Automatic Bending Machine

Engineered by Cooling-Thermal— a specialist manufacturer of precision automation equipment for the thermal management industry — the Automatic Bending Machine delivers the dimensional accuracy and shape repeatability that heat pipe thermal solution assemblies require. Available in three configurations — automatic, full-automatic, and semi-automatic — all models support pipe diameters from Ø5 to Ø10mm and lengths from 150 to 500mm, with bend radius range from R12 to R55 and full 2D and 3D bending capability

Key Specifications

Automatic Pipe Bender (5-Axis)

Advantages of the Automatic Bending Machine

1. 99% Yield Rate — Industry-Leading Production Consistency

The full-automatic bending machine achieves a yield rate of 99% — significantly above the 95-97% typical of general-purpose tube bending equipment. This performance is delivered by the combination of CCD photoelectric alignment for precise edge detection before each bend, CCD opening direction recognition to ensure correct pipe orientation, and servo positioning for repeatable bend geometry across every cycle. For thermal solution manufacturers producing thousands of heat pipes per shift, a 2-4% yield rate improvement directly translates to hundreds of conforming units per day that would otherwise be scrap.

2. One Machine for All Heat Pipe Geometries

Both the automatic and full-automatic models support 2D and 3D heat pipe geometries in the same machine — eliminating the need for separate equipment for different pipe shape requirements. The 5-axis semi-automatic model (X, Y, Z, rotation, 3D axis) covers the same range. In thermal solution manufacturing, heat pipes are required in a variety of geometries: straight-to-flat L-shapes for CPU coolers, complex 3D forms for laptop thermal modules, U-shapes for dual-evaporator assemblies, and custom shapes for specific thermal solution packaging requirements. A single bending machine that handles all of these geometries significantly reduces equipment investment and floor space requirements.

3. Dual CCD Vision System — Eliminates Human Error at the Bending Station

The machine uses two CCD vision functions simultaneously: CCD photoelectric alignment for precise edge selection (ensuring the bend is made at the correct position along the pipe length) and CCD direction recognition for identifying the pipe opening orientation (ensuring the pipe is fed in the correct rotational position before bending begins). These two vision checks eliminate the two most common sources of yield loss at the bending station in manual or semi-manual production processes — incorrect bend position and incorrect pipe orientation. Together, they are the primary technical reason the machine achieves 99% yield rate at production speeds.

4. Up to 6 Bends Per Cycle — Maximum Throughput for Complex Heat Pipe Shapes

The full-automatic model accommodates up to 6 elbow wheels simultaneously and performs up to 6 bends per production cycle. This multi-bend capability is essential for thermal solution heat pipes that require complex 3D geometries — such as laptop heat pipes that must navigate the internal chassis layout, or industrial heat pipes that need multiple directional changes to connect evaporator and condenser locations. Processing 6 bends in a single cycle dramatically reduces the handling time per unit compared to machines that require repositioning between each bend, and is a key throughput advantage for high-volume thermal solution production lines.

5. 90 Stored Bend Programs — Fast Changeover for Multi-Product Production Lines

The machine stores 90 sets of bend data in coordinate format — allowing a production line running multiple heat pipe variants to switch between product programs instantly, without re-programming or manual parameter adjustment between product changeovers. This is particularly valuable for thermal solution contract manufacturers and job shops that produce heat pipes across a range of customers with different geometric requirements. The coordinate format programming is intuitive and user-friendly, enabling operators to set up new bend programs efficiently without requiring specialist programming expertise.

6. Factory-Direct from a Specialist Thermal Solution Automation Manufacturer

Cooling-Thermal is not a general tube bending equipment supplier. We are a specialist manufacturer of automation equipment for the thermal solution industry, operating factory-direct from our Kunshan, Jiangsu facility since 2017. Our bending machines are part of complete heat pipe production lines delivered to Foxconn (25 lines), Nidec (20 lines), Furukawa Electric, and Cooler Master — ensuring that the machine’s bend radius range, geometry capability, and yield rate are validated against the actual requirements of thermal solution production, not against general tube bending standards.

