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An H-Beam Straightening Machine is a heavy-duty industrial equipment designed to correct bending, distortion, and deformation in welded H-beams, I-beams, and other structural steel sections. During the welding process, beams often become warped due to thermal stress, which reduces accuracy and quality. This machine uses powerful hydraulic or mechanical rollers to apply controlled pressure on the flanges of the beam, restoring them to the required straightness.<br><br><br>Equipped with high-strength rollers, robust hydraulic cylinders, and an automatic feeding system, the machine ensures fast and precis
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An H-Beam Straightening Machine is a heavy-duty industrial equipment designed to correct bending, distortion, and deformation in welded H-beams, I-beams, and other structural steel sections. During the welding process, beams often become warped due to thermal stress, which reduces accuracy and quality. This machine uses powerful hydraulic or mechanical rollers to apply controlled pressure on the flanges of the beam, restoring them to the required straightness. Equipped with high-strength rollers, robust hydraulic cylinders, and an automatic feeding system, the machine ensures fast and precise straightening with minimal manual intervention. It can handle a wide range of beam sizes and thicknesses, making it highly versatile for steel fabrication plants, construction industries, and shipbuilding yards. Detailed Description of H-Beam Straightening Machine The H-Beam Straightening Machine is a specialized piece of equipment used in steel structure fabrication workshops to correct the deformations that occur in the flanges of H-beams, I-beams, and similar structural profiles during the welding process. When beams are manufactured and welded, uneven heating and cooling create internal stresses, causing bending, twisting, or warping in the flange areas. These deformations not only affect the dimensional accuracy of the beam but also compromise the structural integrity and ease of assembly. The H- Beam Straightening Machine is designed to eliminate these issues efficiently. This machine operates on either hydraulic or mechanical pressure systems to apply powerful and controlled force through hardened straightening rollers. The rollers press against the deformed beam flanges, gradually correcting them to the required tolerance. The equipment is capable of handling different beam sizes, flange thicknesses, and degrees of deformation, making it highly versatile in modern steel fabrication industrieTo remove the residual deformation caused by welding heat. To restore the flange surface to its correct, parallel position with respect to the web. To enhance overall beam dimensional accuracy and meet engineering standards (such as GB/T, JIS, ASTM). 3. Structural Design and Main Assemblies ? ? A. Main Frame www.weldcutlounge.com info@weldcutlounge.com contact us 8146838333
Faricated from Q235 or Q345 steel for strength and stability. Rigid welded frame design minimizes vibration and deflection during operation. Heavy-duty housing supports all rollers, bearings, and drive systems. ? ? B. Straightening Rollers Core component responsible for applying corrective force. Typically includes: 1 Upper Press Roller (hydraulically driven, applies downward pressure). o 2 Lower Support Rollers (fixed position, provide support to flange). o Rollers are made of forged alloy steel (e.g., 42CrMo), quenched and ground for high hardness (HRC 50–55). Rollers are mounted on heavy-duty bearings for smooth operation and long life. ? ? C. Hydraulic Pressure System Composed of hydraulic cylinders, oil tank, control valves, and pressure gauges. Provides stable, adjustable pressure for flange correction. Allows independent adjustment of left and right flange pressures for asymmetric deformations. Equipped with pressure relief valves for safety. ? ? D. Drive & Transmission System Main drive motor (typically 11–30 kW) powers the rollers via reduction gearbox. Roller rotation speed can be adjusted to match beam size and straightening requirements. Uses frequency inverter (VFD) to control motor speed for smooth acceleration. www.weldcutlounge.com info@weldcutlounge.com contact us 8146838333
? ? E. Control System PLC-based automatic control system (optional manual mode). Control panel includes: Power & start/stop buttons o Pressure indicators o Roller speed adjustment knob o Digital display for flange thickness and pressure o PLC program ensures automatic pressure compensation, improving straightening accuracy. ? ? F. Feeding and Output Rollers Input conveyor transfers beams into the machine smoothly. Output conveyor guides straightened beams out. Both are driven by motorized rollers with synchronized speed to prevent jamming or misalignment. 4. Operating Process 1. Beam Loading Place the welded H-beam on the input roller table. 2. Flange Detection Measure flange thickness and deformation (manually or via sensors). 3. Roller Adjustment Adjust upper roller gap and hydraulic pressure according to flange thickness. 4. Straightening Operation Start the drive motor. As the beam passes between rollers, hydraulic force presses the bent flange downward, restoring its flatness. www.weldcutlounge.com info@weldcutlounge.com contact us 8146838333
5. Continuous Straightening The beam moves at constant speed (0.5–6 m/min). Pressure is automatically maintained for consistent results. 6. Discharge The straightened beam exits onto the output conveyor, ready for quality inspection. 5. Typical Technical Parameters Parameter Standard Model (HYJ-60) Heavy Model (HYJ-80) Beam Height 200 – 1500 mm 200 – 1800 mm Flange Width 150 – 800 mm 200 – 1000 mm Flange Thickness 6 – 60 mm 6 – 80 mm Straightening Speed 0.5 – 6 m/min 0.5 – 6 m/min Roller Diameter 180 mm 200 mm Main Motor Power 18.5 kW 30 kW Hydraulic Motor Power 5.5 kW 7.5 kW Hydraulic Pressure ≤25 MPa ≤30 MPa Control System Manual / PLC PLC automatic Roller Material 42CrMo (HRC 50–55) 42CrMo (HRC 50–55) 6. Key Features ✅ Automatic Hydraulic Pressure Adjustment – Adapts to different flange thicknesses. ✅ Heavy-Duty Rollers – Wear-resistant, high precision, long life. ✅ Dual-Drive Transmission – Ensures uniform straightening force. ✅ PLC Touch Control Panel – Simplifies operation and enhances accuracy. ✅ High Efficiency – Continuous operation with 0.5–6 m/min output speed. www.weldcutlounge.com info@weldcutlounge.com contact us 8146838333
✅ Safety Protection – Emergency stop, overload protection, and pressure relief. ✅ Easy Maintenance – Modular components for quick replacement. 7. Safety and Quality Standards Conforms to: ISO 9001 / CE certification / GB/T 5224 Equipped with: Hydraulic pressure limit valves o Electrical overload protection o Emergency stop system o 9. Integration with H-Beam Production Line The straightening machine is typically integrated into a complete H-beam fabrication line, consisting of: 1. H-beam assembly machine 2. Gantry-type SAW welding machine 3. Flange straightening machine (this unit) 4. Shot blasting machine 5. Painting line All machines can be connected via roller conveyors for continuous, automated production. 10. Applications Steel structure workshops and building frames Shipbuilding and bridge construction Heavy industrial plants www.weldcutlounge.com info@weldcutlounge.com contact us 8146838333
Offshore platforms and towers Power and petrochemical industries Top of Form Bottom of Form www.weldcutlounge.com info@weldcutlounge.com contact us 8146838333
