{"id":2262,"date":"2026-06-25T08:54:41","date_gmt":"2026-06-25T08:54:41","guid":{"rendered":"https:\/\/hydrauliccylindersprice.com\/?post_type=product&p=2262"},"modified":"2026-06-25T08:54:41","modified_gmt":"2026-06-25T08:54:41","slug":"hcyy11112004-steering-cylinder-for-aerial-work-vehicles","status":"publish","type":"product","link":"https:\/\/hydrauliccylindersprice.com\/ru\/product\/hcyy11112004-steering-cylinder-for-aerial-work-vehicles\/","title":{"rendered":"HCYY11112004 Steering Cylinder for Aerial Work Vehicles"},"content":{"rendered":"

<\/main><\/p>\n
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<\/div>\n
Aerial Work Vehicle \u00b7 Steering Function \u00b7 Ultra-Compact \u00b7 HCYY Series<\/div>\n

HCYY11112004 Steering Cylinder
\nfor Aerial Work Vehicles<\/h2>\n

The HCYY11112004 is the OEM steering cylinder for specific aerial work vehicle platforms \u2014 the double-acting actuator that pivots the drive wheels left and right to position the machine under the work area. At 2.8 kg, it is the lightest cylinder in the HCYY AWV range \u2014 a fraction of the lifting cylinder’s weight \u2014 yet its function is equally essential: without accurate steering, the aerial platform cannot reach the work position, cannot navigate between obstacles, and cannot be driven onto a transport trailer. The 20 MPa working pressure and 30 MPa maximum withstand pressure ensure this compact steering cylinder delivers reliable performance under the dynamic loads of construction-site driving.<\/p>\n

\n
\n
\u03a640\u00d7\u03a620<\/div>\n
Bore \u00d7 Rod<\/div>\n<\/div>\n
\n
125<\/div>\n
Stroke (mm)<\/div>\n<\/div>\n
\n
20 \/ 30<\/div>\n
MPa Work \/ Max<\/div>\n<\/div>\n
\n
2.8 kg<\/div>\n
Lightest in Range<\/div>\n<\/div>\n
\n
400<\/div>\n
Install Dist (mm)<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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Technical Specification \u2014 HCYY11112004<\/h2>\n

\"HCYY11112004<\/p>\n

\n\n\n\n\n\n
Cylinder Model<\/th>\nSpecifications<\/th>\nWorking Pressure<\/th>\nMax Withstand Pressure<\/th>\nTrip<\/th>\nInstallation Distance<\/th>\nWeight<\/th>\n<\/tr>\n<\/thead>\n
HCYY11112004<\/td>\n\u03a640\u00d7\u03a620\u00d7125<\/td>\n20 MPa<\/td>\n30 MPa<\/td>\n125<\/td>\n400<\/td>\n2.8 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n
Product Type<\/td>\nSteering hydraulic cylinder for aerial work vehicle<\/td>\n<\/tr>\n
Acting Type<\/td>\nDouble-acting (left & right steering under pressure)<\/td>\n<\/tr>\n
Function<\/td>\nDrive wheel steering \u2014 positions platform under work area<\/td>\n<\/tr>\n
Body Material<\/td>\n20# \/ 45# steel<\/td>\n<\/tr>\n
Seal Options<\/td>\nParker, NOK, Hallite, Busak Shamban<\/td>\n<\/tr>\n
Certification<\/td>\nISO 9001:2015, ISO 14001, ISO 45003<\/td>\n<\/tr>\n
Quality<\/td>\n100% proof pressure tested (30 MPa) + leakage test<\/td>\n<\/tr>\n
Brand<\/td>\nKorea Ever-Power or customer’s logo<\/td>\n<\/tr>\n
MOQ \/ Warranty<\/td>\n1 piece \/ 1 year<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n

<\/p>\n

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Three HCYY Steering Cylinder Variants \u2014 Different AWV Platforms, Same Function<\/h2>\n

The HCYY aerial work vehicle cylinder range<\/a> includes three steering cylinder part numbers \u2014 each serving a different AWV platform with different dimensional requirements. The steering function is the same (pivoting the drive wheels), but the bore, stroke, and pressure differ to match the specific platform’s steering geometry and axle configuration.<\/p>\n

