{"id":2593,"date":"2026-07-01T06:03:33","date_gmt":"2026-07-01T06:03:33","guid":{"rendered":"https:\/\/hydrauliccylindersprice.com\/product\/mining-dump-truck-steering-cylinder\/"},"modified":"2026-07-01T06:03:38","modified_gmt":"2026-07-01T06:03:38","slug":"mining-dump-truck-steering-cylinder","status":"publish","type":"product","link":"https:\/\/hydrauliccylindersprice.com\/pt\/produto\/mining-dump-truck-steering-cylinder\/","title":{"rendered":"Mining Dump Truck Steering Cylinder"},"content":{"rendered":"

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\n \"Mining<\/p>\n
\n Mining Dump Truck \u00b7 2nd of 5<\/span><\/p>\n

Mining Dump Truck Steering Cylinder<\/h2>\n

Turning a 600-tonne machine on a gravel road. The steering cylinder must overcome the friction of tyres as tall as a person \u2014 each tyre weighing over 5 tonnes, pressing into unpaved surfaces with a contact patch the size of a dining table. Maximum thrust: 779 KN. Stroke up to 2,000 mm.<\/p>\n

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63\u2013210mm<\/span>Bore<\/span><\/div>\n
\u22642,000mm<\/span>Stroke<\/span><\/div>\n
779 KN<\/span>Max Thrust<\/span><\/div>\n
22.5 MPa<\/span>at 210mm Bore<\/span><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n

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Mining Truck Steering vs Crane Steering \u2014 Different Vehicle, Different Physics<\/span><\/h2>\n

\"Mining<\/p>\n

\n \"Mining<\/p>\n

The mobile crane steering cylinder (#23) turns individual wheels on paved roads \u2014 low friction, moderate speed, precision angle control for each of up to 18 steerable wheels. The mining truck steering cylinder operates in a completely different regime: unpaved haul roads with loose gravel, mud, and ruts \u2014 surface friction 3\u20135\u00d7 higher than asphalt. Tyres are 2.7\u20134.0 metres in diameter with contact patches exceeding 1 square metre \u2014 the scrubbing force to rotate these tyres on a gravel surface is enormous.<\/p>\n<\/div>\n

On rigid-frame mining trucks (the most common configuration for ultra-class haul trucks), two steering cylinders are connected to the front axle’s steering linkage \u2014 similar in concept to a road truck but 10\u201320\u00d7 the force. On articulated trucks, the steering cylinders are even larger: they pivot the entire front chassis section relative to the rear section at a central hinge joint \u2014 a fundamentally different steering architecture that requires longer stroke (up to 2,000 mm) and higher force.<\/p>\n

Korea Ever-Power manufactures steering cylinders for both configurations as the second of five mining dump truck hydraulic cylinders<\/a>.<\/p>\n

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Technical Specifications<\/span><\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
Product<\/td>\nMining Dump Truck Steering Cylinder<\/td>\n<\/tr>\n
Function<\/td>\nWheel steering assistance<\/td>\n<\/tr>\n
Bore Diameter<\/td>\n63 mm \u2013 210 mm<\/td>\n<\/tr>\n
Rod Diameter<\/td>\n40 mm \u2013 100 mm<\/td>\n<\/tr>\n
Stroke<\/td>\n\u2264 2,000 mm<\/td>\n<\/tr>\n
Thrust Force<\/td>\nMaximum 779 KN (bore 210 mm \/ 22.5 MPa)<\/td>\n<\/tr>\n
Application<\/td>\nMining Dump Truck (rigid frame & articulated)<\/td>\n<\/tr>\n
Certification<\/td>\nISO 9001 \u00b7 100% hydrostatic tested<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/section>\n

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779 KN \u2014 Why Steering a Mining Truck Requires 80 Tonnes of Force<\/h2>\n

The steering force is proportional to the tyre-to-surface friction, the axle load, and the scrub radius. On a mining truck:<\/p>\n

