Steel Pipe Making Machine

SP60 ERW tube mill machine

Time：2020-05-29 14:16

SP60(21-76mm) erw tube mill machine is a series of tube machines that builds longitudinal weld seam pipe with steel strips of certain width. It starts by uncoil and flatten the slit steel coils into steel strips. The flattened steel strips will be inserted into the forming machine and the rollers in the machine will bend the strip to a round pipe shape. The round erw tube mill machine. then be sent into the weld box where the pipe is welded by a high frequency or solid state welder. The tube mill machine be formed to expected shape (round/ square/ rectangle etc) or size in a sizing machine. Finally the pipe will be cut to length and bundled.

1. Parameters of erw tube mill

Model	Unit	SP50L	SP60	SP60L	SP76
Diameter of Welded Tubes	mm	19-76	21-76	21-89	25-89
Size of Square Tube (Max.)	mm	60x60	60x60	70x70	70x70
Size of Rectangle Tube (Max.)	mm	40x80	40x60	60x80	60x80
Wall Thickness of Round Tube	mm	0.8-2.5	1.0-3.2	1.2-3.2	1.5-4.0
Wall Thickness of Square Tube	mm	0.8-2.0	1.0-2.5	1.2-2.5	1.5-3.5
Wall Thickness of Rectangle Tube	mm	0.8-2.0	1.0-2.5	1.2-2.5	1.5-3.5
Speed of Tube Welding	m/min	20-90	20-80	20-60	20-70
Power of Major Motor	KW	160	185	185	200
High Frequency Power	KW	200	200	200	300

2. Process flow of erw tube mill machine

pipe making machine, pipe welding machine

Step 1: Uncoiler Function: support rolled plate and strip tension for tube mill machine, by the frame, main shaft, increases of drum, brake. There are 3 types: pneumatic, hydraulic and manual.
Step 2: Shear & Butt-welding Function: Shear the end of each strip coil, then welding them together, so that erw tube mill can be continue production. 2 Types: Automatic & Manual
Step 3: Strip Accumulator Function: storage strip to keep continue production. 2 Types: Horizontal / Vertical Advantage: Horizontal type can be larger storage. Vertical type is much cheap and small space occupied.
Step 4: Forming Section Function: forming the tube from strip Advantage: >Advanced forming technical >One-stage molding platform >Reliable quality gear box >Siemens Beide motor
Step 5: High Frequency Welding Function: Welding the pipe , different thickness & diameter, the power of the tube mill welder Our advantage: We choose the China best welder: Sanyi brand.
Step 6: Sizing Section Function: sizing the tube to precise size Advantage: >Advanced sizing technical >One-stage molding platform >Reliable quality gear box and Siemens Beide motor >High precision, low error of the pipe size
Step 7: Flying saw / Cold Saw Function: cutting the tube mill line tube to right length. Fly saw: easy to operation, low investment. Cold saw: no noise, no burr cutting precision and cross section.
Step 8: Run Out Table. Function: run out the pipe, packing the pipe for tube mill machine Type: Automatic or manual

3. Applications of erw tube mill machine

1. Oil & Gas Pipes	7. Wire and Cable Protection Pipe
2. Heating Pipe	8. Structural Support Steel Pipe
3. Low-pressure Process Pipeline	9. Industrial Steel Pipes
4. Low Pressure Fire Fighting Pipeline	10. Decoration Pipe
5. Sewage Pipes	11. Water Pipe
6. Steel Scaffolding Pipe	12. Building pipe