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400KG Manual Stacker

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Light duty manual pallet stacker designed for efficient pallet lifting and stacking up to 400kg

400kg Light Duty Manual Pallet Stacker with Forks

Adjustable Fork Geometry: Features a 235-500mm (9.3-19.7 in) fork width range to accommodate diverse skid sizes and non-standard loads.
Optimized Hydraulic Cycle: Achieves maximum lift height in 35 to 74 strokes (model dependent), minimizing operator fatigue during repetitive stacking.
Ultra-Compact Footprint: The 590mm (23.2 in) overall width and 1040mm (40.9 in) length allow seamless navigation through standard doorways and confined aisles.
Integrated Overload Protection: Hydraulic valve system automatically engages to prevent lifting loads exceeding the 400kg (880 lbs) rated safety limit.

The PJ Series Manual Pallet Stacker is a precision-engineered hydraulic work positioner designed for light-duty material handling in workshops, retail backrooms, and server labs. With a certified Safe Working Load (SWL) of 400kg (880 lbs), this unit effectively bridges the operational gap between a standard pallet truck and a full-sized forklift.

The chassis is constructed from high-grade steel with a net weight ranging from 70kg to 95kg (154-209 lbs), providing a low center of gravity for stable lifting up to 1700mm (66.9 in). Unlike fixed-width alternatives, the PJ series offers adaptable fork widths of 235-500mm (9.3-19.7 in) and a short 650mm (25.6 in) fork length, making it ideal for positioning skids, dies, and boxes rather than full-depth pallets. The unit features a detachable LP20 platform option, converting the stacker into a mobile lifting table for ergonomic assembly work.

400KG Manual Stacker

Model		PJ4085	PJ4120	PJ4150	PJ4170
Capacity	(KG)	400	400	400	400
Max.Fork Height	(mm)	850	1200	1500	1700
Min.Fork Height	(mm)	85	85	85	85
Fork Length	(mm)	650	650	650	650
Fixed Fork Width (PF series)	(mm)	550	550	550	550
Adjustable Fork Width (PJ series)	(mm)	235-500	235-500	235-500	235-500
Load Roller	(mm)	Φ75	Φ75	Φ75	Φ75
Steering Wheel	(mm)	Φ125	Φ125	Φ125	Φ125
Pump Strokes to Max.Height	(mm)	35	50	63	74
Overall Height	(mm)	1060	1410	1710	1910
Overall Width	(mm)	590	590	590	590
Overall Length	(mm)	1040	1040	1040	1040
Net Weight (PF Series)	(KG)	70	76	82	90
Net Weight (PJ Series)	(mm)	75	81	85	95
Option Platform		LP20	LP20	LP20	LP20

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Performance

Precision Hydraulic System with Overload Regulation

The lifting mechanism is driven by a foot-pedal operated hydraulic pump, which separates the lifting force from the steering handle for improved ergonomics. The system is engineered for efficiency, requiring only 35 strokes to reach full height on the PJ4085 model and up to 74 strokes for the high-reach PJ4170. Crucially, the pump includes a built-in overload relief valve. This safety feature mechanically bypasses the lift cylinder if the load exceeds 400kg (880 lbs), protecting the hydraulic seals from blowout and the structural frame from plastic deformation, ensuring long-term asset integrity.

High-Maneuverability Chassis Geometry

Designed for “last-mile” internal logistics, the PJ series prioritizes spatial efficiency. With an Overall Width of just 590mm (23.2 in) and an Overall Length of 1040mm (40.9 in), the unit boasts a turning radius significantly smaller than standard stackers. It runs on $Φ$ 125mm (4.9 in) steering wheels and $Φ$ 75mm (3.0 in) load rollers. This specific wheel ratio reduces rolling resistance on smooth concrete floors while maintaining a low lowered fork height of 85mm (3.3 in), allowing easy entry into low-clearance skids and crates.

Versatile Load Interface (Forks & Platform)

This equipment addresses the limitation of fixed-fork stackers through its adjustable carriage design. The forks can be laterally adjusted between 235mm (9.3 in) and 500mm (19.7 in), allowing operators to handle narrow loads (like server chassis or small motors) that would fall through standard ISO pallet forks. Furthermore, the short 650mm (25.6 in) fork length reduces the moment arm, increasing stability for dense, heavy loads. For non-palletized goods, the LP20 platform option sits securely over the forks, instantly creating a variable-height workbench that reduces operator back strain associated with bending and lifting.

Frequently Asked Questions

What is a manual pallet stacker used for?

A manual pallet stacker is a hand‑hydraulic material handling tool used to lift, stack, and lower pallets at low to medium heights in warehouses, workshops, and storage areas. It is ideal for light‑duty stacking, inventory organization, and transporting pallets short distances where electric or fuel‑powered equipment is not needed.

What is the difference between a pallet stacker and a forklift?

A pallet stacker is compact, manually or semi‑electrically powered, and designed for low to medium lifting heights in narrow spaces with lighter loads. A forklift is more powerful, has a much higher lift height and heavier load capacity, and is used for heavy‑duty, high‑level pallet handling and industrial operations.

Reference

[1] TCM Europe. “What is a Stacker? Exploring Essential Material Handling Equipment”. TCM Europe, Accessed February 22, 2026. https://www.tcm.eu/blog/what-is-a-stacker-exploring-essential-material-handling-equipment.

[2] U.S. Department of Labor, Occupational Safety and Health Administration. “1917.14 – Stacking of cargo and pallets”. OSHA, Accessed February 22, 2026. https://www.osha.gov/laws-regs/regulations/standardnumber/1917/1917.14.

[3] Cat Lift Trucks. “What are stacker trucks”. Cat Lift Trucks, Accessed February 22, 2026. https://www.catlifttruck.com/faq/what-are-stacker-trucks.