{"id":2430,"date":"2026-06-30T08:59:20","date_gmt":"2026-06-30T08:59:20","guid":{"rendered":"https:\/\/hydrauliccylindersprice.com\/product\/tractor-oil-cylinder\/"},"modified":"2026-06-30T08:59:28","modified_gmt":"2026-06-30T08:59:28","slug":"tractor-oil-cylinder","status":"publish","type":"product","link":"https:\/\/hydrauliccylindersprice.com\/nl\/product\/tractor-oil-cylinder\/","title":{"rendered":"Tractor Oil Cylinder"},"content":{"rendered":"

<\/p>\n

<\/p>\n

\n
\n
\n Agricultural Machinery<\/span>
\n Tractor Oil Cylinder \u00b7 HSG Series<\/span>\n <\/div>\n

From the Factory Floor
to the Open Field<\/h2>\n

Thirty-four cylinders in this catalogue operate indoors \u2014 in climate-controlled factories, heated press frames, or enclosed mill housings. The tractor oil cylinder works in a different world: ploughing in freezing rain, grading under a July sun, loading in knee-deep mud. No heat shields, no dust extraction, no roof. The cylinder is the only hydraulic component fully exposed to the sky \u2014 and it must deliver 3,000\u20135,000 hours of field service per year without failure.<\/p>\n

\n
\n
HSG<\/div>\n
Series Standard<\/div>\n<\/div>\n
\n
Double<\/div>\n
Acting<\/div>\n<\/div>\n
\n
Multi<\/div>\n
Bore \/ Stroke \/ Mount<\/div>\n<\/div>\n
\n
-30~+50\u00b0C<\/div>\n
Operating Range<\/div>\n<\/div><\/div>\n<\/p><\/div>\n<\/section>\n

<\/p>\n

\n

One Tractor, Many Cylinders \u2014 Where Each One Works<\/h2>\n

A modern tractor uses 4\u201312 hydraulic cylinders simultaneously \u2014 far more than any single industrial machine in this catalogue. Each cylinder serves a different function, with different bore, stroke, and mounting requirements:<\/p>\n

\n
\n 3-point hitch lift cylinders (2)<\/strong><\/p>\n

Raise and lower the rear-mounted implement (plough, disc harrow, seeder). The most heavily loaded tractor cylinders \u2014 lifting 2\u20138 tonnes of implement weight against gravity. Short stroke (200\u2013400 mm), high force, clevis or pin mounting.<\/p>\n<\/p><\/div>\n

\n Front loader cylinders (2\u20134)<\/strong><\/p>\n

Raise\/lower the boom and tilt the bucket. The loader sees the highest impact loads \u2014 scooping into a pile of gravel or manure creates shock forces 2\u20133\u00d7 the static load. Medium bore, medium stroke (400\u2013800 mm), pin mounting with spherical bearings.<\/p>\n<\/p><\/div>\n

\n Steering cylinder (1\u20132)<\/strong><\/p>\n

Turns the front wheels via the steering linkage. Small bore, short stroke, but the fastest-cycling cylinder on the tractor \u2014 the driver makes continuous small corrections all day. Low friction seals are critical for steering feel and precision.<\/p>\n<\/p><\/div>\n

\n Remote implement cylinders (1\u20134)<\/strong><\/p>\n

Control the implement’s own functions \u2014 plough depth, disc angle, seeder height, sprayer boom fold. Connected to the tractor’s remote hydraulic couplers. These cylinders live on the implement, not on the tractor itself \u2014 but the tractor supplies the hydraulic power.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n

Korea Ever-Power manufactures the HSG series tractor oil cylinder in all bore, stroke, and mounting combinations needed for these applications \u2014 from compact steering cylinders to heavy-duty 3-point hitch lifters. Browse the full industrial engineering hydraulic cylinder<\/a> range.<\/p>\n<\/section>\n

<\/p>\n

\n \"Tractor
\n<\/section>\n

<\/p>\n

\n

Outdoor Survival \u2014 What the Factory Cylinders Never Face<\/h2>\n
\n \"Tractor<\/p>\n

Every indoor industrial cylinder in this catalogue operates in a controlled environment \u2014 a factory building with a roof, walls, and (usually) filtered air. The tractor oil cylinder has none of these protections. The rod, barrel, ports, and hose connections are fully exposed to every element the field delivers.<\/p>\n

Temperature extremes.<\/strong> Operating range -30 \u00b0C (winter ploughing in northern climates) to +50 \u00b0C (summer harvesting in hot regions). The hydraulic oil must remain fluid at -30 \u00b0C and not overheat at +50 \u00b0C. Seals must maintain elasticity across this 80 \u00b0C span \u2014 NBR compounds rated for -30 \u00b0C to +100 \u00b0C are standard.<\/p>\n

