{"product_id":"cylinder-pf-630-dump-bed-cylinder-replacement","title":"Cylinder PF-630 Dump Bed Cylinder Replacement.","description":"\u003ch2\u003e\u003cstrong\u003ePrimary Mover PF-630 Replacement Hydraulic Cylinder – Heavy-Duty Dump Trailer Scissor Hoist\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003e\n  \u003cstrong\u003eReplacement hydraulic cylinder for the Primary Mover PF-630 heavy-duty dump trailer scissor hoist.\u003c\/strong\u003e\u003cbr\u003e\n  This hydraulic cylinder is designed as a replacement for the cylinder used in the \u003cstrong\u003ePrimary Mover PF-630 wide heavy-frame dump hoist system\u003c\/strong\u003e. It features a 6.5-inch diameter, extended 30-inch stroke, and upgraded \u003cstrong\u003e10 mm (0.394\") cylinder wall\u003c\/strong\u003e engineered for large dump bodies, heavy trailers, and demanding hydraulic applications.\n\u003c\/p\u003e\n\n\u003cdiv style=\"border: 2px solid #cc0000; padding: 14px; margin: 18px 0;\"\u003e\n  \u003cp style=\"margin: 0;\"\u003e\n    \u003cstrong\u003eIMPORTANT FITMENT NOTICE:\u003c\/strong\u003e This replacement cylinder is designed specifically for the \u003cstrong\u003ePrimary Mover PF-630 hoist\u003c\/strong\u003e. Primary Mover does not recommend installing this cylinder on another manufacturer's dump hoist or scissor hoist. Cylinder stroke, closed length, mounting locations, pivot points, dump angle, frame geometry, and other engineering dimensions are critical to proper hoist operation. A cylinder that appears similar or physically fits is not necessarily compatible or safe for another manufacturer's system.\n  \u003c\/p\u003e\n  \u003cp style=\"margin-bottom: 0;\"\u003e\n    \u003cstrong\u003eAfter purchase, Primary Mover may contact you to confirm that this cylinder is being ordered for a compatible Primary Mover PF-630 hoist before the order is released.\u003c\/strong\u003e\n  \u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\n  \u003cstrong\u003eDesigned for the Primary Mover PF-630\u003c\/strong\u003e\u003cbr\u003e\n  This cylinder is intended specifically as a replacement component for the Primary Mover PF-630 hydraulic dump trailer scissor hoist.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003cstrong\u003eLargest Cylinder in the Current Primary Mover Scissor Hoist Line\u003c\/strong\u003e\u003cbr\u003e\n  The PF-630 represents the largest scissor-hoist cylinder currently offered in the Primary Mover lineup and is designed for larger dump bodies and demanding heavy-duty truck and trailer applications.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003cstrong\u003e6.5-Inch Diameter \u0026amp; 30-Inch Stroke\u003c\/strong\u003e\u003cbr\u003e\n  The PF-630 cylinder combines a large 6.5-inch diameter with an extended 30-inch stroke. The cylinder size and travel are matched to the PF-630 hoist geometry to provide the intended lifting characteristics, dump angle, and operating range of the complete system.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003cstrong\u003eUpgraded 10 mm \/ 0.394\" Heavy-Wall Construction\u003c\/strong\u003e\u003cbr\u003e\n  The PF-630 uses an approximately \u003cstrong\u003e10 mm (0.394\") cylinder wall thickness\u003c\/strong\u003e. This heavier cylinder tube provides increased resistance to expansion under hydraulic pressure and is designed for the higher loads and demanding duty cycles associated with larger dump bodies and heavy-duty hydraulic applications.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003cstrong\u003eDesigned for High Hydraulic Pressure\u003c\/strong\u003e\u003cbr\u003e\n  The heavy-wall cylinder construction is designed to withstand hydraulic system pressures up to approximately \u003cstrong\u003e3,200 PSI\u003c\/strong\u003e without excessive cylinder tube deformation under normal intended operation.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003cstrong\u003eHeavy-Duty PF-630 Hoist Performance\u003c\/strong\u003e\u003cbr\u003e\n  When used as part of the complete Primary Mover PF-630 hoist system, lifting performance can range from approximately \u003cstrong\u003e12 to 15.4 tons\u003c\/strong\u003e depending on dump angle, body length, load position, hydraulic pressure, mounting geometry, and overall trailer or truck setup.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003cstrong\u003eReplacement for Worn or Damaged PF-630 Cylinders\u003c\/strong\u003e\u003cbr\u003e\n  Ideal for servicing an existing Primary Mover PF-630 scissor hoist when the hoist structure remains serviceable but the hydraulic cylinder requires replacement.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Primary Mover PF-630 Wide Heavy-Frame Scissor Hoist\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Replacement Hydraulic Cylinder\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCylinder Diameter:\u003c\/strong\u003e 6.5\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStroke:\u003c\/strong\u003e 30\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCylinder Wall Thickness:\u003c\/strong\u003e Approximately 10 mm \/ 0.394\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Hydraulic Pressure:\u003c\/strong\u003e Approximately 3,200 PSI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTypical Hoist Lift Range:\u003c\/strong\u003e Approximately 12 to 15.4 tons depending on dump angle, body length, mounting geometry, load position, hydraulic pressure, and overall trailer or truck setup\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Primary Mover PF-630 hoist systems only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\n  \u003cstrong\u003eImportant:\u003c\/strong\u003e Dump hoist lifting capacity is not determined by the hydraulic cylinder alone. Actual lifting performance changes throughout the dump cycle and depends heavily on hoist geometry, dump angle, body length, load position, hydraulic pressure, trailer or truck construction, and installation. Refer to the applicable Primary Mover lift data for detailed performance information.