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Top Features

  • 500 Tonne Drive/Idler Roll Set Load-Carrying Capacity
  • 500 Tonne Drive Roll Load-Turning Capacity
  • 1250mm to 7500mm Vessel Diameter Capacity

Red-D-Arc’s RDA CR500 CE rotators feature all-fabricated-steel base construction with wheel carriages that can be manually positioned to accommodate vessels of varying diameters around a constant centre-line.

Product Details


Model: RDA CR500 CE rotator set (drive and idler)
Load Carrying Capacity: Drive: 250 tonnes maximum
Idler: 250 tonnes maximum
Set: 500 tonnes maximum
Rotation Capacity: Drive Roll: 500 tonnes maximum
Wheel Centre Distance: 1400, 2160, 3340 mm
Vessel Diameter Capacity: 1250 mm to 7500 mm
Rotation Speed Range: 100 to 1050 mm/min
Tyre Type: Polyurethane, A95 durometer rating
Wheel Size: 860 mm diameter x 686 mm wide
Five Function Control: Push Button Pendant, 20 m cable (forward/stop/reverse/speed control/emergency stop)
Rotation Drive Motors: 2 x 7.5 kW with fan cooling
Primary Input Power: 380 to 480 V, 3 phase, 50/60 Hz
Input Current at Rated Load: 29.9 A
Weight: Drive: 14,000 kg
Idler: 12,000 kg
Control Box Ingress Protection Rating: IP65
Control Box Electrical Certification: UL508
Loading Capacity Certification: UL2011
Product specifications and availability may vary by country

Additional Features

Vessel rotation is via a two-motor, two-wheel-drive system which eliminates the need for torque bars. Drive motors are inverter-controlled variable-frequency AC-type with fan cooling and are fully enclosed for trouble-free operation. Double reduction worm and wheel gearboxes are used for enhanced durability and extended overhaul intervals. Drive and idler wheel shafts are housed in deep-groove-type roller bearings and gearboxes are of aluminum/bronze construction. Both the drive roll and idler roll have forklift slots built into the frames for easy maneuverability. Control boxes have IP65-rated enclosures and utilize variable-frequency AC-control electrical systems with full UL and CE certification. In addition, all our conventional turning rolls have been tested and certified by UL to establish safe working loads - a first in the weld automation industry.

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Airgas, an Air Liquide company, is the nation's leading single-source supplier of gases, welding and safety products. Known locally nationwide, our distribution network serves more than one million customers of all sizes with a broad offering of top-quality products and unmatched expertise.