PLATE ROLLS
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PLATE BENDING ROLLS and SLIP ROLL MACHINES
American Machine Tools Company is accedited by the Better Business Bureau! Click to verify. We accept credit cards for up to $10,000.

For rolling sheet metal and plate into semi-circles, cylinder shapes or cones.
Tell us what size and type of metal you need to form and the radius to be formed. You will like our price.
Scroll down below to see photos and specifications of many different machines.

Interested in curving your sheet metal or plate? Our 3 roll benders work by pinching the metal between two rolls and curving it as it comes in contact with a back forming roll. This curves the metal workpiece into a cylindrical form, where it is welded together to produce a cylinder. The upper roll is in a fixed position, the lower roll has adjustable movement to perform the gripping function. These are the "pinch" rolls. The third roll (the forming roll) is also adjustable. With a manually opened or hydraulically moved drop hinge, the end of the top shaft is opened to allow removal of the finished work piece, especially a completed tube shape. You may also weld the seam while its still on the machine (ground to part with machine power off).
Note: Without alot of skill, on 3 roll machines, it can be difficult to form metal into tubular shapes smaller than 3 times the upper roll diameter when forming near capacity thickness. 1.5 times the upper roll diameter is often the tightest diameter using thinner and narrower metal. Results vary depending on metal thickness, width, tensile strength and on your level of expertise.

Below is a diagram showing how a plate is formed into a tube with a single (initial) pinch plate rolling machine.
This plate rollng diagram shows how a single (initial) pinch bending roll machine works

Single-pinch (initial-pinch) machines are the most common and may require inserting the workpiece into the machine twice in order to prebend both ends to eliminate flat spots when rolling a full tube shape and to ensure better closure of the seam. To prebend the first end, the operator inserts the plate into the machine, which clamps it and pinches it between the top roll and bottom pinch roll. A rear bending roll, moving diagonally toward the top roll, pushes against the metal to bend the radius. The operator then removes the plate from the bender, rotates the plate 180 degrees to insert the second end into the rolls, then rolls the cylinder to completion. Recommended maximum thickness (or width instead) for prebending is usually 3/4 of the capacity of the machine. Bending thickness can be increased slightly if rolling a narrower width. Consult American Machine Tools Company for advice.

Double pinch pyramid machines can prebend both ends of a plate with a single insertion into the bending machine, for reduction in material handling and time. But they cost more and cannot roll as tight a diameter. The wide opening between the rolls allows heavy plate to be rolled. On double pinch machines, the top roll position is fixed and the two lower rolls move in a straight path or an arc toward the top roll. 4 roll versions can accurately roll metal to tighter diameters and can do it in one pass through because the metal is always held by the pinch roll while the 3rd and 4th rolls take turns curving the metal.

Each pinch roll has digital readout showing roll positionDouble pinch rolls and 4 roll machines are quicker and easier to use, but cost more.

Forming a full tube shape should have little if any gap in the middle of the seam due to the "crowning" of the rolls. Crowning is where the rolls are slightly larger diameter in the middle which compensates for deflection under load. If the crowning is not enough try wrapping and taping a piece of shim stock around the middle of the bending roll to over-compensate for deflection. Crowning has a side effect of causing very thin metal to have a gap at the ends. If a gap occurs, either in the middle or the ends, it can be pulled together using a ratchet strap, come-along, clamps or the vise grips with chain attachment. If you want to roll thick flat bar, pipe, tubing, angle iron or channel into a curve then go to Pipe and Structural Shape Bending machines.

On most of our machines, rolling a sheet metal cone shape can be formed by pre-cutting a flat metal blank with the correct inner and outer radius to form the cone (funnel) shape wanted. Normally the blank is fed on one side so that the inner radius can be slowed or stopped against a cone rolling attachment. The inner radius is supposed to go thru the rolls slower than the outer radius. The bending (forming) roll position should be independently adjusted lower on on the drive side to match the taper of cone. Cones take a lot of time to make. Fabricators usually pracitce with cardboard first. Contact an American Machine Tools sales engineer for more information.

