSWER \u2550\u2550\u2550 --><\/p>\n<div style=\"background: #F8FAFC; border-left: 4px solid #F59E0B; padding: 18px 22px; margin: 0 0 32px; border-radius: 0 8px 8px 0;\">\n<div style=\"font-family: 'JetBrains Mono',monospace; font-size: 11px; color: #f59e0b; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 6px;\">\u5feb\u901f\u89e3\u7b54<\/div>\n<p style=\"margin: 0; color: #1e293b; font-size: clamp(13.5px,1.5vw+6px,15.5px); line-height: 1.7;\">Bottling and filling lines use multiple worm gear pair drives \u2014 one per station \u2014 synchronised to run at matched speeds so that bottles flow from rinser through filler, capper, labeller, and packer without jamming, misalignment, or breakage. The multi-station synchronisation architecture is the core design challenge: each worm gear pair must deliver repeatable speed accuracy within plus or minus 0.5 percent of the target to maintain station-to-station timing. Modern lines use VFD-driven motors with individual worm gear pairs at each station, synchronised by a central PLC. The wet bottling environment (liquid splashes, foam, cleaning chemicals) requires IP65 minimum on all worm gear housings, with IP69K for dairy and juice lines subject to daily high-pressure hot washdown. Changeover between bottle sizes (200 ml, 360 ml, 500 ml, 1 litre) requires speed ratio adjustment at each station \u2014 achieved by VFD frequency change with the worm gear pair providing the fixed mechanical ratio. Beverage-grade NSF H1 lubricant is standard for all worm gear pairs in the filling zone.<\/p>\n<\/div>\n<p><!-- \u2550\u2550\u2550 H2: WHY BOTTLING LINES USE WORM GEARS \u2550\u2550\u2550 --><\/p>\n<h2 id=\"why-bottling-lines-use-worm-gear-drives\" style=\"color: #0a2540; font-size: clamp(22px,3vw+6px,30px); font-weight: 800; border-bottom: 3px solid #F59E0B; padding-bottom: 10px; margin: 48px 0 18px; scroll-margin-top: 80px; line-height: 1.3;\">Why bottling lines use worm gear drives at every station<\/h2>\n<p style=\"font-size: clamp(14px,1.6vw+6px,16px); margin: 0 0 14px;\">A bottling line is not one machine \u2014 it is a chain of 4 to 8 individual machines (stations), each performing a single operation on the bottle as it passes through. The stations must run at precisely matched speeds because the bottles travel on a continuous conveyor or transfer starwheel system that connects them all. A speed mismatch between any two adjacent stations causes bottle accumulation (pile-up) at the slower station or starvation (gaps) at the faster station \u2014 both of which stop the line.<\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 14px; margin: 20px 0 24px;\">\n<div style=\"flex: 1 1 220px; background: #F8FAFC; border-top: 3px solid #0A2540; border-radius: 0 0 8px 8px; padding: 16px 18px;\">\n<div style=\"font-size: 14px; font-weight: bold; color: #0a2540; margin-bottom: 6px;\">Per-station speed control<\/div>\n<p style=\"font-size: 13px; color: #475569; margin: 0; line-height: 1.65;\">Each station needs its own independently controllable drive. A VFD adjusts the motor speed; the worm gear pair provides the fixed ratio between the motor and the station mechanism. This combination gives the PLC fine-grained speed control at each station.<\/p>\n<\/div>\n<div style=\"flex: 1 1 220px; background: #F8FAFC; border-top: 3px solid #F59E0B; border-radius: 0 0 8px 8px; padding: 16px 18px;\">\n<div style=\"font-size: 14px; font-weight: bold; color: #0a2540; margin-bottom: 6px;\">Compact station footprint<\/div>\n<p style=\"font-size: 13px; color: #475569; margin: 0; line-height: 1.65;\">Bottling stations are packed closely \u2014 typically 800 to 1,500 mm pitch between stations. The 90-degree worm gear layout places the motor below or behind the station mechanism, fitting within the tight station envelope without interfering with bottle flow paths or operator access.<\/p>\n<\/div>\n<div style=\"flex: 1 1 220px; background: #F8FAFC; border-top: 3px solid #06B6D4; border-radius: 0 0 8px 8px; padding: 16px 18px;\">\n<div style=\"font-size: 14px; font-weight: bold; color: #0a2540; margin-bottom: 6px;\">Position hold at line stop<\/div>\n<p style=\"font-size: 13px; color: #475569; margin: 0; line-height: 1.65;\">When the line stops (for bottle jam clearance, changeover, or emergency), each station must hold its mechanical position \u2014 the filler nozzles must stay above the bottle mouths, the capper heads must stay at the retracted position. Self-locking worm gear pairs hold position without separate brakes.