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PBF-35-50 Stretch Forming Machine

The PBF-35-50 Stretch Forming Machine stands as a versatile solution with a single stretching cylinder capable of exerting an impressive maximum pulling force of 35 tons. This machine showcases remarkable adaptability by efficiently bending various profiles, including IPE beam 200, 120-angle iron, 168 steel pipes, 180 T-shaped materials, and an assortment of large-scale aluminum profiles used in doors, windows, and curtain wall systems.

stretch forming machine
stretch forming machine

Its ability to handle such a diverse range of materials and profiles underscores its versatility and reliability in the shaping process. Specifically, the machine demonstrates proficiency in manipulating IPE beams, angle irons, steel pipes, T-shaped materials, and an array of substantial aluminum profiles commonly used in architectural applications.

With a substantial 35-ton pulling force, this Stretch Forming Machine ensures precision and accuracy in bending these materials to meet stringent dimensional requirements. Its adaptability to work with various large-scale aluminum profiles used extensively in doors, windows, and curtain wall constructions highlights its significance in architectural and construction industries.

In summary, the PBF-35-50 Stretch Forming Machine’s capability to bend a wide array of materials, including diverse aluminum profiles and structural components, showcases its versatility and efficiency. Its substantial pulling force and adaptability make it an indispensable tool in industries requiring precision-formed metal profiles for architectural and construction purposes.

Main Parameters

Forming MethodSwing Arm 
Tensile Force35 Tons
Stretching Cylinders2
Clamp  Type: Round
Manual Clamp Rotation ±180°
Unbend Length≤200mm
Max Bending Length5000 mm
Min Bending Length1000 mm
Min Bending Radius500mm
Max  Bending Radius Angle180°
Stretch Displacement Accuracy±0.3mm
Swing Arm Cylinder Position Accuracy±0.5°
Stretch Cylinder Stroke850mm
Stretch Cylinder Feed Speed25 to 680 mm/min
Swing Angle Of Clamp Stretching Cylinder ±30°(Free Swing)
Swing Arm Swing Angle10° Forward, 90° Backward
Max Rotation Speed Of Swing Arm Rotation≥600mm/Min
Swing Arm Return Speed (No Load)1.5/S
Tensile Cylinder Bracket DisplacementMotor + Programmer Feedback, Displace Accuracy <=0.2mm
Mold Table Size1600 Mm X 1100 Mm
Platform Load Capacity≥4.5 Tons
Distance From Clamp Center Line To Mold Table Surface289mm
Bracket Guide Screw Diameter80mm
Hydraulic Oil Container Capacity500 L
Power SupplyThree-Phase Power Supply, 34.5kw

Main Components

Component nameSpecification Brand
Servo ControllerGugaoChina
Proportional Servo ValveRexrothGermany
Oil PumpSumitomoJapan
Servo MotorHigh MikeChina
Server DriverHigh MikeChina
Pressure SensorHYDACGermany
Low Voltage ComponentsSchneiderChina
High Pressure Oil FilterHYDACGermany
Suction And Return Oil FiltersDawnChina
Lubrication DeviceLiubianChina

Is stretch forming a process of cold drawing?

Stretch forming and cold drawing are two distinct metal forming processes, each with its own characteristics and applications.

  • Stretch forming: Stretch forming is a metalworking process where a piece of sheet metal is stretched and bent simultaneously over a die to achieve the desired shape. It involves gripping the edges of a metal sheet and stretching it over a form, typically using hydraulic or mechanical forces. This process is often used to create contoured or complex shapes in materials like aluminum, steel, and other metals.
  • Cold drawing: Cold drawing, on the other hand, is a metalworking process used to reduce the cross-sectional area or change the shape of a metal rod or wire by pulling it through a die or series of dies. In cold drawing, the material is drawn (pulled) through the die at room temperature, without heating it significantly. This process is commonly used to produce products like wires, bars, and tubes with improved dimensional accuracy, surface finish, and mechanical properties.

While both processes involve manipulating metal to achieve desired shapes, stretch forming focuses on shaping sheet metal by stretching and bending, while cold drawing involves reducing the diameter or changing the shape of solid metal rods or wires through pulling them through dies. They serve different purposes and are utilized in distinct manufacturing applications.