ROUNDO 2-directional Angle Bending Rolls

When you compare a ROUNDO Angle Bending Roll
to the competition, you get:

Heaviest Frame Components - for added strength and reliability

Largest Diameter Roll Shafts - to minimize deflection, improving bending results

Largest Roll Shaft Bearings - for greatest efficiency and longest life

Highest Drive Torque - makes easy work of even the heaviest sections

Greatest Bending Roll Force - generated by the rolls,
providing the largest section modulus capacity

Most Powerful Guide Rolls - to efficiently take the twist out of the heaviest sections

ROUNDO Model R4H

Construction:

Welded steel frame from heaviest components of any competitive machine for added strength and rigidity
Only machine in the industry with stress-relieved frames
Largest diameter roll shafts of any comparable machine, made from high-strength chrome-nickel steel, journalled in SKF spherical roller bearings
Three-roll double-pinch (pinch-pyramid) design -
the choice of the industry!

Drive System:

All three bending rolls are driven at all times
Greatest drive torque of any comparable machine
Infinitely variable rotation speeds
(Models R4H, R5, R6 only)
Automatic compensation for the difference in surface speeds of the inner and outer circumference of the section being rolled via torque limiter

Controls:

Operating controls conveniently mounted in a portable control box on most models
Controls designed and located to enable the operator to stand at the position
best suited for viewing and safety during bending

Bending Roll - Rotation and Adjustment:

Two lower rolls individually and hydraulically adjusted by hydraulic cylinders
More bending roll power generated by the three rolls than any comparable machine
All three rolls are driven regardless of their adjustment position
Electronic Digital Readouts or Dial Indicators for the position of the rolls

Guide Rolls:

Largest, most powerful Guide Rolls of any machines, to take the twist out of the most massive sections
Hardened steel Guide Rolls, including "leg-in" guide rolls, standard

Capacities and Specifications
Click on Models below to see photo of machine		Angle Iron		Flat Iron		I Beam & Channel *	Pipe * (Schedule 40)	Diameter of Bending Rolls	Motor HP @ 440V	Rolling Speed (FPM)	Weight (lbs)
Click on Models below to see photo of machine		Leg Out	Leg In	On Flat	On Edge	I Beam & Channel *	Pipe * (Schedule 40)	Diameter of Bending Rolls	Motor HP @ 440V	Rolling Speed (FPM)	Weight (lbs)
M O D E L	R1	2 x 2 x 3/16	2 x 2 x 3/16	5/8 x 4	3/8 x 2	3	1-1/2	6-7/8	2.5	24	1500
	R2	2 x 2 x 5/16	2 x 2 x 1/4	5/8 x 6	1/2 x 2-1/4	4	2	7-1/2	4	28	1765
	R3	3 x 3 x 5/16	2� x 2� x 5/16	3/4 x 8	5/8 x 3	5	2-1/2	9	5	30	2800
	R4M	3� x 3� x 3/8	3 x 3 x 3/8	1-3/16 x 8	3/4 x 4	6	3	11	9	23	5300
	R4H	3� x 3� x 3/8	3 x 3 x 3/8	1-3/16 x 8	3/4 x 4	6	3	11	9	0 - 23	5300
	R5	4� x 4� x 1/2	4 x 4 x 3/8	1-3/16 x 10	3/4 x 5	8	4	14-1/4	12	0 - 23	7700
	R6	5 x 5 x 5/8	5 x 5 x 1/2	1-1/2 x 10	1-1/4 x 5	12	6	17-3/8	17.5	0 - 23	11600

Dimensions in inches, unless otherwise noted
All capacities based on ASTM A-36 Steel

* With Special Rolls

Optional Equipment

Elongated roll shafts for sections too large for standard shafts.

Special Rolls:

    - Rolls for rolling to diameters smaller than attainable with standard rolls
    - Rolls for channel and beam leg-out and leg-in
    - Rolls for round, square, and rectangular materials
    - Support Rolls for difficult-to-roll angles leg-out and leg-in
    - Rolls for extrusions and other shapes not shown in diagrams or specs
    - Rolls for joggling the ends of cylinders

Outboard support device for maintaining the position of the cylinder
when joggling the ends.

Outboard support device to support rolled material, especially useful when
rolling coils. Includes device to set the desired pitch.

Device for rolling beam or channel on-edge. (Model R6 only)

Device for spiralling or coiling pipe, tube, or flat bar.

Calibrating device for accurate spiralling, coiling, or repetitive work.

Half-pipe and other sectional forming and rolling attachments and tooling.

Full hydraulic drive on Models R2 and R3.

Electronic digital readouts for rolls positions.

Micro-hydraulic adjustment of the lower rolls.

Electronic variable speed control for Models R4H, R5, and R6.

Electronic rolls positioning stop system.

Manual or hydraulic "pushing roll" to maximize control of the material
under the top roll.

Ps/R-wCNC Controls, with up to 12-axes capability.

Special electrics or special operating voltage.