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Shanghai, China
5000PCS/Year
L/C, T/T
Product Description
The GM-SB-76NCB is a full-hydraulic-driven tube bender controlled by a PLC with a touch screen interface (a text display is available as an alternative configuration). The machine is equipped with pipe clamping, a guide die, a mandrel, a wiper die (anti-crease tooling), a boost/assist push system, and bending tooling. Under hydraulic operation, the machine bends metal pipes of various dimensions in both standard and custom shapes. Bending angles are controlled by a high-precision imported encoder, ensuring consistent accuracy across production runs. The machine is designed with European tube-bending technology and manufactured in China, offering a cost-effective configuration for thick-wall steel processing.
The integrated mandrel system supports the inner wall of the tube during bending, preventing collapse, wrinkling, and excessive ovality — particularly important for thick-wall steel pipe at tight bend radii. The mandrel works with the wiper die to control the flow of material on the inside radius of the bend.
The 7.5kW system motor drives a 25L hydraulic pump delivering a maximum pressure of 16MPa. The full-hydraulic configuration provides consistent clamping and bending force across the full capacity range, supporting the 76×5mm thick-wall steel specification.
The PLC system manages the bending cycle, and a high-precision imported encoder monitors the bending angle to ±0.10°. The touch screen interface allows operators to set and store bend parameters, supporting repeatable setup for production runs.
Name | Unit | Parameter |
|---|---|---|
Max. Bending Capacity | mm | 76×5 |
Bending Radius Range | mm | 30-350 |
Max. Bending Angle | ° | 190° |
Though Effective Distance | mm | 3000 |
Bending Speed | °/sec | 30 |
Bending Precision | ° | ±0.10 |
System Motor Power | KW | 7.5 |
Oil Pump Delivery Volume | L | 25 |
Max. Pressure | Mpa | 16 |
L×W×H (Packaging Dimension) | mm | 4200×1200×1350 |
Machine Weight | T | 3.0 |
The mandrel is a critical component for thick-wall tube bending. It is inserted into the tube ID and positioned at the tangent point of the bend, providing internal support as the tube is drawn over the bending die. This reduces the tendency of the inner wall to wrinkle and the outer wall to thin excessively. The wiper die, mounted behind the bending die, wipes the inside radius of the tube to prevent material from bunching. Together, the mandrel and wiper die allow this machine to produce tight-radius bends (minimum 30mm) in 76×5mm steel pipe with controlled ovality. The boost/assist push system provides additional forward force during bending, reducing wall thinning on the outside of the bend for thicker-wall materials.
This machine serves commercial users in thick-wall steel pipe processing, including pressure vessel component fabrication, petroleum and gas pipe fitting production, heavy machinery structural tubing, and steel furniture manufacturing. The 76×5mm capacity and mandrel system make it suitable for applications where bend cross-section integrity is required for pressure retention or structural load. The 3,000mm through effective distance handles standard pipe lengths for fitting and component production. The 190° maximum bend angle covers standard elbow and custom bend geometries.
The GM-SB-76NCB is ISO 9001, CE, and UL certified, with a 2-year warranty covering manufacturing defects. The facility has a production capacity of 5,000 units per year, supporting consistent lead times for business buyers. The machine ships from Shanghai Port, packaged for sea freight. Payment terms include L/C and T/T. Core hydraulic and electrical components are selected for industrial durability, and each machine undergoes functional testing before shipment. Enterprise customers may request a factory acceptance test and sample bending trials using their own tube material.
The GM-SB-76NCB has a maximum bending capacity of 76×5mm, making it suitable for thick-wall steel pipe processing.
The mandrel supports the inner wall of the tube during bending, preventing collapse, wrinkling, and excessive ovality. Working with the wiper die and boost/assist push system, it enables tight-radius bends (minimum 30mm) in thick-wall steel with controlled cross-section deformation.
The bending precision is ±0.10°, monitored by a high-precision imported encoder and managed by the PLC control system.
The bending radius range is 30-350mm, with a minimum bend radius of 30mm.
The machine is ISO 9001, CE, and UL certified, and comes with a 2-year warranty against manufacturing defects. The production facility has an annual capacity of 5,000 units.
