Section Bending Series
Hydraulic Profile Bending Machine
Heavy-duty hydraulic profile bending machine engineered for precision curving of structural steel sections including angle iron, channel steel, H-beams, I-beams, round tubes, square tubes, flat bars and special profiles. The KAVDO Profile Bending Machine features a robust three-roll configuration with full hydraulic drive and optional CNC control — delivering tight-radius bends, consistent arc accuracy and high production throughput for steel structure fabricators, construction contractors, shipbuilders and architectural metalwork specialists.
- Bends Angle, Channel, Beam & Tube
- Section Capacity up to HEB 300
- Full Hydraulic Drive System
- CNC & NC Control Available
Heavy Duty
15+
Years Experience
80+
Countries Served
2000+
Machines Delivered
CE&ISO
Certified Quality
Product Overview
Bend Any Profile. Any Radius. With Precision.
The KAVDO Hydraulic Profile Bending Machine is a versatile section roller designed to curve virtually any structural steel profile — from standard angle iron and channel steel to heavy H-beams, round pipes, square tubes, flat bars and custom extrusions. Its three-roll pyramid configuration, powered by a full hydraulic system, applies progressive bending force to produce smooth, uniform arcs with exceptional dimensional accuracy.
Available with manual, NC or full CNC control, the machine suits workshops of every scale — from small-batch custom fabrication to high-volume automated production. Quick-change tooling rollers and an intuitive operator interface make profile changeover fast and simple, maximizing uptime and minimizing setup waste.
- Bends angle, channel, I-beam, H-beam, tube, pipe, flat bar and special profiles
- Full hydraulic drive with proportional valves for smooth, stepless force control
- Quick-change tooling system — switch profiles in under 10 minutes
- Horizontal and vertical bending orientations supported
- CNC control with arc-length programming and automatic multi-pass bending
Performance Highlights
Key Advantages
The KAVDO profile bending machine combines heavy-duty hydraulic power, precision roller geometry and intelligent control — engineered for fabricators who demand repeatable accuracy on every curved section.
Universal Profile Capability
One machine handles angle iron, channel steel, I-beams, H-beams, T-bars, round tubes, square tubes, rectangular tubes, flat bars and custom extrusions. Quick-change tooling rollers with profile-matched grooves ensure secure grip and distortion-free bending for every cross-section shape.
Precise Arc Accuracy
Hydraulic proportional valves deliver smooth, stepless bending force with real-time pressure feedback. Combined with CNC-controlled roll positioning and encoder-measured arc length, the machine achieves radius tolerances within ±1 mm — meeting the tightest structural and architectural specifications.
Full Hydraulic Power
All three rolls are driven and positioned by independent hydraulic cylinders — delivering massive bending force for heavy sections up to HEB 300 without mechanical strain. The full hydraulic system provides infinitely variable speed control and consistent torque from start to finish of every bending cycle.
CNC Multi-Pass Automation
The CNC controller calculates the optimal number of bending passes and progressive roll positions automatically based on your target radius, profile type and material grade. Simply input the desired arc parameters and the machine executes the complete multi-pass sequence — eliminating trial-and-error and producing identical arcs every time.
Heavy-Duty Construction
Monolithic cast steel frame with stress-relieved machining provides rigid, vibration-free support under maximum bending loads. Hardened alloy steel rollers, heavy-duty planetary gearboxes and oversized bearings are rated for decades of continuous industrial service — built for the most demanding fabrication environments.
Quick Tooling Changeover
Modular roller sets with quick-lock mounting allow profile changeover in under 10 minutes. A comprehensive tooling library covering all standard structural sections is available — and custom roller sets for special profiles can be designed and manufactured to your exact drawings.
Need Help Choosing the Right Profile Bending Machine?
Our engineers will recommend the optimal profile bender based on your section type, size and bending radius requirements.
Technical Data
Specifications
Available in multiple capacity configurations to match your section size and bending requirements. All models feature full hydraulic drive with optional CNC control.
| Parameter | KV-PB06 | KV-PB16 | KV-PB45 | KV-PB100 | KV-PB180 | KV-PB320 |
|---|---|---|---|---|---|---|
| Profile Maximum Section Modulus (cm³) | 6 | 16 | 45 | 100 | 180 | 320 |
| Bending Speed (m/min) | 4~5 | 4~5 | 4~5 | 4~5 | 4~5 | 4~5 |
| Hydraulic System Pressure (MPa) | 25 | 25 | 25 | 25 | 25 | 25 |
| Drive Method | Hydraulic Motor Drive, 3-axis main drive | |||||
| Lifting Method | Lower Roller Lifting (Arc Motion) | |||||
| Lower Roller Lifting Method | Hydraulic Cylinder | |||||
| Idler Lifting Method | Mechanical lifting | Mechanical lifting | Mechanical lifting | Hydraulic Cylinder | Hydraulic Cylinder | Hydraulic Cylinder |
| Cylinder Quantity (set) | 2 | 2 | 8 | 8 | 8 | 8 |
| Motor Quantity (set) | 1 | 1 | 1 | 2 | 2 | 2 |
| Motor Power (kW) | 4 | 5.5 | 7.5 | 15+2.2 | 30+2.2 | 45+2.2 |
| Upper Roller Diameter (mm) | 75 | 90 | 105 | 160 | 240 | 280 |
| Lower Roller Diameter (mm) | 75 | 90 | 105 | 150 | 220 | 260 |
| Die Diameter (mm) | 220 | 250 | 310 | 420 | 550 | 660 |
| Weight (T) | 1.5 | 2 | 3 | 8 | 18 | 24 |
| Overall Dimensions L×W×H (mm) | 2200×1500×1500 | 2300×1500×1600 | 3000×1800×600 | 4000×2200×2200 | 5500×2500×2300 | 5700×2800×800 |
* Bending capacity is based on S235JR (Q235 / A36) mild steel at room temperature. Capacity for higher-strength materials (S355, Q345, stainless steel) is reduced proportionally. Minimum bending radius depends on section type, orientation and material. Custom configurations available upon request.
