Zero Pressure Accumulation Conveyor Systems.
ACSI ZPA conveyors let cartons, totes, cases, and compatible pallets queue in controlled zones without product-to-product pressure.
Compare ACSI Zero Pressure Accumulation Models.
When a zone is occupied, the upstream zone stops completely. The result is controlled product flow without pressure buildup between adjacent loads.
Motorized Roller 24VDC Zero Pressure
24VDC brushless MDR technology. Energy efficient, quiet, simple wiring. The modern ZPA standard.
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Belt Driven Sensor Roller Zero Pressure
1.9″ belt driven sensor roller controlled air operated zero pressure accumulation.
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Belt Driven Photo Eye Zero Pressure
1.9″ belt driven live roller. Air operated photo eye controlled zero pressure.
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Line Shaft Photo Eye Zero Pressure
Line shaft driven with air operated photo eye controlled zero pressure.
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Chain Driven Photo Eye Zero Pressure (Med Duty)
2″ roller chain driven, photo eye controlled air operated zero pressure.
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Sensor Roller Zero Pressure Pallet (Heavy Duty)
2.5″ chain driven, sensor roller controlled pallet zero pressure.
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Photo Eye Zero Pressure Pallet (Heavy Duty)
2.5″ chain driven, photo eye controlled pallet zero pressure.
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Air Operated Sensor Roller Pallet (Heavy Duty)
2.5″ chain driven, air operated sensor roller pallet accumulation.
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Air Operated Photo Eye Pallet (Heavy Duty)
2.5″ chain driven, air operated photo eye pallet accumulation.
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Drag Chain Photo Eye Controlled Accumulating
Drag chain pallet accumulation. Air operated photo eye controlled pallet staging.
View Specs →Compare Zero-Pressure Accumulation.
Zero-pressure accumulation, also called ZPA, is used when cartons, totes, cases, pallets, or unit loads must queue without damaging contact pressure.
| Application | Best ACSI Family | Why It Fits | Related Search Terms |
|---|---|---|---|
| Cartons / totes | 190MRA, 190ZPA, 190ABE, 190LSE | Zone control protects lighter packages, cartons, totes, and cases from line pressure. | zero pressure accumulation conveyor, ZPA conveyor, MDR conveyor. |
| 24VDC MDR | 190MRA | Motorized driven roller technology provides quiet, efficient zero-pressure accumulation. | 24VDC MDR conveyor, motorized roller conveyor. |
| Medium-duty chain-driven accumulation | 22ACDE | Air-operated chain-driven live roller accumulation for medium-duty positive-drive applications. | CDLR accumulation conveyor, photo eye accumulation conveyor. |
| Pallet accumulation | 251CDA, 251CDE, 251ACDA, 251ACDE, DCE | Heavy-duty pallet accumulation systems for controlled queuing and staging. | pallet accumulation conveyor, zero pressure pallet conveyor. |
Zero-Pressure Accumulation Questions.
Zero-pressure accumulation stops an occupied zone so upstream products queue without pushing against each other. It is used to reduce product damage and control flow.
ZPA keeps products separated with no contact pressure, while minimum-pressure accumulation allows controlled light contact and can be a more economical option when product damage risk is low.
Yes. ACSI manufactures pallet accumulation conveyor models for heavier loads, including air-operated and photo-eye controlled systems.
MDR, or motorized driven roller conveyor, is often considered for quieter, energy-efficient, modular accumulation of cartons, totes, and cases.
Choose the Right ZPA Conveyor.
Share the product, rate, zone length, controls, and layout requirements. ACSI manufactures the equipment, and our distributors provide system integration and installation.