Container Stacker

Empty Container Stacker Steering Cylinder

Container yards are tight. Rows are narrow. Stacks are close together. The steering cylinder turns each wheel precisely, giving a 30-tonne stacker the agility to navigate between container rows with only centimetres of clearance on each side.

80–200mmBore

60–100mmRod

25 MPaPressure

SteeringFunction

Technical Specifications

Parameter	Specification
Product Name	Empty Container Stacker Steering Cylinder
Features	Adjust tire direction for yard maneuvering
Bore Diameter	80 mm – 200 mm
Rod Diameter	60 mm – 100 mm
Working Pressure	Maximum 25 MPa
Application	Empty Container Stacker

Why Steering Precision Matters in Container Yards

Empty Container Stacker Steering Cylinder

An empty container stacker operates in a structured grid of container stacks. Row widths are typically 3.5–4.5 metres — barely wider than the stacker itself. The driver must navigate into the correct row, align with the target stack position, and pick or place a container — all without contacting adjacent stacks. Every steering input must translate instantly and accurately to wheel movement.

The steering cylinder converts hydraulic pressure from the power steering system into mechanical force that turns the wheels. Response time, linearity (wheel angle proportional to steering input), and zero-backlash are the critical performance parameters — not raw force. A steering cylinder with sloppy response or dead-band creates unpredictable handling that increases the risk of stack collisions and container damage.

Korea Ever-Power engineers the steering cylinder for each stacker model's axle weight, tire size, and steering geometry within the offshore hydraulic cylinder product range.

Key Advantages for Port Equipment Steering

Zero-backlash rod end bearings — precision-ground spherical bearings at both mounting points eliminate play in the steering linkage. The wheel follows the steering input with no lag or looseness.
Hard-chrome or ceramic rod — the steering cylinder cycles continuously during every yard movement. The rod surface must withstand high-frequency, short-stroke cycling (thousands of micro-cycles per shift) without wear or corrosion.
⚡ Fast response — the cylinder must respond within 50–100 milliseconds of steering input. Internal flow paths are optimised for minimal pressure drop and fast piston acceleration.
Seal design for high-frequency cycling — low-friction PTFE-bronze guide rings and polyurethane rod seals minimise breakaway friction and prevent the "sticky steering" that develops in conventional seal designs after 6–12 months of port operation.

Steering Cylinder OEM & ODM

Provide the stacker model, axle weight, steering geometry (Ackermann angle, tie-rod length), and system pressure. Korea Ever-Power delivers individually or as part of the complete stacker cylinder set (tilt + lifting + steering + side shift). Contact the Korea Ever-Power hydraulic cylinder team.

Frequently Asked Questions

How many steering cylinders does a stacker use?

Typically 1–2 per steered axle. Most stackers have a single rear-steered axle with 2 steering cylinders (one per wheel). Some 4-wheel-steer models use 4 cylinders.

What is the expected service life?

With proper seal maintenance (replacement every 4,000–6,000 hours), the cylinder body and rod can last the full stacker life (15–20 years). The high-frequency cycling demands more frequent seal attention than other stacker cylinders.

Can the steering cylinder be retrofitted?

Yes — Korea Ever-Power manufactures replacements for Kalmar, Hyster, Linde, and other OEM stackers. Mounting dimensions are matched from the original equipment drawings.

What bore size should I specify?

Smaller stackers (under 10 tonnes): 80–100 mm bore. Medium stackers (10–25 tonnes): 120–160 mm. Heavy stackers (25+ tonnes): 160–200 mm. The required bore depends on axle weight and tire friction.

Can all 4 stacker cylinders be ordered together?

Yes — tilt (#20), lifting (#21), steering (#22), and side shift (#23) as a coordinated package. Browse the offshore hydraulic cylinder range.

What Our Customers Say

★★★★★Apr 2026

"The steering response on our Kalmar stacker improved noticeably after replacing the original 15-year-old cylinders with Korea Ever-Power units. The zero-backlash rod ends made an immediate difference — the driver noticed on the first shift."

L. van Dijk — Port Equipment Coordinator, Netherlands

★★★★★Dec 2025

"We ordered steering + tilt + lifting + side shift for 2 stackers. All 8 steering cylinders were dimensionally identical — critical for consistent handling characteristics across our fleet."

K. Suzuki — Fleet Manager, Japanese container terminal

★★★★☆Aug 2025

"Good quality steering cylinders. The PTFE guide rings produce noticeably lower breakaway friction than our previous NBR-sealed cylinders. Only note: the paint finish on the barrel could be more durable for outdoor port use."

A. Diop — Workshop Supervisor, Senegalese port

★★★★★May 2025

"Emergency replacement for a leaking steering cylinder. Korea Ever-Power shipped in 4 weeks — our stacker was back in service before the scheduled dry-dock."

M. Costa — Operations Manager, Portuguese container depot

★★★★★Jan 2025

"Second order — steering cylinders for our growing fleet. Consistent quality, consistent pricing, consistent delivery. Exactly what we need from a hydraulic cylinder supplier."

T. Olsson — Procurement, Swedish port logistics