H-Beam Straightening Machine — New | Jinfeng, Ningbo, China

The H-Beam Straightening Machine is a critical piece of equipment in H-beam production, used to correct the flange plate deformation that naturally occurs from weld shrinkage after welding. Once a T-beam or H-beam profile has been welded, the flange plate distorts slightly due to the heat and shrinkage of the weld — this machine straightens the beam back to a qualified, dimensionally accurate finished workpiece.

Jinfeng offers five models across this range, from the JZ40 (mechanical, no hydraulic system) through to the heavy-duty YJZ80D, allowing buyers to select the right machine based on the beam sizes and production volume they need to support. The machine features large straightening force, fast straightening speed, a small footprint, low energy consumption, and reliable, easy operation — making it especially suited to steel construction, shipbuilding, and other mass-production H-beam and T-beam manufacturers.

Why Beam Straightening Matters

Welding naturally introduces heat-induced distortion into a beam's flange plate — without correction, this deformation would result in an out-of-spec finished product that fails to meet structural tolerance requirements. A dedicated straightening machine applies precise, controlled force to correct this distortion, restoring the beam to the flatness and straightness required for structural use.

This step is essential in any serious H-beam or T-beam production line — whether producing beams for steel building construction, shipbuilding, or general structural steel fabrication — and is typically positioned immediately after the welding stage in a full production line.

Machine Specifications

JZ40

• Hydraulic system: None (mechanical)
• H-beam web height: ≥200mm
• H-beam flange width: 200–800mm
• Flange thickness: 6–40/30mm (Q235/Q345)
• Input/output roller: 10m + 10m (free roller)
• Straightening speed: 11,000mm/min
• Total power: 13.2kW

YJZ60A

• Hydraulic system: Yes
• H-beam web height: ≥200mm
• H-beam flange width: 200–800mm
• Flange thickness: 6–60/40mm (Q235/Q345)
• Input/output roller: 12m + 12m (free roller)
• Straightening speed: 8,500mm/min
• Total power: 15kW
• Hydraulic pressure: 16 MPa

YJZ60B

• Hydraulic system: Yes
• H-beam web height: ≥220mm
• H-beam flange width: 200–800mm
• Flange thickness: 8–80/60mm (Q235/Q345)
• Input/output roller: 12m + 12m (driven roller)
• Straightening speed: 6,700mm/min
• Total power: 15kW
• Hydraulic pressure: 16 MPa

YJZ80B

• Hydraulic system: Yes
• H-beam web height: ≥450mm
• H-beam flange width: 200–1000mm
• Flange thickness: 20–100/80mm (Q235/Q345)
• Input/output roller: 12m + 12m (power roller with hydraulic)
• Straightening speed: 6,000mm/min
• Total power: 26.9kW
• Hydraulic pressure: 16 MPa

YJZ80D

• Hydraulic system: Yes
• H-beam web height: ≥450mm
• H-beam flange width: 200–1000mm
• Flange thickness: 20–80mm (Q345)
• Input/output roller: 12m + 12m (power roller with hydraulic)
• Straightening speed: 4,700mm/min
• Total power: 35.5kW
• Hydraulic pressure: 16 MPa

Condition Available: New

System Components

• Base seat
• Left/right box structure
• Web clamping device
• Main transmission mechanism
• Hydraulic and electrical control system
• Transport conveyor rollers

Key Features

• Large straightening force with fast straightening speed
• Small footprint, low energy consumption
• Easy operation and reliable performance
• Five model options covering light-duty through heavy-duty production
• Suitable for both H-beam and T-beam profiles

Applications

• Steel construction and structural steel fabrication
• Shipbuilding H-beam and T-beam production
• Mass production of welded structural beams

Who This Machine Is For

• H-beam and T-beam production line operators
• Steel construction and structural steel manufacturers
• Shipbuilding companies producing structural beam components

Frequently Asked Questions

Why do H-beams need straightening after welding?
Welding causes the flange plate to deform slightly due to heat and weld shrinkage. A straightening machine corrects this distortion, restoring the beam to the flatness and dimensional accuracy required for structural use.

What's the difference between the five models?
The models range from the JZ40 (mechanical, smaller flange widths and thicknesses) up to the YJZ80D (heavy-duty, hydraulic, handling flange widths up to 1000mm and thicknesses up to 100mm). Larger models handle bigger, thicker beams but operate at a slower straightening speed due to the increased force required.

Can this machine straighten both H-beams and T-beams?
Yes. The machine is suitable for straightening both welded H-beam and T-beam profiles.

Do I need a hydraulic system?
The JZ40 model operates without a hydraulic system, suited to lighter applications. The YJZ60A, YJZ60B, YJZ80B, and YJZ80D models all use hydraulic systems for higher straightening force on larger, thicker beams.

Is financing or staged payment available?
Yes. A deposit secures your order and begins production, with the remaining balance due only once your machine has been built, inspected, and is ready to ship.

Should I buy new or used?
This model is available new, giving full manufacturer support from day one.