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\n Giant tyres \u2014 massive contact patch<\/strong><\/p>\n

Each front tyre is 2.7\u20134.0 metres in diameter and 0.9\u20131.7 metres wide. The contact patch with the road surface exceeds 1 square metre per tyre. Rotating this contact patch against a gravel surface requires a scrubbing force of 50\u2013200 KN per tyre \u2014 the energy to shear and displace the gravel under the rubber. Two front tyres = 100\u2013400 KN of tyre scrub resistance alone.<\/p>\n<\/p><\/div>\n

\n Axle load \u2014 up to 200 tonnes on the front<\/strong><\/p>\n

A loaded 400-tonne mining truck can place 150\u2013200 tonnes on the front axle. This axle load presses the tyres deeper into the unpaved surface, increasing the rolling resistance and the scrub force. Steering at low speed (approaching the loading shovel, navigating the dump point) when the tyres are nearly static requires the highest force \u2014 the static friction coefficient exceeds the dynamic coefficient by 20\u201340%.<\/p>\n<\/p><\/div>\n

\n Mechanical advantage \u2014 leverage through the linkage<\/strong><\/p>\n

The steering cylinder’s 779 KN thrust is amplified (or reduced) by the steering linkage geometry. The linkage converts the linear cylinder force into a rotational torque at the steering knuckle. Korea Ever-Power calculates the required cylinder force from the truck OEM’s linkage geometry, tyre specification, maximum axle load, and worst-case surface friction. Contact the Korea Ever-Power engineering team<\/a> for mining steering force calculations.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n

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\n \"Mining
\n<\/section>\n

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Manufacturing Process<\/span><\/h2>\n

The steering cylinder bore (63\u2013210 mm) is honed to Ra 0.2\u20130.4 \u00b5m. Chrome plating is 80 \u00b5m minimum \u2014 the mining standard, driven by silica-dust abrasion on the exposed rod. Rod eye bearings are heavy-duty spherical joints rated for the combined thrust, side-force, and vibration loads of mine-site haul-road travel. The rod eye pin bore is machined to H7\/g6 for the truck OEM’s steering linkage pin.<\/p>\n

Seals are polyurethane with quad-lip wipers, rated for -40 \u00b0C to +100 \u00b0C and designed for silica-dust contamination resistance. Every steering cylinder is hydrostatic tested at 1.5\u00d7 rated pressure, drift-tested (verifying the steering hold position under axle load without creep), and response-time tested \u2014 ensuring the steering responds immediately to driver input without dead-band or lag. Matched sets of 2 cylinders per truck are supplied.<\/p>\n<\/section>\n

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OEM & ODM<\/span><\/h2>\n
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What You Provide<\/strong><\/div>\n
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Truck model, payload class, steering type (rigid front-axle or articulated frame), front axle load (loaded and empty), tyre size and type, worst-case haul road surface, maximum steering angle, bore\/rod\/stroke or force requirement, response-time requirement, temperature range, and the steering linkage assembly drawing.<\/p>\n<\/div><\/div>\n

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What the Factory Delivers<\/strong><\/div>\n
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Matched pair of steering cylinders with engineering drawing, bore, rod, stroke, 80 \u00b5m chrome, quad-lip wiper, spherical rod eye, and mounting dimensions. Hydrostatic + drift + response-time test certificate. Seal kits. Browse the mobile machinery hydraulic cylinder family<\/a> and the Korea Ever-Power catalogue<\/a>.<\/p>\n<\/div><\/div>\n<\/p><\/div>\n

\"Korea
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FAQ<\/span><\/h2>\n
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How does articulated steering differ from front-axle steering?<\/h3>\n