<\/p>\n<\/div>\n<\/div>\n<p><!-- \u2550\u2550\u2550 H2: SYNCHRONISATION DIAGRAM (CORE UNIQUE ELEMENT) \u2550\u2550\u2550 --><\/p>\n<h2 id=\"multi-station-synchronisation-architecture\" style=\"color: #0a2540; font-size: clamp(22px,3vw+6px,30px); font-weight: 800; border-bottom: 3px solid #F59E0B; padding-bottom: 10px; margin: 48px 0 18px; scroll-margin-top: 80px; line-height: 1.3;\">Multi-station synchronisation \u2014 how worm gear pairs keep a bottling line in time<\/h2>\n<div style=\"display: flex; flex-wrap: wrap; gap: 24px; align-items: center; margin: 20px 0 24px;\">\n<div style=\"flex: 1; min-width: 260px;\">\n<p style=\"font-size: clamp(14px,1.6vw+6px,16px); margin: 0 0 12px;\">The diagram below shows a typical 5-station bottling line architecture. Each station has an independent motor and worm gear pair. The PLC reads bottle position sensors and adjusts each VFD to maintain station-to-station timing within plus or minus 0.5 percent of the master speed reference.<\/p>\n<p style=\"font-size: clamp(14px,1.6vw+6px,16px); margin: 0;\">The worm gear pair at each station provides the fixed mechanical ratio \u2014 the VFD handles the fine speed trim. This separation of functions (mechanical ratio via worm pair, speed trim via VFD) is the standard architecture for all modern bottling lines from 100 to 1,200 bottles per minute.<\/p>\n<\/div>\n<div style=\"flex: 1; min-width: 260px;\"><img decoding=\"async\" style=\"width: 100%; height: auto; border-radius: 8px; display: block;\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/worm-gear-working-principle-1.webp\" alt=\"worm gear drive synchronisation principle for bottling line station timing\" \/><\/div>\n<\/div>\n<p><!-- Synchronisation architecture diagram --><\/p>\n<div style=\"background: #0A2540; border-radius: 10px; padding: 20px 24px; margin: 24px 0; overflow-x: auto;\">\n<div style=\"color: #06b6d4; font-family: -apple-system,sans-serif; font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 12px; font-weight: bold;\">5-Station Bottling Line Synchronisation Architecture<\/div>\n<pre style=\"font-family: 'JetBrains Mono','Courier New',monospace; font-size: clamp(10px,1.2vw+4px,12px); line-height: 1.8; color: #cbd5e1; margin: 0; white-space: pre; overflow-x: auto;\">  \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 <span style=\"color: #f59e0b;\">PLC MASTER CONTROLLER<\/span> \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\r\n  \u2502   Speed ref    Speed ref    Speed ref    Speed ref    Speed ref           \u2502\r\n  \u2502      \u2193            \u2193            \u2193            \u2193            \u2193               \u2502\r\n  \u2502   [<span style=\"color: #06b6d4;\">VFD-1<\/span>]      [<span style=\"color: #06b6d4;\">VFD-2<\/span>]      [<span style=\"color: #06b6d4;\">VFD-3<\/span>]      [<span style=\"color: #06b6d4;\">VFD-4<\/span>]      [<span style=\"color: #06b6d4;\">VFD-5<\/span>]           \u2502\r\n  \u2502      \u2193            \u2193            \u2193            \u2193            \u2193               \u2502\r\n  \u2502   [Motor]      [Motor]      [Motor]      [Motor]      [Motor]           \u2502\r\n  \u2502      \u2193            \u2193            \u2193            \u2193            \u2193               \u2502\r\n  \u2502   [<span style=\"color: #f59e0b;\">WORM<\/span>]       [<span style=\"color: #f59e0b;\">WORM<\/span>]       [<span style=\"color: #f59e0b;\">WORM<\/span>]       [<span style=\"color: #f59e0b;\">WORM<\/span>]       [<span style=\"color: #f59e0b;\">WORM<\/span>]            \u2502\r\n  \u2502   [<span style=\"color: #f59e0b;\">PAIR<\/span>]       [<span style=\"color: #f59e0b;\">PAIR<\/span>]       [<span style=\"color: #f59e0b;\">PAIR<\/span>]       [<span style=\"color: #f59e0b;\">PAIR<\/span>]       [<span style=\"color: #f59e0b;\">PAIR<\/span>]            \u2502\r\n  \u2502      \u2193            \u2193            \u2193            \u2193            \u2193               \u2502\r\n  \u2502  RINSER  \u2500\u2500\u2192  FILLER  \u2500\u2500\u2192  CAPPER  \u2500\u2500\u2192  LABELLER \u2500\u2500\u2192  PACKER           \u2502\r\n  \u2502                                                                          \u2502\r\n  \u2502  \u2190\u2500\u2500\u2500\u2500\u2500 Bottles flow left to right on transfer conveyor \/ starwheels \u2500\u2500\u2192 \u2502\r\n  \u2502                                                                          \u2502\r\n  \u2502  [Sensor]    [Sensor]    [Sensor]    [Sensor]    [Sensor]                \u2502\r\n  \u2502      \u2191            \u2191            \u2191            \u2191            \u2191               \u2502\r\n  \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 Position feedback to PLC for speed trim \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518\r\n<\/pre>\n<\/div>\n<p style=\"font-size: clamp(14px,1.6vw+6px,16px); margin: 16px 0 14px;\"><strong style=\"color: #0a2540;\">Speed accuracy requirement.