HYDR. SHEET BENDING ROLLS HESSE HRB-4
Four rolls – symmetrical rolls arrangement

The hydraulic sheet bending rolls HESSE HRB-4 are equipped with 4 rolls and thus unite the advantages of machines with asymmetrical and symmetrical rolls arrangement. The sheet metal clamping takes place via feed of the lower roll. Pre-bending and bending feed functions are realized by the independently hydraulically adjustable side rolls whereby also double sided and simultaneous pre-bending works are possible to obtain the shortest possible straight rest piece. The precrowned rolls made of high-tensile carbon tool steel C45 are hardened to HRC 54±4 and mounted on accurate spherical roller bearings which allows minimum bending diameter of 1,2 fold upper roll diameter.


mod. HRB-4 2520


gauge for conical bending
hydraulic drop-end bearing

Standard equipment

• fully hydraulic drive of upper and lower roll
(from 30 mm bending capacity all four rolls)
by planetary gear box
• digital read-out of side rolls position
• hydraulic drop-end bearing
• conical bending device
• hardened rolls
• hydr. side rolls positioning
synchronized by PLC
• hydr. lower roll feed by torsion shaft
• pressure adjustable lower roll
• electric and hydraulic protection
against overload
• moveable control panel
• machine and equipment according
to the CE regulations

Optional equipment

• polished rolls
• variable rolling speed
• hydraulic/mechanic adjustable upper
and lateral supports
• NC control
• CNC control
• oil cooler
• changeable upper roll for small diameters
• material roll table
 

hydr. lower roll feed by torsion shaft

mod. HRB-4 2530 NC with hydraulic adjustable lateral supports

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HESSE+CO Maschinenfabrik GmbH
 IZ NOE-Sued - Straße 4 Objekt 8 - Austria-2351 Wiener Neudorf
Tel. +43/2236/638 70-0 - Fax +43/2236/636 62
office@hesse-maschinen.com