NOTE: Powered roll machines are very dangerous if used carelessly because they can crush fingers, hands, etc. Always keep hands, fingers, hair and clothing clear. Safety guarding or devices such as Light Curtains are recommended for predictable repeat uses. Safety compliance is the users responsibility. Please take it seriously.
*** Click for our Machinery Safety webpage ***.

Capacity increases with soft aluminum and decreases with stainless steel.
Click for chart of tensile strengths for aluminum and stainless steel
(to calculate equivalent machine capacity)

26 gauge
24 ga.
22 ga.
20 ga .
18 ga.
16 ga.
14 ga.
13 ga.
12 ga.
11 ga.
10 ga.
9 ga.
8 ga.
7 ga.
6 gauge
.018"
.024"
.030"
.036"
.048"
.060"
.075"
.090"
.105"
.120"
.135"
.150"
.164"
.180"
.194"
.46mm
.61mm
.76mm
.91mm
1.2mm
1.5mm
1.9mm
2.3mm
2.7mm
3mm
3.4mm
3.8mm
4mm
4.6mm
4.9mm

Thickness Conversion Chart - Sheet Metal Gauge to thickness in inches and metric

Chicago Dreis & Krump
Hand Operated Slip Rolls:
Its hard to make portable slip roll machinery that can out perform Chicago Dreis & Krump. 3 sizes to choose from.
We also offer a little 12 inch long machine with 1 inch diameter rolls from another company for $295.

SR-2420: $750.
24" long x 20 gauge capacity, 1:1 gear ratio, the three rolls are 2 inch diameter, wire bending grooves are for 1/4", 5/16", 3/8" diameter rod, shipping weight: 145 Lbs.

SR-3622: $850.
36" long x 22 gauge capacity, 1:1 gear ratio, the three rolls are 2 inch diameter, wire bending grooves are for 1/4", 5/16", 3/8" diameter rod, shipping weight: 200 Lbs.

SR-5016: $2590. includes the stand
50" long x 16 gauge capacity, 3:1 gear ratio, the three rolls are 3 inch diameter, wire bending grooves are for 5/16", 3/8", 1/2" diameter rod, shipping weight: 530 Lbs.

Chicago Dreis & Krump hand operated Slip Roll machine
SR-2420 / SR-3622

SR5016 slip roll machine

Electric Powered Slip Rolls:

• Rolls are turned, ground, and polished high grade carbon steel.
• Gear driven top roll.
• Front mounted handle to lift upper roll for to remove your parts
• 3 wire grooves for rolling 5/16", 3/8", 1/2" wire diameters.
• Emergency stop bar mounted on front and back
• Removable foot pedal control (not shown in photo).

Click to Request this formal Quote
Working Length: 50" (1270mm)
Rolling Thickness: 16 Gauge = .06" (1.5mm) mild steel
Roll Diameters: 3" (76.20mm)
Minimum Rolling Diameter: 6" (152.40mm)
Motor: 1 HP, 220 volts, 3 phase
Rolling Speed: 22 feet per minute
MODELS AVAILABLE:
(220 volts, 1 or 3 phase machine $3295. from JET - China Mfr)
(220 volts, 3 phase machine $2995. from Birmingham - Taiwan)
(220 volts, 1 phase machine $3995. from a Taiwan Mfr.)
(220 volts, 1 phase machine $2250. from a Chinese Mfr.)
(220 volts, 3 phase machine $1995. from a Chinese Mfr.)
Click to see a JET VIDEO of this machine

Photo of Birmingham Electric Powered Slip Rolls. Foot pedal is included but not shown in the photo.Foot pedal with forward and reverse pedals. Rolls stop when pedal is released.

Birmingham shown above, JET is shown below

Jet Electric Slip Roll Machine. Foot pedal with forward and reverse pedals. Rolls stop when pedal is released.

