... for action 3.Low failure rate. This kind machine is suitable to processing the Large Tents, Rubber Boats, Air Ballon, Seamless sewing ... 50HZRated Power1800WTemperatureup to 700°cWorking speed2-18mRated currnet15AUpper Roller Pressure0.5-4.5kg/cm2Upper roller lift20-30mmUpper roller diameter81.5mmTuyere width20 ... , roller stop, hot air tube sewing stop prevent sealing skip Large Tent Making Machine