{"id":1754,"date":"2026-09-08T03:54:18","date_gmt":"2026-09-08T03:54:18","guid":{"rendered":"https:\/\/ever-powers.com\/?post_type=product&p=1754"},"modified":"2026-09-08T03:55:29","modified_gmt":"2026-09-08T03:55:29","slug":"hcy11112025-crane-front-outrigger-support-hydraulic-cylinder","status":"publish","type":"product","link":"https:\/\/ever-powers.com\/id\/product\/hcy11112025-crane-front-outrigger-support-hydraulic-cylinder\/","title":{"rendered":"HCY11112025 Crane Front Outrigger Support Hydraulic Cylinder \u2014 \u03a680\u00d7\u03a660\u00d7790 | 18 MPa"},"content":{"rendered":"
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SEO Keyword Strategy \u2014 HCY11112025<\/h2>\n

Core Keyword:<\/strong> crane front outrigger support hydraulic cylinder<\/p>\n

Related Keywords:<\/strong> crane front stabilizer jack cylinder \u00b7 front outrigger vertical support cylinder \u00b7 hydraulic front leg cylinder for crane \u00b7 truck crane front jack cylinder replacement<\/p>\n

Long-Tail Keywords:<\/strong> crane front outrigger support hydraulic cylinder replacement \u00b7 truck crane front stabilizer cylinder bore and stroke verification \u00b7 hydraulic front outrigger jack cylinder for mobile crane leveling<\/p>\n<\/div>\n

<\/p>\n

HCY11112025 \u2014 Crane Front Outrigger Support Hydraulic Cylinder for Front Chassis Stabilization<\/h2>\n

The HCY11112025 crane front outrigger support hydraulic cylinder<\/strong> is a medium-bore vertical jack actuator that forms the front pair of load-bearing contact points in the crane’s four-outrigger stabilization system. With an 80 mm bore, a 60 mm piston rod, a 790 mm stroke, and a working pressure of 18 MPa, this cylinder extends downward from the end of the deployed front outrigger beam to drive the outrigger foot pad into contact with the ground and transfer the crane’s front reaction load safely into the supporting surface. Specification model reference: HCYY11112025.<\/p>\n

Unlike the front extension cylinder (HCYY1112024), which positions the outrigger beam horizontally, the HCY11112025 bears the crane’s actual structural load. Once deployed, it holds the front of the crane chassis elevated and level throughout every lift cycle, absorbing the dynamic forces of load pick-up, crane slewing, and load lowering at the front outrigger points. Engineers, maintenance managers, and procurement buyers must treat this cylinder as a primary structural component of the crane’s safety system \u2014 not merely a hydraulic actuator performing a convenience function \u2014 and must apply the same dimensional rigor to replacement selection as would be applied to any other structural crane component.<\/p>\n

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\"HCY11112025<\/div>\n

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Hydraulic Front Outrigger Jack Cylinder for Mobile Crane Leveling \u2014 Structural Role and Load Distribution<\/h2>\n

In the crane’s outrigger deployment sequence, the HCY11112025 acts immediately after the front extension cylinder has positioned the front outrigger beam at its working width. With the beam extended, the support cylinder extends vertically downward from its mounting at the beam end, pushing the outrigger pad toward the ground. As extension continues, the pad contacts the ground and the reaction force builds \u2014 lifting the front of the crane’s chassis progressively off its front road axles until the chassis reaches its specified level plane.<\/p>\n

The front outrigger support cylinders carry a share of the crane’s total vertical reaction load that varies continuously throughout a lifting operation. When the crane lifts a load directly forward \u2014 boom pointing toward the front of the chassis \u2014 the front outrigger points carry a higher proportion of the total load than the rear. When the boom is swung toward the rear or to the side, the load distribution shifts accordingly. In extreme forward-lifting scenarios at maximum rated load and radius, the front outrigger support cylinders may be carrying a disproportionately large share of the total crane and payload weight. This is why the structural integrity of the front support cylinders and the correct functioning of their load-holding circuit cannot be treated as a secondary concern.<\/p>\n

