12 meters Pipe making line--- tandem press brake for pipe forming
The customers use it for big diameter and thicker pipe, adopt
special circle tooling to bend the steel plate, after bending, it
can form a pipe or tube, necessary for pipe making. These machines
are widly used in petroleum chemical equipment pipe ,gas reserve
facilities maintenance pipe; municipal engineering pipe; electrical
instrumentation and automation engineering tube; fire protection
engineering tube; anti-corrosion insulation engineering pipe;
environmental engineering tube; pressure vessel pipe, pipeline
maintenance tube; cleaning service pipe; petroleum chemical
Press brake machine features :
Norminal force: 400 ton
Table length: 7000mm
Two Housing distance: 5600mm
Throat Depth: 720mm/ or according to customer requirment
Ram Stroke: 320mm
Max Open Height: 830 mm
Main Motor power: 30 Kw
1. Holland Brand Netherland Brand: Delem DA 52 2+1 axis: Y1,Y2+
worktable crowning system
2. Netherland Brand: Delem DA52 3+1 axis: Y1,Y2, X + worktable
3. Nether land Brand: Delem DA65W 4+1 axis: Y1,Y2,X,R+ worktable
Volume of oil tank: 2x1400L
Machine Weight: 46000 kgs
Machine Dimensions: L 7150 mm
W 3560 mm
H 5900 mm
1. We use Electro-hydraulic servo system, closed loop control
system controls precision
2. The unique patented technology:bilateral deflection compensation
of the large press brake
3. Open width adjustable inserts die to meet a variety of
4. A variety of auxiliary institutions could meet user's
requirements and make the process more convenient and efficient
5. Y1,Y2 Axis------Two raster displays installed at both sides of
ram to control cylinders.
Machine Main Performance :
1 .The frame of machine is composed of tank, worktable, left and
right housings and ram. So it has high strength and good rigidity.
Also it takes vibration to eliminate stress.
2. Synchronization working principal of both machines:Adopting
electric-hydraulic proportional valve to ensure the synchronization
of both machines. The proportional valve is made by BOSCH company
with very good performance such as small friction between mechanic
action pairs, fine electronic amplifier and electric magnet with
high controlling force and continuous action. There are two raster
displayers on both sides of machine to inspect the position of ram
continuously and feed back the signal to control system, then the
control system will control electric-hydraulic valve to make two
cylinders synchronization on one machine. Because the raster
displayers are installed to “C” plates, not on housing plates
directly, the deflection of ram and frame when working will not
effect its measuring and controlling precision. When two machines
working together, the differential potentiometer installed between
two machines will transfer the mechanic synchronizing signal into
electronic one and feed back to synchronization plate and control
system. The signal will be enlarged by BOSCH amplifier to control
the synchronization of both machines by controlling
electric-hydraulic proportional valve. So the synchronization of
two machines is achieved with high precision.
3 Through computer,the operator could communicate with machine. The
computer has several service language, calculate and adjust the
bending force automatically. Also it could calculate and control
the dead point, speed changing point.The strokes (Y1, Y2) of ram
could make a small tilt to meet the special requirement of user.
4. Equipped with good guiding system, position measuring system and
hydraulic balance system to meet the requirements of full length
job and eccentric job.
5. Worktable compensation unit is adopted to make up for deflection
of machine when working to make sure the precision of work piece.
6 .The surface of cylinder has good wearing and heat treatment, so
it has good lubrication and long service life.
Material/ Metal Processed: Carbon Steel
Extra Service: Machining
Electric componets: Schneider famous brand
Other parts: Ball screw, servo motor....
Place of Origin: Wuxi city, Jiangsu, China,
Machine Type: Press Brake
Color: white, blue, yellow....
Control syste: E21, DA41, DA52, DA66T....
Usage range: Bending metal sheet.
Pipe making process:
1. Breach machine
What kind of breach machine we need is according to the quality of
custom’s product making. Finally we can recommend an economic and
useful one to suit you well then. What you see below picture is
about breaches for two sides for good next welding.
2. pre-bending machine
We need to get working piece pre-bend at two ends of plate as the
following picture for making a good pipe. Obviously there are two
ways to make it. One is pre-bending machine and the other is press
bake machine itself, but we don’t recommend the last way for the
big work piece for long time use. Because of big work piece and big
lateral force, it’s obviously easily to damage the machine.
For example, The following pipe finally made you see is without
pre-bending. I don’t think it is the right pipe you want. So
pre-bending is important to the pipe and what kind of machine is
used for pre-bending is important as well. It does have
relationships to pre-bending quality, work efficiency and so on.
3. CNC press brake machine
We need a press brake machine to finish this kind of pipe. Of
course, besides round-shape pipe, it also can make polygon pipe and
bend for any other angles as well. Obviously we will make this pipe
with many bending times. The size of seam is according to the
thickness of upper tooling holder. Thinner of upper tooling holder
and smaller seam.
4. Automatic Closing and Welding Machine
We need this kind of machine to get seam close and welding. See as
Gas shielded arc welding is at the bottom of outside seam first to
prevent seam opening. We don’t need to remove it any more. Because
it is different from submerged welding, no Submerged arc welding
5. Pipe inside Welding Machine
We need this kind of machine to weld the seam with Submerged
welding inside pipe. The machine is consist of welding trolley,
welding system, mechanic device, welding grounding device, inside
welding monitor system, welding flux feeding and recycle device,
and control system. Adopt trolley to move pipe, the welding gun
Finally it would be like following picture after Pipe inside
6. Pipe outside Welding Machine
We need this kind of machine to finish pipe outside welding as
7. Steel Pipe Straighten and Round straightening combined Machine
This kind of machine is used to make the steel pipe straight and
Regarding all kinds of machine details you have to contact Stacy
who is an expert on making a pipe. She has already offered many
successful solutions for different customers for different pipe.