Insist On High-quality
As a growing OEM machine company, aluminum products, steel products, Panel Overlays and precision assembly products are the specialty of ZONSAN.We excel in manufacturing high precision , high production custom parts to meet ISO 9001:2015 certification. Our machine shop service including CNC turning, CNC milling, Grinding machining, Aluminum Machining and more. We machine a wide assortment of material serving a variety of industries.
Grinding Machining
Centerless grinding machines is usually used for shaft machining which has high requirements on precision hardness of tungsten steel and alloy steel should be higher than HRC60.The best precision can be up to 0.0005MM.
ZONSAN has 8 surface grinders which can be used for grinding of complex square and round workpieces. The grinding precision can be up to 0.002mm. The roughness of both flat and round workpiece can be up to RA0.02um, RZ0.1um. And the flatness can be up to 0.001
| Equipment Name | Quantity | Accuracy |
| Taiwan Hyfair Surface grinder 614# | 6 sets | ±0.001mm |
| Switzerland Centerless Grinding Machine 10# | 1 set | ±0.0003mm |
| Japan Micron Centerless Grinding Machine 450 | 1 set | ±0.0005mm |
| Switzerland Internal and External Cylindrical Grinding Machine | 2 sets | ±0.001mm |
| Taiwan Jainnher Centerless Grinding Machine 18# | 3 sets | ±0.001mm |
| Japan Nippei Centerless Grinding Machine 20# | 1 set | ±0.001mm |
How we do
1. Roughness :
A good roughness for aluminum enclosure or aluminum housing, it not only requie a high precision CNC machines but also ask very rich experience.
Our factory have 6 years experience on custom aluminum parts, continuous accumulation of machining experience, below are photos for reference.
2. Package:
We use EPE foam or vacuum package to protect aluminum surface very well.
Also we will wrap them during aluminum CNC machining process to avoid any damage.
Machining Process
Our main process is Raw material incoming – Machining – Secondary process – Surface treatment – QC report – Package & Shipping , please check below more details.
Our main machines in workshop are high-speed CNC machines with 3 axis and 4 axis, all cutting tools and machines are service for alumunim material, we have the strong advantage than other suppliers.
This is our CNC aluminum milling video for reference, you can have a look.
Quality Control
Our QC team have 3~4 workers, main test instruments are 2.5D, 3D CMM , Roughness instruments and Hardness instruments.
100% inspection before shipping including material checking, dimensions inspection, roughness checking, hardness checking and appearance checking.
More related machining examples
Below custom aluminum parts were made for some customers before, they are all not confidential..
But there are still lots of nice and complicated parts can’t be able to show as they are secret to customers, we signed the NDA agreement to protect it.