ROUNDO Multi-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

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-stength 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
Separate hydraulic motors on the upper and lower rolls on most models.
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
Push button controls and joy-stick controls are utilized
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
Infinitely variable speed control, standard
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
6-directional hydraulically powered Guide Rolls (Models R5S and larger)
4-directional hydraulically powered Guide Rolls (Models R2S to R4S)
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

Pipe²

S & WF
Beams

Channel
(Flanges
In or Out)

Beam On
X-X Axis

Diameter
of
Bending
Rolls

Motor
HP
@ 440V

Weight
(lbs)

Leg Out

Leg In

On Flat

On Edge

M
O
D
E
L

R2S

2� x 2� x 3/8

2� x 2� x 5/16

5 x 1

2� x 3/4
2� x 1

S 5 x 10#

C 5 x 9.0#

---

8-5/8

4.5

2,200

R3S

3 x 3 x 3/8

7 x 3/4

3� x 3/4
3 x 1

S 6 x 17.25#

C 6 x 13.0#

---

8.8

3,600

R4S

4 x 4 x 1/2

4 x 4 x 3/8

7 x 1�

5 x 5/8
4 x 1

S 7 x 20#

C 7 x 14.75#

S 3 x 7.5#

12�

6,100

R5S/R52S

5 x 5 x 1/2

4 x 4 x 1/2

8 x 2

6 x 5/8
5 x 1

W 8 x 21#

C 8 x 22.8#

S 5 x 10#

17.5

10,200

R6S/R62S

6 x 6 x 5/8

5 x 5 x 3/4
!¹6 x 6 x 1/2 ¹

10 x 2

6 x 1�
5 x 1�

W 12 x 35#

C 12 x 30#

W 6 x 16#

16,300

R7S/R72S

6 x 6 x 1

12 x 2�

8 x 1�
6 x 2�

W 14 x 38#

C 15 x 50#

W 8 x 21#

25,700

R8S

8 x 8 x 1

8 x 8 x 3/4

16 x 3

10 x 1�
8 x 2

W 18 x 76#

MC 18 x 58#

W 10 x 33#

44,000

R9S

8 x 8 x 1-1/8

8 x 8 x 1

20 x 3

10 x 2�
8 x 3

W 21 x 93#

MC 18 x 58#

W 12 x 35#

50,000

R10S

8 x 8 x 1-1/8

20 x 3�

10 x 3
8 x 4

W 24 x 104#

MC 18 x 58#

W 12 x 50#

108

60,000

R11S

8 x 8 x 1�

20 x 4

12 x 3
10 x 4

W 27 x 146#

MC 18 x 58#

W 18 x 60#

108

72,000

R13S

8 x 8 x 1�

22 x 4

16 x 2-3/8
12 x 3-1/2

W 36 x 210#

MC 18 x 58#

W 24 x 117#

108

88,000

R15S

8 x 8 x 1�

40 x 6

20 x 5
16 x 8

W 40 x 328#

MC 18 x 58#

W 30 x 132#

108

130,000

Dimensions in inches, unless otherwise noted
All capacities based on ASTM A-36 Steel
Note: Some sections require special tooling and other devices

¹ With special tooling
² Schedule 40 pipe, except Model R10S, which is Schedule 80

Optional Equipment

Special Rolls:

    - Universal Roll Tooling
    - Rolls for rolling to diameters smaller than attainable with standard rolls
    - Rolls for channel and beam leg-out, leg-in, or on-edge
    - Rolls for round, square, and rectangular materials
    - Support Rolls for difficult-to-roll angles leg-out and leg-in
    - Rolls for extrusions and other special shapes

Device for rolling beams and channels on-edge (X-X axis).

Elongated roll shafts for sections too large for standard shafts.

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.

Electronic Digital Readouts for rolls positions. (Models R2S to R72S)

Micro-hydraulic adjustment of the lower rolls.

Joy-stick Controls. (Models R2S to R72S)

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

Special electrics or special operating voltage.

Outboard support with pitch thruster.

Turbo hi-speed roll rotation package.

4-Roll version of any model for rolling special sections.

Internal Mandrel System for structural tubing.

Special shaft diameters to accommodate your existing tooling.

Hydraulic Pushing Roll Device to keep angle and other sections firmly against
the top roll tooling.

Hydraulic turning of the Guide Rolls. (Models R2S, R3S, and R4S)

Powered elevation of the swing-arm console.