GMC SINGLE PINCH BENDING ROLLS:

• A lot of rolling ability for very little money
• 3/8", 1/2" and 5/8" grooves at one end of rolls allow rolling of wire, round rod or beaded sheet metal
• Double foot pedals for forward and reverse
• Machine stops when foot pedal is released
• Adjustable cone roller attachment included
• Manual Handwheel for pinch roll adjustment
• Manual Handwheel for bending roll adjustment
• Optional push button electric bending roll adjustment with digital readout is available at extra cost
• Optional orange metal guide cover available for extra cost
• Good lower cost machine for low volume use
• Made in Taiwan

Machine
Capacity
Dia of
Rolls
Choose machine to request a quote for
PBR0412
48" x 12 gauge
3.5"
Click to request this Quote
PBR0418
48" x 7 gauge
4.75"
Click to request this Quote
PBR0425
48" x 1/4
5.75"
Click to request this Quote
PBR0510
60" X 10 gauge
4.75"
Click to request this Quote
PBR0610
80" x 10 gauge
5"
Click to request this Quote
PBR0810
98" x 10 gauge
6"
Click to request this Quote
PBR1010
120" x 10 gauge
6.7"
Click to request this Quote
Plate bending roll photoFoot pedal with forward and reverse pedals. Rolls stop when pedal is released.


Top roll swings open
Photo shows how top roll swings open
Photo shows grooves to roll round rod and roller to help make cones
Photo shows cone former and 3 grooves
Digital Readout of bending roll position to help repeat the same settings
Photo shows optional Digital Readout

BIRMINGHAM 3-ROLL SINGLE-PINCH HYDRAULIC PLATE BENDING ROLLS:
All 3 rolls driven hydraulically. Crowned alloy steel rolls. Foot control (not shown) with forward and reverse. Bending roll is hydraulically powered up and down with digital readout showing position. Bending roll cylinders adjust in synch or independently to help if making cones. Optional custom made attachment helps forming of cone shapes. Good medium use machine made in Taiwan.
Click to see a VIDEO of this Bending Roll

Machine
Capacity
Diameter
of Rolls
Click below to request a quote for a machine
R-0440H
51" X 8 gauge
4.75"
Click for this Quote
R-0535H
61" x 10 gauge
4.75"
Click for this Quote
R-0625H
80" x 12 gauge
4.75"
Click for this Quote
R-0465H
51" X 1/4
5.87"
Click for this Quote
R-0545H
61" x 3/16
5.87"
Click for this Quote
R-0640H
80" x 8 gauge
5.87"
Click for this Quote
R-0480H
51" X 5/16"
7"
Click for this Quote
R-0570H
61" x 9/32"(.28)
7"
Click for this Quote
R-0650H
80" x 6 gauge
7"
Click for this Quote
R-0830H
100" x 1/8
8"
Click for this Quote
R-0845H
100" x 3/16"
8"
Click for this Quote

Photo of Birmingham intial pinch sheet metal plate rolling machine

View of the foot pedal and the electrical cabinet.  Foot pedal stand has push buttons and forward and reverse pedals. Rolls stop when pedal is released.

1. Electrical control cabinet.
2. Photo shows moveable push button console with forward and reverse foot pedals. Rolls stop when pedal is released.

Top roll swivel out mechanism

1. Photo shows top roll being swiveled out (for removing a completely formed tube).
2. Bending roll is moved by hydraulic cylinders via push button controls.
3. Digital readout indicates bending roll position to help you make repeat parts.

American Machine Tools Corp. is an authorized North American distributor for Chicago Dreis & Krump Hand Brakes, Box and Pan brakes for bending sheet metal

CHICAGO DREIS & KRUMP
3-ROLL SINGLE PINCH HYDRAULIC PLATE BENDING ROLLS:

Hydraulic powered bending roll adjustment.
• Push button GO-TO Positioning of bending roll with Digital Readout for easy repeat parts.
• Push button Hydraulic powered pinch roll adjustment.
• Push button Hydraulic powered opening of top roll for finished part removal.
• Hydraulic powered tilting of bending roll.
• Forged steel rolls hardened to RC45.
• Cone forming attachment included.
• Push button pendant control.
• Spherical roller bearings on all 3 roll shafts.
• Heavy duty reinforced welded steel frame.
• Emergency stop cable around the machine.
• Keyed main on-off switch.
• Good machine for frequent use.

