Reliable Crankshaft Manufacturer in China – OEM & Forging Supplier
Looking for a reliable crankshaft machining manufacturer in China?
We specialize in precision CNC machining of crankshafts, eccentric shafts, and small transmission components used in electric motors, automation systems, and motion control. Equipped with advanced 5-axis machining centers, in-house heat treatment, and precision grinding, we deliver crankshafts with ±0.005mm tolerance for demanding OEM applications. Whether you need prototypes or low-volume production, we offer full support based on your technical drawings or samples.
Crankshaft Production
one-stop machining service for crankshaft projects
Crankshaft cnc machining
From prototyping to small batch production
Motor Crankshafts
The eccentric shaft of RV reducer.
Reducer crankshafts
Material selection, heat treatment, available upon request
Why choose us
Why Choose Us as Your Crankshaft Machining Manufacturer
- ✅ Dedicated to Small Precision Crankshafts
Focused on motor shafts, automation cranks, and miniature eccentric shafts. - ✅ OEM & Custom Machining Service
We machine according to your drawings, materials, and tolerances. - ✅ Global Export Experience
Trusted by automation, EV, and robotics companies in Japan, Germany, and the U.S. - ✅ Fast Communication & Reliable Delivery
English-speaking engineers, flexible MOQ, and stable lead times (15–35 working days).
Crankshaft Applications
Our CNC-machined crankshafts are engineered for high-precision use in:
- Electric Motors
Fuel pump drives, cooling fans, household appliances, automotive auxiliary systems - Automation & Assembly Equipment
Packaging lines, feeders, textile machines, pick-and-place units requiring synchronized motion - Industrial Motion Systems
Robotics, conveyors, smart manufacturing cells with continuous rotary-to-linear motion needs
If your equipment relies on precise torque transmission, eccentric rotation, or compact linkage design, our crankshaft machining services provide the accuracy and durability you require.
Types of Crankshafts
| Type | Description |
|---|---|
| Motor Crankshafts | CNC machined for high-speed electric motors with precision fits |
| Automation Crankshafts | Used in cam-driven motion and pick-and-place systems |
| Eccentric Shafts | Custom pin offset machining for oscillating systems |
| Stepped Crankshafts | Multi-diameter shafts for multi-part assemblies |
Note: We focus on small-to-medium precision crankshafts, not heavy engine forgings.
FAQ – Crankshaft Sourcing Guide
Q1: Can you machine crankshafts based on our 2D/3D drawings?
Yes, we provide full OEM machining services for crankshafts, with material sourcing, heat treatment, and inspection support.
Q2: What industries use your crankshafts?
Mainly automation systems, motor manufacturers, EV subsystems, and smart appliance OEMs.
Q3: What tolerance can you achieve?
Standard crankshaft machining tolerance is ±0.005mm. Tighter tolerances upon request.
Q4: Do you offer samples or small batch machining?
Yes. Prototypes, one-off parts, or pilot batch machining are welcome.
Q5: What materials can you machine?
Common materials include 42CrMo, SCM435, stainless steel, brass, and aluminum alloys.