\n\n\n\n\n\n\n\n
HCYY Part Number<\/th>\nFunction<\/th>\nStatus<\/th>\n<\/tr>\n<\/thead>\n
HCYY11112004<\/td>\nSteering Cylinder \u2014 \u03a640\u00d7\u03a620\u00d7125, 20\/30 MPa, 2.8 kg \u25c4<\/td>\n\u2713<\/td>\n<\/tr>\n
HCYY11112007<\/td>\nSteering Cylinder (variant \u2014 different AWV platform)<\/td>\n\u2713<\/td>\n<\/tr>\n
HCYY11112012<\/td>\nSteering Cylinder (variant \u2014 different AWV platform)<\/td>\n\u2713<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
Not interchangeable: <\/strong>
\nThe three HCYY steering cylinder variants (004, 007, 012) serve different AWV platforms with different bore, stroke, or port specifications. Always order by the exact part number stamped on the cylinder you are replacing \u2014 even though all three perform the steering function, they are dimensionally different and cannot be substituted for each other.<\/span><\/div>\n<\/section>\n

<\/p>\n

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2.8 kg \u2014 The Most Compact Cylinder in the HCYY AWV Range<\/h2>\n

The HCYY11112004 steering cylinder weighs 2.8 kg \u2014 lighter than a typical hydraulic fitting set. This extreme compactness is not a compromise; it is a design requirement. The steering cylinder must fit within the tight envelope of the AWV’s steering axle assembly, alongside the tie rods, steering arms, wheel hubs, and brake components. Every millimetre and every gram of the steering cylinder is dictated by the available space at the axle.<\/p>\n

\"HCYY11112004<\/p>\n

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\n

Compact but High-Pressure<\/h3>\n

The 20 MPa working pressure of the HCYY11112004 is the same as the much larger GTHZ210C boom steering cylinder (\u03a663, 13 kg). The difference is in the force output: the \u03a640 bore produces approximately 25.1 kN of extend force at 20 MPa, compared to 65.4 kN from the \u03a663 bore. The smaller force is matched to the lighter weight of the AWV platform this cylinder serves \u2014 less machine weight on the steered axle means less force needed to turn the wheels.<\/p>\n<\/div>\n

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30 MPa Maximum Withstand<\/h3>\n

The 1.5\u00d7 proof ratio (30 MPa max \u00f7 20 MPa working) ensures the cylinder housing and seals survive transient pressure spikes without damage. Steering circuits experience pressure spikes when the wheels hit obstructions (kerbs, debris, uneven ground) that suddenly resist the steering motion \u2014 the pressure surges momentarily as the hydraulic system absorbs the impact. The 30 MPa rating provides the margin for these dynamic events. Every HCYY11112004 is proof-tested at 30 MPa before shipment.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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Part of the Complete HCYY AWV Cylinder Range<\/h2>\n

The HCYY11112004 steering cylinder is one of 9 HCYY-series cylinders covering every hydraulic function on specific aerial work vehicle platforms. Order individually as a single steering cylinder replacement, or combine with other HCYY AWV cylinders for a multi-position overhaul.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n
HCYY Part Number<\/th>\nCylinder Function<\/th>\n<\/tr>\n<\/thead>\n
HCYY11112003<\/td>\nLifting Cylinder \u2014 \u03a640\u00d7\u03a620\u00d7125, 18\/27 MPa, 27 kg<\/td>\n<\/tr>\n
HCYY11112004<\/td>\nSteering Cylinder \u2014 \u03a640\u00d7\u03a620\u00d7125, 20\/30 MPa, 2.8 kg \u25c4<\/td>\n<\/tr>\n
HCYY11112005<\/td>\nMain Boom Angle Cylinder<\/td>\n<\/tr>\n
HCYY11112006<\/td>\nLifting Cylinder (variant)<\/td>\n<\/tr>\n
HCYY11112007<\/td>\nSteering Cylinder (variant)<\/td>\n<\/tr>\n
HCYY11112008<\/td>\nUpper Levelling Cylinder<\/td>\n<\/tr>\n
HCYY11112010<\/td>\nMain Boom Angle Cylinder (variant)<\/td>\n<\/tr>\n
HCYY11112011<\/td>\nFolding Boom Angle Cylinder<\/td>\n<\/tr>\n
HCYY11112012<\/td>\nSteering Cylinder (variant)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
Forklift + AWV from one supplier: <\/strong>
\nKorea Ever-Power also produces the HCYY forklift cylinder range<\/a> (000\u2013002, 028\u2013031). Fleet operators running both HCYY forklifts and HCYY aerial work vehicles can consolidate all cylinder sourcing with a single supplier.<\/span><\/div>\n<\/section>\n

