Electromechanical Round Bending Machine Rollmak ST3 220-20/8

Electromechanical Round Bending Machine Rollmak ST3 220-20/8


Rollmak ST3 is an upgraded 3-roll round bending machine with an asymmetric design, specifically engineered for processing medium-thickness sheet metal. It is a powerful, precise, and versatile machine for thin to medium-gauge bending. Its smooth electric drive, flexible settings, asymmetric rolls, robust steel construction, and support for conical bending make it an ideal solution for professionals in HVAC, tank manufacturing, and mechanical engineering.

Features and Advantages

  • Cone Bending Device: Allows for the fast and accurate production of tapered and conical shapes.

  • Swivel-out Top Roll: The top roll swings out to the side after processing, enabling the convenient removal of finished workpieces.

  • Wire Grooves: Integrated at the ends of the rolls for forming wire-reinforced edges or decorative lines.

  • Handwheel Adjustment: Both the bottom and rear rolls can be quickly and manually adjusted via handwheels.

  • St-52 Steel Body: High-grade steel construction ensures a stable frame and long-term durability.

  • Independent Foot Pedal: Enables the operator to control the roll rotation hands-free, improving safety and handling.

  • Planetary Gear Drive: The electric drive utilizes a planetary gearbox for smooth operation and an extended service life.

  • CE Compliance: Fully meets CE quality and safety standards.

Optional Equipment

  • Digital Position Indicator: Provides a precise readout for the rear roll position.

  • Motorized Bottom Roll Adjustment: Automates the positioning process for increased operator convenience.

  • Two-Speed Motor: Offers a choice between a high-speed production mode and a slower, high-precision bending mode.

  • Variable Rotation Speed: Provides additional flexibility when working with various material types.

  • Extended Shafts: Specifically designed for the installation of profile-bending rollers.

  • Profile Rolls: Specialized rollers for creating unique shapes and geometries.

  • Custom Voltage: Adaptation to non-standard electrical systems.

Technical Specifications

Parameter Value
Working Length 2050 mm
Pre-bending Capacity 6.0 – 7.0 mm
Max. Thickness () 7.0 – 8.0 mm
Roll Diameter 220 mm
Min. Bending Diameter 330 mm
Motor Power 5.5 kW
Dimensions ()
Weight 4000 kg
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