Custom Gear Machining
Sango provides end-to-end custom gear machining services from rapid prototyping (1 pc) to volume production. Capabilities include CNC hobbing, power skiving, shaping, continuous generating grinding to DIN 4 / AGMA 13, and complete heat treatment.
Sango Automation Limited is a comprehensive precision gear manufacturing partner in China. With over 20 years of gear cutting expertise, ISO 9001:2015 and IATF 16949 certified quality management, we deliver bespoke gear components to demanding global OEM clients.
Features & Advantages
Complete in-house manufacturing chain from raw forging blank to sub-micron gear tooth grinding.
Complete In-House Multi-Process Manufacturing
Blank turning, CNC hobbing, power skiving, broaching, shaping, vacuum carburizing, CNC tooth grinding, and laser engraving all executed under one roof.
DIN 4 / ISO 4 / AGMA 13 Precision Tolerances
Equipped with Reishauer and Klingelnberg gear grinders, achieving tooth pitch error ≤ 2.5 μm and surface roughness Ra ≤ 0.2 μm.
Flexible Production: 1 pc Prototype to 50,000+ pcs
Rapid CNC gear prototyping within 5–7 days, scaling seamlessly to multi-cavity automated high-volume production.
Advanced In-House Heat Treating & Metallurgical Lab
Vacuum carburizing, nitriding, cryogenic tempering, and shot peening with full cross-sectional microstructure and hardness depth verification.
Technical Specifications
Machining capabilities, size limits, and achievable tolerances for bespoke gear manufacturing.
| Capability Parameter | Standard Machining Range | Precision Ground Limits |
|---|---|---|
| Gear Module Range | 0.2 – 20.0 Module | 0.2 – 16.0 Module (Ground) |
| Diameter Capability | Ø 5 mm – Ø 1,200 mm | Ø 8 mm – Ø 800 mm |
| Tooth Accuracy Grade | ISO 7–8 / DIN 7–8 (Cut) | ISO 4–5 / DIN 4–5 / AGMA 13 (Ground) |
| Tooth Surface Finish | Ra ≤ 1.6 μm | Ra ≤ 0.2 μm (Superfinished Ra ≤ 0.08 μm) |
| Materials Supported | Carbon / Alloy Steel, Stainless Steel | 20CrMnTi, 18CrNiMo7-6, Titanium, PEEK, Bronze |
| Gear Types Covered | Spur, Helical, Bevel, Worm, Internal | Hypoid, Sun Gear, Spline Shafts, Cluster Gears |
| Quality Certifications | ISO 9001:2015 | ISO 9001, IATF 16949, RoHS, REACH |
Sango Factory Direct vs. Conventional Machine Shops
Why leading automation and robotics OEMs choose Sango for custom precision gear projects.
| Capability | Sango Precision Gear Cells | Conventional General Machine Shops |
|---|---|---|
| Specialized Gear Grinding | Dedicated Reishauer & Klingelnberg CNC grinders | General milling cutters; incapable of DIN 4 precision |
| Metrology & Inspection | Zeiss 3D CMM & Klingelnberg P26 gear analyzers | Standard calipers/micrometers; no involute graph reports |
| Heat Treatment Control | In-house vacuum carburizing with zero distortion | Outsourced heat treat; risk of tooth warping & cracking |
| Engineering DFM Support | Dedicated gear tooth calculation & crowning review | Build to print only without design optimization |
| Quality Guarantee | 100% replacement or refund fit guarantee | Disputed liability on gear noise and premature wear |
Application Scenarios
Custom gears manufactured by Sango power industrial robotics, precision medical diagnostic equipment, aerospace actuators, high-speed rail systems, and precision packaging machinery.
