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Fully Automatic Thickness 3-16mm Square Erw Pipe Mill

China Hebei Tengtian Welded Pipe Equipment Manufacturing Co.,Ltd. certification
China Hebei Tengtian Welded Pipe Equipment Manufacturing Co.,Ltd. certification
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Fully Automatic Thickness 3-16mm Square Erw Pipe Mill

Fully Automatic Thickness 3-16mm Square Erw Pipe Mill
Fully Automatic Thickness 3-16mm Square Erw Pipe Mill Fully Automatic Thickness 3-16mm Square Erw Pipe Mill

Large Image :  Fully Automatic Thickness 3-16mm Square Erw Pipe Mill

Product Details:
Place of Origin: Hebei
Brand Name: Tengtian
Certification: CE, ISO9001, BV
Model Number: F200x200
Payment & Shipping Terms:
Minimum Order Quantity: 1 Set
Price: Negotiate
Packaging Details: Export waterproof and Seaworthy packing.
Delivery Time: 60 work days
Payment Terms: L/C, T/T
Supply Ability: 50 Sets/Year
Detailed Product Description
Steel Strip Width: 270-800mm(±0.2mm) Square Tube: 80x80—200x200mm
Running Speed: 10-30m/min Product Thickness: 3-16mm
Mode Of Production: Full Automatic Warranty: One Year
Welding Type: High Frequency Welding Cutting Saw: Milling Saw
High Light:

erw pipe mill fully automatic


precision industrial tube mills


square pipe erw welding machine

Fully Automatic Thickness 3-16mm Square Erw Pipe Mill 0

Raw material, finished product, process, and user configuration profile


1,Raw Material Conditions:

(1) Hot rolled or cold rolled steel strip (meet GB700-88,GB1591-88)

  • Material: Low carbon steel, low alloy steel

Yield strength of raw material:σs≤345Mpa

Tensile strength of raw material :σb≤560 Mpa

(3) Thickness of strip: square pipe Thickness 3-16mm(GB708-88)

(4) steel strip width:270-800mm(±0.2mm)

(5) steel coil inner diameter:Φ508-Φ760mm

(6) steel coil out diameter:Φ1100-Φ2000mm

(7) max coil weight:16TON


2,Pipe size range:

(1) square tube: 80x80—200x200mm

(2) product thickness:

square and rectangular pipe:3-16mm

  • length:4-12M
  • speed:10-30m/min
  • Equipment Energy Medium Demand:

Power supply: 380V 50Hz 3 PHASE


3,product process

Raw material (strip) -loading car--- uncoiler - Cutting and Welding- feeding - Storage material - passive leveling - forming rolling--high frequency welding -- remove the weld burr -----cooling --sizing-- coarse straightening - length cut - collection


The main equipment introduction


  • loading car

The loading car is used for make the steel coil from loading position to the same time loft oil cylinder,so that the steel coil inner hole is accurately set on the cone of uncoiler, after the uncoiler tension, push back to the original position.

Coil OD: Φ1100~Φ2000 mm

Coil ID: Φ508-Φ760mm

Width: 270~800mm

Running speed: 4 m/min

Running stroke: 3.5m

Transmission motor power: AC4KW(Double chain drive)

Lifting hydraulic cylinder diameter×stroke:Φ200×650 mm

hydraulic system working pressure:8~10 MPa

Up push strength: 16 T(6MPa)

Max coil weight: 16T



  • One cone Hydraulic Uncoiler


Single spindle hydraulic expansion and contraction type reel, the roller is sliding block type, with support, double disc brake, two brakes,

Drum diameter: Φ508 mm -Φ760 mm, uncoiler machine has a horizontal control function, can adjust the overall width direction.

technical parameters


coil out diameter:Φ1200-Φ2000mm

coil width:270-800mm

coil max weight:16Ton

cone move method: hydraulic

cone type: hydraulic expansion


cone move hydraulic cylinder shaft diameter:Φ140/Φ100 mm

Main motor AC7.5KW

Uncoil speed: 6m/min

Unwinding drive chain model 28A-2

Brake type:Pneumatic

Brake model: 2× DBH205

Clutch opening and closing method: pneumatic

Clutch opening and closing cylinder bore Φ125 mm


  • straight head machine


The straight-head device and the shovel are matched with the decoiler to disassemble the steel belt head, and send the steel belt into the straight-head pinch leveling machine. The blade is matched with the straight-head pressure roller to straighten the head of the steel strip and then the steel strip is sent to the pinch roller.

