High Quality ERW Tube Mill line
Production Description
φ219×6.0 high frequency straight seam welded pipe production line is mainly used to produce electric welded steel pipes with φ60~φ219mm and wall thickness of 2.0~6.0mm, and can also produce square and rectangular pipes and special-shaped pipes not exceeding the range of round pipes. API 5L tubes can be produced later by adding necessary equipment. The production line is designed and manufactured on the basis of digesting and absorbing similar equipment at home and abroad, combining with my country’s national conditions, boldly innovating, and listening to users’ opinions extensively. The equipment is economical, reliable and stable.
Production Range
Parameters |
Round pipe |
Square pipe |
Rectangle pipe |
Tube size |
88-219 mm |
90×90 – 170×170 mm |
40×60-200×100mm |
Thickness |
2.0-6.0mm |
≤5.0mm |
≤5.0mm |
Material |
Hot and cold rolled, Galvanized steel, Black steel Low carbon steel, low alloy steel Steel |
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Speed |
10M/min~45M/min |
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Length |
6-12m |
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Max. Coil weight |
15 tons |
Basic Parameter
Low carbon steel and low alloy steel | σB≤520mpa σS≤345mpa | |
Steel Coil | inner diameter | φ650-φ710mm (to be determined) |
Outer diameter | φ1100-φ2000mm | |
Roll weight | ≤15 tons | |
Strip width | 190-690mm | |
Electrical installed capacity | about 1200KVA | |
Compressed air capacity | 2m3/min 4-7Kg/cm2 | |
Coolant capacity | 50 tons/hour |
Note: The installation of production line equipment requires that the height of the workshop (the distance from the top of the crane track to the ground) should be greater than 6 meters, the span is 18 meters, and the length is 110 meters. It is recommended to use one 15T and 5T crane.
Production Process
Uncoiling → straight head, pinch leveling → shearing butt welding → looper → forming, high frequency welding, deburring, on-line zinc replenishment, cooling, sizing, rough straightening → flying saw sizing → inspection and collection → packing →Weighing→Marking→Storage
Equipment composition and main parameters of each machine
Usage |
It is used to accept the strip coil, transport it to the decoiler, and lift the strip coil to the center of the coil head |
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Structure |
It is composed of material rack, traveling mechanism, oil cylinder, guide rail, etc. |
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Capacity |
≤15T |
Hold up |
Hydraulic |
Moving Mode |
Motor with cycloid reducer drive |
Usage |
Used in conjunction with the uncoiler, the steel strip head is drawn from the uncoiler and sent to the pinch leveling machine for leveling |
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Structure |
Press roller device, shovel head device, straight head device |
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Width |
190-690mm |
Diameter |
φ1100-φ2000mm |
Horizontal accumulator
Usage |
It is used to store strip steel, continuously feed the pipe welding machine, and ensure the continuous production of the pipe welding machine. |
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Width |
190-690mm |
Thickness |
2.0-6.0mm |
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Classification |
Horizontal looper
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By clip feeding device, looper body assembly, discharging device and electrical control device |
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Motor |
5.5KWx15 |
Feeding Speed |
Vmax=120 m/min |
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Diameter |
7.0m |
Capacity |
28T |
Main parameter
Motor and main drive system |
The motor adopts DC motor, model power 200Kw, 1000 rpm, two sets of main reducer |
Reducer |
The gear box is driven by spiral bevel gear, the material of bevel gear is 20CrMnTi, carburized and quenched, and the modulus is 14. The box body adopts a sub-box structure, which is convenient for maintenance. |
Horizontal roll stand(Gantry side-out type roll change) |
1. Horizontal roller shaft diameter φ130mm, material 42CrMo, high frequency quenching 2. Bottom diameter of roll: 220mm 3. There is a safety pad under the horizontal roller shaft, which has the function of overload safety insurance, which can protect the transmission and the gear box of the reducer |
Vertical roller stand |
vertical roller shaft diameter φ80mm, material 40Cr, high frequency quenching |
Squeeze roll |
five-roll extrusion |
Scraping welding |
manual rapid lifting, can be adjusted back and forth and up and down, easy to adjust |
The forming and sizing drive shaft |
the Steyr drive shaft |
Production Speed |
15-40m/min. |
Forming section arrangement:
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anti-jump device vertical five-roller feeding:
V HVHVHVHVVV HVHVH |
Welding section arrangement |
guide, five-roll extrusion, scraper, polishing, cooling |
Sizing section arrangement:
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VHVHVHVHVHVH 2 sets of tachometer rollers with Turkish heads |