Container Stacker

Empty Container Stacker Tilt Cylinder

Stacking empty containers 5 or 6 high in a port yard requires precision mast tilting — forward to place the container, backward to clear the stack on the way up. The tilt cylinder controls this forward/backward pitch, keeping 2.5-tonne containers aligned within centimetres at 15-metre stacking height.

100–220mmBore

≤1,000mmStroke

30 MPaPressure

60–140mmRod

Technical Specifications

Parameter	Specification
Product Name	Empty Container Stacker Tilt Cylinder
Features	Front and rear pitching action of the mast
Bore Diameter	100 mm – 220 mm
Rod Diameter	60 mm – 140 mm
Stroke	Up to 1,000 mm
Working Pressure	Maximum 30 MPa
Application	Empty Container Stacker

Why Mast Tilt Matters for Container Stacking

Empty Container Stacker Tilt Cylinder

An empty container stacker picks up and stacks empty shipping containers in a port container yard. The mast (vertical frame that the carriage rides up and down) must tilt forward to place a container at the top of a stack, and tilt backward to prevent the container from sliding off the forks during lifting. Without precise tilt control, the container can misalign with the stack — causing stack collapse, container damage, or injury to port workers.

The tilt cylinder provides the controlled pitching force for both forward and backward mast movement. At 30 MPa working pressure, the cylinder generates enough force to tilt the fully loaded mast (carriage + spreader + container, typically 5–8 tonnes total) against the mast's centre of gravity. Browse the offshore hydraulic cylinder range for all container handling equipment cylinders.

Container Stacker Hydraulic Cylinder Family

Korea Ever-Power manufactures four hydraulic cylinder types for empty container stackers — each for a different function:

Tilt (#20) — this product

Forward/backward mast pitch for container placement.

Lifting (#21)

Raises/lowers the carriage along the mast. Stroke up to 9,500 mm.

Steering (#22)

Controls the tire direction for maneuvering in tight yard spaces.

Side Shift (#23)

Left/right lateral adjustment of the spreader for precise alignment.

Tilt Cylinder OEM & ODM

Provide the stacker model, mast weight, tilt angle range, system pressure, and container size (20'/40'). Korea Ever-Power delivers the tilt cylinder individually or as part of the complete stacker cylinder set (tilt + lifting + steering + side shift). Contact the Korea Ever-Power hydraulic cylinder team.

Container handling hydraulic cylinder types

Frequently Asked Questions

How many tilt cylinders does a stacker use?

Typically 2 tilt cylinders per stacker — one on each side of the mast, operating in push-pull opposition to create the tilting torque.

What is the typical tilt angle range?

Forward tilt: 3–6°, backward tilt: 8–12°. The exact range depends on the stacker model and maximum stacking height.

Can the tilt cylinder handle continuous duty cycles?

Yes — port stackers operate 16–24 hours per day with cycle times of 2–3 minutes per container. The cylinder is designed for high-cycle fatigue life (500,000+ cycles).

What bore size should I specify?

Smaller stackers (5-high, 20' containers) typically use 100–140 mm bore. Larger stackers (8-high, 40' containers) use 160–220 mm. Korea Ever-Power calculates the required bore from the mast weight and tilt torque.

Can all 4 stacker cylinders be ordered together?

Yes — tilt, lifting, steering, and side shift cylinders are available as a complete package. Browse the offshore hydraulic cylinder range for all container handling products.

What Our Customers Say

★★★★★May 2026

"The tilt cylinders on our Kalmar empty container stacker have been running 22 hours/day for 9 months. Zero seal leaks, zero rod corrosion. The 30 MPa rating provides comfortable margin for our 25 MPa system."

L. Santos — Port Equipment Manager, Brazilian container terminal

★★★★★Jan 2026

"We ordered all 4 cylinder types for 3 identical stackers. Korea Ever-Power delivered 12 tilt + 6 lifting + 6 steering + 6 side shift cylinders as a single shipment. All matched our existing mounting dimensions."

K. Taniguchi — Procurement Manager, Japanese port operator

★★★★☆Sep 2025

"Good replacement tilt cylinders. The rod surface quality is noticeably better than our previous supplier — smoother operation and lower breakaway pressure. Only suggestion: slightly faster delivery (received in 9 weeks, hoped for 7)."

A. Okonkwo — Maintenance Engineer, Nigerian port

★★★★★Jun 2025

"The 140 mm bore tilt cylinders handle our 6-high stacking operations with plenty of force margin. Stack alignment accuracy improved compared to our worn-out original cylinders."

M. Christensen — Operations Supervisor, Danish container depot

★★★★★Feb 2025

"Replacement tilt cylinders for a 12-year-old Hyster stacker. Korea Ever-Power matched the dimensions from our old cylinders. The new seals are holding up much better in our humid tropical port environment."

R. Nguyen — Workshop Manager, Vietnamese container port