Technical parameters:

width 270~800mm

thickness 3~16mm

Shovel telescopic cylinder:Φ125/Φ90mm

Blade swing cylinder: Φ125/Φ90mm

Blade material: 50Mn

Pressure roller swing cylinder Φ140/Φ100mm

Roller drive form

Hydraulic motor

Hydraulic motor model 1QJM32-32Z3

Straight roller cylinder Φ100/Φ70mm

Straight head device swing arm: Adopt welded box structure

Shovel device: Use vertical blade


  • pinch leveling machine




Straight-head device, pressure roller and shovel, cooperate with the decoiler to disassemble the steel strip head, and send the steel strip to the pinch leveling machine. The pinch roller is hydraulically pressed to clamp the steel belt, and the main motor is rotated to send the steel belt to the pinch roller. After the steel belt enters the pinch leveler, the leveling roller is pressed down to a suitable position to level the steel strip Flat, and send the steel strip to the shearing butt welding machine, and cooperate with the shearing butt welding machine to complete the shearing butt welding.



Technical parameters :


width 270~800mm

thickness 3~16mm

pinch motor AC30KW(Frequency)

positive pinch leveling speed ~7m/min

Pinch roller form and reduction :Two-roller type, hydraulic pressure

Pinch roller press down the cylinder Φ160/Φ110mm

Pinch roller diameter×length Φ280×850mm

Pinch roller material 42CrMo

Transmission form of pinch roller and leveling roller:Pinch up and down rollers are fully active, and leveling rollers are active underneath

Passive pinch leveling speed ≤30m/min

Leveling roll form and reduction

Upper two-lower three-roller type, hydraulic pressure

Leveling roller press down cylinder Φ200/Φ160mm

Diameter of Leveling Roller×Length Φ200×850mm

Leveling roller material 42CrMo

Roll quenching hardness and depth HRC52~58, depth:3~5mm

Vertical roll diameter×height Φ200×300mm

Vertical roller structure: I-shaped double vertical roller

Vertical roller material 42CrMo

Roll quenching hardness and depth HRC52~58,depth:3~5mm

Vertical roller width adjustment motor 2 ×AC2.2KW

Clutch opening and closing method : pneumatic

Clutch cylinder bore: Φ125mm


  • automatic shear and welder:



Used to cut off the irregular part of the tape head and tail, and align the tape tail of the previous coil with the tape head of the next coil, and weld them together to continuously feed the looper.

Structural form: shear welding bed, pinch feeding device, double centering device, double shearing shearing system, shearing plate system, welding bottom plate driving system, etc.


Technical parameters :


steel strip thickness:3-16mm

steel strip width:270-800mm

steel strip strength:


cutting type: hydraulic

Compress type:hydraulic

welding type : by motor AC0.55KW

hydraulic working pressure:10Mpa

welding speed: 0.4~0.6 m/min

Cutting method: Guillotine hydraulic shears

Shear structure form : Double Scissor Blade

Cutting edge material: 6CrW2Si

Butt welding clamping cylinder:


Pinch roller materia:l 42CrMo

Pinch form: Lower roller active

Pinch down cylinder Ф125/Ф90mm

pinch speed: ~5m/min

pinch motor: AC15kW

Clutch opening and closing method : pneumatic

Clutch cylinder bore :Φ125mm




  • horizontal accumulator


This machine is between shear welder and host (forming sizing mill) ,use for after a roll of strip steel are used up, before the next roll strip since prepared from uncoiling, shearing and butt welding time to ensure that the host (forming sizing mill) continuous production and store enough strip steel.

This unit is main include in press& carry material device, accumulator assemble, carry off material unit, electric control unit.

  • press & carry material device:It is main include frame, electric motor, brake unit, circling direction transfer power axle of the reduce velocity, press & carry roll, pressure air system of guide roll, inspected velocity unit; it can supply the strip steel to accumulator and the mean times it will transfer the carry velocity information to electric control system, when we demand stop carry the material to this unit, it will stop roll to the electric motor and press& carry material roll by the break, and also could adjust the velocity to carry electric motor and the unit carry material velocity.
  1. Accumulator frame assemble: include the electric motor, frame , inner circle roll, out circle roll and pressure roll. It can be used to storage the strip steel material from press& carry unit and it could be draw from the center send-off material roll.
  2. Send-off material device: include frame, guide direction rolls, guide out roll of high or lower place. It can carry the strip steel to shape system and send the carry out material velocity information to electric control device.



accumulator type: External feed and internal delivery

steel coil thickness:3-16mm;width:270-800mm

carry material going velocity:Vmax=80m/min

feeding motor power:AC 132kw

storage motor: AC 17.5KWx17SET

Storage area:5m2



  • forming and sizing mill:

Forming 12 stand, sizing 4 stand , turkey head 2 stand


  • computer milling saw



Cut the running steel tube into the following runout table.