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003e\u003cstrong\u003eReplacement Cylinder Only\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\n  This listing includes the \u003cstrong\u003ereplacement hydraulic cylinder only\u003c\/strong\u003e. It is not a complete dump trailer or dump truck conversion kit and does not include the PF-630 scissor hoist frame, hydraulic power unit, hoses, fittings, hinges, or other installation components.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  If you are building a new dump bed or converting an existing trailer or truck body, select the complete Primary Mover PF-630 scissor hoist kit engineered for that application.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003e\u003cstrong\u003eIs the PF-630 cylinder a universal dump trailer hydraulic cylinder?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003e\n    No. The PF-630 replacement cylinder is specifically designed for the Primary Mover PF-630 scissor hoist. It should not be treated as a universal dump trailer cylinder based only on bore size, stroke, mounting style, or physical dimensions.\n  \u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003e\u003cstrong\u003eCan I install this cylinder on another manufacturer's dump hoist?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003e\n    Primary Mover does not recommend installing this cylinder on another manufacturer's hoist. Hydraulic dump hoists depend on specific cylinder mounting points, closed and extended lengths, pivot locations, frame geometry, dump angle, and structural design.\n  \u003c\/p\u003e\n  \u003cp\u003e\n    Installing a cylinder that was not engineered for the original hoist can significantly change the forces applied to the hoist and dump body structure. Primary Mover does not approve or certify compatibility of this cylinder with another manufacturer's system.\n  \u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003e\u003cstrong\u003eWhy does cylinder and hoist geometry matter?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003e\n    Scissor hoists create changing mechanical leverage as the dump body moves through its lifting range. Small differences in cylinder mounting position, stroke, closed length, pivot location, or hoist geometry can substantially change cylinder pressure, structural loading, lifting force, and final dump angle.\n  \u003c\/p\u003e\n  \u003cp\u003e\n    For this reason, matching cylinder diameter and stroke alone is not enough to establish compatibility with another dump hoist.\n  \u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003e\u003cstrong\u003eWhy does hydraulic cylinder wall thickness matter?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003e\n    \u003cstrong\u003eAbsolutely—cylinder wall thickness matters.\u003c\/strong\u003e A hydraulic cylinder tube is repeatedly subjected to internal pressure every time the dump body is raised. Thinner-wall cylinder tubes can be more prone to expanding or flexing under repeated high-pressure operation.\n  \u003c\/p\u003e\n  \u003cp\u003e\n    Over time, excessive tube expansion can affect the relationship between the cylinder bore, piston, and seals, increasing seal wear and potentially contributing to premature seal failure.\n  \u003c\/p\u003e\n  \u003cp\u003e\n    The Primary Mover PF-630 cylinder uses an approximately \u003cstrong\u003e10 mm (0.394\") wall thickness\u003c\/strong\u003e to provide greater resistance to tube expansion and support long-term durability in higher-load dump trailer and dump body applications.\n  \u003c\/p\u003e\n  \u003cp\u003e\n    \u003ca href=\"https:\/\/www.primarymover.com\/pages\/prime-force-cylinder-vs-industry-standard-the-ultimate-wall-thickness-showdown\" target=\"_blank\" rel=\"noopener\"\u003e\n      \u003cstrong\u003eWatch our Hydraulic Cylinder Wall Thickness Comparison Video\u003c\/strong\u003e\n    \u003c\/a\u003e\n  \u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003e\u003cstrong\u003eWhy does the PF-630 use a 10 mm cylinder wall?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003e\n    The PF-630 is designed for some of the largest and most demanding applications in the Primary Mover scissor hoist lineup. Its large 6.5-inch cylinder can generate substantial force at normal hydraulic system pressures.\n  \u003c\/p\u003e\n  \u003cp\u003e\n    The approximately \u003cstrong\u003e10 mm (0.394\") wall thickness\u003c\/strong\u003e provides additional cylinder tube rigidity and helps limit expansion under repeated hydraulic pressure, supporting durability and seal life in demanding applications.\n  \u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003e\u003cstrong\u003eWhat is the advantage of the PF-630's 30-inch stroke?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003e\n    The extended 30-inch stroke is part of the complete PF-630 hoist geometry and provides the travel required for large dump bodies and the intended dump angle of the system.\n  \u003c\/p\u003e\n  \u003cp\u003e\n    The longer stroke should not be treated as a stand-alone upgrade for another hoist. Cylinder travel must be matched to the mounting geometry, pivot locations, frame design, and structural characteristics of the complete dump hoist.\n  \u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003e\u003cstrong\u003eWhat does \"wide heavy-frame\" mean?