• Hot plate welding machine for membrane filter plate

Hot plate welding machine for membrane filter cloth/plate

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1.Complete sheet film welding cycle less than 50s.


Hot Plate welding means two metal plates are used to heat the weld surface of the two plastic workpieces to be fused, to melt the surface of plastic parts; Then quickly remove the hot metal plate and pressurize the upper and lower plastic parts so that the fusion surface is fused, solidified and integrated.


Hot Plate Welding Process

Step One:Part halves are placed into and securely gripped by precision holding fixtures which insure adequate support and accurate alignment of the part halves throughout the hot plate welding process.

Step Two:To heat the part joint area, a thermally heated platen is placed between the part halves.  The holding fixtures close to compress and melt the part halves to be welded against the platen, displacing material at the joint area only

Step Three:Compression and material displacement continue until precision hard-stops built into the tooling are met.Thermal heat continues to conduct into the material even though compression and displacement have stopped.

Step Four:After the joint area reaches molten temperature, the holding fixtures open and the heat platen is withdrawn.

Step Five:The holding fixtures then close, forcing the two parts together until hard-stops on the holding fixtures come into contact with one another.

Step Six:When cooling is complete, the gripping mechanism in one of the holding fixtures releases the part, the holding fixtures open and the finished part may be removed.



1. Can be applied to different sizes of the workpiece, no area restrictions;

2. Any welding surface any be applied. No special requirements;

3. Welding surface can allow plastic balance compensation, welding strength is guaranteed;

4. In accordance with the needs of various materials, adjustable welding procedures;

5. The fixture is fixed to the corresponding upper and lower platen position;

6. In the upper and lower pressure plate under the action of the positioning system, the hot plate welding can be in the high speed with no impact to the plastic pieces;

7. Can be customized according to demand for vertical or parallel hot plate device;

8. The hot heating mold, the upper fixture and the lower fixture are designed into the separate assembly components, easy to install and handling;

9. With horizontal hot plate design, it can be rotated for 90° to clean;

10. Equipment stability is good, to ensure consistent welding effect and the workpiece after processing a high degree of precision;

11. Use infrared protection to ensure production safety.



Power 3KW 5KW 10KW
Voltage 380V 3 PHASES 50/60HZ 380V 3 PHASES 50/60HZ 380V 3 PHASES 50/60HZ
Welding Area 200*400MM 400*600MM 800*1000MM
Temperature of Heat Welding 0-600℃ 0-600℃ 0-600℃
Time of Welding 0.1-60s 0.1-60s 0.1-60s
Air Pressure 0.3-1MPa 0.3-1MPa 0.3-1MPa
Size 1700*1170*1300MM 1900*1300*1450MM 2700*1650*1600MM
Weight 500KG 800KG 1000KG

Welding workpiece size: according to the welding of plastic pieces

Welding surface: no special requirements


1. Can your machine’s voltage suitable in our country?

Absolutely no problem. We can make the Hot Plate Welding Machine not only as 220V 50Hz single phase,  but also 110V/120V/ 60Hz single phase or any other voltage as required. So don’t worry about it.

2. How to ship the machines?

Multi choices. LCL and FCL by sea; By Express (DHL,TNT, Fedex etc); By air.

3. How long can I get the goods?

We usually delivery in 7-15 working days, we will inform you shipping time based on your seaport.


4. How long is the guarantee?

We promise guarantee as one year for non-human damage factor.

5. What should do if I meet some toubles when using?

You can solve them by reading the English manual book we have supplied you. Of courese, we can also take a video of showing how to solve the problems or dispatch our workers to your company.


6. How can I pay the money?

Common way: T/T(Telegraphic Transfer ) 30% as prepayment by T/T, after seen the copy of the B/L sent by fax, the balance of 70% should be effected . ( Western Union , L/C ,  etc. )

Multiple ways provided to pay the price of the hot plate welding machine.


7. What is your  MOQ?

MOQ: 1 set.


8. How can I contact with you?

You can send inquiry to me. Besides, you can also contact me via email, WhatsApp, Skype, Wechat, QQ and so on.




Enquiry information include product size,drawing and requirements.