



In modern metallurgy and machinery manufacturing industries, during the production and deep processing of metal pipes and bars, materials often exhibit problems such as bending, ellipticity, or uneven residual stress after drawing, rolling, or heat treatment. The pipe and bar skew roll straightener is a highly efficient straightening device developed specifically to address these issues. It utilizes multiple sets of skewed straightening rolls to continuously straighten pipes or bars. The straightening rolls are arranged at a certain angle relative to the material's axis. During rotation and advancement, the material undergoes repeated bending and springback, thereby eliminating the original bending and achieving high-precision straightness. It is widely used for straightness correction of steel pipes, stainless steel pipes, alloy bars, electric heating elements, and other products. It can operate continuously and automatically, offering high efficiency and good stability.
Whether it's a high-strength alloy steel bar or a precision stainless steel tube, the quality of the straightening process directly affects the accuracy of subsequent processing and the product's lifespan.
The core of the skew roll straightener lies in its roll shape design and angle configuration.
Rotational motion: The tubes and bars rotate at high speed driven by inclined straightening rollers.
Multiple bending: The material passes through multiple sets of rollers with specific curves (such as hyperboloid rollers) and is subjected to alternating bending stress.
Stress relief: By precisely calculating the reduction amount, the residual stress inside the material is balanced, achieving high-precision straightening over the entire length range.
The height and angle of the rolls are adjustable to meet the needs of various outer diameter specifications .
The use of hyperboloid roll design has a certain effect on improving the surface roughness and roundness of the tube .
Wear-resistant alloy tool steel rolls, 3/6 pieces .
It's easy to use .
Model | XZ01 | XZ02 |
|---|---|---|
| power supply | Triphase 380V, 50Hz, 1.5KW | Triphase 380V, 50Hz, 30KW |
| Tube or bar diameter ( mm ) | Φ 5 ~ Φ 21 | Φ 5 ~ Φ 12 |
| Tube or bar length ( mm ) | Greater than 250 | Greater than 150 |
| Number of pressure rollers ( pcs ) | 3/4/6 | twenty two |
| Dimensions ( L * W * H ) mm | 1300*700*1200 | 1350*1000*1250 |
| Weight ( kgs) | 360 | 800 |
Tube and bar skew Roller straighteners are widely used in the following industries:
Steel pipe and Stainless Steel Pipe manufacturers
Cold-drawn bar and precision bar processing plant
Automotive parts and machinery manufacturing industry
Oil, chemical and energy pipeline sectors
Fabrication of metal materials for building and structure
When selecting a model, it is recommended to focus on the following factors:
Improving yield starts with a high-quality Straightening Machine.
Choosing a high-performance skew roll straightener for tubular and bar materials is not only a solution to material bending problems, but also a crucial step in enhancing a company's core competitiveness. High-quality equipment can reduce scrap rates and save time and costs associated with subsequent grinding or processing.
Looking for a professional tubular rod straightening solution?
We offer a variety of skew roll straighteners and support customized designs to meet the needs of different materials and precision requirements. Please contact our technical experts for the latest equipment quotes and technical drawings.