<\/strong> If the filler station runs at 400 bottles per minute and the capper runs at 398 bottles per minute (a 0.5 percent mismatch), the filler outputs 2 more bottles per minute than the capper can process. Over 60 minutes, that is 120 accumulated bottles \u2014 causing a pile-up that jams the transfer section in approximately 8 to 12 minutes. This is why each worm gear pair must deliver repeatable speed accuracy: the ratio must be consistent from pair to pair (manufacturing tolerance within plus or minus 0.3 percent on the gear ratio), and the pair must not exhibit speed variation due to load changes (the worm pair&#8217;s inherent speed reduction characteristic is stable under varying torque, unlike belt drives which slip under load).<\/p>\n<p style=\"font-size: clamp(14px,1.6vw+6px,16px); margin: 0 0 14px;\"><strong style=\"color: #0a2540;\">Changeover flexibility.<\/strong> When the bottling line switches from 360 ml bottles to 500 ml bottles, every station must change speed to match the new bottle pitch and fill time. The worm gear pair ratio stays fixed \u2014 the VFD adjusts the motor speed to achieve the new station speed. A line running 400 bottles per minute with 360 ml bottles at VFD frequency 45 Hz changes to 300 bottles per minute with 500 ml bottles at VFD frequency 34 Hz \u2014 the worm gear pair sees a different input speed but the same ratio. This is why VFD plus worm gear pair is the preferred architecture over mechanical gearbox with multiple fixed ratios: changeover requires a PLC recipe change, not a physical gear swap.<\/p>\n<p><!-- \u2550\u2550\u2550 H2: WET ENVIRONMENT \u2550\u2550\u2550 --><\/p>\n<h2 id=\"wet-environment-and-splash-zone-classification\" style=\"color: #0a2540; font-size: clamp(22px,3vw+6px,30px); font-weight: 800; border-bottom: 3px solid #F59E0B; padding-bottom: 10px; margin: 48px 0 18px; scroll-margin-top: 80px; line-height: 1.3;\">Wet environment \u2014 splash zone classification for bottling line worm gear pairs<\/h2>\n<p><img decoding=\"async\" style=\"width: 100%; max-width: 480px; height: auto; border-radius: 8px; display: block; margin: 18px auto;\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/Worms-and-worm-wheels-made-of-different-materials-1.webp\" alt=\"worm gear pair stainless steel and bronze materials for wet bottling line splash zones\" \/><\/p>\n<p style=\"font-size: clamp(14px,1.6vw+6px,16px); margin: 0 0 14px;\">Bottling lines are inherently wet. The filler station spills liquid during every fill cycle (overfill splash, drip, foam). The rinser station sprays water or sanitiser. The capper station may generate cap-seal condensation. Cleaning-in-place (CIP) cycles flood the entire line with hot caustic and acid solutions. The worm gear pair housings sit in this wet zone continuously \u2014 and the IP and material specification must match the exposure level.<\/p>\n<div style=\"overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 20px 0 24px; border-radius: 8px;\">\n<table style=\"width: 100%; min-width: 680px; border-collapse: separate; border-spacing: 0; font-size: clamp(12px,1.5vw+4px,14px); background: #fff; border: 1px solid #E2E8F0; border-radius: 8px; overflow: hidden;\">\n<thead>\n<tr>\n<th style=\"background: #0A2540; color: #fff; padding: 13px 12px; text-align: left; font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: .05em;\">Splash zone<\/th>\n<th style=\"background: #0A2540; color: #fff; padding: 13px 12px; text-align: left; font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: .05em;\">Stations<\/th>\n<th style=\"background: #0A2540; color: #fff; padding: 13px 12px; text-align: center; font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: .05em;\">IP rating<\/th>\n<th style=\"background: #0A2540; color: #fff; padding: 13px 12px; text-align: left; font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: .05em;\">\u6750\u6599<\/th>\n<th style=\"background: #0A2540; color: #fff; padding: 13px 12px; text-align: left; font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: .05em;\">Typical beverages<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 11px 12px; border-top: 1px solid #E2E8F0; color: #0a2540; font-weight: bold;\">Z1 \u2014 Dry zone<\/td>\n<td style=\"padding: 11px 12px; border-top: 1px solid #E2E8F0; color: #475569;\">Case packer, palletiser<\/td>\n<td style=\"padding: 11px 12px; border-top: 1px solid #E2E8F0; color: #059669; text-align: center; font-weight: 600;\">IP44<\/td>\n<td style=\"padding: 11px 12px; border-top: 1px solid #E2E8F0; color: #475569;\">Zinc-plated steel worm, PB wheel<\/td>\n<td style=\"padding: 11px 12px; border-top: 1px solid #E2E8F0; color: #475569;\">All (post-capping area)<\/td>\n<\/tr>\n<tr style=\"background: #F8FAFC;\">\n<td style=\"padding: 11px 12px; border-top: 1px solid #E2E8F0; color: #0a2540; font-weight: bold;\">Z2 \u2014 Splash zone<\/td>\n<td style=\"padding: 11px 12px; border-top: 1px solid #E2E8F0; color: #475569;\">Filler, capper, labeller<\/td>\n<td style=\"padding: 11px 12px; border-top: 1px solid #E2E8F0; color: #d97706; text-align: center; font-weight: 600;\">IP65<\/td>\n<td style=\"padding: 11px 12px; border-top: 1px solid #E2E8F0; color: #475569;\">304 SS worm, PB wheel, NSF H1<\/td>\n<td style=\"padding: 11px 12px; border-top: 1px solid #E2E8F0; color: #475569;\">Water, soju, beer, soft drinks<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 11px 12px; border-top: 1px solid #E2E8F0; color: #0a2540; font-weight: bold;\">Z3 \u2014 Wet \/ acidic<\/td>\n<td style=\"padding: 11px 12px; border-top: 1px solid #E2E8F0; color: #475569;\">Filler, rinser (acidic products)<\/td>\n<td style=\"padding: 11px 12px; border-top: 1px solid #E2E8F0; color: #dc2626; text-align: center; font-weight: 600;\">IP65<\/td>\n<td style=\"padding: 11px 12px; border-top: 1px solid #E2E8F0; color: #475569;\">316L SS worm, AlBr wheel, PTFE seal<\/td>\n<td style=\"padding: 11px 12px; border-top: 1px solid #E2E8F0; color: #475569;\">Juice, vinegar, wine, fermented<\/td>\n<\/tr>\n<tr style=\"background: #F8FAFC;\">\n<td style=\"padding: 11px 12px; border-top: 1px solid #E2E8F0; color: #0a2540; font-weight: bold;\">Z4 \u2014 CIP washdown<\/td>\n<td style=\"padding: 11px 12px; border-top: 1px solid #E2E8F0; color: #475569;\">All stations (dairy, juice CIP)<\/td>\n<td style=\"padding: 11px 12px; border-top: 1px solid #E2E8F0; color: #dc2626; text-align: center; font-weight: 600;\">IP69K<\/td>\n<td style=\"padding: 11px 12px; border-top: 1px solid #E2E8F0; color: #475569;\">316L SS, AlBr, FKM seal, pharma grease<\/td>\n<td style=\"padding: 11px 12px; border-top: 1px solid #E2E8F0; color: #475569;\">Milk, yoghurt, fresh juice<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"font-size: clamp(14px,1.6vw+6px,16px); margin: 0 0 14px;\">A single bottling line may contain worm gear pairs from different splash zones: the filler and capper in Z2 or Z3, and the case packer in Z1. Specifying all pairs at the highest zone (Z4) wastes money; specifying all at the lowest zone (Z1) risks corrosion and contamination at the wet stations. The correct approach is zone-by-zone specification \u2014 matching the IP, material, and seal to the actual exposure at each station position.<\/p>\n<p><!-- \u2550\u2550\u2550 ENGINEERING DESK NOTE \u2550\u2550\u2550 --><\/p>\n<div style=\"background: #0A2540; color: #fff; padding: 24px 26px; border-radius: 10px; margin: 28px 0;\">\n<div style=\"font-family: 'JetBrains Mono',monospace; font-size: 11px; color: #06b6d4; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 8px;\">\u5de5\u7a0b\u53f0\u7b14\u8bb0<\/div>\n<p style=\"margin: 0; font-size: clamp(13px,1.5vw+5px,15px); line-height: 1.7; color: #cbd5e1;\">A Korean soju bottling company installed a new 400-bottle-per-minute line with 5 stations. All 5 worm gear pairs were ordered from the same supplier, same specification: single-start, module 3, centre distance 80 mm, ratio 20:1. After commissioning, the labeller station consistently ran 0.8 percent slower than the filler station \u2014 producing label skew on approximately 1 in 50 bottles. The PLC was trimming VFD frequency to compensate, but the trim range was exhausted at maximum label speed. Investigation revealed that the 5 worm gear pairs had actual ratios ranging