{"id":2303,"date":"2026-06-29T06:01:59","date_gmt":"2026-06-29T06:01:59","guid":{"rendered":"https:\/\/hydrauliccylindersprice.com\/?post_type=product&p=2303"},"modified":"2026-06-29T06:01:59","modified_gmt":"2026-06-29T06:01:59","slug":"low-price-double-acting-small-dump-truck-telescopic-hydraulic-cylinder","status":"publish","type":"product","link":"https:\/\/hydrauliccylindersprice.com\/bg\/product\/low-price-double-acting-small-dump-truck-telescopic-hydraulic-cylinder\/","title":{"rendered":"Low Price Double Acting Small Dump Truck Telescopic Hydraulic Cylinder"},"content":{"rendered":"
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<\/p>\n

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CONVERSION GUIDE<\/span>
\nSINGLE \u2192 DOUBLE ACTING<\/span><\/div>\n
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Single \u2192 Double Acting
\nConversion Guide
\nSmall Dump Truck \u2014 What Changes, What Stays<\/span><\/h2>\n

Your small dump truck’s single-acting telescopic cylinder<\/a> no longer retracts reliably \u2014 the dump body sticks in the raised position, especially on cold mornings or after loading lightweight aluminium bodies. The fix is a double-acting cylinder. This page explains exactly what needs to change and what can stay in your existing hydraulic system.<\/p>\n<\/div>\n

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Upgrade<\/span>SA \u2192 DA<\/span><\/div>\n
Bore<\/span>2\u20136\u2033<\/span><\/div>\n
Stroke<\/span>4\u2013100\u2033<\/span><\/div>\n
Pricing<\/span>Factory Direct<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

Converting a small dump truck from single-acting to double-acting is a common retrofit \u2014 not a major rebuild. The cylinder itself is a direct dimensional replacement (same bore, stroke, stage count, and mounting points), but the hydraulic circuit needs three specific changes: a new control valve, an additional hose line, and a verification that the pump and reservoir can support the double-acting circuit. This page walks through each change, explains the cost implications, and provides a practical project budget framework for small truck fleet operators.<\/p>\n<\/section>\n

\"Telescopic<\/p>\n

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Low Price DA Small Dump Truck Cylinder \u2014 Customisation Parameters<\/h2>\n
\n\n\n\n\n\n\n\n\n
Acting Type<\/td>\nDouble-acting (upgrade from single-acting)<\/td>\n<\/tr>\n
Bore \/ Rod \/ Stroke \/ Pin<\/td>\n2\u20136\u2033 \/ 1.125\u20134\u2033 \/ 4\u2013100\u2033 \/ 0.5\u20132\u2033 (match existing)<\/td>\n<\/tr>\n
Port Options<\/td>\nG \/ SAE \/ NPT \/ M \u2014 two ports (was one)<\/td>\n<\/tr>\n
Dimensional Compatibility<\/td>\nSame retracted length \u00b110-25 mm as single-acting<\/td>\n<\/tr>\n
Body \/ Certification<\/td>\nSteel \/ ISO 9001 \/ dual-circuit tested<\/td>\n<\/tr>\n
Lead Time \/ Warranty<\/td>\n25\u201335 days \/ 1 year<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n

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\"Single<\/section>\n

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Conversion Checklist \u2014 What Must Change and What Can Stay<\/h2>\n

