Page 131 - Praxair Productivity Catalog

4-Roll Bending Machines

Contact your Praxair productivity specialist to discuss
a custom-designed turnkey system for your business.

Available Options
STANDARD FEATURES
Induction hardened rolls 56-60 HRC
 Machine frame mono-block weldments in heavy steel plate, NC and CNC-3D CAD controls
electro-welded, stress relieved, and precision machined Cone rolling devices
 Hydraulic pinch adjustment from control station; adjustable Hydraulic overhead & lateral supports
pinch pressure Roll camber compensation system
 3 axis digimatic touch screen programmable control with Hydraulic oil coolers & heaters
redundant push buttons Slotted and/or patterned rollers
 Top and pinch rolls driven via independent hydraulic motor/ Infeed roller tables & more!
planetary reducer units for near 100% effi ciency in torque
transmission to the rolls
 Automatic digital/PLC controlled roll parallelism including 6 on
screen readouts
 Hydraulic powered drop-end actuated from the operator’s
station for rapid part removal.
 Automatic tilt of both lateral rolls from touch panel control
(cone and counter cone rolling directions)
 Energy-saving automatic hydraulic pressure peak control,
with pinch pressure adjusted through the touch screen and a
readout toggle from PSI to BAR per your preference
 Machine controls in 24 VAC low voltage on stable, heavy-duty,
mobile console
 Circumferential safety trip wire guard with 3-way switch
 E-Stops on controls PRS4RHD 4-roll bender shown
 Drop end guard and safety lock-out with optional equipment.

CAPACITY ROLL DIAMETERS
PRS4RHD SERIES LENGTH (FT) POWER (HP) WEIGHT (LBS)
PRE-BENDING ROLLING TOP ROLL
PRS4RHD 5 5 14 GA - 1-1/4 in. 10 GA - 1-1/2 in. 4 in. - 15 in. 6.5 - 48 3,400 - 31,200
PRS4RHD 6 6 16 GA - 1-1/2 in. 14 GA - 1-7/8 in. 4 in. - 18.11 in. 6.5 - 72 3,900 - 55,000
PRS4RHD 8 8 16 GA - 1-3/8 in. 14 GA - 1-3/4 in. 4.33 in. - 18.11 in. 6.5 - 72 4,400 - 54,500

PRS4RHD 10 10 16 GA - 1-1/4 in. 14 GA - 1-1/2 in. 5.11 in. - 18.11 in. 6.5 - 72 5,200 - 66,000
PRS4RHD 12 12 10 GA - 1 in. 9 GA - 1-1/4 in. 8.66 in. - 18.50 in. 12.5 - 72 14,000 - 74,000
PRS4RHD 14 14 10 GA - 7/8 in. 9 GA - 1-1/8 in. 10.24 in. - 19.69 in. 18 - 72 21,000 - 87,000

* Models and specifi cations are indicative of range of standard models. Higher capacity machines and longer, or shorter, lengths on request.
Technical data are approximate and subject to modifi cation without prior notice. Capacities assume yields of 36,000 psi.
Specifi cations subject to change without notice. Consult your Praxair representative when ordering.

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