China Top 1 Precision CNC Machining Manufacturers
Sinster is the best precision CNC machining manufacturers in East China.
Choosing a machining manufacturer partner can be a complex decision. It is no longer to select a machining manufacturer who can produce the parts within the tolerance. It is importance now lies in finding a company that can keep the parts’ surface smoothly, can add value across the entire production process and allow you to focus your time and resources on helping your business grow.
China has many many of precision CNC machining manufacturers, in the north, in the south, in the east, and in the west. 90% of the machining manufactures are the same, they are good at producing size parts. These CNC machining manufacturers don’t know how to produce appearance parts, even if you give them equal expensive price. But the other 10% precision CNC machining manufactures focus on high quality of appearance parts. SINSTER is one of the 10% top precision CNC machining companies.
If you audit a precision CNC machining company, you have to know its history, introduction, certificates, machines, workers, inspection, maintenance, training, tools, etc. You can see SINSTER audit report as an example.
SINSTER founded in 1982, at present, SINSTER is a top precision CNC machining manufacturer in Ningbo, including CNC machining services, Lost wax investment casting services, Forging services, and metal stamping services.
SINSTER always has a operation principle in heart, “Customer First, Quality First”.
1. 7 days refundable without reason
2. 1 year warranty
3. 0.1% per day delayed fine
1. ISO9001 & 5S Management
2. 100% inspection
3. More than 3 times inspection for each item
At the beginning of founding, SINSTER only developed 100 kinds parts and finished 30000pcs per year.
In 2017, SINSTER already developed 10000 kinds parts and finished 5000000pcs per year.
SINSTER predicts SINSTER will develop 30000 kinds parts and finish 20000000pcs in 2020.
SINSTER has 5000m2 Factory, we have CNC machining workshop, Casting workshop, Stamping Workshop
and Forging workshop. SINSTER has 25pcs CNC machines, 6pcs CNC machining centers, 4pcs CNC
stamping machines, 2pcs large deep drawing machines, etc.
SINSTER’s people is strict and lively, positive and antrorse, we embrace customers, we embrace future!!!
SINSTER can produce all the materials, such as stainless steel, aluminum, brass, carbon steel, titanium, plastic, etc.
Valid business license: Yes
Business license number: 92330226MA2AFA8T7L
Year of Established: 1982
Facility Address: Zhangjiaxi Village, Qiaotouhu Street, Ninghai, Ningbo China
Type of company: Manufacturer
Type of Ownership: Individual business
Total Area (M2): 3300M2
Production Area (M2): 2500M2
Office Area (M2): 100M2
Raw Material cutting procedure
CNC machining procedure
CNC milling procedure
CNC drilling procedure
CNC stamping procedure
CNC tapping procedure
Automatic polishing procedure
Manual polishing procedure
Water pressure test procedure
Shot blasting procedure
Sand blasting procedure
Ultrasonic cleaning procedure
Production line: 4
Capacity of year: 10000000PCS
Actual output of year: 6200000PCS
3 engineers have more than 15 years experience and 1 engineer has 10 years experience.
AutoCAD and Pro-E are commonly used.
1. Independent quality department and quality manager available on site
2. Quality manager reported to top management directly
3. Independent QC available
4. Any inspection standard documented
1. Evaluation procedure available
2. The newest list of approved suppliers available
3. Procedure and record for contract evaluation available
4. Internal audit procedure and record available
1. Procedure and record for IQC available
2. Procedure and record for PQC available
3. Procedure and record for FQC available
4. Procedure and record for defective control
1. Procedure for claim treatment available
2. Clear procedure for claim and CAP available
3. Tracking identification on finished products or its package available
4. Procedure for products recall available
1. 2 exits available in the area
2. Emergence lights and exit signs on the exit
3. Fire equipments available
4. Aisles are free from blocks
5. PPE available for special operation
6. First aid in the area
7. Monitor for noisy, waste and chemicals in area conducted per year
8. Clean drink water available in the area
9. Canteen available
10. Fire equipment available in canteen
1. Documents for environment available
2. Report for environment approval available
3. Procedure for energy saving and air emission available
1. Monitor for noisy conducted
2. Monitor for waste water conducted
3. Monitor for waste air conducted
4. A specialist company is assigned to treat all solid waste in factory
You can see the equipments if they are the newest model, newest model is usually most advanced, it can control the surface finish quality strictly.
You can see the outsourcing companies if they have Quality System Regulations; if they have Quality Control Unit; if they have a formal documented employee training program; if Quality Control Unit function independently of Production; if they have a specialist test lab.
You can see the outsourcing suppliers if their production is smoothly; if they have spare capacity.
Environment is a most important element to judge if it is best or not. You can check everywhere if they put the rack tools tidily and separate the different kinds of rack tools; if everywhere is clean enough; if warehouse is tidily and separate the different kind if finished parts.
The outsourcing companies must have the environment protection certificate, which is awarded by government. They must have waste water treatment equipments, and works well every minutes. If they don’t have above, it is a big possible that they will be stopped some days in the future. It is also big risk for precision CNC machining manufacturers’ delivery time.
1. SINSTER guarantees that all work performed, or material provided conform to the mutually agreed upon specifications
2. SINSTER will not to change any part of the specification without prior written approval? This includes materials, sources of materials, methods or other critical specifications.
3. SINSTER has a system in place to ensure that the most recent specification is readily available to the appropriate personnel from the purchasing liaison.
4. SINSTER will have a meeting every Monday.
5. SINSTER’s employees have adequate education and training to perform their designated job.
6. SINSTER has a formal documented employee training program exist for Quality Control, Job Related Functions, and Quality System Regulations.
7. SINSTER has a Quality Control Unit and the Quality Control Unit function independently of Production.
8. SINSTER’s environmental conditions of the product and the cycle properly monitored
9. SINSTER’s precision cnc machining factory is clean everywhere.
10. SINSTER will check the inspection tools every 12 months.
11. SINSTER will do inspection according inspection instruction, which is agreed by both customers and precision machining company.
12. SINSTER will do inspection report for each shipment
13. SINSTER will inspect the surface according to AQL 0.65
14. SINSTER will provide 8D report when defecting.
15. SINSTER will do RoHS approved zinc plating
16. SINSTER will record the raw material in stock when receiving.
17. SINSTER’s products are clean and rust protection.
18. SINSTER’s all product adequately marked as to its status.
19. All process charts approved and signed for each cycle by Manufacturing and quality control.
20. SINSTER’s product integrity adequately verified after sterility by Quality Control and documented.
21. SINSTER will pack the parts according to package instruction, which is agreed by both customers and precision machining company.
22. Take photos for record before shipment.