The front position of these cylinders on the crane chassis also means that the front outrigger support cylinders are among the most visible to an operator conducting a pre-lift outrigger inspection. Rod seepage, visible deformation, and any failure to maintain the chassis at its set level during lifting are all observable from a routine walking inspection of the outrigger area. This visibility is an advantage \u2014 it allows developing problems to be detected before they become critical. However, it also requires that operators and riggers conducting pre-lift checks understand what to look for and when to halt operations pending cylinder inspection.<\/p>\n

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\"HCY11112025<\/div>\n

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Truck Crane Front Stabilizer Cylinder Bore and Stroke Verification \u2014 Technical Specifications<\/h2>\n

The specifications below are the authoritative engineering data for HCY11112025 (specification model HCYY11112025). Both model designations are preserved as supplied. All dimensional parameters must be verified against the original crane OEM drawing and the measured existing cylinder before any replacement or production decision is made.<\/p>\n

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Cylinder Bore<\/p>\n

\u03a680 mm<\/p>\n

Piston bore \u2014 determines the vertical support force available at rated pressure for front outrigger load bearing<\/p>\n<\/div>\n

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Piston Rod Diameter<\/p>\n

\u03a660 mm<\/p>\n

Rod-to-bore ratio 75% \u2014 meaningful column stability for vertical compressive loading over the 790mm stroke range<\/p>\n<\/div>\n

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Stroke<\/p>\n

790 mm<\/p>\n

Vertical extension range \u2014 governs ground clearance accommodation and front leveling travel available at each front outrigger point<\/p>\n<\/div>\n

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Installation Distance<\/p>\n

1,112 mm<\/p>\n

Retracted pin-to-pin reference length \u2014 must match the front outrigger beam end structure geometry precisely<\/p>\n<\/div>\n

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Working Pressure<\/p>\n

18 MPa<\/p>\n

Normal continuous operating pressure for the front support circuit \u2014 higher than the extension circuit, reflecting the vertical load-bearing role<\/p>\n<\/div>\n

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Max. Withstand Pressure<\/p>\n

27 MPa<\/p>\n

Structural peak limit \u2014 1.5\u00d7 working pressure; not recommended for continuous operation<\/p>\n<\/div>\n

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Cylinder Weight<\/p>\n

45 kg<\/p>\n

Manageable field-replacement weight with appropriate mechanical assistance and safe working practice<\/p>\n<\/div>\n

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Specification Format<\/p>\n

\u03a680 \u00d7 \u03a660 \u00d7 790<\/p>\n

Bore \u00d7 Rod Diameter \u00d7 Stroke (mm)<\/p>\n<\/div>\n<\/div>\n

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\"HCY11112025<\/div>\n

Fig. 1 \u2014 CAD dimensional drawing for HCY11112025 (specification model HCYY11112025). Verify all dimensions against the original crane OEM drawing and measured existing cylinder before placing a replacement order.<\/p>\n

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Engineering Analysis \u2014 Hydraulic Front Outrigger Jack Cylinder for Mobile Crane Leveling and Load Transfer<\/h2>\n

The HCYY11112025 specification positions this cylinder at a moderate size relative to the crane’s full outrigger cylinder range \u2014 larger than the front extension cylinder, smaller than the main outrigger support cylinder (HCY11112023). This sizing reflects the front outrigger’s share of the crane’s total reaction load, the available hydraulic pressure in the front support circuit, and the vertical stroke required to accommodate site terrain variation at the front chassis position.<\/p>\n

Bore: 80 mm \u2014 Vertical Support Force at Front Outrigger Points<\/h3>\n

The 80 mm bore at 18 MPa working pressure generates the following theoretical vertical extension force:<\/p>\n

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Effective piston area (A):<\/strong><\/p>\n

A = \u03c0 \u00d7 (0.080 m)\u00b2 \/ 4 = \u03c0 \u00d7 0.0064 \/ 4 \u2248 0.005027 m\u00b2<\/p>\n

Theoretical extension force (F) at working pressure (18 MPa):<\/strong><\/p>\n

F = 18,000,000 Pa \u00d7 0.005027 m\u00b2 \u2248 90.5 kN (approximately 9.2 tonnes-force)<\/strong><\/p>\n

This is a theoretical hydraulic force. Actual effective support force is lower due to seal friction, hydraulic system losses, and pressure drop between the pump and the cylinder port under dynamic operating conditions. The actual front outrigger reaction force during a crane lift varies with load weight, lift radius, slewing angle, and dynamic factors.<\/p>\n<\/div>\n