Core Components
Machine Structure
Precision-engineered with heavy-duty industrial components and three-roll pyramid geometry — delivering unmatched bending force, profile grip stability and operational reliability.
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1
Top Bending Roll (Pressure Roll)
Hydraulically positioned top roll with linear guide rails and servo valves delivers ±0.1 mm position accuracy for repeatable radius control.
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2
Bottom Drive Rolls (Left & Right)
Two independently driven bottom rolls with planetary gearboxes provide all-roll grip — eliminating slippage and enabling bidirectional multi-pass bending.
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3
Quick-Change Tooling Rollers
Profile-matched roller sets with quick-lock mounting allow complete tooling changeover in under 10 minutes for minimal downtime.
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4
NC / CNC Control System
Standard NC controller with optional full CNC upgrade — automatic multi-pass sequences, arc-length measurement and stored program recall.
Core Technology
Intelligent CNC Profile Bending System
The KAVDO profile bending machine offers an advanced CNC control option that transforms complex section bending into a precise, repeatable and highly automated process. The CNC system stores complete bending programs for different profiles, radii and arc lengths — enabling instant job recall and identical output from the first piece to the last.
Operators input the target profile type, material grade, desired radius and arc length. The CNC automatically calculates the optimal number of passes, progressive roll positions for each pass, and the exact feed distance. An integrated rotary encoder measures actual arc length in real time, and the system compensates for springback automatically — delivering finished arcs that meet specification without manual adjustment.
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±1mmRadius Tolerance
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500+Stored Programs
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AutoSpringback Compensation
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3-RollAll Rolls Driven
How It Works
4-Step Profile Bending Workflow
From straight section to finished arc — the hydraulic profile bender simplifies the process with quick tooling setup, progressive multi-pass bending and precise arc-length control.
1
Install Tooling & Load Program
Mount the profile-matched roller set onto the three roll shafts using the quick-lock system. Select or input the bending program on the NC/CNC controller — specifying profile type, material, target radius and arc length.
2
Feed & Initial Pass
Feed the straight section between the bottom rolls. The top roll descends hydraulically to the first-pass position, applying initial bending force. The driven rolls feed the profile forward through the bending zone at controlled speed.
3
Progressive Multi-Pass Bending
The top roll incrementally advances deeper with each pass while the profile feeds back and forth through the rolls. The CNC manages roll position, feed direction and arc-length measurement automatically — gradually forming the target radius.
4
Verify & Unload
When the target arc length and radius are reached, the machine stops automatically. Verify the radius with a template or laser gauge. The CNC stores the proven parameters for instant recall on repeat production batches.
Bending Capabilities
Profile Types & Bending Samples
From standard structural sections to special custom profiles — see the range of profile types and the superior bending quality achievable with the KAVDO profile bending machine.
Angle Iron Bending
Equal and unequal angle sections bent inward (leg-in) or outward (leg-out) with consistent radius and minimal distortion up to 200×200 mm.
Channel Steel Bending
C-channel and U-channel bent on the easy axis or hard axis for curved frames, rings and structural arches up to 400 mm web height.
H-Beam & I-Beam Bending
Heavy structural beams curved on the strong or weak axis for portal frames, curved roof trusses and architectural arches up to HEB 300.
Round Tube & Pipe Bending
Seamless and welded round tubes and pipes bent with mandrel-free precision for handrails, frames and structural curves up to Ø273 mm.
Square & Rectangular Tube
Hollow structural sections curved without wall collapse or wrinkle using profile-matched dies up to 250×250 mm cross section.
Flat Bar Bending
Flat bars bent on edge (hard way) or flat (easy way) for flanges, rings, window frames and decorative metalwork up to 300×40 mm.
T-Bar & Bulb Flat Bending
T-sections and bulb flats curved for shipbuilding frames, stiffeners and structural ring components with controlled web distortion.
Spiral & Helical Bending
3D spiral and helical curves produced by combining profile bending with controlled pitch — for spiral staircases, helicoidal ramps and decorative elements.
Applications
Industries We Serve
From large-span steel structure construction to architectural metalwork, from shipbuilding to tunnel engineering — the KAVDO profile bending machine delivers the precision and throughput demanded by the world’s most challenging structural forming applications.
Why KAVDO
Your Trusted Manufacturing Partner
Beyond machines — we deliver complete profile bending solutions including pre-sales engineering consultation, custom tooling design, installation commissioning, operator training and lifelong after-sales support.
Factory Direct Price
Buy directly from our own factory — no middlemen. Competitive pricing with transparent quotation and no hidden costs. Bulk order discounts available.
Engineering Support
Dedicated project engineer reviews your profile drawings, recommends the optimal machine model and tooling configuration, and provides bending process guidance from quotation through production ramp-up.
Global Shipping
Professional heavy equipment export packing with anti-rust treatment, fumigation certificate and transport insurance. Full container or break-bulk shipping worldwide.
Lifetime Support
Remote video troubleshooting, spare parts supply within 48 hours, on-site installation commissioning and optional annual maintenance service contract for the life of the machine.
Get Started
Start Your Project with KAVDO Today
Get professional advice and competitive pricing within 24 hours. Tell us about your requirements and our team will prepare a tailored solution for you.
- Response within 24 hours
- Free technical consultation & quotation
- Serving 80+ countries worldwide
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