When the continuous working rolling mill delivers the steel pipe to the flying saw, the saw car tracks and synchronizes with the pipe speed, the clamp block clamps, and the two saw cutting systems installed on the rotary table with the saw blade rotation, which makes radial feed under the drive of the feed ac servo motor.At this time, the rotary table is also rotating, and the saw cutting system makes compound movement between the rotary table and its own feed, and cuts the steel pipe along the section shape track of the cut piece.Then the systems relax back into place and wait for the next working cycle.The cutting feed use polar coordinates type.

equipment composition:

Body system, sawing machine, driving system, rotary disk system, feed system, jig, roller device, speed measurement device, hydraulic system, control system


basic parameters:

square pipe size:80x80--200x200mm

steel strip thickness:3~16mm

Steel strip material:carbon steel,Pre-galvanized hot rolled strip, cold rolled strip

Cut length:4-12m

Cut accuracy:≤2mm

Cutting type:double saw blade, rotate milling cut

Tracking speed:same as tube mil l(10-30m/min )

Equipment function:automatic,manual,It has the function of cutting short length

The short length bigger than 6m.

Control type: Siemens AC servo location

Feeding direction:according to customer require


machine parameters:

Cutting motor:servo AC14kw

Feeding motor:servo motor AC3.5kw one set

Drive motor: DC45KW

Clamp type:hydraulic

The saw bed,sawing machine,rotary disk system and cutting system with annealing treatment.

Guide line quantity 4,Taiwan shangyin brand or Nanjing



electric parameters:

touch screen  HMI 1 Siemens
motion controller PLC 1 Siemens
Bearings     NSK/SKF
Main electrical components     Siemens
hydraulic valve     Beijing Huade
oil pump     Shanghai
oil cylinder     Domestic (Fushun)


  • Automatic packing machine


Function description:

Counting, palletizing:After the number of steel pipes reaches the specified number, the entire layer of steel pipes will be sent to the material frame by the layer sucker mechanism, according to the set package type, after the stacking is completed, the entire package of steel pipes will be transported to the packing rack.

Strapping:The package transfer roller table is started, and the whole package of steel pipes are moved out of the palletizing station and transferred to the strapping station; automatic packaging and welding are completed, and the water is controlled at the same time.

Traverse:The side rollers are opened, and the bundled steel pipes are removed. Reach the weight measurement position.

cycle:After the whole package of steel pipes are removed, the lifting platform returns to the receiving position and waits for the stacking of the next package of steel pipes. The stacking connection between each package of steel pipes realizes seamless docking to ensure the continuity of work.

The electrical control adopts PLC program control, touch screen (PLC adopts German Siemens), realizes man-machine dialogue, can freely switch between manual and automatic, and the electrical components use Delixi brand. In the program, you only need to input the number of steel pipes per layer, the number of layers of each bundle of steel pipes and the necessary parameters. After adjustment, the baler will automatically stack the required complete package of steel pipes.


Note: After the device is automatically reset to zero every time it is started, it performs a self-check. After the device is in a normal state, it can be officially operated.


Technical parameters of automatic strapping machine

Deduction method: no deduction, four deduction positive and negative deduction

Buckle strength: up to 70% of the base material of the strapping tape

Transmission mode: feeding and rewinding frequency conversion brake motor

Tension range: 15KN adjustable

Threading speed: 90m/min

Strapping speed: 23 seconds/cycle (related to the size of the bag)

voltage: 380V/50HZ

control voltage :DC24V

Power consumption : uncoil1.5KW ; head1.5KW


The main components:

No. Name Quantity Notes
1 Rotary feeding 5sets Motor drive 7.5KW
2 Step feeding 5sets Motor drive7.5KW
3 Counting single push layer push system 5sets

Motor drive4.5KW

servo motor

4 Lifting palletizing system 5sets 2set motor drive 7.5kw servo
5 Align the ends 1set Cylinder model 100x500
6 Transfer trolley 5sets motor 2.2kw
7 Automatic strapping 1set  
8 Roller conveyor 8sets 2.2kw motor
9 Storage bag 4sets 4KW Motor
10 Electric control system 1set plc taida PLC
11 Hydraulic station 1set 7.5kw motor



10)Rollers material: Cr18-20



   11) 1200kw solid welder


Contact Details
Hebei Tengtian Welded Pipe Equipment Manufacturing Co.,Ltd.

Contact Person: Mr. Yan

Fax: 86-0311-8302-5332

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