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used ERW tube mill
used OD235-OD400 ERW Tubemill
Model No.: 231, it is written on March 1st, 2022
- product description
- Technical Parameters
Φ235-Φ400mm ERW Tubemill
machine was made in 2004, is still on line at present
1. Technical performance
1.1 coil thickness: 5-12mm
coil width: 600-1250 mm
material: API X60
coil OD: MaxΦ 2000 mm
coil ID:Φ610-Φ760 mm
coil weight: max20t
1.2 finished products
tube OD:Φ235-Φ400mm
wall thickness: 5-12mm
tube length: 8-30m
tube Weight: max2713 kg
1.3 production mode
Forming method: row roll forming method.
Welding method: high frequency welding, medium frequency annealing (reserved).
1.4 unit operating speed: 10-30m / min
1.5 annual production: 120,000 tons
2. Unit process flow
Raw steel coil - uncoiling - head removal - leveling - feeding looper - centering - shear butt welding - centering - pinch roller - spiral horizontal looper - pinch conveyor - centering - centering - feeding - forming - high frequency welding - cooling - ultrasonic flaw detection (reserved) - air cooling - anti torsion device - medium frequency annealing (reserved) - water cooling (reserved) --Sizing - cutting - tube delivery - trimming area - material storage area - flat head chamfering - hydraulic test - post hydraulic inspection - finished product inspection - weighing, length measurement, marking - Storage
3. Introduction to main equipment
3.1 uncoiler
Technical parameters: coil thickness: 5-12mm
coil width: 600-1250mm
material: API X60
coil OD: Max Φ 2000mm
coil ID: Φ610-Φ760mm
Steel coil weight: max20t
-The double cone hydraulic alignment is adopted, the feeding trolley is used for coil preparation, the feeding trolley is raised and lowered by hydraulic pressure, and the cone head is driven by motor and reducer to open the coil actively.
-The transmission motor is 15kw, the uncoiling speed is 15m / min, and the trolley is driven by the motor.
3.2 head remover
The hydraulic swing blade head is adopted, and the upper pressing roller is used to uncoil actively.
3.3 pinch leveler
Technical parameters: coil thickness: 5-12mm
coil width: 600-1250mm
material: X60
-Leveling roll 5 (upper 2 / lower 3) is active and pressed down hydraulically.
-DC motor for transmission is 55kW, and the running speed is 55m / min.
3.4 shear welding machine
Technical parameters: coil thickness: 5-12mm
coil width: 600-1250mm
material: X60
-The hydraulic up cutting shear cuts the plate head and plate tail, and is provided with a plate head and plate tail collection groove.
-Butt weld the plate head and plate tail. Hydraulic lifting butt welding table.
-Butt welding method: CO2 automatic welding. Welding speed: 0.5-1.5m/min
3.5 pinch conveyor
Technical parameters: coil thickness: 5-12mm
coil width: 600-1250mm
speed: Max 55m / min
-Delivery roll diameterΦ280mm motor dc160kwHydraulic press down.
-The machine has its own protection function and can operate normally when the plate thickness changes suddenly.
3.6 spiral horizontal looper
Technical parameters: coil thickness: 5-12mm
coil width: 600-1250mm
material: X60
Drive motor DC55kw
3.7 pinch roll
Technical parameters: coil thickness: 5-12m
coil width: 600-1250mm
speed: Max 30m / mm
Delivery roll diameterΦ280mm, motor DC90kw, hydraulic pressing down.
3.8 feeder
Technical parameters: coil thickness: 5-12mm
coil width: 600-1250mm
speed: max30m / min
-Clamping before break down
-Feed roller diameterΦ280m, motor dc45kw, hydraulic press down.
3.9 forming machine
Technical parameters: steel pipe specification:Φ235-Φ400mm
Steel pipe wall thickness: 5-12mm
Steel pipe material: X60
-The adjustable roll arrangement is adopted for forming, and the roll arrangement is passive.
-3 fin pass machine, pressing mode: electric.
-The 3 fin pass machine are all driven separately, and the motor is DC45KW × 3.
horizontal shaft diameter: 220mm, vertical shaft diameter:
-Newly added molding machine entrance rent molding bending power rack, equipment weight 20ton
Add 1 forming bending frame:
The cover can be opened quickly
The upper roll is pressed down electrically, and the height of the lower roll is adjustable:
Gear box transmission is adopted (transmission type of existing sizing machine)
Separate drive, DC motor.
-The equipment weight of arc vertical roller is 5ton
1 set of arc vertical roller: placed behind the new booster bending frame.
Straight top side pressing screw rod (non cantilever type)
Manual adjustment of vertical roll.
3.10 welding device
Technical parameters: steel pipe specification:Φ235-Φ400 mm
Steel plate wall thickness: 5-12mm
Welding method: high frequency welding
Welding speed: 10-30m / min
-The 4 roller extrusion welding device has the advantages of reasonable mechanism setting, convenient adjustment and easy disassembly.
-High frequency welding machine, 800KW.
-Remove internal and external burrs.
3.11 sizing machine
Technical parameters: steel pipe specification:Φ235-Φ400mm
Steel plate wall thickness: 5-12mm
Steel pipe material: X60
-4 roll sizing, 3 in total
-Each drive is driven separately, and the motor is DC90KW×3。
-With Turkish head.
3.12 hobbing machine
Technical parameters: tube OD: Φ235-Φ400mm
coil thickness: 5-12mm
material: X60
-Pneumatic operation mode is adopted
-Cutter rotating motor AC75KW
-Roll cutting flying saw, equipment weight 1ton
Redesign the hobbing head to ensure Φ235-Φ400mm Adjustment range
3.13 hydraulic system
Technical parameters: system working pressure: 12MPa, 20MPa
-The hydraulic station is composed of pump station, valve station and pipeline.
-Rexroth series is selected as the valve.
3.15 electric control system
-The electric control system consists of DC control system, AC control system and PLC control system.
-The components of the system are produced by Chinese famous brand manufacturers or joint venture manufacturers.
4. Installed capacity of the unit: (total motor power DC900KW + AC250KW + high frequency welding machine 800KVA) total:
1950KW
5. Equipment name (scope of supply)
No. | name | QTY | weight (T) | remarks |
1 | Roll up trolley | 1 | 3 | |
2 | Uncoiler | 1 | 9 | |
3 | Head remover | 1 | 5 | |
4 | Lead leveler | 1 | 14 | |
5 | Shear butt welding machine | 1 | 10 | exclude automatic welding machine |
6 | Centering device | 4 | 3×4 | |
7 | Pinch roll | 1 | 8 | |
8 | Spiral horizontal accumulator | 1 | 125 | |
9 | Pinch conveyor | 1 | 8 | |
10 | Feeder | 1 | 12 | |
11 | Forming machine | 1 | 170 | |
12 | Welding device | 1 | 24 | exclude HF welding machine |
13 | Anti torsion device | 1 | 20 | |
14 | Water cooling device | 1 | 6 | |
15 | Air cooling device | 1 | ||
16 | Φ165, 185, 250, 360, 404mm roll | 1 | 20 | |
17 | Φ235mm roll | 2 | 20 | |
18 | Sizing machine(3 stands) | 1 | 70 | |
19 | Cutting machine | 1 | 19 | |
20 | Hydraulic system | 1 | 8 | |
21 | Electric control system | 1 | 3 |
※Provide:
total weight: 550 tons
Mechanical manufacturing blueprint 2 sets
Installation layout
Roll drawing 2 sets
Inner roll frame drawing 2 sets
If you want to quote or further information on this product, please fill out the form below.
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