Our Quality Assurance

We understand that precision and quality are non - negotiable for rubber molded parts. At Zhonggao, we uphold the strictest quality control standards throughout the molding process. Our advanced equipment, along with our team's meticulous attention to detail, ensures each rubber product is made to exact specifications, even the most stringent tolerances.
Our Quality Assurance

Our Quality Control

Raw material inspection - Rubber plasticizing - Rubber mixing - Rubber calendering or extrusion - Rubber molding - Vulcanization - Finished product inspection (manual & equipment testing)
Press Machine
Press Machine
The press machine is involved in the laboratory raw material test. It is used to compress rubber raw materials, assess their molding properties and quality under pressure.
Flash Tester
Flash Tester
The flash tester is utilized for precision measurement. It can quickly measure size parameters of rubber parts, such as thickness or hardness.
Automatic Full Inspection Machine
Automatic Full Inspection Machine
In automatic full inspection, the inspection machine systematically evaluates the appearance, dimensions, and internal structures of rubber parts.

Our Certifications

IATF16949

IATF16949

ISO9001

ISO9001

ISO14001

ISO14001

ISO45001

ISO45001

FAQ

Q: Are you a trading company or manufacturer?

A: We are a professional manufacturer specialized in rubber and plastic products. And we trade our products with our clients directly.

Q: How many different types of products your company manufactures?

A: Now we have more than 10,000 products. We have a strong advantage of OEM, just give us the actual products or your idea that you want, we will manufacture for you.

Q: How can we get a quote?

A: Contact us with specification: such as size,material, hardness, color, quantity, and if with drawing etc.

Q: What is the lead - time for molded rubber parts?

A: The general delivery time is 10-25 days after receiving your order confirmation. Otherwise, if we have the goods in stock, it will only take 3-8 days.

Q: Can Zhonggao help me with the design of custom rubber parts?

A: Yes, simple designs are free, and special designs need to be paid for.

Q: Does Zhonggao have the test and audit service?

A: Yes, we can assist to get the designated test report for product and the designated factory audit report.

Q: Can Zhonggao do OEM and ODM?

A: Yes, OEM and ODM are both acceptable. The material, color, style can be customized, the basic quantity we will advise after we discuss.

Q: What's the warranty?

A: Our quality warranty period is one year. Any quality problem will be solved to customer satisfaction.

Q: What's your rubber parts MOQ?

A: If we have the products in stock, it will be no MOQ. If we need to custom rubber parts, we can discuss the MOQ according to your exact situation.

Q: Can I visit your factory?

A: By all means, we warmly welcome your arrival, Before you take off from your country, please let us know. We will show you the way and arrange time to pick you up if possible.