Editorial Technical Reference

Industrial Tube Bending Machine

This page explains how Industrial Tube Bending Machine is classified within Fabricated Metal Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

An industrial tube bending machine is a CNC-controlled device designed to precisely bend metal tubes and pipes to specific angles and radii.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Industrial Tube Bending Machine

Definition
An industrial tube bending machine is a CNC-controlled device designed to precisely bend metal tubes and pipes to specific angles and radii. It is essential in manufacturing industries for creating complex tubular components used in automotive exhaust systems, furniture frames, handrails, and structural assemblies. The machine ensures consistent bend quality with minimal deformation, reducing material waste and post-processing requirements. Advanced models feature automatic tool changing and real-time monitoring systems for high-volume production environments. The machine operates by clamping a tube between a bend die and a pressure die, while a mandrel inside the tube prevents collapse during deformation. A hydraulic or electric servo motor drives the bending arm to apply controlled force. Typical specifications include a maximum tube diameter of 60–120 mm, a minimum bend radius of 1.5–3 times the tube diameter, a bending speed of 0.5–2 degrees per second, and positioning accuracy of ±0.05 mm. Maximum wall thickness ranges from 2–8 mm, and power consumption is 5.5–15 kW. The control system is CNC with 3–6 axes, capable of bending angles up to 190 degrees. Operating pressure is 1.0–1.6 MPa, and the machine operates on a 380 V ±10% three-phase supply (IEC 60038) with an IP54 rating. Machine weight varies from 3000–8000 kg, and the operating temperature range is 0–45°C. Materials commonly processed include carbon steel, stainless steel, and aluminum alloy. This directory entry provides reference ranges; verify model-specific values and standards with the legal manufacturer or supplier before procurement.
Working Principle
A hydraulic or electric servo motor drives a bending arm that applies controlled force to a metal tube clamped between a bend die and pressure die, while a mandrel inside the tube prevents collapse during deformation. The CNC control system coordinates the movement of multiple axes to achieve precise bend angles and radii. The tube is fed and positioned automatically, and the bending process is monitored in real time to ensure consistency. The machine can perform multiple bends in sequence without manual intervention, and the tooling can be changed automatically for different tube sizes and bend radii.
Common Materials
Carbon Steel, Stainless Steel, Aluminum Alloy
Technical Parameters
ParameterTypical rangeNotes & selection driver
Maximum Tube DiameterRequired60–120 mmLargest outer diameter of tube that can be processed
Minimum Bend RadiusRequired1.5–3 mmSmallest centerline radius achievable for standard materials
Bending SpeedRequired0.5–2 degrees/secondMaximum rotational speed of bending arm during operation
Positioning AccuracyRequired±0.05 mmRepeatability of bend angle positioning
Maximum Wall Thickness2–8 mmMaximum thickness of tube wall that can be bent without special tooling
Power Consumption5.5–15 kWRated electrical power requirement during operation
Control SystemCNCMulti-axis servo control
Maximum Bending Angle0–190 °Programmable per bend
Number of Axes3–6More axes for complex geometries
Machine Weight3000–8000 kgDepends on model and capacity
Operating Temperature0–45 °CFor control cabinet
Power Supply380 ±10% V ACThree-phase, 50/60 HzIEC 60038
IP RatingIP54Protection against dust and water splashesIEC 60529

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Bending Arm Assembly
    Applies rotational force to bend tube around die
    Material: Forged Steel
  • Clamping Mechanism
    Secures tube in position during bending operation
    Material: Hardened Tool Steel
  • CNC Control System
    Programs and controls bending parameters and sequences
    Material: Electronic Components
  • Hydraulic Power Unit Optional
    Provides hydraulic pressure for bending force
    Material: Cast Iron Housing
  • Mandrel Assembly Optional Part
    Internal support to prevent tube collapse during bending
    Material: Spring Steel
  • Bend Die
    Sets the bend radius; the tube is drawn around it.
    Material: Hardened tool steel
  • Pressure Die
    Presses the straight length against the bend die so the tube follows the radius without slipping.
    Material: Hardened tool steel
  • Electric Servo Motor Optional
    Drives the bending arm on electric machines, in place of the hydraulic power unit.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Industrial Tube Bending Machine.

