パイプ製造ライン Bazhou Wanxin Industrial and Trading KK-5-50（2021年製）

Bazhou Wanxin Industrial and Trading KK-5-50

Tube manufacturing line
Manufacturer: Bazhou Wanxin Industrial and Trading
Tube manufacturing line consisting of:
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Double-station unwinding device
Function: Unwinds the coil passively
Design: 2-station design with 180-degree rotation, manual expansion
Advantages: Fast loading, simple and convenient operation
Hydraulic shear and butt welding machine
Function: Cuts off the front and rear ends, centers the strip, and welds the strip back together
Design: Manual hydraulic shear with cantilever, front and rear pressure rollers, front and rear centering rollers, welding device
Cutting method: hydraulic shear
Press material method: double-cylinder press
Welding method: manual welding
Strip storage device
Function: To ensure continuous production of the welded tube, a storage unit must be installed after the shear and butt welding platform so that the storage unit can continuously feed the strips while the strip steel material is prepared for stacking, unwinding, butt cutting, and welding.
Design: Frame type, with moving and fixed frames (including feeding device)
Feeding speed: max. 120 m/min
Storage speed: max. 200 m/min
Length of stored strips: 200 - 400 m
Pinch roller motor: AC 11 kW
Forming and sizing machine
Working height: +850 mm
Power: AC/DC motor: 160 kW, 1000 - 2000 rpm
Reducer: Gear hardening
Arrangement: Passive five-roll straightening machine, vertical rolls for feeding material, forming through 7 horizontal roll stands and 8 vertical roll stands, guiding, pressing, deburring, cooling, and sizing through 6 horizontal roll stands and 5 vertical roll stands, 1 round sizing stand
Round sizing stand: 1 set of smoothing device, two sides with 8 rolls each, 4 rolls per side. 30 mm, 40cr, quenching, tempering, and hardening
Horizontal roll shaft: 60 mm, bearing at position 55, made of material 40Cr
Heat treatment of horizontal roll: surface hardening, HRC 50-55
Bearing guide: forged steel 45#
Vertical roll shaft: 40 mm, material 40Cr, quenched, tempered, and hardened
Vertical and horizontal rolls - Design: Portal design, opening width: 120 mm, clamping of horizontal roll stand: adjustment via worm gear
Material of horizontal and vertical roll stands: welded (aging annealing)
Gearbox: Gear: Spiral bevel gear
Shaft of pinch roll: 50 mm, 2 rolls for pinching, adjusted via a manual screw rod
Guide shaft: 40 mm
Deburring knife: 2 pcs., one for working and one as a spare
Cooling tank
Cold cut-off saw
Function: The cold cut-off saw is one of the most important machines in the ERW tube line. It can cut the tubes to the preset length during high-speed production.
Type: KK-5-50
Tube diameter: Round tubes 16-63.5 mm and corresponding square and rectangular tubes
Length cut: any length between 1 - 6 m
Material thickness: 0.6-2.5 mm
Drive motor: 11 kW servo Yaskawa
Feeding motor: 2.9 kW serco Yaskawa
Saw motor: 11 kW, AC motor with frequency converter
Feeding method: Servo multi-stage speed feed
Speed adjustment: max. 110 m/min
Clamping force: pneumatic
Drag chain
Saw blade: 400 mm
Saw gearbox model: KK-80
Saw stroke (device length): 3 m
Device dimensions: 4500 x 1500 x 1300 mm
Conveyor track, table, and packaging machine
Function: The formed tubes are automatically removed from the roll.

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