<\/p>\n

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Why Steering Precision Matters on Aerial Work Vehicles<\/h2>\n

On a standard vehicle, imprecise steering wastes time. On an aerial work vehicle carrying personnel at height, imprecise steering creates a safety concern. Every steering input at ground level translates into lateral movement at the platform \u2014 and the higher the platform, the more amplified that movement becomes. A steering cylinder that sticks, overshoots, or responds with a delay creates a lateral jolt that personnel on the elevated platform feel as a sway or lurch.<\/p>\n

The HCYY11112004 steering cylinder’s 125 mm stroke translates through the steering linkage into the total wheel angle required by the AWV’s steering geometry. The 400 mm installation distance (centre-to-centre of the mounting pins when the rod is retracted) defines the envelope within which the cylinder must fit at the axle. Both dimensions must match the original equipment specification exactly \u2014 any deviation changes the steering ratio, the turning radius, or the wheel alignment.<\/p>\n

\"Hydraulic<\/p>\n<\/section>\n

<\/p>\n

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HCYY11112004 Steering Cylinder \u2014 Technical Questions<\/h2>\n
\n
\n

Is the HCYY11112004 the same as the HCYY11112007 or HCYY11112012?<\/h3>\n

No. All three are steering cylinders for aerial work vehicles, but they serve different AWV platforms with different dimensional specifications. The HCYY11112004 is \u03a640\u00d7\u03a620\u00d7125 at 20\/30 MPa and 2.8 kg; the 007 and 012 variants have different dimensions for different platforms. Always order by the exact part number on the cylinder you are replacing.<\/p>\n<\/div>\n

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The steering feels jerky at low speed \u2014 should I replace the steering cylinder?<\/h3>\n

Jerky low-speed steering (stick-slip) on aerial work vehicles is typically caused by rod seal hardening inside the steering cylinder \u2014 the seal friction exceeds the hydraulic driving force at very low flow rates, causing the rod to stick and then jump forward when enough pressure builds. A new HCYY11112004 with fresh, correctly specified seals eliminates this immediately. Before ordering, also check the steering linkage for worn ball joints or bent tie rods \u2014 mechanical backlash in the linkage can produce similar symptoms.<\/p>\n<\/div>\n

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Can I order the HCYY11112004 with the HCYY11112003 lifting cylinder for a combined replacement?<\/h3>\n

Yes. Ordering multiple HCYY AWV cylinders together is recommended \u2014 all are manufactured on the same production line in the same batch, shipped in one package. The HCYY11112003 (lifting, 27 kg) and HCYY11112004 (steering, 2.8 kg) are the two most common replacement cylinders on scissor-type AWV platforms. Replacing both during a single service window eliminates the risk of a second downtime event when the remaining cylinder eventually fails.<\/p>\n<\/div>\n

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What does the 30 MPa maximum withstand pressure mean for daily operation?<\/h3>\n

In daily operation, the steering circuit pressure should never reach 30 MPa \u2014 the system relief valve limits it to approximately 20 MPa. The 30 MPa rating is a proof-test margin for transient spikes (wheel impacts, debris, sudden load changes during steering). Every HCYY11112004 is tested at 30 MPa for a minimum of 2 minutes before shipment. If your steering circuit regularly reaches pressures above 20 MPa, the hydraulic system has a fault that should be diagnosed before it damages the cylinder. Contact Korea Ever-Power<\/a> for a replacement quotation.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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Customer Reviews<\/h2>\n
\n
\n
Lee K.<\/strong>
\nVerified Purchase \u00b7 May 2025<\/span><\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n

Replaced the steering cylinder on our scissor lift platform \u2014 the old one had developed stick-slip that was making positioning nearly impossible. The HCYY11112004 from Ever-Power fitted perfectly: \u03a640 bore, 125 mm stroke, 400 mm pin centres all matched. Steering is smooth and precise again from the first use. At 2.8 kg the cylinder is light enough to install with one hand while threading the fittings with the other. Total swap time was about 30 minutes. Excellent quality for the price.<\/p>\n<\/div>\n

