Stretch Levelers

Flatness defects and internal stress can affect material performance, create quality issues and make downstream steel processing more difficult. The stretch levelers by Butech Bliss are designed to correct these problems by applying controlled tension to the material, helping achieve stable, repeatable flatness across different grades, widths and thicknesses.

These hydraulic stretch levelers are engineered around each customer’s production needs, offering a robust solution for steel processors that require reliable performance, consistent quality and long-term operational efficiency.

  • A key element of Butech Bliss stretch levelers is their gripping technology, which holds the material firmly during the leveling cycle and allows controlled tension to be applied with precision.
  • The gripper heads are adapted to each application to distribute force evenly across the strip, helping prevent slippage, marking or unwanted deformation. The systems also incorporate durable and replaceable gripper pads, designed to reduce maintenance effort, support faster product changes and limit production downtime.
  • The hydraulic stretch levelers by Butech Bliss are developed to make demanding leveling operations easier to manage while maintaining high standards of accuracy and repeatability.
  • Through an intuitive HMI, operators can control key process parameters such as tension, elongation and material movement. This makes it easier to adjust the line when processing different material grades, thicknesses or coil dimensions.
  • By combining hydraulic force control, automated setup functions and repeatable operating recipes, these stretch levelers help manufacturers improve productivity while maintaining consistent flatness from coil to coil.
  • In steel processing lines, stretch leveling plays an important role when downstream operations require highly controlled material shape and stress relief. Butech Bliss stretch levelers are suitable for demanding applications such as:
    • Steel service centers processing hot-rolled, cold-rolled, HRPO and coated materials.
    • Automotive and transportation suppliers preparing coils for stamping or forming.
    • Heavy equipment and construction manufacturers working with thick or high-strength materials.
    • Energy, infrastructure and structural steel applications requiring wide or high-tension products.
    • Specialty metal processors handling stainless steel, aluminum or other non-ferrous alloys.
    • High-volume production lines where hydraulic stretch leveling is required for continuous industrial operation.
  • Ideal for continuous industrial duty, stretch levelers support consistent output quality across extended production cycles. The durable system components and controlled operating parameters help reduce wear-related variability while maintaining predictable performance. This level of reliability enables steel manufacturers to meet quality standards without frequent process interruptions.

Sectors Steel mills Service Centers Aluminium

Technologies Roller Leveler

Solutions with this technology

Stretch Leveler FAQs

  • Stretch levelers are commonly used for carbon steel, high-strength steel, stainless steel, aluminum and other non-ferrous materials. They are especially useful when residual stresses, coil shape defects or flatness issues must be corrected before further processing.
  • A hydraulic stretch leveler applies controlled tension and elongation to the material to relieve internal stresses and improve flatness. A roller leveler, by contrast, uses repeated bending through rolls to correct shape defects. Stretch leveling is often selected when a higher level of flatness, stability and shape consistency is required.
  • Yes. The stretch levelers by Butech Bliss are configured according to the specific requirements of each application, including material type, thickness range, strip width, yield strength, line layout and production capacity.
  • The main factors include material grade, maximum width, thickness range, required flatness tolerances, yield strength and production speed. These parameters define the required force capacity, gripper design and overall machine configuration.

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