from 19.92:1 to 20.08:1 \u2014 a manufacturing tolerance spread of 0.8 percent total. The filler pair was at 19.92:1 (slightly fast) and the labeller pair was at 20.08:1 (slightly slow). The 0.8 percent mismatch exceeded the VFD trim range at maximum line speed. Resolution: the supplier measured and graded all pairs by actual ratio. The 5 closest-matched pairs (within plus or minus 0.1 percent of nominal) were installed together. Label skew reduced to zero. Lesson for bottling line procurement: worm gear pairs for multi-station synchronised lines should be ratio-matched as a set, not picked randomly from stock. The cost of ratio measurement and grading is approximately 5 USD per pair \u2014 negligible against the production loss from label skew or bottle jams caused by ratio mismatch.<\/p>\n<\/div>\n<p><!-- \u2550\u2550\u2550 H2: THREE CASES \u2550\u2550\u2550 --><\/p>\n<h2 id=\"three-bottling-line-oem-cases\" style=\"color: #0a2540; font-size: clamp(22px,3vw+6px,30px); font-weight: 800; border-bottom: 3px solid #F59E0B; padding-bottom: 10px; margin: 48px 0 18px; scroll-margin-top: 80px; line-height: 1.3;\">Three bottling line worm gear pair specification cases<\/h2>\n<p><img decoding=\"async\" style=\"width: 100%; max-width: 480px; height: auto; border-radius: 8px; display: block; margin: 18px auto;\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/worm-gear-set-detail-1.webp\" alt=\"precision worm gear set for bottling filling line synchronised drive\" \/><\/p>\n<p><img decoding=\"async\" style=\"width: 100%; max-width: 480px; height: auto; border-radius: 8px; display: block; margin: 18px auto;\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/worm-gear-detal-2.webp\" alt=\"worm gear pair precision detail for bottling line synchronisation drive\" \/><\/p>\n<h3 id=\"case-1-korean-soju-bottling\" style=\"color: #0a2540; font-size: clamp(17px,2vw+5px,21px); font-weight: bold; border-left: 3px solid #06B6D4; padding-left: 12px; margin: 30px 0 12px; scroll-margin-top: 80px; line-height: 1.35;\">Case 1 \u2014 Korean soju bottling: 400 bpm, 5-station synchronised, Z2 splash zone<\/h3>\n<p style=\"font-size: clamp(14px,1.6vw+6px,16px); margin: 0 0 14px;\">A Korean soju manufacturer specified ratio-matched worm gear pairs for a 400-bottle-per-minute green glass line with rinser, gravity filler, ROPP capper, wraparound labeller, and shrink-wrap packer. Bottle: 360 ml green glass, 200 g empty weight. Stations 1-4 (wet zone Z2): AISI 304 worm, phosphor bronze wheel, EPDM seal IP65, NSF H1 lithium complex grease. Station 5 (dry zone Z1): zinc-plated worm, phosphor bronze wheel, IP44, standard grease. All pairs: single-start, module 3, centre distance 80 mm, ratio 20:1 (ratio-matched within plus or minus 0.1 percent as a 5-pair set). Motor per station: 1.1 to 2.2 kW depending on station torque. Output torque range: 45 to 120 N\u00b7m across the 5 stations (filler highest, labeller lowest). Speed accuracy between stations after ratio matching: plus or minus 0.15 percent \u2014 well within the 0.5 percent threshold. Cost per pair Z2: 135 USD. Per pair Z1: 82 USD. 5-pair matched set total: 622 USD. Line production: 192,000 bottles per 8-hour shift. The 622 USD worm gear set drives approximately 430,000 USD of soju per shift at retail value.<\/p>\n<h3 id=\"case-2-japanese-sake-filling\" style=\"color: #0a2540; font-size: clamp(17px,2vw+5px,21px); font-weight: bold; border-left: 3px solid #06B6D4; padding-left: 12px; margin: 30px 0 12px; scroll-margin-top: 80px; line-height: 1.35;\">Case 2 \u2014 Japanese sake brewery: 200 bpm, premium glass, vibration-sensitive filler<\/h3>\n<p style=\"font-size: clamp(14px,1.6vw+6px,16px); margin: 0 0 14px;\">A Japanese premium sake brewery specified worm gear pairs for a 200-bottle-per-minute line filling 720 ml premium glass bottles (thin-walled, high-value). The fill specification demanded zero splash and zero foam \u2014 any agitation of the sake during filling would cause oxidation and quality degradation. The worm gear pair at the filler station required ultra-smooth rotation to avoid vibration transmission through the filler frame to the fill nozzles. Filler worm gear pair: single-start, module 2.5, centre distance 63 mm, ratio 25:1, worm ground Ra 0.3 \u00b5m (premium finish for vibration reduction), centrifugal-cast phosphor bronze wheel. Z3 specification (sake is mildly acidic, pH 4.2 to 4.5): 316L stainless worm. Output