Product Focus
Custom and OEM gears for machinery, vehicles, agricultural equipment, construction machinery, and transmission assemblies.
About the factory
A Gear Manufacturing Brand Rebuilt for Overseas Buyer Trust
ZhongYi Gear Manufacturer is a member of ZhongYi Machinery, supported by Wenling ZhongYi manufacturing experience, product clarity, factory evidence, and responsive RFQ communication.
Company profile
Confirmed company information used as the trust foundation.
The company profile presents verified base information and keeps quality claims tied to available documentation.
| Company | ZhongYi Gear Manufacturer (a member of ZhongYi Machinery) |
|---|---|
| Legacy Company | Wenling ZhongYi Sewing Equipment Co., Ltd. |
| Founded | 2003 |
| Experience | 20+ years in gear manufacturing |
| Gear Categories | 500+ |
| Annual Output | 500,000+ |
| Production Base | 2,800+ m2 |
| Quality System | ISO9001 quality system certification |
Factory trust
Trust is built from evidence, not decoration.
Factory capability, process control, and communication transparency support procurement due diligence.
- Factory history and company identity are shown clearly for overseas buyer verification
- Workshop, process, and inspection sections use real factory images and confirmed data
- Custom gear quotation starts from drawings, samples, and confirmed technical requirements
- Certification numbers, customer names, and export markets are added only after verification
Manufacturing Evidence
Workshop, productive power, manufacturing process, and detection equipment information are presented with real images and confirmed descriptions.
Buyer Communication
Clear RFQ guidance helps buyers provide drawings, samples, materials, technical requirements, and order quantities before quotation.
OEM Partnerships
Proven Track Record with Industry-Leading OEM Partners.
ZhongYi Machinery has manufactured gears, shafts, and transmission assemblies for premier industrial, automotive, and power equipment manufacturers.
Weichai Power Powertrain & Diesel Engines
Gaomi Runda Engine Oil Pumps
Newstart Reducer Planetary Gearboxes
Jiangnan CNC Machine Tool Drives
Jintai Desheng Electric Motors & Drives
Quality verification
9-Stage Closed-Loop Manufacturing & Quality Inspection Process.
Strict quality checkpoints from incoming raw bar stock to outbound export packaging guarantee zero-defect compliance with customer drawings.
01
Incoming Raw Material Inspection
Spectrometer chemical composition check, ultrasonic bar flaw testing, and steel mill certificate verification.
02
Process Self-Inspection
Operators check first-off piece blank dimensions, centering, and turning tolerances before batch processing.
03
Operator In-Line Verification
Continuous monitoring of bore fits, face runout, and tooth thickness throughout hobbing and shaping.
04
Routing Section Patrol Inspection
Roving QC engineers conduct random sampling and process audit across all machining cells.
05
Special Heat-Treatment Inspection
Metallographic analysis, carburized case depth verification, and surface Rockwell hardness (58-62 HRC) check.
06
Final Dimensional Inspection
Zeiss 3D CMM and Klingelnberg gear testing centers measuring lead crowning, profile, and tooth runout.
07
Finished Product Inspection
Flank roughness profiling (Ra ≤ 0.4 µm), tooth contact pattern rolling check, and spline go/no-go gauging.
08
Anti-Rust & Packaging Inspection
Ultrasonic cleaning, high-performance anti-rust oil application, and individual vacuum vapor barrier wrapping.
09
Outbound QA Re-Inspection
Final pre-dispatch audit of crate seaworthiness, moisture-proof barrier, barcode labeling, and EN 10204 3.1 MTR records.
Request a quote
Send drawings, samples, or technical requirements for review.
Our team can review your gear type, material, heat treatment, tolerance, order quantity, and application conditions before quotation.