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![\"HH-YG45_220-V90](\"https:\/\/ever-powers.com\/wp-content\/uploads\/2026\/08\/HH-YG45_220-V90-Combine-Hydraulic-Cylinders.webp\" "\\"\\"")
<\/div>\nModel: HH-YG45_220-V90<\/p>\n
HH-YG45_220-V90 Combine Hydraulic Cylinder<\/h2>\n
A precision-engineered combine hydraulic cylinder<\/strong> built for the mechanical demands of modern grain harvesting. With a 55 mm bore, 40 mm rod, and 220 mm stroke, the HH-YG45_220-V90 delivers controlled, repeatable force output in header lift and frame positioning applications where fractions of a millimetre matter to crop throughput.<\/p>\n <\/p>\n Key Specifications<\/p>\n <\/p>\n Combine harvesters operate in conditions that would expose a mediocre hydraulic cylinder within a single season \u2014 high vibration from the threshing drum, contaminated fluid environments, and continuous duty cycles that run from sunrise to well past sunset during peak harvest. The HH-YG45_220-V90 is purpose-built for this environment, specifically for the actuation systems that control header position, reel height, and ancillary frame adjustments on mid-to-large-frame combines.<\/p>\n The 55 mm bore is the pivotal parameter here. At typical combine hydraulic system pressures of 140\u2013180 bar, a 55 mm bore generates a push force in the range of 3,300\u20134,240 N. That’s more than sufficient to lift and hold a 15\u201320 ft grain header while the machine negotiates uneven field terrain without constant operator correction. The 40 mm rod diameter \u2014 a 73% rod-to-bore ratio \u2014 keeps buckling risk negligible across the full 220 mm stroke, even under lateral loading from header sway.<\/p>\n The V90 suffix designates the end-cap geometry and port orientation specific to this variant, ensuring that this cylinder integrates directly into OEM-compatible bracket and hose routing configurations without field modifications.<\/p>\n <\/p>\n HH-YG45_220-V90 is suited for mid-to-large frame combines in grain and rice harvesting.<\/p>\n<\/div>\n <\/p>\n Engineering data without context is just numbers. Here’s what each parameter of the HH-YG45_220-V90 means in practical combine operation:<\/p>\n All four dimensions work together as a system. Altering any one of them changes the force delivery, the travel envelope, or the mechanical compatibility \u2014 which is why OEM-matched specifications like the HH-YG45_220-V90 exist as distinct part numbers rather than generic agricultural hydraulic cylinders.<\/p>\n <\/p>\n The barrel of the HH-YG45_220-V90 is produced from precision-honed seamless tubing with a bore surface roughness of Ra \u2264 0.4 \u00b5m \u2014 the finish specification required for polyurethane and NBR piston seals to achieve full hydrodynamic lubrication without micro-stick-slip during slow controlled movements. Header auto-levelling systems, which make constant small corrections at low velocity, are particularly sensitive to this: a rough bore surface causes jerky response that the operator feels as hunting behaviour.<\/p>\n The chrome-plated piston rod achieves a minimum chrome thickness of 25 \u00b5m with a hardness of 850\u20131000 HV. In field conditions, rod surfaces contact airborne abrasive dust (typical in cereal grain harvest) and occasional droplet impingement from spray nozzles on self-propelled sprayers working adjacent rows. The hard chrome layer resists this abrasive wear cycle, protecting the rod wiper seal from premature failure \u2014 the most common point of leakage in combine cylinders used in sandy or silty soils.<\/p>\n End caps are machined from ductile iron or carbon steel, with port threads conforming to BSP or ORFS standards depending on the specific machine platform. Clevis and pin bore dimensions are machined to H7 tolerance, ensuring a fit that prevents bush slap and the fretting corrosion that causes bracket wear on high-cycle cylinders.<\/p>\n <\/p>\n The HH-YG45_220-V90 is designed as a direct-fit replacement or OEM-equivalent cylinder for combine platforms that share the 55\/40\/220\/385 dimension set. Typical replacement scenarios include:<\/p>\n If you are uncertain whether this cylinder matches your combine platform, we can cross-reference against your machine model number, existing cylinder part number, or dimensional measurements taken from the installed cylinder.<\/p>\n <\/p>\n <\/p>\n Ready to Source the HH-YG45_220-V90?<\/p>\n We supply combine hydraulic cylinders to agricultural equipment distributors, OEM assembly lines, and fleet maintenance operations worldwide. Contact us for bulk pricing, lead time confirmation, or to request a certified dimensional drawing.<\/p>\n
\nRod Diameter<\/span>40 mm<\/span>
\nStroke<\/span>220 mm<\/span>
\nMounting Length<\/span>385 mm<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\nWhat the HH-YG45_220-V90 Agricultural Hydraulic Cylinder Is Designed to Do<\/h2>\n
![\"Combine](\"https:\/\/ever-powers.com\/wp-content\/uploads\/2026\/08\/Combine-harvesters.webp\" "\\"\\"")
<\/p>\nHH-YG45 220 V90 Combine Hydraulic Cylinder Specifications: Why Each Dimension Matters<\/h2>\n
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Construction and Sealing: Built for Long-Season Field Reliability<\/h2>\n
Compatible Applications and Replacement Scenarios for Harvest Cylinder Sourcing<\/h2>\n
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Complete Technical Specifications<\/h2>\n
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\n \n\u041f\u0430\u0440\u0430\u043c\u0435\u0442\u0440<\/th>\n \u049a\u04b1\u043d\u0434\u044b\u043b\u044b\u049b<\/th>\n<\/tr>\n<\/thead>\n \n \u041c\u043e\u0434\u0435\u043b\u044c \u043d\u04e9\u043c\u0456\u0440\u0456<\/td>\n HH-YG45_220-V90<\/td>\n<\/tr>\n \n Bore Diameter<\/td>\n 55 mm<\/td>\n<\/tr>\n \n Rod Diameter<\/td>\n 40 mm<\/td>\n<\/tr>\n \n Stroke<\/td>\n 220 mm<\/td>\n<\/tr>\n \n Closed Length (C\u2013C)<\/td>\n 385 mm<\/td>\n<\/tr>\n \n Cylinder Type<\/td>\n Double-acting<\/td>\n<\/tr>\n \n \u049a\u043e\u043b\u0434\u0430\u043d\u0431\u0430<\/td>\n Combine header \/ frame positioning<\/td>\n<\/tr>\n \n Rod Surface<\/td>\n Hard chrome plated (\u226525 \u00b5m)<\/td>\n<\/tr>\n \n Port Thread<\/td>\n BSP \/ ORFS (specify on order)<\/td>\n<\/tr>\n \n MOQ<\/td>\n 1 pc (sample); bulk pricing from 10 pcs<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n