Approximately 90.5 kN of theoretical support force per front outrigger cylinder is the force budget available to hold the front of the crane and carry the front outrigger share of the total lift reaction load. Buyers should note that this is considerably less than the approximately 461 kN theoretical force generated by the main outrigger support cylinder (HCY11112023) with its 140 mm bore at 30 MPa. This difference in force capacity reflects the deliberate distribution of the crane’s reaction load \u2014 the main outrigger support cylinders, being further from the crane’s slewing center, carry a larger proportional share of the load under many lifting configurations, and the hydraulic system is sized accordingly for each position.<\/p>\n

This comparison also explains why the front support cylinder specification must not be confused with the main support cylinder specification. Installing an 80 mm bore front support cylinder in the main outrigger position, or conversely installing a 140 mm bore main support cylinder in the front outrigger beam end housing, would both represent serious mismatches \u2014 one under-capacity, the other physically too large to fit the beam end structure.<\/p>\n

Piston Rod Diameter: 60 mm \u2014 Column Stability for Vertical Front Outrigger Loading<\/h3>\n

The 60 mm piston rod in an 80 mm bore cylinder gives a rod-to-bore ratio of 75%. For a vertical jack cylinder with a 790 mm stroke, this proportion provides meaningful resistance to column buckling under the compressive front outrigger reaction load. When the cylinder is fully extended and supporting its share of the crane’s operating weight, the piston rod behaves as a structural column in compression. The 60 mm diameter provides a cross-sectional area sufficient to carry the compressive load across the full 790 mm stroke range without the risk of lateral rod deflection that would arise from a significantly thinner rod.<\/p>\n

The practical implication for buyers is that a replacement cylinder with a thinner piston rod \u2014 such as a 50 mm rod in an 80 mm bore cylinder \u2014 may appear dimensionally similar but represents a structurally different product. The thinner rod would have lower column stability at the same stroke, and under the vertical compressive loads of the front outrigger position, this difference is an engineering variable, not merely a superficial distinction. The piston rod diameter must match the original specification as precisely as the bore and stroke.<\/p>\n

Stroke: 790 mm \u2014 Front Leveling Range and Ground Clearance<\/h3>\n

The 790 mm stroke governs two overlapping aspects of the front outrigger support function. First, it defines the maximum vertical travel available to lift the crane’s front chassis clear of the ground surface, allowing the front road axles to be unloaded. Second, it defines the leveling margin \u2014 the difference in extension between the left and right front outrigger cylinders that can be accommodated when the setup site slopes laterally beneath the front of the crane.<\/p>\n

The front chassis of a truck crane tends to sit lower to the ground than the rear chassis on many designs, which means the front outrigger support cylinders may need to extend further than the rear cylinders to achieve wheel-unloading on typical setup sites. The 790 mm stroke is therefore a carefully designed parameter rather than an arbitrary dimension. A replacement cylinder with a shorter stroke may be unable to achieve full front axle unloading on softer sites where the outrigger pads sink progressively into the ground during setup, consuming available stroke before full lift is achieved.<\/p>\n

Conversely, a cylinder with a longer stroke than 790 mm installed in this position may project the outrigger pad further than the front beam end structure’s guide housing can accommodate, causing the cylinder to bottom out against a mechanical travel limit within the housing \u2014 not at the cylinder’s own end of stroke. This is an installation error that can damage both the cylinder end fittings and the housing structure.<\/p>\n

Installation Distance: 1,112 mm \u2014 Retracted Fit in the Front Outrigger Beam End<\/h3>\n

The 1,112 mm installation distance defines the pin-to-pin retracted length \u2014 the centre-to-centre spacing of the mounting pins at the fully retracted position. This dimension must correspond to the fixed mounting geometry at the front outrigger beam end: the distance between the upper mounting pin bore in the beam end housing and the lower pin position at the outrigger pad interface. A replacement cylinder that is shorter or longer in this retracted reference dimension will either not reach both pin positions simultaneously or will create a pre-loaded condition in one of the end connections before the cylinder begins to extend. Either outcome prevents correct installation and must be identified before the cylinder is ordered.<\/p>\n

