{"id":782,"date":"2026-05-13T02:32:35","date_gmt":"2026-05-13T02:32:35","guid":{"rendered":"https:\/\/tiltcylinder.net\/?post_type=product&p=782"},"modified":"2026-05-13T02:32:35","modified_gmt":"2026-05-13T02:32:35","slug":"epyy11112019-boom-rear-tilt-prevention-cylinder","status":"publish","type":"product","link":"https:\/\/tiltcylinder.net\/de\/product\/epyy11112019-boom-rear-tilt-prevention-cylinder\/","title":{"rendered":"EPYY11112019 Boom Rear Tilt Prevention Cylinder"},"content":{"rendered":"
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Essential Heavy-Duty Crane Safety Cylinder<\/span><\/h1>\n

Protect your equipment and crew with the ultimate safety fail-safe. The EPYY11112019 crawler crane safety cylinder<\/strong> is a precision-engineered 820kg actuator designed to prevent catastrophic boom rollback. Built for 31.5MPa high-pressure stability with a 1400mm stroke, this crawler crane boom stop cylinder<\/strong> provides the critical mechanical resistance needed to secure lattice booms during high-angle operations.<\/p>\n<\/header>\n

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1. Comprehensive Product Overview<\/h2>\n
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The Boom rear tilt prevention cylinder<\/strong> (also known as a backstop cylinder) is a mandatory safety component for large crawler cranes. Tasked with providing an immediate hydraulic buffer if the boom approaches its rear mechanical limit, the EPYY11112019 ensures that unintended rollback\u2014caused by sudden load release or wind gusts\u2014is effectively neutralized.<\/p>\n

Whether you are performing a crawler crane rear tilt prevention cylinder replacement<\/strong> or upgrading a new build, this heavy duty 820kg backstop cylinder for crawler cranes<\/strong> offers unyielding structural integrity. Its massive $\\Phi$190mm bore is designed to absorb colossal kinetic energy, serving as the final line of defense for the crane’s lattice structure.<\/p>\n

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Safety Field Applications:<\/h4>\n
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  • High-Angle Lifting:<\/strong> Safeguarding lattice booms during near-vertical operations.<\/li>\n
  • Wind-Sensitive Sites:<\/strong> Absorbing sudden rearward forces caused by gusting wind.<\/li>\n
  • Demolition & Rapid Release:<\/strong> Preventing boom recoil after sudden load detachment.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n
    \"EPYY11112019<\/div>\n<\/div>\n<\/section>\n
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    2. Exact Technical Parameters<\/h2>\n

    Crane safety allows for zero compromise. Review the verified technical specifications of the EPYY11112019 crawler crane safety cylinder<\/strong> below to ensure perfect mechanical and hydraulic integration.<\/p>\n

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    Technical Attribute<\/th>\nSpecification Details (Model: EPYY11112019)<\/th>\n<\/tr>\n<\/thead>\n
    Cylinder Model Number<\/td>\nEPYY11112019<\/td>\n<\/tr>\n
    Bore \u00d7 Rod \u00d7 Stroke Dimensions<\/td>\n$\\Phi$190 \u00d7 $\\Phi$160 \u00d7 1400 (mm)<\/td>\n<\/tr>\n
    Rated Working Pressure<\/td>\n31.5 MPa (Approx. 4568 PSI)<\/td>\n<\/tr>\n
    Maximum Withstand Pressure<\/td>\n40 MPa (Extreme Impact Safety)<\/td>\n<\/tr>\n
    Trip \/ Operational Stroke<\/td>\n1400 mm (Buffer Range)<\/td>\n<\/tr>\n
    Installation Distance (Pin-to-Pin)<\/td>\n4300 mm<\/td>\n<\/tr>\n
    Total Unit Weight<\/td>\n820 kg (Safety-Grade Mass)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n
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    3. Structural Principles & CAD Blueprint<\/h2>\n
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    The EPYY11112019 operates as a double-acting hydraulic buffer. It is strategically mounted behind the boom to provide resistance when the boom reaches its safe angular limit. By utilizing a 31.5MPa hydraulic circuit, it acts as a stiff mechanical stop that can decelerate the boom structure safely.<\/p>\n

    Hydraulic Performance:<\/strong> When the boom pivots backward, it compresses the cylinder. The $\\Phi$190mm bore diameter is engineered to provide massive damping force. The cylinder’s internal manifold is designed to manage 40MPa peak pressure spikes, ensuring the safety of the entire crane superstructure.<\/p>\n

    Blueprint Anatomy:<\/strong> As detailed in the CAD schematic, the cylinder features a colossal 4300mm installation distance. It is equipped with oversized clevis pin geometry to handle high-shear forces. A distinctive feature is the integrated heavy-duty spherical plain bearings which absorb structural misalignments during dynamic crane operation.<\/p>\n<\/div>\n

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    \"CAD<\/p>\n

    CAD Blueprint detailing the 4300mm installation profile and \u03a6190mm bore architecture.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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    4. Core Advantages of EPYY Safety Rams<\/h2>\n
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    \ud83d\udee1\ufe0f<\/div>\n

    40MPa Peak Protection<\/h3>\n

    Engineered to withstand up to 40MPa, ensuring the heavy-duty crane safety cylinder<\/strong> can absorb extreme impact energy without catastrophic failure.<\/p>\n<\/div>\n

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    \u2696\ufe0f<\/div>\n

    820kg Stabilizing Mass<\/h3>\n

    The massive 820kg solid steel construction provides the necessary material density to safely stop booms weighing hundreds of tons.<\/p>\n<\/div>\n

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    \ud83d\udca7<\/div>\n

    Zero-Drift High-Pressure Seals<\/h3>\n

    Fitted with imported Japanese NOK multi-lip seals capable of holding 31.5MPa indefinitely, ensuring zero downward creep under static load.<\/p>\n<\/div>\n

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    \u2699\ufe0f<\/div>\n

    4300mm OEM Direct Fit<\/h3>\n

    Precisely engineered to a 4300mm installation profile, it serves as a 100% mechanical drop-in for global crane fleets.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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    5. Structure and Material Craftsmanship<\/h2>\n
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    Protecting a multi-million dollar crane requires world-class metallurgy. As a leading heavy-duty crane safety hydraulic cylinder manufacturer<\/strong>, we forge the EPYY11112019 from ST52.3 precision seamless tubing, specifically heat-treated to resist fatigue under shock loading.<\/p>\n

    The \u03a6190mm internal bore is roller-burnished to a mirror Ra 0.2\u00b5m finish. This process minimizes dynamic friction during the 1400mm strokes, dramatically extending seal life even in high-heat or abrasive construction environments.<\/p>\n