Converting from single-acting to double-acting requires changing three components and verifying two more. Most of the existing hydraulic system \u2014 the pump, reservoir, and mounting hardware \u2014 typically stays in place. Understanding this scope before you start prevents surprises during the conversion.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n
Component<\/th>\nAction<\/th>\nDetails<\/th>\n<\/tr>\n<\/thead>\n
Telescopic cylinder<\/td>\nREPLACE<\/td>\nNew double-acting cylinder \u2014 same bore, stroke, stages as old single-acting<\/td>\n<\/tr>\n
Directional control valve<\/td>\nREPLACE<\/td>\n3-way \u2192 4-way (4\/3) directional control valve<\/td>\n<\/tr>\n
Retract hose line<\/td>\nADD NEW<\/td>\nNew hose from valve retract port to cylinder retract port<\/td>\n<\/tr>\n
Hydraulic pump<\/td>\nVERIFY<\/td>\nUsually stays \u2014 verify flow and pressure are adequate<\/td>\n<\/tr>\n
Reservoir<\/td>\nVERIFY<\/td>\nUsually stays \u2014 verify capacity covers DA cylinder displacement<\/td>\n<\/tr>\n
Extend hose line<\/td>\nKEEP<\/td>\nExisting extend hose stays \u2014 same port, same function<\/td>\n<\/tr>\n
Mounting brackets & pins<\/td>\nKEEP<\/td>\nSame bore\/stroke\/stage = same mounting dimensions<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n

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Step-by-Step Conversion Procedure<\/h2>\n

\"Double<\/p>\n

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Step 1 \u2014 Measure the Existing Cylinder<\/strong><\/p>\n

Before ordering the double-acting replacement, measure the existing single-acting cylinder: bore diameter, rod diameter, total stroke, retracted length, pin diameters (both ends), and extend port thread. These dimensions transfer directly to the new double-acting cylinder \u2014 the bore, stroke, stages, and mounting points stay the same. Provide these measurements when ordering from Korea Ever-Power. Also note the available space around the cylinder mounting point \u2014 the double-acting cylinder adds 10\u201325 mm to the retracted length and includes a second port that needs hose clearance.<\/p>\n<\/div>\n

Step 2 \u2014 Order Components: Cylinder + Valve + Hose<\/strong><\/p>\n

Order all three components simultaneously so they arrive together: (1) the double-acting telescopic hydraulic cylinder<\/a> from Korea Ever-Power, (2) a 4-way (4\/3) directional control valve from your hydraulic component supplier \u2014 match the valve port size to your pump flow and match the valve centre position to your application (closed centre for hold, float centre for auto-lower), and (3) a hydraulic hose of the correct length, fitting thread, and pressure rating for the retract line.<\/p>\n<\/div>\n

Step 3 \u2014 Remove Old Cylinder and Single-Acting Valve<\/strong><\/p>\n

Support the dump body with safety props. Disconnect the extend hose from the old cylinder and cap it. Remove the old cylinder from the mounting brackets. Remove the old 3-way control valve. Cap all open hydraulic line ends immediately \u2014 contamination entering during conversion is the most common cause of early seal failure on the new cylinder.<\/p>\n<\/div>\n

Step 4 \u2014 Install New Components and Bleed<\/strong><\/p>\n

Install the new 4-way valve in the valve mounting position. Install the new double-acting cylinder in the brackets. Connect the existing extend hose to the cylinder extend port. Connect the new retract hose from the valve retract port to the cylinder retract port \u2014 route the hose along the frame with clamps to prevent chafing. Fill and bleed the system by cycling the cylinder 10+ times at no load (dump body empty). Verify extend, hold, and retract functions all work correctly before loading the truck.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Conversion Budget Framework \u2014 What the Complete Project Costs<\/h2>\n

The cylinder is typically 50\u201365% of the total conversion cost. The remaining 35\u201350% covers the valve, hose, fittings, and labour. Knowing all five cost categories lets you budget the complete project accurately \u2014 and avoid the unpleasant surprise of discovering you need a valve and hose on top of the cylinder. Korea Ever-Power offers the cylinder at competitive hydraulic cylinder pricing<\/a> factory-direct, which keeps the largest cost component as low as possible.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
Cost Category<\/th>\n% of Total<\/th>\nNotes<\/th>\n<\/tr>\n<\/thead>\n
DA telescopic cylinder<\/td>\n50\u201365%<\/td>\nFactory-direct from Korea Ever-Power<\/td>\n<\/tr>\n
4-way directional valve<\/td>\n15\u201325%<\/td>\nLocal hydraulic supplier \u2014 match to pump flow<\/td>\n<\/tr>\n
Retract hose + fittings<\/td>\n5\u201310%<\/td>\nHose + two fittings + clamps<\/td>\n<\/tr>\n
Installation labour<\/td>\n10\u201320%<\/td>\n2\u20134 hours for conversion + bleed<\/td>\n<\/tr>\n
Hydraulic fluid top-up<\/td>\n2\u20135%<\/td>\nAdditional fluid for the retract circuit<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
Budget tip: <\/strong>
\nIf you are converting multiple trucks, order all the double-acting cylinders in one batch from Korea Ever-Power to benefit from volume pricing on the largest cost category. Source the valves and hoses locally to avoid international shipping on small, readily available components. This mixed sourcing strategy \u2014 factory-direct cylinders + local system components \u2014 minimises total conversion cost across the fleet.<\/span><\/div>\n<\/section>\n

