Haeusler’s HDR series offers 3-roll plate bending of thick plates and small diameters. The HDR series allows for horizontal adjustment of the two bottom rolls independent from one another as well as top roll vertical adjustment through use of pressure loaded cylinders. The HDR system provides variable setting of bending geometry, allowing deformable wall thickness adjustment according to bottom roll position.
The three high-alloy steel rolls feature rotation drives and can be individually angled for cone bending. The top roll is also adjusted by four identical cylinders which push from their piston side while bending. All drives include hydraulic brakes to stop rolls and avoid unexpected plate movement during pre-bending. The HDR series uses long guideways to ensure precise positioning.
Haeusler offers the HDR series in more than 15 different sizes that cover a pre-bending range of wall thickness from 70 mm to 320 mm. Standard sizes can be built with roll lengths of up to 4500 mm, but special designs with roll lengths of up to 8000 mm can be accommodated.
The HDR series includes automatic central grease lubrication and fast reacting overrun brakes to prevent plate slipping. Optional exchangeable rolls may be used to provide even smaller diameter bending. Additional options include plate stops for increased alignment ease and an increased rotational speed of up to 8 m/min.
For more information: https://www.haeusler.com/en/plate-bending-machines/hdr/