torque at filler: 65 N\u00b7m. Vibration at filler nozzle: measured 0.02 mm\/s RMS \u2014 within the 0.05 mm\/s specification that the brewery&#8217;s quality team had verified would not disturb the sake surface during fill. Other stations (capper, labeller, packer): standard Z2 specification at Ra 0.6 \u00b5m \u2014 vibration not critical. Cost premium for Ra 0.3 \u00b5m filler pair: 45 USD above standard (185 USD versus 140 USD). The premium protected a sake batch worth 28,000 USD per shift from oxidation-induced quality loss. Browse <a style=\"color: #f59e0b; font-weight: 600;\" href=\"https:\/\/wormreducers.xyz\/\" target=\"_blank\" rel=\"noopener\">worm gear reducer for filling line<\/a> options that include precision-ground pairs for vibration-sensitive filling applications.<\/p>\n<h3 id=\"case-3-vietnamese-water-bottling\" style=\"color: #0a2540; font-size: clamp(17px,2vw+5px,21px); font-weight: bold; border-left: 3px solid #06B6D4; padding-left: 12px; margin: 30px 0 12px; scroll-margin-top: 80px; line-height: 1.35;\">Case 3 \u2014 Vietnamese water bottling: 600 bpm, high-speed PET, cost-competitive<\/h3>\n<p style=\"font-size: clamp(14px,1.6vw+6px,16px); margin: 0 0 14px;\">A Vietnamese bottled water company specified worm gear pairs for a high-speed 600-bottle-per-minute PET line with blow-moulder, rinser-filler-capper monoblock, sleeve labeller, and tray packer. At 600 bpm, the station speeds are high \u2014 the filler starwheel rotates at approximately 120 RPM. Motor speed: 1,450 RPM. Required ratio: 12:1 \u2014 lower than typical because of the high output speed. Worm gear pair for monoblock (rinser-filler-capper integrated): 2-start, module 3, centre distance 80 mm, ratio 12:1. The 2-start specification was chosen because: (1) the monoblock is horizontal (no self-locking needed for position hold \u2014 electronic motor hold at stop), (2) the higher efficiency (72 percent versus 48 percent for single-start) reduces motor size by 30 percent, and (3) the lower heat generation allows sealed grease rather than oil bath. Splash zone: Z2 (water, no acids). Material: AISI 304 worm, phosphor bronze wheel, EPDM seal IP65. Cost per pair: 95 USD. At 600 bpm and 16 hours per day, the line produces 576,000 bottles per day \u2014 the 95 USD worm gear pair drives approximately 46,000 USD of bottled water per day at wholesale. Annual production value per dollar of gear pair cost: roughly 175,000 to 1.<\/p>\n<p><!-- \u2550\u2550\u2550 H2: FAQ \u2550\u2550\u2550 --><\/p>\n<h2 id=\"frequently-asked-questions\" style=\"color: #0a2540; font-size: clamp(22px,3vw+6px,30px); font-weight: 800; border-bottom: 3px solid #F59E0B; padding-bottom: 10px; margin: 48px 0 18px; scroll-margin-top: 80px; line-height: 1.3;\">\u5e38\u89c1\u95ee\u9898\u89e3\u7b54<\/h2>\n<div style=\"background: #F8FAFC; padding: 24px 20px; border-radius: 12px; margin: 20px 0;\">\n<details style=\"background: #fff; border: 1px solid #E2E8F0; border-radius: 8px; padding: 14px 18px; margin-bottom: 8px;\">\n<summary style=\"cursor: pointer; font-weight: 600; color: #0a2540; font-size: 15px;\">Q: How tight does the ratio matching need to be for synchronised bottling stations?<\/summary>\n<p style=\"margin: 10px 0 0; color: #475569; font-size: 14px; line-height: 1.7;\">For lines up to 300 bpm, plus or minus 0.3 percent ratio matching is adequate \u2014 the PLC VFD trim range can compensate the remaining mismatch. For lines above 300 bpm, plus or minus 0.1 percent matching is recommended because the higher speed amplifies the cumulative effect of mismatch (more bottles per minute means the pile-up or gap develops faster). At 600 bpm, even 0.2 percent mismatch accumulates 1.2 bottles per minute \u2014 producing a jam-inducing pile-up in under 5 minutes at the slower station. Ratio matching is achieved by measuring the actual ratio of each pair on a gear testing machine and grouping pairs within the required tolerance band. This adds 3 to 8 USD per pair to the cost \u2014 a trivial investment against the production loss from an unmatched set.<\/p>\n<\/details>\n<details style=\"background: #fff; border: 1px solid #E2E8F0; border-radius: 8px; padding: 14px 18px; margin-bottom: 8px;\">\n<summary style=\"cursor: pointer; font-weight: 600; color: #0a2540; font-size: 15px;\">Q: Can I use a single worm gear pair to drive multiple stations through a line shaft?