Door Lock Gears & Actuators
Our largest family: small-module gears and complete gearboxes for central locking, door lock and tailgate lock actuators.
Precision Plastic Gears & Gearboxes
Custom-molded in Wenzhou, China — send us your drawing, and we build the tooling and mold your gears, gear sets and drive modules under one roof.
In-house toolingPOM · Nylon · PC · ABSCustom OEM onlyWenzhou, ChinaMicro gearboxes Ø 3.4–38 mm
What We Make
Everything is molded to your drawing — no off-the-shelf parts. Four product groups cover door lock gears, single gears, matched gear sets, and complete drive modules with housings.
Gearboxes & Drive Modules
Complete housed drive units — automotive actuator gearboxes, EPB gearboxes, fuel tank cap and auto-reclosing gearboxes, and robot vacuum wheel modules, ready to drop into your product.
Gear Sets
Matched sets that mesh together: worm gear & worm wheel sets, helical & worm combinations, and planetary gear sets.
Gears & Components
Single precision gears and custom motion parts — helical gears, small-module gears, bevel & internal gears, pinions, racks, linkages and special shapes.
Why Work With Us
One factory for tooling, molding and inspection — so changes to your drawing never get lost between suppliers.
In-House Tooling
We design, machine and maintain our own molds in our own tool room. Faster mold changes, quicker repairs, no third-party tooling shop in between.
Drawing Review & DFM
Send a 2D drawing, a 3D file or a physical sample. We review tooth geometry and moldability first, and flag design issues before any steel is cut.
Japanese Electric Machines
Production runs on Japanese all-electric injection molding machines, including FANUC ROBOSHOT — stable, repeatable molding for small precision gears.
Inspection Before Shipment
First-article, in-process and final inspection on every order. Inspection reports and material certificates are available on request.
Inside Our Factory
Every photo below was taken on our own floor in Wenzhou — the molding hall, the mold library, the tool room and the inspection bench your parts will pass through. See the full factory tour →
From Drawing to Production
Eight steps, each with its own quality gate — from drawing review with DFM to a final re-inspection before shipment.
01
Drawing Review & DFM
We check tooth geometry, tolerances and moldability, and send DFM feedback before quoting tooling.
02
Transmission Design Confirmed
Gear geometry, ratio and materials are confirmed with you — with meshing analysis and mold-flow checks where the drive needs them.
03
Mold Making
The mold is designed and machined in our own tool room, its cavities cut to your drawing.
04
T1 Samples
First shots off the new mold (T1) are molded and prepared for measurement.
05
Sample Inspection Report
Samples are measured — double-flank meshing and key dimensions — and the report goes to you with the samples.
06
Your Approval
Production starts only after you approve the samples and the report.
07
Mass Production
Approved parts run on our injection machines, with checks at set intervals during the run.
08
Final Inspection & Shipment
Finished parts are re-inspected before packing — what ships is what you approved.
Applications
Our gears and modules run inside products across automotive, smart home, appliances and small electrical drives.
Industry
Automotive
Door lock gears and lock actuator gearboxes first — plus HVAC flap, headlight, mirror and fuel cap actuators, and EPB gearboxes for passenger, commercial and new-energy vehicles.
Industry
Smart Home & Cleaning
Robot vacuum drive wheel modules, and quiet gear drives for smart trash bins, automatic curtains, smart valves and chandelier lifts.
Industry
Appliances & Personal Care
Gear drives for coffee machines, massage chairs, smart toilets, foot baths and electric wine openers — smooth and quiet, cycle after cycle.
Industry
Electrical & Small Drives
Auto-reclosing gearboxes for circuit breakers and smart meters, motor worm gears and small-module gear sets, including toy gearboxes.
Industry
Medical Devices
Micro gearboxes and micro gears as drive examples for insulin pumps, endoscopes, ventilators and other medical devices — tiny, quiet, custom to your drawing.
Industry
Robotics & Industrial
Drives for service and logistics robots, 5G antenna tuning units (RCU), valves, automation, instruments and power tools.
Have a gear to make?
Send your drawing or a photo of the sample. We will review it and come back with a tooling and unit-price quotation.