Write to the engranaje helicoidal desk in Ansan.
Drawings arrive, a live engineer — not a chatbot — reviews them under NDA, and a quotation with technical comments lands back in your inbox inside one Korean working day. No call-centres, no routing desks, no "case numbers" between you and the person who will actually make your gears.
/ OFFICE
Sandan-ro, Danwon-gu,Ansan-si, Gyeonggi-do, Korea
Four reasons Korean and Japanese OEMs keep coming back.
A worm gear enquiry can go to many places — a local trading house, a tier-1 importer, a catalogue aggregator. Coming to Ever-Power directly trades away a comforting layer of middle-men for four specific advantages that matter over a multi-year supply relationship.
Engineer-to-engineer
Your first reply comes from a production engineer who understands the drawing. Not a salesperson parroting a datasheet. Technical questions get technical answers in the same email.
24-hour quote
Catalogue items quoted inside one Korean working day; custom geometries inside three. Compare to the 5-to-10-day turnaround typical of the larger Japanese tier-1 houses.
NDA before quotation
Your drawing is NDA-covered before our engineering desk opens the file. Standard practice for tier-1 automotive and precision machine-tool work — not an optional extra that costs a line item.
No minimum headcount
Two-piece prototype MOQ. Whether you are a ten-engineer startup or a 400-person manufacturer, the enquiry moves through the same desk at the same speed. Every project is real work.
How to reach the right person, first time.
The table below is the complete list of direct channels into the Ansan office. We deliberately keep it short — every channel is checked by a real human during Korean business hours, so there are no abandoned mailboxes or automated forwarders in the way of your enquiry. Use the channel that best matches what you are sending.
What to send with your first email
A complete first enquiry saves a full email round-trip. If you can, include:
- 2D drawing (DXF, DWG, or PDF with dimensions)
- Quantity — prototype, pilot run, and annual production
- Application and duty cycle, even one sentence helps
- Target delivery date, or "as soon as possible"
- Any existing supplier we are benchmarking against
Urgent sample needed?
Write the word "SAMPLE" in the subject line. Sample-priority enquiries are pulled from the main queue and answered first — typically within four Korean business hours.
What happens after you hit send.
Clear expectations reduce enquiry anxiety. Here is exactly what happens from the moment your email arrives in the Ansan inbox to the moment a signed commercial offer reaches your desk. The timings below are the median over the last twelve months of enquiries from Korean and Japanese OEMs — outliers exist in both directions, but this is what you should budget for.
Email receivedinstantly
The email lands in the shared sales-engineering inbox and is tagged by subject. Automotive, machine-tool, food/pharma, and general-industrial enquiries each route to the engineer who handles that domain day-to-day.
Acknowledgement sentwithin 1 hour (office hours)
A human acknowledgement goes back confirming receipt, the engineer assigned, and the expected response window for the full quotation. This is not a boilerplate auto-responder — each acknowledgement names the engineer and gives a realistic timeline.
Drawing review & clarificationssame day
The assigned engineer opens the drawing, checks for missing specifications (tolerance call-outs, heat-treatment requirements, surface finish notes), and sends a single consolidated clarification email. Bundling questions in one message rather than drip-feeding them saves both sides several email rounds.
Technical & commercial quotation1 – 3 working days
Once clarifications are resolved, the full quotation lands in your inbox. Catalogue items quoted inside one working day; custom geometries inside three. The quotation includes pricing at three volume breaks, proposed material pair, accuracy class, lead time, and any engineering observations the desk thinks you should know about before committing.
Order confirmation & PPAP kick-offupon PO
After the purchase order is issued, a confirmation with an assigned production-order number, scheduled dispatch date, and — for automotive tier-1 projects — the PPAP document package schedule. Weekly status updates follow until dispatch.
What we can — and can't — help with.
The Ansan operation is a specialist shop, not a general engineering services firm. Being clear about what falls inside and outside our scope helps you route your enquiry correctly on the first try. If your project is outside our scope, we are happy to recommend a partner shop that can help — just ask.
Inside our scope
- Worm gears and worm wheels — from Ø5 mm micro-module instrument wheels to Ø300 mm industrial wheels, in bronze, steel, stainless, plastic.
- Worm shafts — single, double, triple, quadruple start; hardened and ground alloy steel standard.
- Complete worm gear reducers — sealed oil-filled housings in catalogue sizes and custom envelopes.
- Motor-flange worm gearboxes — NEMA and IEC input flanges for servo and stepper motors.
- Reverse engineering — working from a sample when the original drawing is lost, 5-step protocol with photographic inspection and CMM verification.
- Material upgrades — converting an existing drive from carbon steel to stainless, or from mineral oil to synthetic lubrication.
- Custom tooth profiles — non-standard module, profile shift, or tip relief when the application demands it.
- IATF 16949 PPAP packages — full tier-1 automotive documentation on request.
Outside our scope (we will refer)
- Spur, helical, or bevel gears alone — partner shops in Ansan cover these; we will introduce you if the project needs one.
- Planetary gearboxes — a different engineering discipline; referrals available.
- Complete motion-control systems with motors, drives, and controllers — we supply the mechanical half only.
- Stock distribution — we manufacture to order, not to stock. If you need same-week delivery from warehouse inventory, the big catalogue distributors are faster.
- Consumer-grade applications below the quality threshold our production line is calibrated for — generic toy-grade drives, disposable single-use geometries.
- Counterfeit or brand-marked replacements — we only supply components under our own manufacturer name; requests to apply a third-party brand are refused without exception.
Questions that come up in most first emails.
Six questions cover roughly 80 % of what a first-time enquirer asks before sending their drawing. Reading them now saves a round-trip or two of email once the real conversation starts.
Do you provide free samples?
What is the minimum order quantity?
Can you sign an NDA before I send my drawing?
Do you ship outside Korea?
How long does a typical production order take?
What payment terms do you offer?
What happens to your drawing after you send it.
A short note on the non-technical side of the enquiry. When you email a drawing to the Ansan desk, three commitments apply by default — no signature required, no paid tier, no escalation.
We treat your drawing like our own product secret.
Every drawing that lands in the sales-engineering inbox is stored on an access-controlled internal server, visible only to the engineer assigned to the quotation. Drawings are never sent to third parties, never used to train public AI models, never shared in marketing material, and never referenced by name in catalogue samples. If you request drawing return or destruction after the project concludes — or if the project does not proceed — we confirm destruction in writing within five working days.
Thank you for considering Korea Ever-Power Worm And Worm Wheel Co., Ltd as a supplier. Whether this is your first enquiry or your fiftieth repeat order, the Ansan desk treats every email with the same engineering care — because every order ultimately reaches a machine that someone in your factory depends on working reliably. That outcome matters more to us than the margin on any one job.