<\/summary>\n<p style=\"margin: 10px 0 0; color: #475569; font-size: 14px; line-height: 1.7;\">This was the traditional approach (one motor, one worm gear pair, one line shaft driving all stations through timing gears). It guaranteed perfect synchronisation because all stations were mechanically coupled. However, line shaft systems cannot adjust individual station speeds for changeover \u2014 a bottle size change requires changing physical gears at each station takeoff point. Modern bottling lines above 200 bpm universally use individual drives (one VFD, one motor, one worm gear pair per station) because the changeover flexibility and the diagnostic capability (per-station current monitoring detects problems before they cause jams) outweigh the synchronisation complexity. Line shaft systems are still used on small-volume manual or semi-automatic lines below 100 bpm where changeover is infrequent and the cost of multiple VFDs is not justified.<\/p>\n<\/details>\n<details style=\"background: #fff; border: 1px solid #E2E8F0; border-radius: 8px; padding: 14px 18px; margin-bottom: 8px;\">\n<summary style=\"cursor: pointer; font-weight: 600; color: #0a2540; font-size: 15px;\">Q: Should bottling line worm gear pairs use single-start or multi-start?<\/summary>\n<p style=\"margin: 10px 0 0; color: #475569; font-size: 14px; line-height: 1.7;\">Single-start is the default for stations that need position hold at line stop (filler nozzles must stay aligned with bottle mouths). Multi-start (2 or 3 start) is preferred for high-speed stations where position hold is not critical (such as case packers and palletisers) or where the higher efficiency reduces motor size and energy cost. At 600 bpm, a 2-start pair at 72 percent efficiency versus a single-start at 48 percent saves roughly 1 kW of continuous power per station \u2014 meaningful across multiple stations running 16 hours per day. The decision is per-station: the filler may use single-start for position hold while the packer uses 2-start for efficiency.<\/p>\n<\/details>\n<details style=\"background: #fff; border: 1px solid #E2E8F0; border-radius: 8px; padding: 14px 18px; margin-bottom: 8px;\">\n<summary style=\"cursor: pointer; font-weight: 600; color: #0a2540; font-size: 15px;\">Q: How does CIP (cleaning-in-place) affect the worm gear pair?<\/summary>\n<p style=\"margin: 10px 0 0; color: #475569; font-size: 14px; line-height: 1.7;\">CIP cycles flood the bottling line with hot (75 to 85 degrees Celsius) caustic soda (2 to 3 percent NaOH) followed by hot acid (1 to 2 percent nitric or phosphoric acid), then hot water rinse. The worm gear pair housing is externally exposed to these chemicals during every CIP cycle (typically daily for dairy and juice, weekly for water and soft drinks). The impact on the worm gear pair is entirely through seal degradation and housing corrosion \u2014 the internal gear teeth are protected by the sealed housing. EPDM seals resist caustic solutions but degrade in nitric acid; FKM (Viton) seals resist both. For dairy lines with daily CIP including acid rinse, FKM seals are mandatory \u2014 EPDM will crack within 3 to 6 months. Housing material should be 304 or 316L stainless for any station within the CIP flood zone.<\/p>\n<\/details>\n<details style=\"background: #fff; border: 1px solid #E2E8F0; border-radius: 8px; padding: 14px 18px; margin-bottom: 8px;\">\n<summary style=\"cursor: pointer; font-weight: 600; color: #0a2540; font-size: 15px;\">Q: What is the typical service life of a bottling line worm gear pair?<\/summary>\n<p style=\"margin: 10px 0 0; color: #475569; font-size: 14px; line-height: 1.7;\">Bottling lines typically run 2 shifts (3,500 to 5,000 hours per year). At this duty, a properly specified worm gear pair bronze wheel lasts 3 to 6 years before backlash growth affects station timing. The steel worm (stainless or plated) lasts 8 to 12 years. Seal replacement is needed every 1.5 to 3 years depending on CIP chemical exposure. Plan worm gear pair replacement as a set \u2014 replacing one pair at a time introduces a new pair with different (tighter) backlash into a set of worn pairs, potentially creating a synchronisation discontinuity. Budget full-set replacement every 4 to 5 years at scheduled line overhaul, with individual seal replacements at annual maintenance windows.<\/p>\n<\/details>\n<\/div>\n<p><!