Within 15 years hard working, Wuxi Weihua Machinery has finished the whole PU sandwich panel production line by ourselves and got several patents, especially the foaming machine and flat PU sheet are superior of the field. Weihua has not only the cold roll forming technology, but also foaming technology and rock wool whole line technology. The key technology of foaming system proceeds that of European manufacturer, and the mirror flat sandwich panel is superior in the field.

The whole PU&Rock Wool sandwich panel production line includes：uncoiler, steel panel lifting device, filming and cutting device, ribbing device, main forming machine, steel panel connecting device, steel panel pre-heat equipment, rock wool system,high pressure foaming machine, side seal device, double-belt conveyor machine, heating device of double-belt conveyor, automatic tracking band-saw, output roller path, panel cooling system, automatic stacker, wrapping machine and so on.

1. In 2012, Weihua supplied whole continuous PU soft substrate sandwich panel production line to Nanjing Hongbaoli Co., Ltd.

2. In 2014, Weihua supplied whole continuous soft substrate sandwich panel production line to CSIC Luoyang 725 Ship Material Research Institute, and we developed new pentane foaming machine.

3. In 2017, Weihua supplied whole continuous rock wool sandwich panel production line to METECNO Group China.

4. In 2005, WEIHUA supplied domestic first PU sandwich panel continuous production line to Beijing ASR (Ya Shi Co., Ltd), filled the domestic gap of this technology and broke the tradition of domestic line dependence on import.

5. In 2006, WEIHUA supplied roll forming machine parts of PU production line to Beijing DUOWEI construction panel co., Ltd.

6. In 2007, WEIHUA supplied whole PU sandwich panel continuous production line to Beijing Huadu Maohua Polyurethane products Co., Ltd.

7. In 2008, WEIHUA supplied whole PU sandwich panel continuous production line and door panel line to Henan Xuji SUPER LIFT CO.

8. In 2009, WEIHUA supplied whole PU sandwich panel continuous production line and ROCK WOOL production line to Zhanhong (FuJian) Panel development Co., Ltd.

9. In 2011, WEIHUA supplied whole PU sandwich panel continuous production line and ROCK WOOL production line to Vietnam EVERRICH.

10. In 2011, WEIHUA supplied whole PU sandwich panel continuous production line to Changzhou Jingxue Refrigeration Equipment Co.,Ltd.

11. In 2011, WEIHUA supplied whole PU sandwich panel continuous production line to Henan Bode Jiahui Building Products Co.,Ltd.

12. In 2012, Weihua supplied whole PU sandwich panel production line to Peru customer.

13. In 2012, Weihua supplied whole PU sandwich panel and soft substrate sandwich panel production line to Shandong Lecron.

14. In 2013,Weihua supplied whole PU sandwich panel production line to Shengquan Group in Shandong.

15. In 2013, Weihua supplied whole PU and rock wool sandwich panel production line to Langfang Zhongjie New Material Construction Panel Co.,Ltd, and we developed four tongue and groove joints box plates.

16. In 2015, Weihua supplied whole continuous PU sandwich panel production line to Sichuan Debeier Co.,Ltd.

17. In 2016, Weihua supplied whole continuous PU sandwich panel production line to Changzhou Yuexian Refrigeration equipment Co.,Ltd.

18. In 2016, Weihua supplied whole continuous PU sandwich panel production line to Qatar.

19. In 2016, Weihua supplied whole continuous PU sandwich panel and rock wool production line and soft surface production line to B.R.W New Materials Co., Ltd.

20. In 2016, Weihua supplied whole continuous PU sandwich panel production line to Dachang Co.,Ltd.

21. In 2017,the wall panels and roof panels of Wanda ski resort are supplied by our customers, Jingxue Refrigeration Co., Ltd and Xi'an Zhongjie Co., Ltd.