Machine Capacity
Dia. of Rolls
Click below to request a quote
for a machine
IPR 4075 14 gauge x 50"
3.1"
Click for Quote
IPR 4120 11 gauge x 50"
3.9"
Click for Quote
IPR 4160 9 gauge x 50"
4.7"
Click for Quote
IPR 4250 1/4 x 50"
6.3"
Click for Quote
IPR 4375 3/8 x 50"
7"
Click for Quote
IPR 4560 9/16 x 50"
7.9"
Click for Quote
IPR 5060 16 gauge x 61"
3.1"
Click for Quote
IPR 5090 13 gauge x 61"
3.9"
Click for Quote
IPR 5125 1/8 x 61"
4.7"
Click for Quote
IPR 5250 1/4 x 61"
6.3"
Click for Quote
IPR 5312 5/16 x 61"
7"
Click for Quote
IPR 5375 3/8" x 61"
7.9"
Click for Quote
IPR 6075 14 gauge x 72"
4.7"
Click for Quote
IPR 6187 3/16 x 72"
6.3"
Click for Quote
IPR 6250 1/4 x 72"
7"
Click for Quote
IPR 6375 3/8 x 72"
7.9"
Click for Quote
IPR 8125 1/8 x 96"
6.3"
Click for Quote
IPR 8187 3/16 x 96"
7"
Click for Quote
IPR 8250 1/4 x 96"
7.9"
Click for Quote
IPR10160 9 gauge x 120"
7"
Click for Quote

All push button operation! The lower pinch roll has our special hydraulic powered "quick gap set" which is a real time saver for metal thickness set up. The pinch roll is also easily tiltable for cone rolling. An adjustable position attachment for making cones is included. Allows for both the stop-start-adjust method or the vice grip holding method of cone rolling. Push button hydraulic opening of the top roll bearing assembly for easy finished part removal. As with all CHICAGO bending rolls, the frames are made of extra heavy welded steel construction. The rolls are made from forged steel and heat treated to RC45. Heavy duty spherical roller bearings on all three rolls minimize friction loss. The rear bending roll is equipped with a GOTO LED digital readout indicating its position for accurate repeat forming. Positioning of the rear bending roll is done hydraulically via push buttons and allows the operator to tilt it for cone forming. An emergency stop button and keylock on/off power switch are centrally located on the control panel. Excellent machine for frequent use.

CLICK TO WATCH A VIDEO

Photo of Pendent with forward / reverse buttons Picture shows hydraulic powered opening of roll end
Photo of control panel with digital readout showing bending roll position

BIRMINGHAM 3-ROLL DOUBLE-PINCH HYDRAULIC PLATE BENDING ROLL MACHINE:

Machine Capacity
Dia. of Rolls
Click below to request a quote
for a machine
RH-0506 61" x 1/4
8"
Click for Quote
RH-0606 80" x 1/4
8"
Click for Quote
RH-0805 100" x 6 gauge
8"
Click for Quote
RH-1004
120" x 3/16
8"
Click for Quote
RH-0508 61" x 5/16"
9"
Click for Quote
RH-0608 80" x 5/16"
9"
Click for Quote
RH-0806 100" x 1/4"
9"
Click for Quote
RH-1005 120" x 6 gauge
9"
Click for Quote
RH-0510 61" x 3/8"
10"
Click for Quote
RH-0610 80" x 3/8"
10"
Click for Quote
RH-0808 100" x 5/16"
10"
Click for Quote
RH-1006 120" x 1/4"
10"
Click for Quote
RH-0613 80" x 1/2"
11"
Click for Quote
RH-0810 100" x 3/8"
11"
Click for Quote
RH-1008 120" x 5/16"
11"
Click for Quote
RH-0616 80" x 5/8"
12.25"
Click for Quote
RH-0813 100" x 1/2"
12.25"
Click for Quote
RH-1010 120" x 3/8"
12.25"
Click for Quote

Photo of Birmingham double pinch sheet metal plate rolling machine

• Push button control panel (not shown in photo above)
• All 3 rolls hydraulically driven independently.
• Digital Readouts of 2 lower roll positions.
• Hardened and ground alloy steel rolls.
• Rolls have pressure compensating camber.
• Sealed spherical roller bearings.
• Hydraulic powered bending roll adjustment.
• Digital Readout Positioning of bending roll.
• Push button Hydraulic powered pinch roll adjustment.
• Push button Hydraulic powered opening of top roll for finished part removal.
• Spherical roller bearings on all 3 roll shafts.
• Heavy duty reinforced welded steel frame.
• Emergency stop cable around the machine.
• Optional Cone Bending attachment available.
• Optional Infinitely variable rolling speeds availabl
e
CLICK TO WATCH A SHORT VIDEO
CLICK TO WATCH A LONG VIDEO