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Skyworks Rental Services<\/strong>
\nVerified Purchase \u00b7 March 2025<\/span><\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n

We ordered the HCYY11112004 steering cylinder and HCYY11112003 lifting cylinder together for a scheduled service. Both arrived in one package, 20 days from order to delivery. The steering cylinder is impressively compact \u2014 hard to believe 2.8 kg can handle 20 MPa. Both cylinders passed our pre-installation pressure test at 30 MPa (steering) and 27 MPa (lifting) without issues. Installed on the AWV platform, both are performing at OEM level. We’ve added these to our standard reorder list.<\/p>\n<\/div>\n

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Ahmed S.<\/strong>
\nVerified Purchase \u00b7 January 2025<\/span><\/div>\n
\u2605\u2605\u2605\u2605\u2606<\/div>\n

Good cylinder, correct fit. The only reason for 4 stars: we initially ordered the HCYY11112007 by mistake (wrong variant for our platform). Ever-Power processed the exchange quickly, but it cost us a week. Our lesson: always check the exact HCYY part number on the old cylinder before ordering. The HCYY11112004 itself works perfectly \u2014 smooth steering, no leaks after 4 months of daily construction-site use.<\/p>\n<\/div>\n

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Chen Y.<\/strong>
\nVerified Purchase<\/span><\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n

Third HCYY steering cylinder we’ve purchased from Ever-Power \u2014 this time the 004 for a different platform in our fleet. Consistent quality every time. The 30 MPa test certificate was included in the box, which our safety inspector requires. Simple transaction, correct product, fast delivery. That’s all we need.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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Related HCYY AWV Cylinders<\/h2>\n
\n
\"HCYY<\/p>\n
\n

HCYY11112003 Lifting<\/h3>\n

\u03a665\u00d7\u03a645\u00d7840, 18\/27 MPa, 27 kg. Primary platform lift.<\/p>\n<\/div>\n<\/div>\n

\"HCYY<\/p>\n
\n

HCYY Boom & Levelling<\/h3>\n

005, 008, 010, 011 \u2014 boom angle, levelling, and folding.<\/p>\n<\/div>\n<\/div>\n

\"Generic<\/p>\n
\n

Generic AWV Cylinders<\/h3>\n

Scissor lift & boom lift cylinders \u2014 lifting, steering, floating, arm.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"

HCYY11112004 is the OEM part number for the steering cylinder fitted to specific aerial work vehicle platforms. At only 2.8 kg and 400 mm installation distance, this is the most compact cylinder in the HCYY AWV range \u2014 yet its role is critical: it pivots the drive wheels to position the aerial platform precisely under the work area. With \u03a640 bore, \u03a620 rod, and 125 mm stroke, the HCYY11112004 operates at 20 MPa working pressure with a 30 MPa maximum withstand pressure \u2014 a 1.5\u00d7 proof ratio that ensures structural integrity during the dynamic steering loads of construction-site operation. Korea Ever-Power manufactures this cylinder as a precision-matched OEM replacement, part of the complete 9-part HCYY AWV cylinder range.<\/div>","protected":false},"featured_media":2264,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[849],"product_tag":[],"class_list":["post-2262","product","type-product","status-publish","has-post-thumbnail","product_cat-aerial-work-vehicle-hydraulic-cylinders","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/hydrauliccylindersprice.com\/ru\/wp-json\/wp\/v2\/product\/2262","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hydrauliccylindersprice.com\/ru\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hydrauliccylindersprice.com\/ru\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/ru\/wp-json\/wp\/v2\/comments?post=2262"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/ru\/wp-json\/wp\/v2\/media\/2264"}],"wp:attachment":[{"href":"https:\/\/hydrauliccylindersprice.com\/ru\/wp-json\/wp\/v2\/media?parent=2262"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/ru\/wp-json\/wp\/v2\/product_brand?post=2262"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/ru\/wp-json\/wp\/v2\/product_cat?post=2262"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/ru\/wp-json\/wp\/v2\/product_tag?post=2262"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}