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: N/A (machine tool, not fluid handling)
other spec: Max tube diameter: 150mm, Max wall thickness: 6mm, Bending radius: 1.5D to 5D, CNC positioning accuracy: ±0.1mm
temperature: Ambient to 50°C (operational environment)
Media Compatibility
✓ Carbon steel tubes ✓ Stainless steel pipes ✓ Aluminum extrusions
Unsuitable: High-temperature superalloy tubes requiring heating above 500°C during bending
Sizing Data Required
  • Maximum tube diameter and wall thickness
  • Required bending radius and angle precision
  • Production volume and cycle time requirements

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Tooling Wear and Fatigue
Cause: Repeated bending cycles cause progressive wear on mandrels, wiper dies, and pressure dies, leading to dimensional inaccuracies and surface defects in tubes. Root causes include improper tool material selection, excessive bending forces, and lack of lubrication.
Hydraulic System Leakage and Contamination
Cause: Degradation of seals, hoses, and fittings in the hydraulic power unit, often due to high-pressure cycling, thermal stress, or particulate contamination in hydraulic fluid, resulting in loss of pressure, erratic machine operation, and potential component failure.
Maintenance Indicators
  • Audible knocking or grinding noises during bending cycles, indicating worn tooling, misalignment, or bearing failure.
  • Visible hydraulic fluid leaks around cylinders, valves, or hoses, accompanied by a drop in system pressure or inconsistent bending force.
Engineering Tips
  • Implement a preventive maintenance schedule for tooling inspection and replacement based on bend counts, using wear-resistant materials and proper lubrication to reduce friction and extend tool life.
  • Maintain hydraulic system integrity through regular fluid analysis, filtration, and seal replacement, while ensuring proper alignment and calibration of bending components to minimize stress concentrations.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 12100:2010 - Safety of machinery ANSI B11.21 - Safety requirements for tube bending machines CE Marking - EU Machinery Directive 2006/42/EC

Quoted from the published standard.

Manufacturing Precision
  • Bend angle tolerance: +/-0.5 degrees
  • Tube wall thinning: maximum 15% reduction
Quality Inspection
  • Dimensional accuracy verification with CMM
  • Non-destructive testing (NDT) for weld integrity

Manufacturers of Industrial Tube Bending Machine

7 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Masion Sheet Metal Fabrication
Cixi, Zhejiang, CN
Founded 2007Over 400+ staff30,000 m3
ISO 16949
Listed on the company's own website · profile compiled by CNFX from public sources
Anhui Harting Machinery Technology Co., Ltd.
Anhui, CN
Listed on the company's own website · profile compiled by CNFX from public sources
DurmaPress
Anhui, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Fitok Group
Beijing, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Hikelok
Chengdu, Sichuan, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Shanghai Metal Corporation
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources
SMS Machinery
Hubei, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
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Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
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Frequently Asked Questions

What materials can this tube bending machine process?

The machine is designed to process carbon steel, stainless steel, and aluminum alloy tubes. The specific material grade and wall thickness must be within the machine's capacity, such as a maximum wall thickness of 2-8 mm. Always confirm with the manufacturer for your specific material.

What is the maximum bending angle and how many axes does it have?

The maximum bending angle is 190 degrees per bend, and the machine has 3 to 6 axes for complex geometries. The number of axes affects the complexity of bends that can be achieved. Verify the exact configuration with the supplier.

What are the power requirements and environmental conditions?

The machine requires a three-phase power supply of 380 V ±10% at 50/60 Hz, with a power consumption of 5.5-15 kW. It is rated IP54 for dust and water splash protection and operates in temperatures from 0 to 45°C. Ensure your facility meets these requirements.

How accurate is the bending positioning?

The positioning accuracy is ±0.05 mm, ensuring repeatable bend angles. However, actual accuracy may depend on material properties, tooling condition, and machine calibration. It is recommended to perform test bends and verify with the manufacturer.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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