Four-Roll Hydraulic Bending Machine

RBD-4HD • RBD-4HL

Our Four-Roll Hydraulic Bending Machine uses 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 sheet metal bending and thousands of reference customers guarantee you first class support in any application or maintenance question. With our optional extras, upgrade your level of automation to raise your production and flexibility. SAE 1550 (CK 45) induction hardened steel rolls resist warping or deformation. Cones easily unload from the machine via the modular top roll. Shipbuilding, tank, and truck industries utilize our machines.

For medium and heavy bending tasks
Solid welded frame construction
High-quality, heavy-duty ball bearings ensure minimum friction and even rotation of the bending rollers
Hydraulic roller is driven by independent drive motors and planetary gearboxes
Planet gears are mounted directly on the rollers, resulting in the transmission of force taking place without loss of force or power
Torsion bars and hydraulic units used simultaneously to consequently ensure maximum machining accuracy and production flexibility

Standard configuration

Overload protection
Hydraulic top and side rolls (3 pcs.)
Digital readout for top and side rolls
Hydraulic closure for easy removal of bent parts
Welded, heavy steel frame
Induction hardened rolls made of SAE 1050 (CK 45) steel
Conical bending device
Automatic lubrication
Electronic/mechanical balancing device
2 bending speeds
Operation 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
Ground and polished rolls
Small top roller for minimum bending radii

Get a quote or call (610) 441-7317

Click here to find out more about our four roll plate rolls from our friends at The Fabricator!

Specifications		RBD-4HD
		2050/20	2050/25	2050/30	2550/16	2550/20	2550/25	2550/30	2550/45	3100/12	3100/16
		6’ x 0.75”	6’ x 1”	6’ x 1.15”	8’ x 0.6”	8’ x 0.75”	8’ x 1”	8’ x 1.15”	8’ x 1.75”	10’ x 0.45”	10’ x 0.6”
Bending length	mm	2050 (80”)			2550 (99”)					3100 (120”)
Bending capacity*	mm	20 (0.75”)	25 (1”)	30 (1.15”)	16 (0.6”)	20 (0.75”)	25 (1”)	30 (1.15”)	45 (1.75”)	12 (0.45”)	16 (0.6”)
Pre-bending capacity*	mm	16 (0.6”)	20 (0.75”)	25 (1”)	12 (0.45”)	16 (0.6”)	20 (0.75”)	25 (1”)	35 (1.35”)	10 (0.4”)	12 (0.45”)
Top & bottom rolls	mm	Ø 280 (11”)	Ø 320 (12.5”)	Ø 350 (13.5”)	Ø 280 (11”)	Ø 320 (12.5”)	Ø 350 (13.5”)	Ø 380 (14.5”)	Ø 460 (18”)	Ø 280 (11”)	Ø 320 (12.5”)
Side rolls	mm	Ø 220 (8.5”)	Ø 240 (9.5”)	Ø 260 (10”)	Ø 220 (8.5”)	Ø 220 (8.5”)	Ø 260 (10”)	Ø 300 (11.5”)	Ø 380 (14.5”)	Ø 220 (8.5”)	Ø 240 (9.5”)
Main motor	kW	15 (20 Hp)	18.5 (25 Hp)	22 (30 Hp)	15 (20 Hp)	18.5 (25 Hp)	22 (30 Hp)	30 (40 Hp)	38.5 (50 Hp)	15 (20 Hp)	18.5 (25 Hp)
Weight	kg	8550 (18,810 lbs)	10240 (22,500 lbs)	11000 (24,200 lbs)	9200 (20,240 lbs)	11000 (24,200 lbs)	13000 (28,600 lbs)	14000 (30,800 lbs)	22500 (49,500 lbs)	10000 (22,000 lbs)	13000 (28,600 lbs)
Item No.		9412140	9412141	9412142	9412143	9412144	9412145	9412146	9412147	9412148	9412149

*The above specifications are subject to change without prior notice. No liability for printing mistakes. Machine may be shown with optional equipment.
** Bending capacities are given for 24 kg/mm2 yielding strength, minimum dia. top roll x 5 (For cone, bending capacities needs to be reduced. Call for details.)

Specifications		RBD-4HD
		3100/20	3100/25	3100/30	3100/45	3100/60	4100/8	4100/12	4100/16	4100/20	4100/40
		10’ x 0.75”	10’ x 1”	10’ x 1.15”	10’ x 1.75”	10’ x 2.35”	13’ x 0.3”	13’ x 0.45”	13’ x 0.6”	13’ x 0.75”	13’ x 1.5”
Bending length	mm	3100 (120”)					4100 (160”)
Bending capacity*	mm	20 (0.75”)	25 (1”)	30 (1.15”)	45 (1.75”)	60 (2.35”)	8 (0.3”)	12 (0.45”)	16 (0.6”)	20 (0.75”)	40 (1.5”)
Pre-bending capacity*	mm	16 (0.6”)	20 (0.75”)	20 (0.75”)	35 (1.3”)	45 (1.75”)	6 (0.25”)	10 (0.4”)	12 (0.45”)	16 (0.6”)	30 (1.15”)
Top & bottom rolls	mm	Ø 350 (13.5”)	Ø 380 (14.5”)	Ø 400 (15.5”)	Ø 500 (19.5”)	Ø 580 (22.5”)	Ø 280 (11”)	Ø 350 (13.5”)	Ø 380 (14.5”)	Ø 400 (15.5”)	Ø 550 (21”)
Side rolls	mm	Ø 260 (10”)	Ø 300 (11.5”)	Ø 300 (11.5”)	Ø 400 (15.5”)	Ø 450 (17.5”)	Ø 220 (8.5”)	Ø 260 (10”)	Ø 300 (11.5”)	Ø 300 (11.5”)	Ø 450 (17.5”)
Main motor	kW	22 (30 Hp)	30 (40 Hp)	38.5 (50 Hp)	45 (60 Hp)	73 (100 Hp)	15 (20 Hp)	22 (30 Hp)	30 (40 Hp)	38.5 (50 Hp)	66 (90 Hp)
Weight	kg	15000 (33,000 lbs)	18000 (39,600 lbs)	20000 (44,000 lbs)	36000 (79,200 lbs)	55000 (121,000 lbs)	13000 (28,600 lbs)	19000 (41,800 lbs)	22000 (48,400 lbs)	25000 (55,000 lbs)	54000 (118,800 lbs)
Item No.		9412150	9412151	9412152	9412153	9412154	9412155	9412156	9412157	9412158	9412159