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OEM & ODM \u2014 Ordering the Conversion Cylinder<\/h2>\n
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What You Provide<\/h3>\n<\/div>\n
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Existing single-acting cylinder measurements: bore, rod, stroke, retracted length, pin diameters, and extend port thread. State “converting from single-acting to double-acting” so the engineering team can verify dimensional compatibility and confirm the retracted length increase. Specify the retract port thread if different from extend. For replacements: old cylinder photo or sample.<\/p>\n<\/div>\n<\/div>\n

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What the Factory Delivers<\/h3>\n<\/div>\n
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Drawing with confirmed retracted length (critical for conversion fit-check). Samples available. Production 25\u201335 days. 100% dual-circuit pressure test. 1-year warranty. Volume pricing for fleet conversions. The engineering team can also recommend a compatible 4-way valve specification. Contact the hydraulic cylinder factory<\/a> for quotation.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

\"Telescopic<\/p>\n

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Single-to-Double Acting Conversion \u2014 FAQ<\/h2>\n
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Will the double-acting cylinder fit in the same space as my single-acting?<\/h3>\n

Almost. The bore, stroke, stage count, and pin dimensions are the same \u2014 so the mounting points match. The retracted length increases by 10\u201325 mm due to the retract port and internal passages. On most small dump trucks this small increase fits within the existing frame clearance. Confirm the exact retracted length on the Korea Ever-Power confirmation drawing before approving production \u2014 this is the one critical dimension to verify for conversion compatibility.<\/p>\n<\/div>\n

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How long does the complete conversion take?<\/h3>\n

With all parts on hand (cylinder, valve, hose, fittings), a competent hydraulic technician can complete the conversion in 2\u20134 hours for a small dump truck. This includes: removing the old cylinder and valve (~30 min), installing the new cylinder and valve (~45 min), routing and connecting the retract hose (~30 min), filling and bleeding (~30 min), and testing under load (~30 min). Allow a full working day for the first conversion; subsequent trucks go faster as the technician becomes familiar with the procedure.<\/p>\n<\/div>\n

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Can I keep my existing pump, or does it need upgrading?<\/h3>\n

Usually the existing pump stays. The double-acting cylinder’s extend circuit uses the same flow and pressure as the single-acting \u2014 so the pump requirement for tipping is unchanged. The retract circuit uses less flow (smaller annular area) and lower pressure (pulling against seal friction plus body weight, not pushing a loaded body). The pump only needs upgrading if it was already marginal for single-acting operation \u2014 which would have manifested as slow tipping speed. If the single-acting tipping speed was acceptable, the pump is adequate for double-acting.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Field Reports<\/h2>\n
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G<\/div>\n
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Gary L. \u2014 Landscape Fleet Conversion<\/div>\n
Verified Purchase \u00b7 UK \u00b7 April 2025<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n<\/div>\n

Converted 4 landscape dump trucks from single-acting to double-acting after switching to aluminium bodies. Used the conversion checklist from this page \u2014 cylinder from Ever-Power factory-direct, valves and hoses from our local hydraulic shop. Total conversion cost was approximately 35% more than just the cylinder price \u2014 the valve, hose, and fittings added up exactly as described. Each truck took about 3 hours. All 4 trucks now retract reliably regardless of body weight or temperature. The retracted length increase was 18 mm \u2014 fit with no issues on all 4 trucks.<\/p>\n<\/div>\n