Water, mud, and abrasives.<\/strong> The rod extends into a splash zone of soil, water, crop residue, and fertiliser chemicals. Mud packed around the rod seal hardens and acts as a grinding compound when the rod retracts. Double-lip wipers and heavy chrome plating (50\u201380 \u00b5m) are essential \u2014 the same level of protection used on cement cylinders, but for different contaminants.<\/p>\n

Impact and vibration.<\/strong> Driving over ploughed fields at 8\u201315 km\/h transmits continuous high-amplitude vibration through the tractor frame into every cylinder. Impact loading from hitting stones, roots, or frozen ground adds shock spikes on top of the vibration baseline. Pin joints, clevis mounts, and barrel welds must all be fatigue-rated for this combined loading \u2014 a challenge that no indoor industrial cylinder faces.<\/p>\n<\/p><\/div>\n

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

<\/p>\n

\n
\n

HSG Series \u2014 The Agricultural Cylinder Standard<\/h2>\n

The HSG series is a standardised range of double-acting hydraulic cylinders designed specifically for agricultural and mobile equipment. Unlike the custom-engineered industrial cylinders (#1\u2013#34) which are sized for a specific machine, the HSG series offers a catalogue of pre-defined bore\/stroke\/mounting combinations that tractor OEMs and implement manufacturers select from.<\/p>\n

\n
\n Bore range<\/strong><\/p>\n

Multiple standard bore diameters in the HSG series \u2014 from compact cylinders for steering and small implements to large-bore cylinders for heavy 3-point hitch and loader applications. Each bore size has a defined speed ratio (bore area \u00f7 rod-side annular area) that determines the extend\/retract speed balance.<\/p>\n<\/p><\/div>\n

\n Mounting options<\/strong><\/p>\n

Clevis (tang or eye) at both ends for pin-connected installations. Cross tube (through-pin at the barrel end). Trunnion (pivot pins on the barrel mid-section for swinging motion). Flange (bolted to the tractor frame). Each mounting type suits different installation geometries \u2014 the OEM selects the combination that fits the tractor’s linkage.<\/p>\n<\/p><\/div>\n

\n Stroke to order<\/strong><\/p>\n

The stroke is manufactured to the OEM’s specification \u2014 not constrained to a fixed catalogue value. Any stroke within the series’ design envelope is available. This flexibility allows tractor and implement builders to specify the exact stroke needed for their linkage geometry without the cost of a fully custom cylinder design. Contact the hydraulic cylinder engineering team<\/a> for HSG series specifications.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n

<\/p>\n

\n

Field Serviceability \u2014 Repair in the Barn, Not the Factory<\/h2>\n

Industrial cylinders are repaired in workshops with overhead cranes, clean benches, and specialised tooling. Tractor cylinders are repaired in farm barns \u2014 or beside the field \u2014 with hand tools, a bench vice, and whatever the farmer has available. The cylinder’s design must accommodate this reality:<\/p>\n

\n
\n Removable gland \u2014 no special tools<\/strong><\/p>\n

The rod gland is threaded or snap-ring retained \u2014 removable with standard wrenches or pliers. No hydraulic press, no bearing puller, no factory fixtures. A farmer or local mechanic can pull the gland, replace the seal kit, and reassemble the cylinder in 1\u20132 hours with basic hand tools.<\/p>\n<\/p><\/div>\n

\n Standard seal kits \u2014 locally available<\/strong><\/p>\n

The HSG series uses standard metric seal sizes that are stocked by agricultural parts dealers worldwide. A seal kit for a common bore size can be purchased over the counter at a farm supply store \u2014 no need to order from the cylinder manufacturer and wait weeks for delivery. This parts availability is critical during planting and harvest seasons when downtime costs the most.<\/p>\n<\/p><\/div>\n

\n Robust, forgiving design<\/strong><\/p>\n

Wider seal grooves, heavier rod chrome, thicker barrel walls \u2014 the tractor cylinder is designed with more margin than a precision industrial cylinder. This margin absorbs the reality of field service: minor rod scratches from stone impacts, slightly misaligned reassembly, and less-than-perfectly-clean working conditions during seal replacement.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n

<\/p>\n

\n \"HSG
\n<\/section>\n

<\/p>\n

\n

Manufacturing \u2014 Volume Production for Agricultural OEMs<\/h2>\n
\n \"Korea<\/p>\n

The tractor oil cylinder is manufactured in higher volumes than any custom industrial cylinder \u2014 agricultural OEMs order in batches of hundreds or thousands, not singles or pairs. Korea Ever-Power’s HSG production line is optimised for this volume: standardised bore tooling, batch honing, automated chrome plating, and pre-assembled seal kits that reduce assembly time per unit.<\/p>\n

The bore is honed to Ra 0.2\u20130.4 \u00b5m \u2014 the same Korea Ever-Power standard applied to every cylinder in this catalogue. Chrome plating is 50\u201380 \u00b5m \u2014 towards the heavier end of the range because the rod is exposed to outdoor abrasives. All external steel surfaces receive a corrosion-protective finish (paint, powder coat, or zinc plate) rated for outdoor agricultural service.<\/p>\n

