Flame Treatment gun length is 250mm ,width is 30mm .use for PP Plastic, HDPE , BOttles, PET TUBES ,metal surface. 1. The length of the gun is 250mm, the actual length of the fire is 200. The price of EXW is 300  dollars. 2. The length of the gun is 300mm, the actual length of the fire is 250mm. The price of EXW is 350 dollars. 3. The length of the gun is 200mm, the actual length of the fire is 150mm. The price of EXW is 250 dollars. Working principle and precautions: 1. The fire-breathing holes are 5 rows: the middle three rows are the flame main holes, and the two sides are the ignition sub-holes to prevent the compressed air pressure from being excessively extinguished, and the multi-layer design between the holes and the holes to meet the requirements of the customer flame length. 2. The gas source of the flame gun is compressed air and gas mixed gas. To improve the pressure of the gas, it is recommended that the gas supply valve be a medium pressure valve. 3. To reduce the noise during the working of the flame head, a silencer should be installed. 4. For safety reasons, it is recommended to use a shrink metal joint for the gas pipe joint, and a special 205 flame gun control valve for gas and air conditioning special products. 5, the flame gun has been installed with a seal to adjust the length of the flame, M5 stainless steel screws on the body of the flame gun can lock the seal. 6. Do not adjust the air and gas valves too much when the flame gun is ignited. For safety reasons, it is recommended to use a hand-held electronic igniter or an automatic ignition device. 7. When adjusting the flame, observe that the color of the flame is blue, and the length and color of the flame can be controlled by adjusting the gas and air valves. 8, if the gas is not pure enough, compressed air will cause the flame to have a red dot. Gas or compressed air should be replaced and filtered. Operation method editing There are two types of electronic ignition and manual ignition. Repair and maintenance editor When the flame gun body is too dirty, remove the air source and remove it with a cleaning agent and a stainless steel cloth. If the flame hole is partially blocked, you can tap the flame head when there is gas (be careful not to knock it hard) or turn off the air source to remove the hole through the gas. If the flame gun fire effect is not used, it can be returned to the factory for repair. G3/8 teeth M5 or M6 stainless steel TAM-F250F 320mmX35mmX40mm Horizontal 0-250mm 10mm 5 G3/8 teeth M5 or M6 stainless steel TAM-F300A 355mmX25mmX40mm Horizontal 0-300mm 10mm 5