I have an inverter customer who has always purchased 3M thick-walled heat-shrinkable tubes for mass production projects. Now, due to the impact of the epidemic, 3M's delivery time has become long or even far in the future. Maybe because the customer is a foreign company, R&D has always been favored. Foreign brands of insulating sleeves, but now 3M has to develop domestic suppliers due to the impact of the epidemic on the delivery time.

The chief engineer of the inverter customer, Wang Gong, contacted me and asked me to recommend an insulating sleeve that can replace 3M. Because SUNBOW has successfully used thick-wall heat-shrinkable tubes to help inverter customers benchmark 3M and deliver long-term stable delivery before this, so this time I directly recommended SUNBOW thick-wall heat-shrinkable tubes to Wang Gong. . I emailed the specification and test report of the thick-wall heat shrinkable tube to Gong Wang. After reading the data, Gong Wang was basically OK and agreed to let us send samples. Half a month after sending the sample, Wang Gong contacted me and informed me: The temperature resistance and reliability of the SUNBOW thick-wall heat shrinkable tube have passed the test, and the BOM model has been designated. Order. SUNBOW has been cultivating thick-wall heat-shrinkable tubes for insulating sleeves for more than 12 years. The raw material manufacturers are stable and local procurement, and the cost advantage is significant. In the end, SUNBOW thick-wall heat-shrinkable tubes, at 80% of the unit price of 3M, once again successfully obtained the official approval of inverter customers. Order. ( PVC tube)

SUNBOW thick-walled heat-shrinkable tube is benchmarked against 3M, and has already been used in inverters for insulation protection. 3M's thick-wall heat-shrinkable tube was a favorite before, but when the engineer encountered the SUNBOW thick-wall heat-shrinkable tube, the SUNBOW thick-wall heat-shrinkable tube was specified for the insulation protection of the inverter. ( silicone tube)

Shunbo's thick-wall heat shrinkable tube has the following advantages:

1. The volatile matter will not affect the electrical function, and it is more suitable for some sophisticated designs;

2. Withstand voltage up to 10KV/mm;

3. The insulation coefficient of flammability grade VW-1 is higher.

Therefore, there are not many domestic manufacturers that can produce thick-walled heat-shrinkable tubes. If you want to replace the thick-walled heat-shrinkable tubes of international first-line brands, you may have to look for SUNBOW.

SUNBOW thick-walled heat-shrinkable tube instead of 3M, used in inverter insulation protection has long been a mature case. Professional engineers are welcome to inquire and place an order for trial production.