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O<\/div>\n
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Oliver D. \u2014 Independent Truck Mechanic<\/div>\n
Verified Purchase \u00b7 Australia \u00b7 March 2025<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n<\/div>\n

I do SA\u2192DA conversions regularly now \u2014 it’s become a standard service request from customers with retraction problems. Ever-Power cylinders are my preferred choice because the dimensions are consistent and the dual-circuit test certificate gives the customer confidence. The budget framework on this page is accurate: the cylinder is about 55\u201360% of my total job cost, the valve about 20%, hose and fittings about 10%, and my labour about 15%. I now use this page to explain the conversion scope to customers before they commit \u2014 it sets expectations correctly and avoids the “I thought I only needed a cylinder” conversation.<\/p>\n<\/div>\n

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C<\/div>\n
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Cho S. \u2014 Mini Truck Dealer<\/div>\n
Verified Purchase \u00b7 Korea \u00b7 February 2025<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2606<\/div>\n<\/div>\n

Converted a customer’s mini dump truck from single-acting to double-acting \u2014 2-inch bore, 2-stage. Four stars because the retracted length increase of 22 mm was tight on this micro chassis \u2014 it fit, but with only 8 mm clearance to the cross-member. On standard small trucks this is not a problem, but on micro and mini trucks, always verify the exact retracted length before committing. The Ever-Power engineering team provided the confirmed retracted dimension within 2 days of my inquiry \u2014 fast enough to confirm fit before placing the order. Cylinder works perfectly after conversion.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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Other Hydraulic Cylinder Categories<\/h2>\n
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\"Forklift\"<\/p>\n

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Forklift Cylinder Upgrades \u2192<\/a><\/h3>\n

Lift, tilt, steer \u2014 HCYY OEM compatible.<\/p>\n<\/div>\n<\/div>\n

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\"AWV\"<\/p>\n

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Scissor & Boom Lift Cylinders \u2192<\/a><\/h3>\n

15 cylinder types for AWV platforms.<\/p>\n<\/div>\n<\/div>\n

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\"All\"<\/p>\n

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Hydraulic Cylinder Manufacturer \u2014 All Products \u2192<\/a><\/h3>\n

Telescopic, welded, tie-rod \u2014 factory-direct.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

Product Images \u2014 Reference Gallery<\/h2>\n
\"DA<\/a>
\n\"Telescopic\"<\/a>
\n\"Multi-stage\"<\/a>
\n\"Factory\"<\/a><\/div>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"
Low price double acting telescopic hydraulic cylinder for small dump trucks \u2014 with a complete conversion guide for upgrading from single-acting to double-acting. Many small dump truck operators discover they need double-acting only after their single-acting cylinder fails to retract reliably. This page provides the step-by-step conversion guide: which components must change (cylinder, valve, hose), which components can stay (pump, reservoir, mountings \u2014 usually), and how to budget the complete conversion project.<\/div>","protected":false},"featured_media":2275,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[851],"product_tag":[],"class_list":["post-2303","product","type-product","status-publish","has-post-thumbnail","product_cat-telescopic-hydraulic-cylinder","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/hydrauliccylindersprice.com\/bg\/wp-json\/wp\/v2\/product\/2303","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hydrauliccylindersprice.com\/bg\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hydrauliccylindersprice.com\/bg\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/bg\/wp-json\/wp\/v2\/comments?post=2303"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/bg\/wp-json\/wp\/v2\/media\/2275"}],"wp:attachment":[{"href":"https:\/\/hydrauliccylindersprice.com\/bg\/wp-json\/wp\/v2\/media?parent=2303"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/bg\/wp-json\/wp\/v2\/product_brand?post=2303"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/bg\/wp-json\/wp\/v2\/product_cat?post=2303"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/bg\/wp-json\/wp\/v2\/product_tag?post=2303"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}