Working Pressure 18 MPa vs. Maximum Withstand Pressure 27 MPa<\/h3>\n

The front support circuit operates at 18 MPa \u2014 lower than the main outrigger support circuit’s 30 MPa. This pressure difference is a deliberate system design feature, reflecting the lower force requirement of the front outrigger position relative to the main outriggers, and the smaller bore of the front support cylinder which generates an appropriate support force at this lower pressure. The 27 MPa maximum withstand pressure is the structural limit of the cylinder body, end caps, and seals \u2014 not the recommended operating pressure. If the crane’s hydraulic system is adjusted or modified and the front support circuit pressure rises above 18 MPa toward the 27 MPa limit, the consequence is not improved support force (the crane is already supported and cannot meaningfully use additional force) but instead accelerated seal wear, increased fatigue loading at welds and joints, and reduced cylinder service life. The circuit pressure-relief valve setting must be confirmed to match the 18 MPa working pressure specification.<\/p>\n

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Front Outrigger Support Cylinder Installation Position \u2014 Crane Front Chassis Vertical Jack Location<\/h2>\n

The installation diagram below identifies the position of the HCY11112025 front outrigger support cylinder within the crane’s complete outrigger system. At the forward end of each deployed front outrigger beam, the support cylinder is housed vertically within the beam end structure, with its rod extending downward to the outrigger pad.<\/p>\n

\"Truck<\/div>\n

Fig. 2 \u2014 Installation location diagram for HCY11112025 and associated crane outrigger cylinders (Products 4\u20137). The front outrigger support cylinder is identified at the forward outrigger beam end positions.<\/p>\n

In many truck crane designs, the front outrigger beam end housing that contains the support cylinder is located immediately behind or adjacent to the crane’s front steering axle area. This proximity to the axle means that access to the support cylinder for inspection and maintenance may require partial disassembly of access panels or mudguard components. Maintenance planners should confirm the access sequence for the specific crane model before scheduling a cylinder replacement, to ensure that the correct tools, access equipment, and replacement parts \u2014 including any gaskets, seals, or fasteners for the access panels \u2014 are available before the work begins.<\/p>\n

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Load Holding, Pressure Stability, and Front Outrigger Circuit Safety<\/h2>\n

Once the crane is leveled and lifting begins, each front outrigger support cylinder must maintain its individually set extension position throughout the operation \u2014 whether the lift lasts thirty seconds or several hours. The hydraulic mechanism that achieves this position-holding is typically a combination of the directional control valve’s closed-center position and one or more load-holding or pilot-operated check valves mounted close to the cylinder port or integrated into the circuit manifold.<\/p>\n

The front outrigger support circuit is particularly sensitive to load-holding valve condition because the front cylinders tend to carry varying loads as the crane boom swings through different slewing angles during a lift sequence. Each time the boom passes over a front outrigger position \u2014 particularly during tandem lifts or complex rigging sequences \u2014 the load on that front cylinder changes. A load-holding valve with even minor seat wear will exhibit slightly different holding performance under varying load conditions, and on a long lift sequence with many slewing passes, cumulative drift can become measurable. Front outrigger cylinder replacement should therefore routinely include a functional test of the load-holding valves, not merely a dimensional check of the cylinder.<\/p>\n

Pressure stability in the front support circuit also depends on the hydraulic fluid condition. Hydraulic fluid that has become contaminated with water \u2014 a risk in cranes that operate in wet environments or are stored outdoors \u2014 can cause partial emulsification that reduces the fluid’s bulk modulus. A lower bulk modulus fluid is more compressible, which means the hydraulic circuit effectively becomes softer and the front outrigger cylinders may exhibit more position compliance under varying load \u2014 a slow, pressure-driven drift that is difficult to distinguish from seal deterioration without systematic diagnosis. Regular hydraulic fluid sampling and condition monitoring is the most effective preventive measure for this class of problem.<\/p>\n

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Rod Alignment, Side Loading, and Front Outrigger Pad Geometry at the Support Cylinder<\/h2>\n

The front outrigger support cylinder is designed to operate under axial compressive loading \u2014 the ground reaction force acting directly upward along the cylinder’s vertical axis, balanced by the crane’s weight acting downward. In this ideal condition, the rod experiences pure compression, and the rod seal, guide bush, and piston carry only the loads designed for them.<\/p>\n