Front-axle steering turns only the front wheels \u2014 the chassis remains straight. Articulated steering pivots the entire front half of the truck relative to the rear half at a central hinge joint. Articulated trucks use longer-stroke, higher-force steering cylinders because they move a larger mass through a larger angle. Articulated steering gives a tighter turning radius for the truck’s length \u2014 critical in confined pit areas.<\/p>\n<\/p><\/div>\n

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What is the steering cylinder’s service life in mining conditions?<\/h3>\n

With 80 \u00b5m chrome and quad-lip wipers, the steering cylinder seal life is typically 8,000\u201312,000 hours in well-maintained mining applications \u2014 corresponding to 1\u20132 years of continuous operation. The cylinder body itself is designed for the 60,000-hour truck life without barrel or rod replacement. Seal kits are the only planned maintenance item.<\/p>\n<\/p><\/div>\n

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How does the mining steering cylinder compare to the mobile crane steering cylinder?<\/h3>\n

The crane steering cylinder (#23) has a finer bore finish (Ra 0.1 \u00b5m, for response sensitivity), operates on paved roads, and is ordered in sets of up to 18. The mining steering cylinder has thicker chrome (80 \u00b5m, for dust resistance), operates on unpaved haul roads with 3\u20135\u00d7 higher surface friction, and produces up to 779 KN of thrust \u2014 far more than any crane steering cylinder. Browse telescopic cylinders<\/a> and industrial engineering cylinders<\/a>.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n

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Related Categories<\/span><\/h2>\n
<\/p>\n
\n
\"Telescopic\"<\/div>\n
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Telescopic Hydraulic Cylinders \u2192<\/div>\n
Dump truck, trailer, hoist.<\/div>\n<\/div>\n<\/div>\n

<\/a><\/p>\n

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\"Forklift\"<\/div>\n
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Forklift Hydraulic Cylinders \u2192<\/div>\n
Lift, tilt, steer \u2014 OEM.<\/div>\n<\/div>\n<\/div>\n

<\/a><\/p>\n

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\"AWV\"<\/div>\n
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Aerial Work Vehicle Cylinders \u2192<\/div>\n
Scissor, boom, platforms.<\/div>\n<\/div>\n<\/div>\n

<\/a><\/div>\n<\/section>\n

<\/main><\/p>","protected":false},"excerpt":{"rendered":"

Mining dump truck steering cylinder \u2014 provides steering assistance for the wheels and chassis of mining haul trucks. On rigid-frame trucks, the cylinders turn the front wheels like a conventional truck. On articulated trucks, the cylinders pivot the entire front chassis section relative to the rear \u2014 steering a 200\u2013600 tonne machine through mine-site switchbacks and loading areas. Bore 63\u2013210 mm, stroke \u22642,000 mm, maximum thrust 779 KN. The steering force required for a 600-tonne fully loaded truck on an unpaved haul road far exceeds any on-highway vehicle. Korea Ever-Power. ISO 9001. OEM & ODM.<\/div>","protected":false},"featured_media":2594,"comment_status":"closed","ping_status":"open","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[854],"product_tag":[],"class_list":["post-2593","product","type-product","status-publish","has-post-thumbnail","product_cat-mobile-machinery-hydraulic-cylinders","pa_editor-cxm","first","instock","product-type-simple"],"_links":{"self":[{"href":"https:\/\/hydrauliccylindersprice.com\/pt\/wp-json\/wp\/v2\/product\/2593","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hydrauliccylindersprice.com\/pt\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hydrauliccylindersprice.com\/pt\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/pt\/wp-json\/wp\/v2\/comments?post=2593"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/pt\/wp-json\/wp\/v2\/media\/2594"}],"wp:attachment":[{"href":"https:\/\/hydrauliccylindersprice.com\/pt\/wp-json\/wp\/v2\/media?parent=2593"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/pt\/wp-json\/wp\/v2\/product_brand?post=2593"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/pt\/wp-json\/wp\/v2\/product_cat?post=2593"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/pt\/wp-json\/wp\/v2\/product_tag?post=2593"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}