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The leading manufacturer engaged in High
Frequency Welding Machine &
Plastic Vacuum Forming Machine.


Our technology has always being imitated but never being surpassed. Many customers bought similar machines from our competitors, however, they found it didn’t run smoothly, failed to make qualified products, finally they turn to us.

Always keeping the spirit of “Innovation Oriented, Credit Matters, Excellent Service & Mutual Benefits”.


We not only have professional customer-oriented marketing team, but also have R&D team which is leading by Technical Director of the company. We own the ability of innovation, value our credit. Customized machine and excellent service are provided.

Professional Site Management, 100% quality guaranteed machines.


From signing Purchase Order → Production Dept. → Re-check in Assembly → Commissioning & Inspection → Transportation Dept., all the procedures will be monitored by site administrators. Before sending to customer, the machine needs strict test in each progress. We have complete after-sale service, engineers are available to commission/repair machine overseas. The machine has one year warranty, we will offer free repair within one year.

The newly designed Automatic Positive and Negative Vacuum Forming Machine, High Speed, High Efficiency, Low Cost.




Our newly developed Automatic (auto feeding, auto forming, auto cutting & auto stacking) Positive and Negative Vacuum Forming Machine has the character of high speed and high efficiency, obviously reduce the labor costs and labor intensity. Changing the molds is more safe, convenient and rapid. The laser knife molds also could be installed.

About Us
About us
About us
 Company Profile
  Shanghai Junjingsai Automatic Machinery Co., Ltd., established in 2005, is a professional manufacturer engaged in High Frequency Welding Machine & Plastic Vacuum Forming Machine with R&D, manufacturing, ma......【More】
FAQ
Q:The questions that most customers concerned, important!!!
A: The questions that most customer...【More】
Q:What is Vacuum Forming?
A: What is Vacuum Forming? V...【More】
Q:What are the Advantages of Vacuum forming?
A: What are the Advantages of Vacuu...【More】
Q:What is High Frequency Welding?
A: What is HF welding? High ...【More】
Q:What are the Advantages of HF welding?
A: Below we have provided so...【More】
Q:What are the important factors for HF Welding?
A:The four most important factors/pro...【More】