Zero Pressure Accumulation Conveyor

zero pressure accumulation conveyor

Zero Pressure Accumulation Conveyor is used for accumulating cartons on a conveyor.  This conveyor is photoeye controlled and air operated zones. No mechanical sensor rollers are used.

Specs and Features

Driving Belt – Black PVC 120 belt.

Bed – Roller bed width between frames, 15″, 21″, 27″, 33″, and 39″.  7″ x 1-1/2″ x 12 gauge powder painted formed steel channel frame, bolted together with butt couplings and floor supports.  Frame sections are 10′ 0″ and 5′ 0″ long.

Tread Rollers – 1.9″ diameter x 16 gauge galvanized steel rollers spaced on 3″ or 6″ centers.  Safety pop-out design prevents damage to product or harm to personnel if caught between belt and tread rollers.

Pressure Rollers- 1.9″ diameter x 16 gauge galvanized steel rollers with 7/16″ hex shaft spaced on 6″ and 12″ centers.  Raised by air to drive tread rollers, lowered when sensing device is activated.

Sensing Device - NEMA 1 photoelectric sensor in each zone detects presence of product and activates accumulation feature in the trailing zone if upstream zone is occupied.

Power Supply – 120 VAC power supply controls accumulation feature with 24 VDC output.

Power supply will control 50 accumulation zones.

Air Requirements – Operating pressure is 20-35 psi on main trunk line.

Accumulation Zones – 24″, 30″, or 36″ long, air operated.  Conveyor frame lengths change with zone lengths.  NOTE:  Zone length must be evenly divisible by roller centers.

Filter/Regulator – Supplied loose for mounting to conveyor side frame, with 3/8″ NPT ports.

35 to 40 psi recommended operating pressure with free air consumption of .0062 cu. ft. per sensor operation.

Guard Rails – 1-1/2″ x 1-1/2″ x 12 gauge galvanized angle guard rails, both sides.

NOTE:  Product contact with guard rails will affect product flow.

Tail Pulley – 4″ diameter crowned with 1-3/16″ shaft.

Drive Pulley – 8″ diameter crowned and fully lagged with 1-7/16″ diameter shaft.

Located at in feed end of conveyor.

Snub Roller – 2-1/2″ diameter adjustable, located directly behind drive pulley.

2″ diameter at each end directly behind terminal pulleys

Return Idlers – 1.9″ diameter adjustable on 10’0″ centers.

Floor Supports – 31-1/2″ to 45-1/2″ adjustable from floor to top of rollers.

One support supplied at each end of conveyor and at each bed joint.

Take-Up – Screw type take-up located at end of conveyor to maintain belt tension.

12″ of belt take-up provided.