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Roof Bending Machine
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Roof Bending Machine

Roof Bending Machine

Smooth, Wrinkle-Free Curved Surfaces
Continuously Adjustable Curvature
Compatible with Color-Coated Steel & Aluminum Panels

Product Introduction

 

Our Roof Bending Machine is designed for the curved processing of metal roofing panels, making it ideal for creating circular arcs, arches, and uniquely shaped roof profiles. The machine features a robust welded frame structure and an intuitive operating interface that allows for rapid adjustment of the bending curvature; consequently, its production efficiency is significantly higher than that of manual bending methods. The finished products exhibit consistent curvature and blemish-free surfaces, making this Roof Bending Machine perfectly suited for commercial and industrial roofing projects that require curved panel profiles.

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Specifications

 

Specification

Details

Rated Voltage

380V/50Hz (customizable)

Processing Speed

8-20 m/min

Material Thickness

0.3-0.8mm

Machine Dimensions

5800×1000×1500mm

Total Weight

Approximately 4000kg

 

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Product Features

Precision Bending

Achieves smooth, seamless curved surfaces with a minimum convex bending radius of 4 meters and a minimum concave radius of 6 meters; the curvature transitions are uniform and entirely free of wrinkles.

Multifunctional Compatibility

Capable of processing panels ranging from 300mm to 600mm in width; the spacing between the side guide rollers can be easily adjusted via a handwheel to accommodate various panel widths without the need to replace any components.

Intelligent Control

Equipped with a PLC system and a touchscreen interface, the machine can store multiple sets of bending parameters (including radius and feed speed) for one-touch recall, ensuring a bending angle repeatability accuracy of ≤ ±0.5°.

Robust Construction

The transmission shafts are crafted from #45 steel with a hard chrome plating (≥0.03mm thickness) for exceptional wear resistance and fatigue strength; the bearings and gearbox are engineered for a service life of 5 to 8 years.

 

Application Scenarios

Commercial Buildings

Creates elegant curved roofs for shopping malls, office complexes, and exhibition centers.

Industrial Facilities

Forms durable arched roofs for warehouses, factories, and logistics centers.

Public Infrastructure

Produces specialized roof profiles for stadiums, train stations, and airport terminals.

Architectural Projects

Enables custom curved designs for iconic buildings and landmark structures.

 

Working Principle

 

 
 

Feeding Stage - Panel Positioning and Guidance

The pre-formed color-coated steel panel enters the bending machine via a guide platform, while lateral positioning devices ensure the panel remains perfectly aligned and does not drift off course.

 
 
 

Core Stage - Hydraulic/Mechanical Arc Formation

Two sets of specialized upper and lower die rollers (precisely contoured to match the waveform of the steel panel) apply pressure to the material at specific intervals. By creating minute lateral indentations (or "bites") on the panel's surface, the machine effectively alters the local stress distribution within the material.

 
 
 

Discharge Stage - Progressive Extension and Shaping

As these indentations continuously overlap, the entire steel panel gradually bends upward or downward, ultimately forming a perfectly circular arc or arched roof panel.

 

 

 

 

Routine Maintenance

 

Cleaning of Dies and Pressure Rollers

During the pressing process, the coating or galvanized layer on the surface of the steel panels may generate minute amounts of metal shavings or paint residue. The surface of the mold must be cleaned regularly to prevent foreign objects from scratching the surface of the next batch of sheet metal.

Drive Chain and Gear Lubrication

The drive chains and gears of the Roof Bending Machine require regular application of grease. Since this equipment is frequently transported to construction sites-environments often characterized by high dust levels-timely lubrication is essential to effectively prevent mechanical wear and seizing.

Hydraulic Oil and Pump Station Inspection

Regularly check the hydraulic oil level to ensure there is a sufficient supply. It is recommended to replace the hydraulic oil after the new machine has been in operation for three months; thereafter, replace it every 1–2 years (typically using #46 anti-wear hydraulic oil) to protect the hydraulic valves and cylinders.

Bolt Tightness Inspection

Due to the continuous vibration generated by the equipment during the arc-forming process, it is necessary to regularly inspect the frame connection bolts, mold mounting screws, and limit switches to ensure they have not come loose.

 

 

FAQ

 

Q1: What materials can this roof bending machine handle?

A: The machine works effectively with galvanized steel, color-coated steel (PPGI/PPGL), and aluminum sheets with thickness ranging from 0.3-0.8mm.

Q2: Can the machine be customized for specific roof profiles?

A: Yes, we offer customized solutions including special bending radii, width ranges, and control system configurations to meet unique project requirements.

Q3: What after-sales support do you provide?

A: We offer 1-year warranty on all machines, lifetime technical support, and optional on-site installation and training services at competitive rates.

 

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