{"id":2803,"date":"2026-07-02T06:43:03","date_gmt":"2026-07-02T06:43:03","guid":{"rendered":"https:\/\/hydrauliccylindersprice.com\/product\/reach-stacker-luffing-cylinder\/"},"modified":"2026-07-02T06:43:07","modified_gmt":"2026-07-02T06:43:07","slug":"reach-stacker-luffing-cylinder","status":"publish","type":"product","link":"https:\/\/hydrauliccylindersprice.com\/cs\/produkt\/reach-stacker-luffing-cylinder\/","title":{"rendered":"Reach Stacker Luffing Cylinder"},"content":{"rendered":"

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Reach Stacker<\/span><\/p>\n

Reach Stacker Luffing Cylinder<\/h2>\n

The luffing cylinder is the muscle that lifts the boom \u2014 and everything hanging from it. A 45-tonne loaded container at the end of a 15-metre boom creates enormous forces at the boom pivot. The luffing cylinder pushes through 5,000 mm of stroke, raising the load from ground level to 5-high stacking height.<\/p>\n

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100\u2013220mm<\/span>Bore<\/span><\/div>\n
\u22645,000mm<\/span>Stroke<\/span><\/div>\n
30 MPa<\/span>Pressure<\/span><\/div>\n
60\u2013140mm<\/span>Rod<\/span><\/div>\n<\/div>\n<\/section>\n
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Technical Specifications<\/h2>\n
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\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
Product Name<\/td>\nReach Stacker Luffing Cylinder<\/td>\n<\/tr>\n
Features<\/td>\nUp-and-down tilting (luffing) of the boom<\/td>\n<\/tr>\n
Bore Diameter<\/td>\n100 mm \u2013 220 mm<\/td>\n<\/tr>\n
Rod Diameter<\/td>\n60 mm \u2013 140 mm<\/td>\n<\/tr>\n
Stroke<\/td>\nUp to 5,000 mm<\/td>\n<\/tr>\n
Working Pressure<\/td>\nMaximum 30 MPa<\/td>\n<\/tr>\n
Application<\/td>\nReach Stacker<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n
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Why the Luffing Cylinder Is the Most Stressed Component on a Reach Stacker<\/h2>\n
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\"Reach<\/p>\n

The luffing cylinder carries the combined weight of the boom, the telescopic extension, the spreader, and the container \u2014 multiplied by the boom length as a moment arm. At maximum reach (boom fully extended at 15+ metres), a 45-tonne container creates a moment of over 6,600 kNm at the boom pivot. The luffing cylinder must resist this moment through its stroke range while also absorbing the dynamic loads from container swing, wind gusts, and ground irregularities.<\/p>\n

This makes the luffing cylinder the most heavily loaded cylinder on the reach stacker \u2014 and the most critical for safety. A luffing cylinder failure under load would allow the boom to drop uncontrolled, risking catastrophic damage to containers, equipment, and personnel.<\/p>\n

Korea Ever-Power specifies integrated load-holding valves on every reach stacker luffing cylinder \u2014 preventing boom drop under any failure condition. Browse the offshore hydraulic cylinder<\/a> range for the telescopic (#24) and steering (#26) cylinders.<\/p>\n<\/section>\n

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Key Advantages of the Luffing Cylinder<\/h2>\n
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