Heavy duty drop end is tilted hydraulically at the outboard end of the top roll journal for easy removal of your finished part.
Plate Bending 4 Roll Machine manufactured by Akyapak distributed by American Machine Tools Company

AKYAPAK AHS 4-Roll Plate Roll Machines

View our huge selection of Akyapak AHS 4 Roll Plate Rolls. Please find the size you are interested in below based on the length and pre-bend thickness then click the model number to request a quote. We will send you a formal quotation with prices and complete information within 72 hours.

The Akyapak Company manufactures 4 rolls hydraulic plate bending machines with capacity in thickness from from 14 gauge to 6 inches thick and widths from 20 inches to 40 feet (2 mm to 150 mm and in width from 500 mm to 12000 mm)

Productive and Reliable

As well as being reliable, AHS increases productivity with its high speed rolling ability and it overcomes the most challenging bends thanks to its ease of use. Since the plate is pinched during rolling, unwanted skidding and slipping of your material is prevented.

In AHS 4-Roll Plate Rolling Machines, one of the side rolls can be used as a squaring roll, thus the plate can be easily and precisely aligned along the roll across the input direction.

Less Flat Ends with a Single Pass

In AHS 4-Roll Machines, it is possible to achieve a full cylinder in a single pass because the metal can be pinched with the lower-roll during pre-bending and bending. AHS model allows for precise pinching of the plate between upper and lower rolls.

STANDARD EQUIPMENT:
• Cone bending device
Induction hardened rolls
Digital display for side rolls
Fully welded steel (St-52) construction body
Separate moving control panel
Two rolling speeds
Electro-hydraulic calibration
All rolls are mounted in roller spherical roller bearings
Safety equipment around the machine
Central rolls are driven by hydraulic motors and planetary gearboxes
Certified by CE, ISO9001 2008, TSEK and TURQUM

OPTIONS AVAILABLE:
Central and side supports to prevent sagging of huge material
Variable speed of rotation
Material feeding table with various features Interchangeable top roll
Oil cooling system
Driven side rolls
Automatic material ejection equipment
Automatic loading and unloading system
Deflection compensating system
Motors in variable voltage and frequency
NC Control for easy repeat work
CNC Control for production work

