We provide precision 5-axis CNC machining for complex new-energy parts, including battery housings, cooling plates, EV components, and inverter heat-sink structures. Our advanced multi-axis capability delivers tight tolerances, excellent surface quality, and high reliability for prototypes and large scale production.
Yumei offers 3-axis, 4-axis, and 5-axis CNC milling to meet a wide range of manufacturing needs,This multi-axis CNC machining capability allows us to produce precision parts with tight tolerances and superior surface finishes, supporting prototypes, small batches, and mass production.
We provide high-precision CNC turning for complex new-energy parts, including EV shafts, threaded connectors, precision fittings, valve bodies, and thermal-management components.Our CNC turning capabilities support aluminum, copper, stainless steel, titanium and high-strength alloys
Mill-turn machining provides an integrated solution for producing complex rotational-plus-milled components in a single setup. This technology is ideal for parts requiring both precision turning and multi-surface milling, such as EV powertrain housings, battery cooling components, manifold blocks, high-pressure fittings, and inverter system parts.
By combining milling and turning cycles, mill-turn machining improves tolerance stability, geometric accuracy, surface finish, and reduces cycle time—supporting both high-performance and cost-efficient OEM production.
Swiss CNC machining is ideal for producing small, high-precision rotational components that require ultra-tight tolerances and excellent concentricity.
Swiss turning excels in machining long, slender, micro-sized, and complex geometry parts while maintaining micron-level accuracy.
Our sheet metal fabrication capabilities include laser cutting, CNC bending, TIG/MIG welding,assembly and surface treatments for steel,aluminum and stainless steel materials,we deliver high quality sheet metal parts for demanding new-energy applications. Ideal for prototypes, small batches, and scalable mass production.
| 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: We work with nickel-based superalloys,aluminum, stainless steel,alloy steel, copper, and titanium for high strength, corrosion resistance designs.
A: ISO 2768-m for metals and ISO 2768-c for plastics,Our CNC processes achieve tight tolerances down to ±0.01 mm, depending on the component size and complexity.
A: We provide anodizing, powder coating, electroplating, polishing, and passivation to enhance durability, corrosion resistance, and aesthetics.
A: Yes, we support rapid prototyping, small batches, and large-scale production for both CNC and sheet metal components.
A: We use CMM inspection, 2D projector,roughness testing, hardness testing, coating thickness measurement to ensure the quality meet the standards.
A: Yes,we do
A: Yumei combines advanced equipment, strict ISO-certified quality control, skilled engineers, and fast lead times to provide precise, durable, and scalable solutions for the New Energy industry.
This guide walks through the copper CNC machining process, from selecting raw material and programming toolpaths to cutting strategies and final inspection, so buyers can plan better copper parts.
A practical breakdown of CNC milling cost drivers—from material and tooling to cycle time—paired with proven strategies to lower machining expenses.
Discover how CNC machining tolerances are controlled and how process planning, tooling, temperature, inspection, and GD&T affect precision.