-- \u2550\u2550\u2550 CLOSING \u2550\u2550\u2550 --><\/p>\n<p style=\"font-size: clamp(14px,1.6vw+6px,16px); margin: 28px 0 14px;\">Bottling and filling lines use worm gear pairs as the distributed drive element in a multi-station synchronised architecture \u2014 one pair per station, each providing the fixed mechanical ratio while the VFD handles speed trim for station-to-station timing. The synchronisation architecture diagram illustrates how PLC-controlled VFDs coordinate 4 to 8 independent worm gear drives to maintain plus or minus 0.5 percent speed matching across the line. Ratio matching between pairs (plus or minus 0.1 to 0.3 percent) is essential for high-speed lines above 300 bpm. Splash zone classification (Z1 dry through Z4 CIP washdown) maps each station position to the correct IP, material, and seal specification. The wet, acidic, chemically aggressive bottling environment makes the seal and material specification as important as the torque and ratio \u2014 and the cost of getting the material wrong is measured in contamination recalls, not just pair replacement.<\/p>\n<p style=\"font-size: clamp(14px,1.6vw+6px,16px); margin: 0 0 14px;\">For bottling line manufacturers and beverage plant engineers, our engineering desk provides ratio-matched worm gear pair sets with per-station splash zone specification. Standard catalogue <a style=\"color: #f59e0b; font-weight: 600;\" href=\"https:\/\/worm-and-worm-wheel.com\/zh\/product-category\/worm-and-worm-wheel\/\">food-grade worm gear sets<\/a> ship in matched sets from 50 to 125 mm centre distance with Z1 through Z4 material packages. Submit a <a style=\"color: #f59e0b; font-weight: 600;\" href=\"https:\/\/worm-and-worm-wheel.com\/zh\/contact\/\">bottling line drive specification<\/a> with line speed (bpm), number of stations, product type, and CIP regime.<\/p>\n<p><!-- \u2550\u2550\u2550 CLOSING CTA \u2550\u2550\u2550 --><\/p>\n<div id=\"contact\" style=\"background: linear-gradient(135deg,#0A2540 0%,#143662 100%); color: #fff; padding: 36px 32px; border-radius: 12px; margin: 32px 0 0; text-align: center;\">\n<h3 style=\"color: #fff; margin: 0 0 10px; font-size: clamp(19px,2.4vw+5px,25px); font-weight: 800;\">Specifying worm gear pairs for a bottling or filling line?<\/h3>\n<p style=\"color: #cbd5e1; max-width: 620px; margin: 0 auto 20px; font-size: clamp(13.5px,1.5vw+5px,15.5px); line-height: 1.7;\">Send line speed (bpm), number of stations, product type, bottle material, and CIP chemicals. We will classify each station by splash zone, recommend the material and seal package, and supply ratio-matched pairs as a set.<\/p>\n<p><a style=\"display: inline-block; background: #F59E0B; color: #0a2540; padding: 13px 28px; border-radius: 5px; font-weight: bold; text-decoration: none; font-size: 14.5px;\" href=\"mailto:sales@worm-and-worm-wheel.com\">Request a bottling line drive specification \u2192<\/a><\/p>\n<\/div>\n<p style=\"font-size: 12px; color: #94a3b8; margin: 24px 0 0; text-align: right;\">\u7f16\u8f91\uff1aCxm<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Korea Ever-Power \u00b7 Application Engineering Guide Worm and Worm Wheel for Bottling and Filling Line Drives A 400-bottle-per-minute soju line has five stations running simultaneously \u2014 rinser, filler, capper, labeller, and case packer. Each station has its own worm gear pair drive. If any single pair runs 2 percent faster or slower than its neighbours, [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[2821],"tags":[],"class_list":["post-1383","post","type-post","status-publish","format-standard","hentry","category-worm-and-worm-wheel"],"_links":{"self":[{"href":"https:\/\/worm-and-worm-wheel.com\/zh\/wp-json\/wp\/v2\/posts\/1383","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/worm-and-worm-wheel.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/worm-and-worm-wheel.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/zh\/wp-json\/wp\/v2\/comments?post=1383"}],"version-history":[{"count":1,"href":"https:\/\/worm-and-worm-wheel.com\/zh\/wp-json\/wp\/v2\/posts\/1383\/revisions"}],"predecessor-version":[{"id":1384,"href":"https:\/\/worm-and-worm-wheel.com\/zh\/wp-json\/wp\/v2\/posts\/1383\/revisions\/1384"}],"wp:attachment":[{"href":"https:\/\/worm-and-worm-wheel.com\/zh\/wp-json\/wp\/v2\/media?parent=1383"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/zh\/wp-json\/wp\/v2\/categories?post=1383"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/zh\/wp-json\/wp\/v2\/tags?post=1383"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}