An integral part of: 

 The composition of the welding machine main body, welding transformer, adjust the series switch (no), with the rail and on the electrode part on the cantilever electrode arm support pieces under the pressure transmission device and support. 

 Fuselage covered with a solenoid valve, pressure reducing valve, switch, the current "", "off" switch, and three-way valve on the cantilever side surface. 

 2, the body: 

 Body channel and welded by two column, two vertical column and angle iron welded together, The welder lower part of the four floor, four of Φ 18 of the hole in the floor, as the use of fixed welder . Two columns of the fuselage behind the gas chamber as the compressed air to ensure a stable working pressure welder. Inside the welder body angle for the installation of the welding transformer, the left side of the fuselage mounted doors, right behind and above are covered with sheeting. 

 Welder with KD3-160A type point projection welding computer controller can be installed with the welder side. 

 3, with the rail and on the electrode part of the cantilever 

 The rail unit of the cast iron rails fixed to the cantilever bent steel plate, the slider sliding within the guide. The slider above the cylinder, the piston rod connected to the inside surface of the rail open tank, oil oiler join the tank. 

 4, the pressure transmission device: 

 Welding pressure by pneumatic compression workpiece, the pressure transmission device with two cylinder cover, two piston and liner ring composed. 

 Cylinder is divided into three rooms, is located in two piston within the cylinder when compressed air is introduced into the chamber, the piston will produce a working stroke, the compressed air introduced into the chamber under the piston returns to the initial position, the electrode rise. 

 On indoor compressed air to maintain the piston of the piston position adjustment and fixed with two nuts to ensure the necessary working stroke, thus to ensure a smooth adjustment of electrode working stroke size, three-way valve to release compressed air from room after under the piston secondary rise in stroke, this could make the electrodes have a large working stroke. 

 5, under the contact section: 

 Welder electrode fixed in the cast iron support arm under the arm by bolts and rack fastening, can have level adjustment. 

 6, the pressure transmission: 

 Pressure transmission system by the two through the electromagnetic valve, pressure relief valve with pressure gauge, composed of two damper and manual three-way valve. Compressed air to enter from the air intake after the intake valve, a tributary of the compressed air, after a three-way valve to the cylinder chamber, the compressed air in the second slip through the pressure reducing valve and solenoid valve to the cylinder in room or rooms, the gas chamber to reduce the magnitude of pressure changes in the pressure reducing valve and solenoid valve indirectly. 

 Decompression valve used to adjust the electrode pressure, plug in the cylinder cylinder head, thus lubricating oil into the cylinder. 

 The three-way valve for the compressed air through the upper chamber of the pressure transmission device, or released into the atmosphere from the room, so to ensure that the electrode auxiliary trip. 

 Electrode returned to its original position in the electrode pressed weldment and regulate use of the throttle valve to reduce the impact can be rotated to adjust the throttle screw, its exports reached the appropriate size. 

 Electromagnetic valve is used to control Welder pressure transmission work. 

 Enter the compressed air from a compressed air system should not contain water, because it can quickly damage the valves and cylinders.