Click the Model to Request a Price
Working Length (feet)
Maximum Thickness (inches)
Pre-Bend Thickness
(inches)
Top Roll Diameter (inches)
Bottom Roll Diameter (inches)
Side Roll Diameter (inches)
Motor Power
(HP)
Weight
(Lbs.)
5
1/4
8 ga.
5.5
5.5
4.7
3
4.409
5
9/32
6 ga.
6.3
5.5
4.7
3
4.630
5
3/8
5/16
7.5
6.7
5.9
4
4.453
6
8 ga.
14 ga.
5.5
5.5
4.7
3
4.938
6
1/4
8 ga.
6.3
5.5
4.7
3
5.181
6
5/16
1/4
7.5
6.7
5.9
4
7.606
6
3/8
5/16
8.3
7.5
6.7
10
9.700
6
1/2
3/8
9.1
8.3
7.5
10
10.472
6
5/8
1/2
10.6
9.8
8.3
15
12.897
6
13/16
5/8
11.8
10.6
8.3
20
15.212
6
1
13/16
13.0
11.8
9.4
20
20.106
6
1-3/16
1
14.2
13.0
9.8
25
25.906
6
1-9/16
1-3/16
15.4
14.2
11.8
30
37.920
6
1-3/4
1-3/8
16.9
15.4
13.0
40
54.564
6
2
1-9/16
18.1
16.5
14.2
50
55.116
8
1/4
8 ga.
7.5
6.7
5.9
4
7.937
8
5/16
1/4
8.3
7.5
6.7
10
10.582
8
3/8
5/16
9.1
8.3
7.5
10
11.773
8
1/2
3/8
10.6
9.8
8.3
15
14.991
8
5/8
1/2
11.8
10.6
8.3
15
17.857
8
13/16
5/8
13.0
11.8
9.4
20
20.944
8
1
13/16
14.2
13.0
9.8
25
26.015
8
1-3/16
1
15.4
14.2
11.8
30
34.833
8
1-9/16
1-3/16
16.9
15.4
13.0
40
49.163
8
1-3/4
1-3/8
18.1
16.5
14.2
40
62.832
8
2
1-9/16
20.1
18.1
15.4
60
67.682
8
2-3/8
2
21.3
20.1
17.3
74
88.185
10
1/4
8 ga.
8.3
7.5
6.7
10
11.905
10
5/16
1/4
9.1
8.3
7.5
10
12.853
10
3/8
5/16
10.6
9.8
8.3
15
17.086
10
1/2
3/8
11.8
10.6
8.3
15
19.401
10
5/8
1/2
13.0
11.8
9.4
15
23.369
10
13/16
5/8
14.2
13.0
9.8
20
26.632
10
1
13/16
15.4
14.2
11.8
25
37.699
10
1-3/8
1-1/8
16.9
15.4
13.0
30
49.780
10
1-3/8
1-3/16
18.1
16.1
13.4
30
66.690
10
1-9/16
1-1/4
18.1
16.5
14.2
40
66.756
10
1-3/4
1-3/8
18.9
17.3
15.0
40
69.446
10
1-3/4
1-3/8
20.1
18.1
15.4
60
73.855
10
2
1-9/16
21.3
20.1
17.3
74
88.185
13 ft. 3"
1/4
8 ga.
10.6
9.8
8.3
10.1
19.621
13 ft. 3"
5/16
1/4
11.8
10.6
8.3
10.1
21.892
13 ft. 3"
3/8
5/16
13.0
11.8
9.4
10.1
32.893
13 ft. 3"
1/2
3/8
14.2
13.0
9.8
14.8
35.274
13 ft. 3"
5/8
1/2
15.4
14.2
11.8
20.1
44.313
13 ft. 3"
13/16
5/8
16.9
15.4
13.0
24.8
53.352
13 ft. 3"
1
13/16
18.1
16.5
14.2
29.5
75.839
13 ft. 3"
1-3/16
1
20.1
18.1
15.4
40.2
85.098
13 ft. 3"
1-3/8
1-1/8
21.3
20.1
17.3
49.6
106.042
13 ft. 3"
1-9/16
1-1/4
22.8
21.3
18.1
60.3
113.318
13 ft. 3"
2
1-9/16
24.8
23.6
21.7
60.3
141.537
16 ft. 6"
3/8
5/16
14.2
13.0
9.8
14.8
49.604
16 ft. 6"
1/2
3/8
15.4
14.2
11.8
14.8
50.045
16 ft. 6"
5/8
1/2
16.5
15.4
13.0
20.1
65.036
16 ft. 6"
13/16
5/8
18.1
16.5
14.2
24.8
86.421
16 ft. 6"
1
13/16
20.1
18.1
15.4
40.2
95.901
16 ft. 6"
1-3/16
1
22.0
20.5
17.3
49.6
118.609
16 ft. 6"
1-3/4
1-7/16
24.8
23.6
20.5
60.3
159.174
16 ft. 6"
2-3/16
1-3/4
28.3
26.8
23.6
73.8
197.755
20
5/16
1/4
14.2
13.0
9.8
14.8
47.620
20
3/8
5/16
15.4
14.2
11.8
14.8
55.667
20
1/2
3/8
16.9
15.4
13.0
20.1
72.753
20
5/8
1/2
18.1
16.5
14.2
24.8
95.901
20
13/16
5/8
20.1
18.1
15.4
40.2
106.924
20
1
13/16
22.0
20.5
17.3
49.6
132.939
20
1-9/16
1-1/8
25.6
24.0
20.5
73.8
163.583
20
2
1-7/16
29.5
27.6
22.8
100.6
216.000

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American Machine Tools Corp.
5866 Northwest Hwy
Chicago IL 60631 USA

Phone: 773-334-5000
Fax: 773-442-0314

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American Machine Tools Corp.

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