Poly-V Photo Eye Controlled Powered Roller Accumulator Curve, Roach Model 796 PRAC

Curved Power Roller Accumulation Conveyor with Motorized Rollers

TYPE: Accumulation Conveyors

MODEL: Roach Model 796 PRAC

The perfect complement to the Model 796 PRA, the Model 796PRAC is a photo eye controlled powered roller accumulator CURVE conveyor. Its motorized rollers drive the conveyor, eliminating drive belts, chains and line shafts.


  • The PRAC Curve is a perfect complement to the Model PRA (straight length)
  • Driven by the same 1.9” powered roller
  • 2.5” tapered tread rollers are connected by the same 3/16” diameter polyurethane belts to the powered roller mounted underneath the tread rollers
  • Like the 796 PRA, the zones in the 796 PRAC are controlled with a photo eye and also need only be active while product is present
  • Lengthwise grooves provide drive by adhesion, and optimizes the contact area, giving increased power transfer
  • Motorized rollers drive the conveyor, eliminating the need for drive belts, chains or lines shafts
  • Divided into accumulation zones; each zone is powered by a motorized roller
  • Roller may be turned off to cause product in the zone to stop
  • Controller's sense product presence and control the accumulation and release of product zone by zone
  • Box and product damages are virtually eliminated with accumulation functionality
  • Available in two configurations:  2 Rib Poly-V Belt or 3 Rib Poly-V Belt
    • 2 Rib Poly-V Belt: 110 lbs. per zone at 60 fpm (maximum capacity)
    • 3 Rib Poly-V Belt: 350 lbs. per zone at 53 fpm (maximum capacity)


  • Manual workstations
  • Robotic palletizers, sorters, and merges
  • Warehousing
  • Distribution
  • Package Conveyance


  • Tread Rollers: 796PRA 1.9" dia x 16 ga. galvanized, model 196G grooved.
    796 PRAC 2-1/2" dia to 1-11/16" dia. x 14 ga. steel tapered rollers, Model 254T
  • Drive Belt: 3/16” dia., polyurethane belts. Nominal 15 lbs. per roller drive.
  • Capacity: 15 lbs. per roller or up to 70 lbs. per zone SPEED: 60 FPM, constant.
  • Roller Centers: 3”
  • Bed: 796 PRA - 7” x 1-3/4” x 12 ga. formed steel channel frame. Rollers set low in frame.
  • Accumulation: Zone singulation operation; 24" zone length; zones are actuated using a photo eye
  • Motor Drive: 796PRA, Driven by 24V DC Powered Roller
      796PRAC, Indirect driven by 24 VDC Powered Roller.  (See drawing in PDF)
  • Bearings: Precision ABEC bearings
  • DC power supply: 24 volt fixed output required


  • Plastic Bed Belting Available
  • Accumulation Zones: 18” and 30” long zones available, depending on roller centers.
  • Floor Supports: Supports, knee braces, casters and polytier supports avail-able. See Conveyor Accessories.
  • Conveyor Speed: Constant speed 34-260 FPM
  • Ceiling Hangers: 5/8” dia. threaded rod with hardware to attach rods to conveyor. Provides 6’ clearance between ceiling and TOR (furnished in place of floor supports). See Conveyor Accessories.
  • Diffuse Photo Eye: Photo eyes mounted below the tread rollers
  • Bed: Control side 7” x 1-3/4” x 12 ga. formed steel channel frame. Rollers set low in frame. Outside channel 5” x 1-3/4” x 10 ga. formed steel channel frame. Rollers set high in frame.

For more information on the Powered Roller Accumulator Curve, Roach Model 796 PRAC please contact a Thomas Conveyor & Equipment Automation Engineer at 844 220 0086 or click on the Contact Us button above.

QUESTIONS? CALL 844-220-0086