Atomoving

400KG Semi-electric Stacker

400kg Battery Powered Stacker 1500mm Lifting with Forks

  • Compact 590mm (23.2 in) Width: Engineered with a 1070mm (42.1 in) chassis length to navigate narrow aisles and standard door frames.
  • Dual-Interface Carriage: Features adjustable forks with a detachable 650x550mm (25.6×21.7 in) platform plate for handling both pallets and unpalletized cartons.
  • Optimized Power System: Equipped with a sealed 12V/60Ah maintenance-free battery and integrated charger for reliable daily duty cycles.
  • 0.8kW DC Lift Motor: Automates vertical lifting up to 1500mm (59.1 in), ensuring consistent throughput and eliminating manual hydraulic pumping.
The EF Series Battery-powered Stacker is a semi-electric work positioner designed to optimize material handling in confined high-density storage areas. With a rated load capacity of 400kg (882 lbs), this unit serves as a critical bridge between manual hand trucks and full-sized forklifts. It features a high-torque 0.8kW hydraulic power pack that delivers smooth elevation to a maximum height of 1500mm (59.1 in), effectively mitigating the ergonomic risks associated with repetitive manual lifting.
 
The chassis is precision-engineered for maneuverability, boasting a turning radius optimized for narrow workspaces with a total length of just 1070mm (42.1 in). The unit rides on Φ150mm (5.9 in) polyurethane steer wheels, providing low rolling resistance on concrete workshop floors. Whether used for die changing, shelf replenishment, or assembly line feeding, this stacker ensures precise load positioning with a lift speed engineered for safety and control.

400KG Semi-electric Stacker

Model EF4085 EF4120 EF4150 EF4170
Capacity
(KG)
400
400
400
400
Max.Platform Height
(mm)
850
1200
1500
1700
Min.Platform Height
(mm)
200
200
200
200
Platform Length
(mm)
650
650
650
650
Platform Width
(mm)
550
550
550
550
Total Length
(mm)
1070
1070
1070
1070
Total Width
(mm)
590
590
590
590
Total Height
(mm)
960
1310
1710
1910
Load Roller
(mm)
Φ150
Φ150
Φ150
Φ150
Steering Wheel
(mm)
Φ150
Φ150
Φ150
Φ150
Power Unit
(KW)
0.8
0.8
0.8
0.8
Battery
(Ah/V)
60/12
60/12
70/12
70/12
Net Weight
(KG)
88
93
107
115
Happy warehouse worker operating a forklift for material handling, surrounded by stocked shelves in an organized warehouse environment

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Performance

Electrified Hydraulic Lifting Efficiency

Replacing the labor-intensive foot-pedal mechanisms of manual stackers, this unit utilizes a 0.8kW DC lift motor powered by a 12V / 60Ah battery system. This electrification stabilizes the 400kg (882 lbs) payload during the ascent, ensuring consistent lift speeds of approximately 80-100 mm/s (15-19 fpm) regardless of operator fatigue levels. For operations managers, this specification translates directly to improved cycle times and a reduction in musculoskeletal strain injuries commonly caused by manual lifting of loads over 15kg (33 lbs).

Versatile Dual-Mode Load Interface

To maximize utility in mixed-use warehouses, the carriage is designed with a dual-interface system. It includes adjustable steel forks capable of handling small skids or open-bottom pallets, overlayed with a removable 650mm x 550mm (25.6 in x 21.7 in) chrome-plated steel platform. This configuration allows the stacker to instantly switch between lifting palletized goods and loose items—such as plastic totes, motors, or cardboard cartons—without requiring tool-based changeovers.

High-Density Structural Geometry

The stacker’s architecture is specifically defined by its low self-weight of approximately 115kg (253 lbs) and compact footprint. Unlike heavy counterbalance forklifts, this unit exerts minimal point-loading pressure, making it safe for operation on mezzanines and freight elevators with restricted weight capacities. The 590mm (23.2 in) overall width ensures the unit can pass through standard personnel doors and operate within aisles as narrow as 1200mm (47.2 in), maximizing usable floor space for storage racking.

Frequently Asked Questions

What is a semi-electric stacker?

A semi-electric stacker is a material handling machine that combines manual propulsion with electric lifting.

The lifting function is powered by an electric motor and battery, reducing operator effort, while the machine is pushed or pulled by hand for movement. It is more convenient than a fully manual stacker and more affordable and compact than a fully electric or counterbalance stacker, making it popular for light to medium-duty pallet stacking in warehouses, workshops, and storage rooms.

What is a walkie stacker?

A walkie stacker is a pedestrian-operated material handling machine used to lift, stack, and transport pallets. It is compact, easy to maneuver, and designed for light to medium-duty applications in warehouses, workshops, and storage areas. Most walkie stackers are either semi-electric or fully electric, offering efficient lifting without the need for a seated operator.

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.