The control of this series of welding machine adopts PID automatic thermostatic control with high control accuracy and low temperature fluctuation; Speed control adopts PWM automatic voltage and speed regulation circuit, driven by DC servo motor, with great output torque and the operating is stable. It can maintain a constant speed on the condition of creeping, vertical creeping and variable road load. Also this series of welding machine is stable in performance despite of external temperature and voltage variation. 
Jointer series geomembrane welding machine is our new developed products, which can weld geomembrane of various thickness and are applicable for welding of all thermal-fused material such as LDPE, PVC, HDPE, EVA, PP. 
This series of welding machine is excellent in performance and easy for operating, with high welding speed and good work quality. It is extensively used in engineering projects such as expressways, tunnels, reservoirs, waterproof of construction and so on 

Voltage: 220V 
Frequency: 50/60Hz 
Power: 1800W 
Welding speed: 0.5~5m/min 
The temperature of Heating up: 0~450o C 
The thickness of welding material: 1.0mm~3.0mm 
Welding width: 15mm× 2 Interior Cavity: 15mm 
Seam strength≥ 85% base material 
Overlap width: 12cm 
Weight: 13kg 
Insulation class: Class II