
Utilizing 5-axis CNC machining centers, we process complex curved surfaces and precision structures in the robotics industry. We specialize particularly in the integrated molding of core robotic components, such as joint housings, reducer structural parts, linkage mechanisms, and various irregular thin-walled components.

We provide high-precision sheet metal cutting, bending and welding services to ensure that robot structural components achieve lightweight, high strength and excellent rigidity performance. Whether it is robot body covers, joint brackets, or various customized sheet metal modules, we can meet the requirements of robot equipment in terms of stability, durability and long-term operation through precision machining and strict quality control.

We use high-precision CNC milling machines to manufacture complex geometries and tight-tolerance components, meeting the demanding requirements of robot core parts. This is especially suitable for machining critical areas such as joint transmission assemblies and key reducer components.

Using precision CNC Turning machines to machine rotating parts, ensuring high accuracy, rigidity, and surface integrity, while accommodating the processing of special materials.

Combining milling and turning processes, completing multi-surface machining in a single setup, ensuring critical geometric tolerances and assembly consistency, while improving machining efficiency.

We use Swiss CNC machines for high-precision machining of small components, specializing in slender and tight-tolerance parts for the robotics industry—such as sensor shafts, micro connectors, and precision transmission elements. This equipment fully meets the robotics sector’s requirements for miniaturization, complex structures, and strict machining standards.














| Permissible deviations in mm for ranges in nominal lengths | Tolerance class:designation (description) | |||
|---|---|---|---|---|
| f (fine) | m (medium) | c (coarse) | ||
| Linear Dimensions | ||||
| 0.5 up to 3 | ±0.05 | ±0.1 | ±0.2 | |
| over 3 up to 6 | ±0.05 | ±0.1 | ±0.3 | |
| over 6 up to 30 | ±0.1 | ±0.2 | ±0.5 | |
| over 30 up to 120 | ±0.15 | ±0.3 | ±0.8 | |
| over 120 up to 400 | ±0.2 | ±0.5 | ±1.2 | |
| over 400 up to 1000 | ±0.3 | ±0.8 | ±2.0 | |
| over 1000 up to 2000 | ±0.5 | ±1.2 | ±3.0 | |
| over 2000 up to 4000 | - | ±2.0 | ±4.0 | |
| External Radius and Chamfer Heights | ||||
| 0.5 up to 3 | ±0.2 | ±0.2 | ±0.4 | |
| over 3 up to 6 | ±0.5 | ±0.5 | ±1.0 | |
| over 6 | ±1.0 | ±1.0 | ±2.0 | |
| Angular Dimensions | ||||
| up to 10 | ±1º | ±1º | ±1º30' | |
| over 10 up to 50 | ±0º30' | ±0º30' | ±1º | |
| over 50 up to 120 | ±0º20' | ±0º20' | ±0º30' | |
| over 120 up to 400 | ±0º10' | ±0º10' | ±0º15' | |
| over 400 | ±0º5' | ±0º5' | ±0º10' | |




A: Grippers
Housings and fixtures
Arm components
Robotics assemblies
Networking technology
Autonomous vehicles
Animatronics
Commercial and defense robotics
A: Yumei offers a wide range of robot kits, including industrial robotics, surgical robotics, industrial automation, commercial and defense robotics, consumer robotics, autonomous vehicles, animatronics and more.
A: Our samples can be done within 1 day as soon as we have raw material in stock and there is no surface treatment for the part,3-5 days is our normal time for the samples,regarding the mass production time,it depends on the order quantity,normally 7-15 days.
Yumei Hardware produced precision copper parts for a leading North American energy storage company, holding ±0.01 mm tolerance on thin-wall copper features of 0.2 mm or less. This case study covers the project background, the machining challenges, our CNC machining solution, and the results. Project Background The client is a leading North American new energy […]
Choosing the right copper alloy for CNC machining requires balancing conductivity, machinability, dimensional accuracy, and production cost. Compare C101, C110, C145 to find the right material for your application.
Copper CNC machining looks simple until the first chips start wrapping around the tool. Copper is soft, ductile and an excellent conductor of heat, so it behaves very differently from steel or aluminum on the machine. This guide explains which tools to choose, which cutting parameters to start from, and how to avoid the problems […]
