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CatalogFabrication EquipmentRoll BendersRBD-4HD
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Hydraulic 4-roll bending machine

RBD-4HD








These state-of-the-art hydraulic 4 roll benders use top brand components like Siemens, Rexroth, Bosch, Parker, Atos, Telemechanique, SKF, NSK and FAG to ensure high-quality lifelong performance. Over 50 years of experience in sheetmetal bending and thousands of reference customers will guarantee you first class support in any application or maintenance question. With our optional extras you can upgrade the level of automation, which will raise your production and flexibility. Our machines are widely used in shipbuilding, tank and truck industries. Also in the wind-power sector, food and construction sectors.

  • For medium and heavy bending tasks
  • The frame is of solid welded construction
  • All rollers have high-quality, heavy-duty ball bearings, which ensures minimum friction and even rotation of the bending rollers
  • Hydraulic roller is driven by independent drive motors and planetary gearboxes
  • Because the planet gears are mounted directly on the rollers, the transmission of force takes place without loss of force or power
  • The simultaneous use of torsion bars and hydraulic units ensure maximum machining accuracy and production flexibility

Standard configuration:

Overload protection
Hydraulic driven top and side rolls (3 pcs.)
Digital display for the top and side rolls
Hydraulic closure for easy removal of the curved work pieces
Welded, heavy steel frame
Induction hardened rolls of SAE 1050 steel
Conical bending device
Central lubrication
Electronic / mechanical compensating device
2 bending speeds
Manual

Optional configuration:

NC or CNC control system for bend automation
Central overhead support
Lateral supports
Material feeding
Continuous bending speed
Hydraulic work piece ejector
Grounded & polished rolls
Small top roller for minimum bending radii
Technical specificationsRBD-4HD
2050/202050/252050/302550/162550/202550/252550/302550/453100/123100/16
Bending lengthmm205025503100
Bending capacity*mm20253016202530451216
Bending capacity with pre-bend*mm16202512162025351012
Top & bottom rollersmmØ280Ø320
Ø350
Ø280Ø320
Ø350
Ø380
Ø460
Ø280
Ø320
Side rollersmmØ220
Ø240
Ø260
Ø220
Ø240
Ø260
Ø300
Ø380
Ø220
Ø240
Main motor powerkW16.5
2023.516.52023.531.538.5
16.5
20
Weightkg8550
10750
11500
9200
11750
13000
1730022500
10000
12750
Item-No. 
9412140
9412141
9412142
9412143
9412144
9412145
9412146
9412147
9412148
9412149
Technical specificationsRBD-4HD
3100/203100/253100/303100/453100/604100/84100/124100/164100/204100/40
Bending lengthmm31004100
Bending capacity*mm2025304560812162040

Bending capacity with pre-bend*

mm1620253045610121630
Top & bottom rollersmmØ350
Ø380
Ø400
Ø500
Ø580
Ø280
Ø350
Ø380
Ø400
Ø550
Side rollersmmØ260
Ø300
Ø300
Ø400
Ø480
Ø220
Ø260
Ø300
Ø300
Ø450
Main motor powerkW23.5
31.538.5
45
73
16.5
23.5
31.5
38.5
66
Weightkg15000
18800
20000
43000
55000
13000
19000
22000
23500
54000
Item-No. 
9412150
9412151
9412152
9412153
9412154
9412155
9412156
9412157
9412158
9412159
* bending capacities are given for 24 kg/mmyielding strength, minimum dia. top roll x 5 (for cone bending capacities needs to be reduced, call for details)
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Telephone consultation (Monday - Friday 8.00 am – 5.00 pm)
+49 4321 25 2003-0