Several practical factors can introduce side loading at the front outrigger position. Sloped ground beneath the front outrigger pad creates a horizontal component in the ground reaction force, which is transmitted upward as a lateral load into the cylinder rod. The magnitude of this side-load component depends on the slope angle and the outrigger pad design \u2014 a pad that pivots or tilts to match the ground surface reduces the side-load component transmitted to the cylinder, while a rigid flat pad on a sloped surface can transmit a significant horizontal force. When setting up on sloped ground, the crane manufacturer’s guidance on maximum site slope and required cribbing should be followed to keep this side-load component within the design limits of the front outrigger housing and cylinder.<\/p>\n

The front outrigger beam end housing constrains the support cylinder against lateral movement. As this housing wears at its guide contact surfaces over the crane’s service life, the cylinder is permitted to tilt slightly within the housing, and the guide bush inside the cylinder head absorbs an increasing proportion of the lateral load. A worn housing guide surface is therefore a multiplier for side-load damage on the cylinder rod seal and guide bush. Assessing the housing guide surface condition and restoring it if necessary is an important part of any front outrigger support cylinder replacement project.<\/p>\n

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Inspection and Service Guidance for the Truck Crane Front Stabilizer Cylinder<\/h2>\n

A systematic inspection regime for the HCY11112025 front outrigger support cylinder should cover the following elements. These apply to condition assessment of the existing cylinder and to the ongoing management of a newly installed replacement unit.<\/p>\n

    \n
  • Rod surface inspection \u2014 wiper and seal contact zone:<\/strong> The piston rod surface in the area that passes through the wiper seal and rod seal should be examined for scoring, pitting, corrosion, and chrome layer condition at every scheduled service. The front outrigger rod is exposed to the outdoor environment when the cylinder is retracted during road travel, including exposure to road spray and salt in winter-service regions. A rod surface protector or telescoping sleeve, if originally fitted, should be maintained.<\/li>\n
  • External seal leakage:<\/strong> Visible oil accumulation around the rod seal, at port connections, or at the cylinder body welds is an early warning of seal deterioration. A small amount of oil film on the rod is normal for a working cylinder, but active seepage or dripping indicates a seal that requires servicing. Leakage from a front outrigger support cylinder should be investigated before the next lift, not deferred to the next scheduled service.<\/li>\n
  • Piston seal integrity \u2014 drift test:<\/strong> With the front outrigger fully deployed, the control valve in neutral, and no active hydraulic pressure, observe the front chassis level over a defined holding period. Any measurable chassis settlement at the front indicates either piston seal bypass or load-holding valve deterioration. Both should be investigated before returning the crane to service.<\/li>\n
  • Mounting pin and bushing condition:<\/strong> Check the mounting pin diameter and bushing bore at both the beam-end mount and the outrigger pad mount. Worn pins increase angular play in the end connections, introducing side-load into the rod beyond what the housing guide surface can absorb alone. Replacing worn pins and bushings during cylinder replacement is strongly recommended.<\/li>\n
  • Outrigger pad swivel condition:<\/strong> The outrigger pad at the base of the support cylinder, if it incorporates a swivel mechanism to accommodate ground slope, should be checked for freedom of movement and correct locking function. A seized swivel pad that cannot tilt to match the ground surface effectively increases the side-load component transmitted to the cylinder on every setup on non-level ground.<\/li>\n
  • Front beam end housing guide surfaces:<\/strong> As discussed above, the guide surfaces within the beam end housing that constrain the cylinder against lateral movement should be inspected for wear, deformation, and corrosion. Restore these surfaces to within the manufacturer’s specified clearance before installing a replacement cylinder.<\/li>\n<\/ul>\n

    <\/p>\n

    OEM Integration and Aftermarket Procurement \u2014 Selecting the Correct Front Outrigger Support Cylinder<\/h2>\n

    The HCY11112025 at 45 kg is a manageable replacement unit for a properly equipped maintenance team, but it remains a structural component whose replacement requires the crane to be safely supported, the hydraulic circuit depressurized, and the front outrigger beam positively secured before the cylinder is disconnected. Field replacement should not be attempted without confirming that the front outrigger beam is independently supported \u2014 by the crane’s built-in beam locking mechanism or by separate mechanical support \u2014 before removing the cylinder’s hydraulic connections and pin attachments.<\/p>\n