*The above specifications are subject to change without prior notice. No liability for printing mistakes. Machine may be shown with optional equipment.
** Bending capacities are given for 24 kg/mm2 yielding strength, minimum dia. top roll x 5 (For cone, bending capacities needs to be reduced. Call for details.)

Specifications		RBD-4HD
		6100/8	6100/10	6100/13	6100/20	6100/30
		20’ x 0.31”	20’ x 0.39”	20’ x 0.51”	20’ x 0.78”	20’ x 1.18”
Bending length	mm	6100 (240″)
Bending capacity*	mm	8 (0.31”)	10 (0.39”)	13 (0.51”)	20 (0.78”)	30 (1.18”)
Pre-bending capacity*	mm	6 (0..24”)	8 (0.31”)	10 (0.39”)	16 (0.63”)	25 (0.98”)
Top & bottom rolls	mm	Ø 350 (13.7”)	Ø 380 (14.9”)	Ø 400 (15.74”)	Ø 500 (19.69”)	Ø 620 (24.4”)
Side rolls	mm	Ø 260 (10.23”)	Ø 300 (11.8”)	Ø 300 (11.8”)	Ø 400 (15.74”)	Ø 520 (20.47”)
Main motor	kW	23.5 (32 Hp)	31.5 (42 Hp)	38.5 (53 Hp)	60 (82 Hp)	123 (168.5 Hp)
Weight	kg	24000 (52,922 lbs)	28250 (62,293 lbs)	30000 (66152 lbs)	67500 (148,842 lbs)	88500 (195,149 lbs)

Specifications		RBD-4HL
		1050/8	1550/8	2050/4	2050/8	2050/13	2550/6	2550/13	3100/5	3100/8	3100/10
		3’ x 0.3”	5’ x 0.3”	6’ x 0.15”	6’ x 0.3”	6’ x 0.5”	8’ x 0.25”	8’ x 0.5”	10’ x 0.2”	10’ x 0.3”	10’ x 0.4”
Bending length	mm	1050 (41”)	1550 (60”)	2050 (80”)			2550 (100”)		3100 (120”)
Bending capacity*	mm	8 (0.3”)	8 (0.3”)	4 (0.15”)	8 (0.3”)	13 (0.5”)	6 (0.25”)	13 (0.5”)	5 (0.2”)	8 (0.3”)	10 (0.4”)
Pre-bending capacity*	mm	6 (0.25”)	6 (0.25”)	3 (0.12”)	6 (0.25”)	10 (0.4”)	4 (0.15”)	10 (0.4”)	3 (0.12”)	6 (0.25”)	8 (0.3”)
Top & bottom rolls	mm	Ø 150 (5.85”)	Ø 170/160 (6.5/6.25”)	Ø 150 (5.85”)	Ø 190 (7.25”)	Ø 245 (9.5”)	Ø 190 (7.25”)	Ø 260 (10”)	Ø 190 (7.25”)	Ø 245 (9.5”)	Ø 260 (10”)
Side rolls	mm	Ø 130 (5”)	Ø 150 (5.85”)	Ø 130 (5”)	Ø 150 (5.85”)	Ø 180 (7”)	Ø 150 (5.85”)	Ø 200 (7.8”)	Ø 150 (5.85”)	Ø 180 (7”)	Ø 200 (7.8”)
Main motor	kW	4 (5.5 Hp)	4 (5.5 Hp)	4 (5.5 Hp)	5.5 (7.5 Hp)	7.5 (10 Hp)	5.5 (7.5 Hp)	7.5 (10 Hp)	5.5 (7.5 Hp)	7.5 (10 Hp)	7.5 (10 Hp)
Weight	kg	1850 (4,070 lbs)	2500 (5,500 lbs)	2650 (5,830 lbs)	3500 (7,700 lbs)	5300 (11,660 lbs)	4000 (8,800 lbs)	6740 (14,800 lbs)	4500 (9,900 lbs)	6600 (14,500 lbs)	7480 (16,500 lbs)
Item No.		9412160	9412161	9412162	9412163	9412164	9412165	9412166	9412167	9412168	9412169

*The above specifications are subject to change without prior notice. No liability for printing mistakes. Machine may be shown with optional equipment.
** Bending capacities are given for 24 kg/mm2 yielding strength, minimum dia. top roll x 5 (For cone, bending capacities needs to be reduced. Call for details.)

In-Stock in Pennsylvania:

Machine Capacity Configuration Availability

RBD 3M 12/5 3/16″ x 4′ Standard Immediately

RBD 3M 20/1.5 16 Ga x 6′ Standard Immediately

RBD 3M 15/6 1/4″ x 5′ Standard Immediately

RBD 4H 2050/6 1/4″ x 6′ Standard Immediately

*Stock subject to prior sale. Please call us to confirm: +1 (610) 441-7317

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RBD-4HD • RBD-4HL

Four-Roll Hydraulic Bending Machine