Overview of the GM-38NCBA Full-Automatic Pipe Bender

The GM-38NCBA is a full-automatic single-head pipe bender built for component manufacturers that require repeatable, high-volume bending of small-diameter tubing. Equipped with servo-driven feeding (Y), rotation (B), and bending (C) axes under PLC control, the machine executes multi-bend sequences automatically once a program is loaded. It processes carbon steel, mild steel, stainless steel, aluminum, copper, brass, and alloy tubes with a maximum bending capacity of 38 × 2 mm.

The bending axis reaches 60°/sec, the rotation axis 200°/sec, and the feeding axis 1,000 mm/sec, while all three axes hold precision to ±0.10° or ±0.10 mm. Up to 200 bending programs can be stored in the PLC and recalled through the dialogue-style touch screen, reducing changeover time between product runs. A mandrel can be engaged or disengaged automatically depending on wall thickness and radius requirements, and spring-back compensation is handled within the control system.

Technical Parameters of the GM-38NCBA CNC Pipe Bending Machine

Standard Features of the GM-38NCBA Automatic Tube Bender

The GM-38NCBA integrates hydraulic clamping, encoder-controlled bending angle, and a guide module with assist-push capability. Standard functions include manual, semi-automatic, and fully automatic operating modes; a counter that retains workpiece counts after power loss; automatic lubrication; error self-diagnosis with alarm; and limit protection. A movable foot switch provides auto-start, pause, and emergency-stop control.

The hydraulic system uses individual valve control for each action, which is intended to extend the service life of hydraulic components. The touch panel supports multiple languages on request, and the control system retains stored programs after power-off. Optional functions include slow core reversing, slow bending, and anticipated mandrel extraction for thin-wall or cosmetic-surface applications.

The machine is produced under the manufacturer's ISO 9001 quality management system and carries CE marking. Commercial users requiring North American electrical certification should confirm UL/CSA coverage at the quotation stage. The manufacturer reports a production capacity of 5,000 units per year for this model line, which supports repeat orders for enterprise customers scaling output.

Industrial Applications for the GM-38NCBA Pipe Bender

The GM-38NCBA targets business buyers in automotive component fabrication, furniture manufacturing, HVAC production, fitness equipment assembly, and medical device frame manufacturing. Its 2,200 mm through-effective distance and 20–200 mm bending radius range cover typical tubular parts such as seat frames, handlebars, exhaust headers, conveyor rails, and support brackets.

For industrial clients comparing automatic benders, the GM-38NCBA's three-axis servo configuration distinguishes it from hydraulic-only NC machines: feeding and rotation are positioned by servomotors rather than manual adjustment, which reduces setup time for multi-bend parts and supports consistent repeatability across long production runs. The 4 kW system motor and 14 L oil pump deliver a maximum pressure of 16 MPa, and the packaged footprint of 3,500 × 700 × 1,300 mm fits standard workshop layouts.

FAQ About the GM-38NCBA Full-Automatic Pipe Bender

What tube materials can the GM-38NCBA bend?

The machine is designed for carbon steel, mild steel, stainless steel, aluminum, alloy, copper, and brass tubes, as well as solid bar, square, rectangle, oval, and profile sections.

What is the maximum bending capacity and precision?

The maximum bending capacity is 38 × 2 mm. Bending, turning, and feeding precision are each rated at ±0.10° or ±0.10 mm. The maximum bending angle is 190°.

How many programs can the PLC store?

The PLC stores up to 200 bending programs, which are displayed on a dialogue-style touch screen and retained after power-off.

Is the GM-38NCBA a true CNC machine?

The GM-38NCBA uses servo motors on the feeding (Y), rotation (B), and bending (C) axes with closed-loop control under PLC. This provides full-automatic, program-driven bending with multi-axis coordination, consistent with CNC-class operation for this machine category.

What are the dimensions, weight, and power requirements?

Packaged dimensions are 3,500 × 700 × 1,300 mm, machine weight is 2.0 tons, and the system motor is 4 kW with a maximum hydraulic pressure of 16 MPa. The unit requires standard industrial three-phase power.