    The note regarding the product title and specification model designations \u2014 HCY11112025 versus HCYY11112025 \u2014 should be reflected in any inquiry or purchase order. Both designations are preserved as supplied. Buyers submitting an inquiry should reference the full specification (\u03a680 \u00d7 \u03a660 \u00d7 790, 18 MPa working pressure, 1,112 mm installation distance) alongside the model reference, to ensure unambiguous identification of the correct cylinder regardless of which model designation their crane’s documentation uses.<\/p>\n

    For OEM buyers integrating this cylinder into new crane production, the front outrigger beam end housing drawing, the required mounting pin diameters and lug widths at both ends, the hydraulic port thread standard and positions, and the front support circuit working pressure should all be provided with the initial inquiry. A pre-production dimensional drawing \u2014 issued by the cylinder manufacturer for buyer approval before manufacturing begins \u2014 is the recommended confirmation step for any structural crane cylinder order.<\/p>\n

    <\/p>\n

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    Technical Information Checklist \u2014 Crane Front Outrigger Support Cylinder Inquiry<\/h2>\n

    Supplying the following information enables our team to confirm compatibility and issue an accurate quotation without unnecessary back-and-forth:<\/p>\n

    \n
    Crane make, model, and serial number<\/div>\n
    Original cylinder model number or nameplate photograph<\/div>\n
    Photographs of cylinder installed in the front outrigger beam end housing<\/div>\n
    Measured bore diameter and piston rod diameter<\/div>\n
    Measured stroke and retracted installation distance<\/div>\n
    Mounting pin diameter at both head end and rod end<\/div>\n
    Lug or clevis width at both ends<\/div>\n
    Hydraulic port thread form, size, and positions<\/div>\n
    Confirmed hydraulic circuit working pressure for the front support circuit<\/div>\n
    Front outrigger beam end housing internal dimensions (if available)<\/div>\n
    OEM engineering drawing (if available)<\/div>\n
    Required quantity and delivery schedule<\/div>\n<\/div>\n<\/div>\n

    <\/p>\n

    Frequently Asked Questions \u2014 Crane Front Outrigger Support Hydraulic Cylinder Replacement<\/h2>\n
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    How is the front outrigger support cylinder different from the main outrigger support cylinder on the same crane?<\/h3>\n

    The front support cylinder (HCY11112025, \u03a680 \u00d7 \u03a660 \u00d7 790, 18 MPa) is smaller in bore, operates at a lower hydraulic pressure, and generates a lower theoretical support force than the main outrigger support cylinder (HCY11112023, \u03a6140 \u00d7 \u03a6120 \u00d7 640, 30 MPa). This reflects the different load-bearing roles of the front and main outrigger positions in the crane’s four-point support geometry, and the different hydraulic circuit pressures assigned to each position. The two cylinders are not interchangeable \u2014 their bore diameters, rod diameters, strokes, installation distances, and pressure ratings are all different, and each is sized for its specific structural role.<\/p>\n<\/div>\n

    \n

    My crane’s front chassis is slowly settling during long lifts \u2014 is the front support cylinder the cause?<\/h3>\n

    Gradual front chassis settlement during a lift can result from piston seal deterioration in the front support cylinder \u2014 allowing hydraulic fluid to bypass across the piston and permitting slow rod retraction under load \u2014 or from a faulty load-holding valve in the front support circuit. The settling may also originate from outrigger pad sinkage into soft ground rather than from hydraulic drift. Systematic diagnosis requires distinguishing between these causes: a sealed hydraulic pressure test of the circuit with the outrigger at full extension, combined with observation of whether the chassis level loss continues when the hydraulic circuit is fully isolated, will identify the source. Both the cylinder piston seal and the load-holding valve should be assessed before replacing the cylinder alone.<\/p>\n<\/div>\n

    \n

    Can the front outrigger support cylinder be used to adjust the crane’s level during a lift if the crane goes off-level?<\/h3>\n

    Re-leveling a crane while a load is suspended is a safety-critical operation that must follow the crane manufacturer’s specific procedure, if such a procedure is permitted at all for the crane model in question. Many crane manufacturers prohibit re-leveling under load. The outrigger support cylinders are not designed to be operated as fine-adjustment actuators under full load conditions \u2014 extending or retracting one cylinder while the others remain at full pressure distributes the load asymmetrically across the circuit and can create transient pressure spikes. Always follow the crane manufacturer’s operating manual on this subject and do not attempt to re-level a loaded crane without explicit authorisation from the crane’s operating procedure documentation.<\/p>\n<\/div>\n

