{"id":3102,"date":"2026-07-06T03:00:04","date_gmt":"2026-07-06T03:00:04","guid":{"rendered":"https:\/\/hydrauliccylindersprice.com\/product\/truck-crane-spring-cylinder-ep-hcyy11112013-model\/"},"modified":"2026-07-06T03:05:52","modified_gmt":"2026-07-06T03:05:52","slug":"truck-crane-spring-cylinder","status":"publish","type":"product","link":"https:\/\/hydrauliccylindersprice.com\/et\/toode\/truck-crane-spring-cylinder\/","title":{"rendered":"Truck Crane Spring Cylinder | EP-HCYY11112013 Model"},"content":{"rendered":"

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Mobile Machinery Hydraulic Cylinder<\/span><\/p>\n

Truck Crane Spring Cylinder
\nEP-HCYY11112013 \u00b7 \u03a663mm \u00b7 Stroke 25mm \u00b7 20 MPa \u00b7 5 kg<\/span><\/h2>\n

The smallest cylinder on a truck crane \u2014 but one with a critical function. The spring cylinder provides a controlled return force within the boom support mechanism, ensuring consistent boom positioning and smooth operation during crane setup and teardown. At only 5 kg and 267 mm installation distance, it fits into tight spaces within the crane superstructure.<\/p>\n

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\u03a663<\/span>Bore<\/span><\/div>\n
25mm<\/span>Stroke<\/span><\/div>\n
20 MPa<\/span>Working Pressure<\/span><\/div>\n
30 MPa<\/span>Max Pressure<\/span><\/div>\n
5 kg<\/span>Weight<\/span><\/div>\n<\/div>\n<\/section>\n
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Technical Specifications<\/h2>\n
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\"Truck\u25b2 Dimension Drawing<\/span><\/p>\n

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Parameter<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
Product Name<\/td>\nTruck Crane Spring Cylinder<\/td>\n<\/tr>\n
Cylinder Model<\/td>\nEP-HCYY11112013<\/td>\n<\/tr>\n
Bore Diameter (D)<\/td>\n\u03a663 mm<\/td>\n<\/tr>\n
Rod Diameter (d)<\/td>\n\u03a632 mm<\/td>\n<\/tr>\n
Stroke (S)<\/td>\n25 mm<\/td>\n<\/tr>\n
Installation Distance (L)<\/td>\n267 mm<\/td>\n<\/tr>\n
Working Pressure<\/td>\n20 MPa<\/td>\n<\/tr>\n
Maximum Withstand Pressure<\/td>\n30 MPa<\/td>\n<\/tr>\n
Weight<\/td>\n5 kg<\/td>\n<\/tr>\n
Application<\/td>\nTruck-Mounted Crane<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n
\"Truck\u25b2 Truck Crane Spring Cylinder | EP-HCYY11112013 Model<\/span><\/section>\n
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How the Spring Cylinder Functions in the Crane Boom System<\/h2>\n
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The spring cylinder sits within the boom support mechanism, providing a controlled hydraulic spring force. Unlike a mechanical spring, the hydraulic spring cylinder delivers a precise, adjustable return force \u2014 maintaining constant tension on the boom support linkage regardless of temperature, wear, or operating angle.<\/p>\n

With only 25 mm of stroke, this is a short-travel actuator designed for force application rather than displacement. The \u03a663 bore at 20 MPa produces approximately 62 kN of force through this minimal stroke \u2014 more than sufficient for the spring function in the boom support.<\/p>\n

The compact 267 mm installation distance allows the cylinder to fit within the confined geometry of the boom pivot area, where space is limited by the boom hinge pins, hydraulic routing, and structural members. Browse the full mobile machinery hydraulic cylinder<\/a> range.<\/p>\n<\/section>\n

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Why Hydraulic Spring Instead of Mechanical Spring?<\/h2>\n
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Adjustable Force<\/strong><\/p>\n

The hydraulic pressure can be set precisely via a relief valve \u2014 the spring force is tunable for different boom configurations and load conditions. A mechanical spring has fixed characteristics that change with temperature and fatigue.<\/p>\n<\/div>\n

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Compact Envelope<\/strong><\/p>\n

A mechanical spring producing 62 kN of force would require a much larger installation volume. The hydraulic cylinder delivers the same force in a 267 mm package with \u03a663 mm diameter.<\/p>\n<\/div>\n

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Damping Capability<\/strong><\/p>\n

The hydraulic oil provides inherent damping \u2014 absorbing shock loads and vibrations. A mechanical spring would transmit these directly to the boom structure, accelerating fatigue at the pivot points.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Key Advantages<\/h2>\n
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