Every tractor oil cylinder is hydrostatic tested at 1.5\u00d7 working pressure. For large-volume OEM orders, Korea Ever-Power also performs random-sample endurance testing \u2014 cycling a percentage of each production batch through 100,000+ extend-retract cycles to verify seal and bearing life under accelerated test conditions.<\/p>\n<\/p><\/div>\n

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

<\/p>\n

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OEM & ODM<\/h2>\n
\n
\n
\n

What You Provide<\/h3>\n<\/div>\n
\n

Bore diameter, rod diameter (or speed ratio preference), stroke, mounting type (clevis\/cross tube\/trunnion\/flange), pin diameters, port thread standard (metric, BSP, or SAE), working pressure, annual volume, and the tractor or implement linkage drawing. For replacement orders: the existing cylinder’s dimensions or part number.<\/p>\n<\/div><\/div>\n

\n
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What the Factory Delivers<\/h3>\n<\/div>\n
\n

Engineering drawing (or approval of OEM drawing), bore\/rod\/stroke per specification, mounting hardware, seal specification (NBR for standard, FKM optional for high-temperature applications), external corrosion protection, and hydrostatic test certificate. Seal kits for aftermarket service. Volume pricing available. Browse the complete industrial and agricultural cylinder range<\/a> and the full hydraulic cylinder product catalogue<\/a>.<\/p>\n<\/div><\/div>\n<\/p><\/div>\n<\/section>\n

<\/p>\n

\n

FAQ<\/h2>\n
\n
\n

How does a tractor cylinder differ from an industrial cylinder?<\/h3>\n

Industrial cylinders are designed for specific machines with known, repeatable loads in controlled environments. Tractor cylinders are designed for unpredictable loads (stone impacts, frozen ground), extreme temperatures (-30 to +50 \u00b0C), continuous vibration, and field serviceability with basic tools. The tractor cylinder uses wider tolerances, heavier chrome, more robust mounting hardware, and locally-available standard seal sizes \u2014 trading precision for ruggedness and serviceability.<\/p>\n<\/p><\/div>\n

\n

Can the HSG series cylinder be used on non-tractor equipment?<\/h3>\n

Yes \u2014 the HSG series is used on any mobile or outdoor hydraulic equipment: construction mini-excavators, skid-steer loaders, utility vehicles, forestry equipment, marine deck machinery, and trailer hydraulics. Any application that needs a double-acting cylinder in an outdoor environment can use the HSG series. For indoor industrial applications, the custom-engineered cylinders elsewhere in this catalogue (#1\u2013#34) provide the application-specific optimisation that the HSG series trades for versatility.<\/p>\n<\/p><\/div>\n

\n

What other agricultural cylinders does Korea Ever-Power manufacture?<\/h3>\n

In addition to the tractor oil cylinder, Korea Ever-Power manufactures the turnover plough cylinder<\/a> (#36), the excavator cylinder (#37), the electric forklift cylinder (#38), and the harvester cylinder (#39 \u2014 ZG and HSG series). Browse the full hydraulic cylinder product range<\/a> including forklift cylinders<\/a> and telescopic cylinders<\/a>.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n

<\/p>\n

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

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

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

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

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

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

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

Tractor oil cylinder \u2014 the first outdoor, mobile-equipment cylinder in this catalogue. After 34 indoor industrial cylinders (forging presses, furnaces, cement mills, injection moulding, vulcanizing), the tractor oil cylinder operates in a completely different world: open fields, rain, mud, frost, stone impacts, and 12-hour days of continuous vibration over rough terrain. HSG series double-acting construction, available in a wide range of bore, stroke, and mounting configurations to fit the tractor’s 3-point hitch, front loader, steering system, and implement control circuits. Korea Ever-Power. ISO 9001. OEM & ODM.<\/div>","protected":false},"featured_media":2431,"comment_status":"closed","ping_status":"open","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[852],"product_tag":[],"class_list":["post-2430","product","type-product","status-publish","has-post-thumbnail","product_cat-industrial-engineering-hydraulic-cylinders","pa_editor-cxm","first","instock","product-type-simple"],"_links":{"self":[{"href":"https:\/\/hydrauliccylindersprice.com\/nl\/wp-json\/wp\/v2\/product\/2430","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hydrauliccylindersprice.com\/nl\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hydrauliccylindersprice.com\/nl\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/nl\/wp-json\/wp\/v2\/comments?post=2430"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/nl\/wp-json\/wp\/v2\/media\/2431"}],"wp:attachment":[{"href":"https:\/\/hydrauliccylindersprice.com\/nl\/wp-json\/wp\/v2\/media?parent=2430"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/nl\/wp-json\/wp\/v2\/product_brand?post=2430"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/nl\/wp-json\/wp\/v2\/product_cat?post=2430"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/nl\/wp-json\/wp\/v2\/product_tag?post=2430"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}