TURSTED BY INDUSTURRY LEADERS
Ruizheng Precison Machinery are proud to have supported projects and manufacturing needs for customers and partners across the automotive, industrial automation, robotics, power tools, HVAC, construction equipment, and UAV industries.
Haas · Bosch · Hitachi · MISUMI · Daikin · ABB · JCB · FANUC · KAMAZ · Leapmotor · DEWALT · Midea · KUKA · GMCC · Haozhi · EngineAI · Diamex
Our custom fabricated products
Ruizheng provide CNC machining and customized production services for shaft parts in various industries. Here are the products and services we can customize.

Spindle Part
Spindle Part is the core component used to transmit power and support rotational motion in mechanical equipment. It is widely used in machine tools, lathes, grinders, automobile manufacturing, semiconductor equipment, aerospace and other fields. The precision of Spindle Part produced by our factory can reach 0.002mm, and the concentricity can reach 0.001mm.

Step Shaft
Step Shaft is widely used in many fields and industries such as machinery manufacturing, automobile industry, aerospace, energy industry, electronic equipment, and household appliances.

Valve core and valve body
Valve core and valve body are important parts of valves. They have high precision and reliability and are widely used in air conditioners, household appliances, medical equipment, automobile industry, water supply and drainage systems, and industrial piping systems.

Custom Bearing housing
We equipped with CNC cylindrical grinding machines and automatic measuring instruments for online inspection.We have a temperature-controlled workshop, achieving an accuracy of 0.002mm and a concentricity of 0.001mm.We specialize in mass production of various non-standard bearing housings and provide customized solutions for different industries.

CNC Part
CNC Parts are widely used in many fields and industries such as medical equipment, home appliances, electronics and semiconductors, automotive industry, aerospace, and machinery manufacturing due to their high precision and reliability.

Custom Crankshaft
Custom Crankshaft is a high-performance crankshaft designed and manufactured according to specific needs. It is used in automobiles, motorcycles, ships, aviation, industrial machinery and other fields. Custom Crankshaft has high precision, high strength and durability.
Our Services
- CNC Turning, Milling and Grinding at the same time with constant workshop
- Germany Zeiss CMM(The world’s top testing equipment )
- Customized service performance
- Provide assemble service for One-stop problem solving and saving cost
- 0.002mm highest precision tolerance
- Online video inspection and Escrow-Third party inspection
100% compensation for quality problems all the time





Customer Feedback
Certificate

How to Specify UAV Connecting Rods for Smooth Piston Movement
Specify a UAV connecting rod from the engine design, bearing arrangement, operating load, speed range, lubrication system, material condition, and validation plan. The drawing should define the big-end and small-end bore geometry, center-to-center distance, axis

Cost, Precision, and Geometry: Comparing CNC Turning vs CNC Milling for Custom Parts
CNC turning is usually the better starting point for parts built around a central axis, while CNC milling is required for flat faces, pockets, off-center holes, and other non-rotational features. Parts that combine both feature

How UAV Engine Cylinder Inspection Prevents Mid-Flight Power Loss
During long-endurance missions for industrial fuel-powered drones, engine failure is not an option. A minor drop in compression at altitude triggers sudden thrust degradation, excessive vibration, or complete engine seizure. Performing rigorous UAV Engine Cylinder

How Material Selection and Heat Treatment Impact Custom Machine Tool Spindle Shaft Manufacturing
Operating industrial equipment under heavy radial loads and extreme rotational speeds instantly exposes any structural weakness in the mechanical design. When a custom machine tool spindle shaft lacks the proper metallurgical foundation, the resulting thermal distortion

Key QC Questions for Your UAV Engine Crankshaft Manufacturer Before Ordering
Fuel-powered UAV engines place rotating components under repeated mechanical and thermal load. When a crankshaft journal is incorrectly positioned, distorted after heat treatment, or finished from the wrong datum, the problem can spread through the

Essential Buyer Guide to Custom Automotive Connecting Rod Manufacturing and Tolerances
High-rpm and high-load engines depend on more than the nominal dimensions of a connecting rod. Big-end and small-end bore geometry, center-to-center distance, material condition, heat treatment, and the relationship between these features all affect bearing