Metal Plate Bending Machine

Product Specifications

Technical details and manufacturing context for Metal Plate Bending Machine

Definition

A metal plate bending machine is a standalone industrial device used in metal fabrication shops to bend sheet metal and plates into precise angular shapes. It operates by clamping the workpiece between a punch and die, then applying force to create controlled bends. These machines are essential for producing brackets, enclosures, frames, and structural components across multiple industries including construction, automotive, and manufacturing. The machine typically consists of a robust frame, a hydraulic or mechanical drive system, a ram with an upper tool (punch), a lower die, and a back gauge for positioning. The bending force ranges from 100 to 4000 tons, allowing for a wide variety of material thicknesses and lengths. The working length, or maximum bendable plate length, spans from 2000 to 8000 mm. The ram stroke length is between 100 and 300 mm, and the bending speed (ram descent speed) is 5 to 15 mm/s. The back gauge range, which positions the workpiece, is 0 to 1000 mm, with a positioning accuracy of ±0.05 mm to ensure repeatable bends. Electrical power consumption depends on the bending force and ranges from 5.5 to 45 kW. The machine requires a 3-phase, 380 V supply at 50/60 Hz, conforming to IEC 60038. Operating temperature should be between 5 and 40 °C. The protection class is IP54 per IEC 60529, indicating dust and splash water protection. Machine weight varies from 5000 to 30000 kg, and overall dimensions (L×W×H) range from 3000×1500×2200 to 8000×2500×3500 mm. These specifications are typical ranges; actual values depend on the specific model and application. Always verify model-specific parameters and standards with the legal manufacturer or supplier before procurement or installation.

Working Principle

The machine uses hydraulic or mechanical force to drive a ram with an upper tool (punch) downward onto a metal plate positioned over a lower tool (die). The plate is clamped between the punch and die, and as the ram descends, the punch forces the plate into the die opening, creating a controlled bend. The back gauge positions the plate accurately to ensure consistent bend location. The bending angle is determined by the depth of the punch penetration and the die opening width. The system is controlled via electrical controls, allowing for precise adjustment of stroke, speed, and positioning.

Common Materials

structural steel, hardened tool steel, hydraulic components, electrical controls

Technical Parameters

Parameter	Typical range	Notes & selection driver
Bending ForceRequired	100–4000 ton	Maximum hydraulic force
Working LengthRequired	2000–8000 mm	Maximum bendable plate length
Stroke LengthRequired	100–300 mm	Ram vertical travel distance
Bending Speed	5–15 mm/s	Ram descent speed
Back Gauge Range	0–1000 mm	Positioning system travel
Positioning Accuracy	±0.05 mm	Ensures repeatable bends
Electrical Power	5.5–45 kW	Depends on bending force
Supply Voltage	380 V	3-phase, 50/60 HzIEC 60038
Operating Temperature	5–40 °C	Hydraulic oil viscosity changes
Protection Class	IP54	Dust and splash water protectedIEC 60529
Machine Weight	5000–30000 kg	Foundation requirements
Overall Dimensions (L×W×H)	3000×1500×2200–8000×2500×3500 mm	Space for installation and maintenance

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

Hydraulic Ram
Applies downward bending force

Material: Hardened Steel
Upper Tool (Punch) Part
Forms bend radius on workpiece

Material: Tool Steel
Lower Tool (Die) Part
Provides bending angle and support

Material: Tool Steel
Back Gauge
Positions workpiece for consistent bends

Material: Steel
Hydraulic Power Unit
Generates hydraulic pressure for ram

Material: Steel/Copper
CNC Control System Optional
Automates bend sequencing and positioning

Material: Electronics/Plastic

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Metal Plate Bending Machine.

Manufacturers of Metal Plate Bending Machine

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

Jinan Senfeng Laser Technology Co., Ltd.

Jinan, Shandong, CN

TÜV CE FDA ETL SGS

Also makes: Fiber Laser Cutting Machine, Automated Assembly Systems, Laser Welding Machine and 8 more

Listed on the company's own website · profile compiled by CNFX from public sources

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Frequently Asked Questions

What is the maximum bending force of this machine?

The bending force ranges from 100 to 4000 tons, depending on the model. The actual force required depends on the material type, thickness, and bend length. Always consult the manufacturer for the specific model's capacity.

What is the working length of the machine?

The working length, or maximum bendable plate length, ranges from 2000 to 8000 mm. This determines the maximum length of the plate that can be bent in a single operation. Verify the exact working length for the model you are considering.

What electrical supply is required?

The machine requires a 3-phase, 380 V electrical supply at 50/60 Hz, conforming to IEC 60038. The electrical power consumption ranges from 5.5 to 45 kW, depending on the bending force. Ensure your facility meets these requirements.

What is the positioning accuracy of the back gauge?

The back gauge positioning accuracy is ±0.05 mm, ensuring repeatable bends. The back gauge range is 0 to 1000 mm. This accuracy is critical for consistent production. Confirm the accuracy with the manufacturer for your specific application.

Data Basis

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

Preliminary Technical Classification

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pressure:	Hydraulic system: 0-300 bar, Bending force: Up to 5000 kN
other spec:	Plate thickness: 1-50 mm, Bending length: Up to 6000 mm, Bending angle: 0-180°, Cycle time: 10-60 seconds
temperature:	Ambient to 150°C (operating environment)

Product Specifications

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Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

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