Applicable Pipe Specifications & Bend Geometries — What the Heat Pipe Bending Machine Can Form

The automatic bending machine is designed for the precision shaping of copper heat pipes across the full range of specifications used in thermal solution manufacturing. The following pipe configurations and bend geometry types are supported:

• 2D heat pipes — single-plane L-shapes, U-shapes, S-shapes, and multi-bend configurations for CPU coolers, server heat sinks, and desktop thermal solution assemblies
• 3D heat pipes — multi-plane complex geometries for laptop thermal modules, compact electronics, and thermal solution assemblies requiring heat pipes to navigate constrained chassis layouts
• Small diameter heat pipes — Ø5-Ø6mm ultra-thin heat pipes for smartphone, tablet, and wearable thermal solution applications requiring tight bend radii (R12 minimum)
• Large diameter heat pipes — Ø8-Ø10mm for high-power server, workstation, and industrial electronics thermal solution applications
• Pre-flattened heat pipes — sealed, fluid-filled, hot-pressed heat pipes entering the bending station after the hot press machine, where the flat section geometry must be maintained through the bending process

If your heat pipe wall thickness, bend radius, geometry complexity, or pipe material specification falls outside standard ranges, contact our engineering team to discuss OEM/ODM customisation. As a specialist thermal solution automation manufacturer, Cooling-Thermal can develop custom elbow wheel configurations and bend programs for non-standard heat pipe forming requirements.

Production Line Position — Where the Bending Machine Fits in Heat Pipe & Thermal Solution Manufacturing

The automatic bending machine is positioned at the end of the heat pipe forming sequence — after all internal processes (filling, sintering, degassing, sealing) and after the hot pressing step. This placement is critical: the pipe must be fully sealed and flattened before bending to ensure the internal wick structure and working fluid are not damaged during the forming process.

Why Bending Must Come After Hot Pressing

Bending after hot pressing — rather than before — is the technically correct production sequence for two reasons. First, a round pipe with no flat section is dimensionally simpler to grip, position, and bend consistently than a pipe with an existing flat section that must be protected during bending. Second, the hot press step applies significant hydraulic force to the pipe, which would deform any bends made before pressing. Processing in the correct sequence — press flat first, then bend to shape — produces the highest yield rate and dimensional accuracy at both production stations.

Why Choose Cooling-Thermal— Competitive Advantages for B2B Procurement of Pipe Bending Equipment

Cooling-Thermal has delivered automatic bending machines as part of complete heat pipe production lines to Foxconn (25 lines), Nidec (20 lines), Furukawa Electric, and Cooler Master. Our bending machines operate at the 99% yield rate required by these manufacturers’ thermal solution products — validated in their production facilities, not estimated from laboratory tests. This performance record is what differentiates Cooling-Thermal from general tube bending equipment suppliers for B2B procurement of thermal solution pipe forming equipment.

Delivery, Installation & After-Sales Support — Automatic Bending Machine Service

Factory Acceptance Test (FAT) Before Shipment

Every automatic bending machine undergoes a full Factory Acceptance Test at our Kunshan facility before dispatch. Yield rate (99% target), CCD vision accuracy, servo positioning repeatability, bend radius accuracy across the R12-R55 range, program changeover time, and 2D/3D geometry output are all verified against your confirmed heat pipe specifications. You are welcome to attend in person or via live video.

On-Site Installation & Commissioning

Our engineers travel to your facility to install the machine, configure the CCD vision system, load bend programs for your specific heat pipe product range, calibrate servo positioning, and run production trials. Commissioning is not complete until the machine is achieving the 99% yield rate target on your actual heat pipe specifications under production conditions.

Bend Program Setup & Operator Training

We provide hands-on training covering bend program creation and editing in coordinate format, CCD vision parameter adjustment, elbow wheel installation and alignment, program changeover procedures, yield rate monitoring, and routine maintenance. Complete technical documentation is provided in English. Chinese-language documentation is available on request.

Long-Term Maintenance Support

Our dedicated 5-person in-house maintenance team provides remote support and on-site visits for the life of the equipment. For automatic bending machines, maintenance includes CCD vision system calibration, servo motor servicing, elbow wheel wear assessment, program backup, and yield rate re-verification. Maintaining 99% yield rate over the equipment lifetime requires periodic calibration — our maintenance team ensures this standard is sustained.

Export & International Shipping

We handle full export documentation and support FOB, CIF, and DDP shipping terms. Our thermal solution production equipment has been exported to Japan, South Korea, India, Turkey, Vietnam, and Taiwan. Our logistics team is experienced in international shipment of industrial automation equipment

Complete Your Thermal Solution Production Line — Heat Pipe Equipment from a Single-Source Manufacturer

As a specialist thermal solution automation manufacturer, Cooling-Thermal supplies the full range of equipment required for complete heat pipe and vapor chamber production lines. B2B procurement teams who source from a single specialist manufacturer gain consistent engineering integration, simplified commissioning, and a single point of accountability for production line performance.

All equipment is available as standalone precision forming units or as part of a complete thermal solution production line package. Contact our engineering team to discuss your heat pipe bending requirements, geometry specifications, production volume, and line integration needs.