Reach Stacker Telescopic Cylinder
Reach Stacker Telescopic Cylinder
A reach stacker needs to pick containers from the second, third, even fourth row — without moving. The telescopic cylinder extends the boom outward by up to 8 metres, reaching over the front stack to grab a container behind it. Retract, lift, swing, place. 30 containers per hour.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Reach Stacker Telescopic Cylinder |
| Features | Linear telescopic extension and retraction of the boom |
| Bore Diameter | 200 mm – 220 mm |
| Rod Diameter | 150 mm – 180 mm |
| Stroke | Up to 8,000 mm |
| Working Pressure | Maximum 30 MPa |
| Application | Reach Stacker |
How Telescopic Boom Extension Works
A reach stacker's boom consists of a fixed outer section and one or more telescoping inner sections. The telescopic cylinder extends the inner boom section outward — increasing the stacker's reach from the minimum (first row, directly in front) to the maximum (typically 4th row, up to 15 metres from the front axle). The cylinder retracts to pull the boom back to minimum reach for travelling or placing containers in the front row.
The 8,000 mm stroke is the longest in the reach stacker cylinder family. At full extension, the cylinder carries the entire weight of the suspended container (up to 45 tonnes for a loaded 40' container) at maximum moment arm — the highest mechanical stress point in the reach stacker's operating envelope.
Korea Ever-Power engineers the telescopic cylinder for each stacker model within the offshore hydraulic cylinder range. Browse the luffing (#25) and steering (#26) cylinders for the complete reach stacker system.
Reach Stacker Hydraulic Cylinder Family
Three cylinder types work together on every reach stacker:
Extends/retracts the boom horizontally. Stroke up to 8,000 mm. Determines the stacker's maximum reach.
Raises/lowers the boom vertically. Controls lifting height for stacking 2–5 containers high.
Turns the wheels for yard navigation. Same function as the stacker steering cylinder but sized for the heavier reach stacker.
Key Advantages of the Telescopic Cylinder
- 8,000 mm stroke — reaches the 4th container row from the aisle. This eliminates the need to reposition the stacker for deep-stack operations, saving 30–60 seconds per container move.
- High rod-to-bore ratio — the 150–180 mm rod inside a 200–220 mm bore provides the column strength needed to resist buckling at full 8-metre extension under a 45-tonne suspended load.
- ️ Heavy-duty rod protection — the fully extended rod is exposed to port dust, rain, and accidental contact with containers. Chrome or ceramic coating combined with a multi-lip wiper system protects against contamination and scoring.
Telescopic Cylinder OEM & ODM
Provide the stacker model, boom geometry, maximum reach, maximum load at each reach position, and system pressure. Korea Ever-Power delivers individually or as part of the complete reach stacker cylinder set (telescopic + luffing + steering). Contact the Korea Ever-Power hydraulic cylinder team.
Frequently Asked Questions
What Our Customers Say
"The telescopic cylinder on our Kalmar reach stacker extends smoothly to full 7,500 mm reach. After 12 months of 3-shift operation (~300,000 cycles), the rod surface is in excellent condition."
Y. Tanaka — Equipment Manager, Japanese container terminal
"We ordered telescopic + luffing + steering for 4 reach stackers. Korea Ever-Power delivered all 12 cylinders in a single shipment. Every cylinder matched our existing mounting dimensions."
E. Johansson — Procurement Manager, Swedish port operator
"Good replacement telescopic cylinder for our aging Hyster reach stacker. The ceramic rod coating is a significant upgrade over the original hard chrome. Minor delay on delivery (11 weeks vs quoted 9)."
A. Obaseki — Maintenance Supervisor, Nigerian port
"The 220 mm bore telescopic cylinder handles our 41-tonne loaded container operations at 4th-row reach without any deflection issues. The high rod ratio provides good column stability."
C. Park — Operations Director, South Korean container terminal
"Second fleet order. Consistent quality across orders placed 12 months apart. Korea Ever-Power maintains dimensional tolerances within the same batch — important for our standardised fleet."
D. Singh — Fleet Engineering, Indian port group
Related Hydraulic Cylinder Categories
Additional information
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