Profile Stretch Bending & Forming Press Equipment For Sale
Stretch Forming Machine
Expert in Stretch Bending Machines. High-quality Stretch Forming Machine manufacturers in China. Stretching Force is Available in 160T, 128T, 84T, 64T, 40T, 25T, and 10T.
What are the advantages of PBF stretch forming machines?
Minimizes internal stress: Stress is reduced due to the normalized grain structure of the metal after heat treatment and forming process, greatly reducing spring-back. High volume output: Stretch forming is a rapid process and well suited to higher volume output. Large parts: larger parts can be formed with Senior Aerospace Thermal Engineering’s open access cold stretch presses. Lower cost: Stretch forming is lower cost than cold draw forming due to simpler forming tools being used.
High bending quality
- After spraying, electrophoresis, electroplating, polishing, wire drawing, etc., the material can bend directly without damaging the surface of the material.
- Profiles with cavities and complex cross-sections can be formed at one time. When the relative bending radius allows, the inner wall will not be wrinkled and the section will not be distorted.
- Bending can effectively eliminate the residual stress inside the material, and the product has good dimensional stability.
- Due to the cold work hardening of the metal material, the comprehensive mechanical properties of the material can be improved after the material is stretched and bent.
Strong bending ability
- Maximum bending arc length: 12 meters
- The maximum length of one molding can reach 12 meters, which can improve installation efficiency, reduce installation costs, save materials and improve project quality for projects that require a longer arc length.
- Maximum cold-formed section: 500mmx350mm
- Bending Radius: Unlimited as permitted by material mechanical properties (elongation)
Standard model parameters of PBF Stretch Forming Machine
Standard longitudinal profile stretch forming press machines: The table hereunder is an indication to give you an overview of the machines we already installed. Each machine can be customized according to your requirements.
| Model | PBF-10 | PBF-40 | PBF-40+ | PBF-60 | PBF-80 | PBF-100 | PBF-100+ | PBF-160 | PBF-160+ | PBF-200 | PBF-300 |
| Max. Stretching. Force (ton) | 10 | 40 | 40 | 64 | 84 | 108 | 108 | 168 | 168 | 200 | 300 |
| Max. Part. Length(mm) | 3000 | 4000 | 6000 | 6500 | 6500 | 7000 | 9000 | 12000 | 12000 | 12000 | 12000 |
| Min. Part. Length(mm) | 400 | 800 | 1200 | 1800 | 1800 | 2500 | 2500 | 4500 | 4500 | 4500 | 4500 |
| Max. Finished. Angle(deg) | 180 | 180 | 180 | 180 | 180 | 180 | 180 | 180 | 180 | 180 | 180 |
| Min. Forming. Radius(mm) | 250 | 250 | 500 | 500 | 750 | 750 | 1500 | 1500 | 1500 | 1500 | |
| Max. Section(mm) | 80×90 | 140×140 | 140×140 | 200×180 | 200×200 | 250×300 | 250×300 | 300×350 | 300×350 | 350×400 | 350×500 |
What is Stretch Bending Machine
A stretch forming machine is a metalworking machine used to form metal sheets or extrusions into complex, curved shapes by stretching them beyond their elastic limit so that they can be bent around molds or dies.
Stretch forming machines can apply tension in various ways to shape metal sheets or extrusions, and they come in different types, depending on the direction in which the stretch occurs and the method used to apply tension to the workpiece.
In general, stretch forming machines consist of a gripper or clamp to hold the metal sheet or extrusion while it is stretched over a die or mold, a hydraulic or mechanical system to apply the necessary force to control the stretching, and a control system that manages the process.
Other name of stretch forming machine
The Stretch Bending Machine (also named Strech Forming Machine, and Profile Stretch Press) can be divided into rotary type Stretch Bending Machine and double arm type Stretch Bending Machine, and various special stretch bending machines, such as special stretch forming machines for shower rooms, special forming bending machine for train roof beam, and special stretch forming machine for the elevator.
The Stretch Bending Machine adopts full hydraulic control and can cold-form (cold bending) various steel pipes, square tubes, H-beams, I-beams, channel steels, angle irons, flat irons, and aluminum profiles with a section below 500mm.
What are the different types of stretch forming machine?
- Longitudinal stretch forming machine stretches the workpiece along its length and is commonly used in the aerospace industry to create wing and fuselage skins, among other components.
- Transverse stretch forming machine stretches the workpiece along its width and is typically used in the automotive industry, where it can create complex, curved shapes for components like fenders, hoods, and bumpers.
What is the stretch bending process?
The variety of materials with properties suitable for this forming process include stainless steel, clad metals, nickel, aluminum, brass and titanium alloys, and other heat-resistant and refractory metals. In some cases, parts formed using these materials are difficult or impossible to form by other methods.
The aerospace industry initially invented the stretch forming presses used to form aluminum aircraft parts to reduce weight to improve fuel efficiency. Today they are used worldwide across industries such as automotive for body and frame components, architecture to create curved structural elements, and the rail car industry for structure frame components. Read More: Profile Bending Machine: 5 Things Before Buy, 6 Steps to Bend
Application of profile stretch press
The variety of materials with properties suitable for this forming process include stainless steel, clad metals, nickel, aluminum, brass and titanium alloys, and other heat-resistant and refractory metals. In some cases, parts formed using these materials are difficult or impossible to form by other methods.
The aerospace industry initially invented the stretch forming presses used to form aluminum aircraft parts to reduce weight to improve fuel efficiency. Today they are used worldwide across industries such as automotive for body and frame components, architecture to create curved structural elements, and the rail car industry for structure frame components.