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003e\n    The PF-630 belongs to Primary Mover's wide heavy-frame scissor hoist series. Compared with smaller standard-frame hoists, this series uses a larger hoist structure designed for bigger dump bodies, heavier loads, and more demanding truck and trailer applications.\n  \u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003e\u003cstrong\u003eIs the PF-630 the largest Primary Mover scissor hoist cylinder?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003e\n    Yes. The PF-630 is currently the largest cylinder used in the Primary Mover scissor hoist lineup, combining a \u003cstrong\u003e6.5-inch diameter with a 30-inch stroke\u003c\/strong\u003e for large-body and heavy-duty applications.\n  \u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003e\u003cstrong\u003eWill Primary Mover confirm fitment before shipping?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003e\n    Primary Mover may contact you after purchase to confirm that the replacement cylinder is being ordered for a Primary Mover PF-630 hoist. This helps prevent incorrect replacement-cylinder purchases and ensures that the component is intended for the correct Primary Mover system.\n  \u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003e\u003cstrong\u003eHow much can the PF-630 hoist lift?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003e\n    The PF-630 system typically operates in approximately the \u003cstrong\u003e12 to 15.4 ton lifting range\u003c\/strong\u003e depending on dump angle, body length, load position, hydraulic pressure, trailer or truck setup, and hoist geometry.\n  \u003c\/p\u003e\n  \u003cp\u003e\n    Hydraulic dump hoist lifting capacity changes throughout the dump cycle. Refer to the Primary Mover lift data chart for more detailed performance information.\n  \u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003e\u003cstrong\u003eDoes dump body length affect lifting capacity?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003e\n    Yes. Dump body length, hoist mounting position, load placement, and the location of the body's center of gravity all affect the mechanical leverage placed on the hoist.\n  \u003c\/p\u003e\n  \u003cp\u003e\n    For that reason, lift capacity should always be evaluated using the applicable Primary Mover lift data and installation requirements for the specific body length and application.\n  \u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003e\u003cstrong\u003eCan I use this cylinder to build my own dump trailer or dump truck hoist?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003e\n    This cylinder is sold as a replacement component for the Primary Mover PF-630 hoist and is not intended as a stand-alone component for designing a custom dump hoist.\n  \u003c\/p\u003e\n  \u003cp\u003e\n    If you are building or converting a dump trailer or dump body, Primary Mover recommends using a complete engineered hoist kit rather than designing a lifting system around an individual replacement cylinder.\n  \u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003e\u003cstrong\u003eDo I need to replace the entire PF-630 hoist if my cylinder is damaged?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003e\n    Not necessarily. If your existing Primary Mover PF-630 hoist frame, pivot points, mounting structure, and related components remain in serviceable condition, this replacement cylinder may allow you to repair the hoist without replacing the complete assembly.\n  \u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003e\u003cstrong\u003eIs this the complete PF-630 dump bed kit?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003e\n    No. This listing is for the replacement hydraulic cylinder only. The complete PF-630 dump hoist kit includes the engineered wide heavy-frame scissor hoist structure and additional components required for a complete dump body installation.\n  \u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003e\u003cstrong\u003eWhy Choose Primary Mover Replacement Components?\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorrect Fitment:\u003c\/strong\u003e Replacement components designed around the geometry of the original Primary Mover PF-630 hoist.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e10 mm Heavy-Wall Construction:\u003c\/strong\u003e Approximately 10 mm \/ 0.394\" cylinder wall designed to better resist tube expansion under hydraulic pressure.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtended 30-Inch Stroke:\u003c\/strong\u003e Matched specifically to the PF-630 wide heavy-frame hoist geometry.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeavy-Duty 6.5-Inch Cylinder:\u003c\/strong\u003e Built for large dump trailer and dump body applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication Support:\u003c\/strong\u003e Our team can help identify the correct replacement component for your Primary Mover system.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHydraulic Expertise:\u003c\/strong\u003e Purpose-built hydraulic components backed by real-world dump trailer and dump body experience.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\n  \u003cstrong\u003eRestore your Primary Mover PF-630 wide heavy-frame dump hoist with the heavy-duty replacement hydraulic cylinder engineered for the original system.\u003c\/strong\u003e\n\u003c\/p\u003e","brand":"Primary Mover","offers":[{"title":"Default Title","offer_id":43382456910006,"sku":"PF-630-H-CYL","price":849.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1169\/7506\/files\/8_80c09354-de0a-404e-b7c6-d4159e5058bd.jpg?v=1789039651","url":"https:\/\/www.primarymover.com\/products\/cylinder-pf-630-dump-bed-cylinder-replacement","provider":"Primary Mover","version":"1.0","type":"link"}