    \n

    The product display name is HCY11112025 but the specification model is HCYY11112025 \u2014 which should I reference in my purchase order?<\/h3>\n

    Both designations are preserved exactly as supplied in the engineering data. Neither has been modified or corrected. When submitting a purchase order or inquiry, reference both designations alongside the full specification \u2014 \u03a680 \u00d7 \u03a660 \u00d7 790, 18 MPa working pressure, 1,112 mm installation distance \u2014 to ensure unambiguous product identification. Including the crane make, model, and serial number in the inquiry provides the most reliable basis for confirming that the correct cylinder is supplied for the specific crane.<\/p>\n<\/div>\n

    \n

    Is a pre-production dimensional drawing available for review before manufacturing begins?<\/h3>\n

    A pre-production dimensional drawing can be prepared for buyer review and approval before manufacturing begins. This drawing will show all critical dimensions \u2014 bore, rod diameter, stroke, installation distance, port positions, port thread forms, mounting pin diameters, and lug widths \u2014 so that the buyer can confirm the cylinder will interface correctly with the crane before any material is committed to production. This confirmation step is strongly recommended for all structural crane cylinder replacements and is standard practice for OEM integration orders.<\/p>\n<\/div>\n

    \n

    What is the correct procedure for safe removal of a front outrigger support cylinder in the field?<\/h3>\n

    Safe removal requires the crane to be on firm, level ground with no load suspended; the front outrigger beam to be positively secured against movement \u2014 by the beam’s mechanical locking pin if fitted, or by independent mechanical support; the front support hydraulic circuit to be fully depressurized at the cylinder before the hose connections are broken; and any residual pressure in the cylinder captured between the piston and the retracted rod end to be released through the port before the end pins are removed. The specific procedure for the crane model should be confirmed against the crane’s maintenance manual before work begins. Do not rely solely on the control valve closed position to secure the cylinder against accidental rod movement during removal.<\/p>\n<\/div>\n<\/div>\n

    <\/p>\n

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    Request Technical Evaluation \u2014 HCY11112025 Crane Front Outrigger Support Hydraulic Cylinder<\/p>\n

    Share your crane model and serial number, existing cylinder nameplate, measured dimensions, photographs, or OEM engineering drawing. Our team will review your front outrigger support cylinder replacement or integration requirements and provide a pre-production dimensional drawing, technical assessment, and commercial quotation.<\/p>\n

    \n
    \ud83d\udcd0 Send OEM or Crane Drawing<\/div>\n
    \ud83d\udcf7 Send Cylinder and Outrigger Photos<\/div>\n
    \ud83d\udccb Request Pre-Production Drawing<\/div>\n
    \ud83d\udce6 Ask About Fleet or OEM Orders<\/div>\n<\/div>\n

    Request a Quotation \u2192<\/a><\/p>\n

    Engineering review \u00b7 Pre-production dimensional drawing confirmation \u00b7 OEM and fleet replacement orders welcome<\/p>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

    Truck crane front outrigger support jack hydraulic cylinder, \u03a680\u00d7\u03a660\u00d7790mm, 18MPa working pressure, 90.5kN theoretical force, 45kg. Front vertical stabilizer jack for mobile crane leveling. Request dimensional drawing and OEM quotation.<\/p>","protected":false},"featured_media":1720,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[114],"product_tag":[],"class_list":["post-1754","product","type-product","status-publish","has-post-thumbnail","product_cat-crane-hydraulic-cylinder","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/ever-powers.com\/id\/wp-json\/wp\/v2\/product\/1754","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ever-powers.com\/id\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/ever-powers.com\/id\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ever-powers.com\/id\/wp-json\/wp\/v2\/media\/1720"}],"wp:attachment":[{"href":"https:\/\/ever-powers.com\/id\/wp-json\/wp\/v2\/media?parent=1754"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/ever-powers.com\/id\/wp-json\/wp\/v2\/product_brand?post=1754"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ever-powers.com\/id\/wp-json\/wp\/v2\/product_cat?post=1754"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ever-powers.com\/id\/wp-json\/wp\/v2\/product_tag?post=1754"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}