Pallet Truck Lift Cylinder | Bore Φ40–45mm | Ultra-Compact
Pallet Truck Lift Cylinder
Ultra-Compact · Bore Φ40–45mm · Stroke 120–155mm
The smallest, lightest hydraulic cylinder in the forklift family — yet it moves every pallet in the warehouse. The pallet truck lift cylinder raises the forks just 120–155 mm: enough to clear the floor, lift the pallet, and transport it. Millions of these cylinders operate worldwide in electric walkie pallet trucks, rider pallet trucks, and manual pallet jacks.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Pallet Truck Lift Cylinder |
| Function | Raises forks on electric and manual pallet trucks |
| Bore Diameter (D) | Φ40 – Φ45 mm (4 specifications) |
| Rod Diameter (d) | Φ35 – Φ40 mm |
| Stroke (S) | 120 – 155 mm |
| Installation Distance (L) | 233 – 355 mm |
| Rod-to-Bore Ratio | 87.5% – 88.9% |
| Cylinder Type | Single-acting, single rod (gravity/spring return) |
| Application | Electric Walkie / Rider Pallet Truck, Manual Pallet Jack |
▲ Pallet Truck Lift Cylinder | Bore Φ40–45mm | Ultra-CompactHow the Pallet Truck Lift Cylinder Works
The pallet truck lift cylinder sits vertically inside the truck's main body, hidden behind the battery compartment or pump housing. When the operator presses the lift button (electric) or pumps the handle (manual), hydraulic pressure extends the cylinder rod upward. A linkage mechanism connects the rod to the fork arms, converting the short vertical cylinder stroke into fork elevation.
The stroke is deliberately short — 120 to 155 mm — because the forks only need to rise enough to clear the floor surface and lift the pallet clear of the ground. A typical pallet truck raises the load 85–200 mm, depending on the linkage ratio. More stroke than this is unnecessary and would increase the truck's overall height and weight.
Lowering is controlled by a release valve. The operator opens the valve, and the weight of the load pushes the cylinder rod back down — gravity does the work. There is no hydraulic power required for lowering, which is why these cylinders are single-acting (pressure on one side only). Browse the complete forklift hydraulic cylinder range.
Why the Extreme Rod-to-Bore Ratio (87–89%)?
At 87.5–88.9%, the pallet truck lift cylinder has the highest rod ratio of any forklift hydraulic cylinder. The Φ35 rod inside a Φ40 bore leaves only 2.5 mm of wall thickness on each side. This extreme ratio serves a specific purpose:
The cylinder must fit inside the narrow body cavity of a pallet truck — often less than 60 mm wide. Every millimetre of bore diameter adds to the overall truck width. The compact bore keeps the truck profile slim enough to enter standard pallet openings (typically 90–100 mm between stringer boards).
The thick rod carries the full pallet weight (up to 2,000–2,500 kg on standard pallet trucks) through a short linkage. The rod functions more as a structural column than a hydraulic piston — the hydraulic system only needs to push the column upward, while the column itself supports the static load at height.
The small annular area between bore and rod means very little oil is needed to extend the cylinder. This reduces the pump size, battery consumption (on electric trucks), and the operator effort needed per pump stroke (on manual jacks). A smaller hydraulic reservoir keeps the truck lighter.
Available Specifications
Four specifications cover the most common electric and manual pallet truck models:
| No. | Bore (D) | Rod (d) | Stroke (S) | Inst. Dist. (L) | Rod Ratio | Specifications |
|---|---|---|---|---|---|---|
| 1 | Φ45 | Φ40 | 125 | 313 | 88.9% | Φ45×Φ40×125 |
| 2 | Φ40 | Φ35 | 155 | 354.7 | 87.5% | Φ40×Φ35×155 |
| 3 | Φ45 | Φ40 | 155 | 355 | 88.9% | Φ45×Φ40×155 |
| 4 | Φ40 | Φ35 | 120 | 233 | 87.5% | Φ40×Φ35×120 |
Key Advantages
- Ultra-compact envelope — installation distance 233–355 mm fits inside the narrow body cavity of standard pallet trucks without increasing the truck's overall height or width.
- 87–89% rod-to-bore ratio — the highest in the forklift cylinder family. Minimises oil volume per cycle, reducing pump size, battery consumption, and manual pumping effort.
- ⚡ Single-acting simplicity — hydraulic pressure raises the forks; gravity lowers them through a release valve. No hydraulic power needed for lowering — the weight of the pallet pushes the rod back down.
- High-volume replacement part — pallet trucks are the highest-volume material handling equipment in warehouses worldwide. The lift cylinder is a wear item that requires periodic replacement, creating consistent aftermarket demand.
- ️ Hard-chrome rod, precision bore — despite the compact dimensions, the rod is hard-chrome plated and precision-honed for seal longevity. The short 120–155 mm stroke means the rod cycles through the same narrow zone hundreds of times per shift.
Complete Forklift Hydraulic Cylinder Family
Korea Ever-Power manufactures a complete range of forklift hydraulic cylinders — every cylinder type on the forklift, from a single source:
Tilt Cylinder — mast forward/backward pitch. 7 specs, Φ60–100 mm.
Lifting Cylinder — raises/lowers the carriage. Φ56–60 mm, stroke 1,500 mm.
Steering Cylinder — rear wheel direction. Φ65–80 mm, double-rod design.
Free-lift stage. 5 specs, Φ75–95 mm, high rod ratio.
Fork spacing + lateral adjustment. 5 specs, Φ50–70 mm.
Ultra-compact for electric/manual pallet trucks. 4 specs, Φ40–45 mm.
Why Choose Korea Ever-Power
Korea Ever-Power is a professional hydraulic cylinder manufacturer and supplier, specialising in forklift hydraulic cylinders, aerial work vehicle cylinders, mobile machinery cylinders, offshore cylinders, and industrial engineering cylinders. Our production facilities are equipped with composite machining centres, multi-station welding robots, automated assembly lines, specialised cylinder testing machines, and a dedicated quality inspection area — ensuring every cylinder meets OEM-grade performance standards.
Korea Ever-Power forklift tilt cylinders are manufactured to the same specifications and quality standards as original equipment cylinders fitted to major forklift brands worldwide. Every cylinder is 100% hydrostatic pressure tested, dimensionally inspected, and shipped with a test certificate and seal kit. Contact the Korea Ever-Power team for pricing and lead time.
Frequently Asked Questions
What Our Customers Say
"We replaced lift cylinders on 40 electric pallet trucks across 3 warehouses. The Φ45×Φ40×125 specification was a perfect match. At this volume, Korea Ever-Power's pricing was approximately 45% below our previous supplier. All 40 units are running without issues after 6 months."
K. Larsen — Fleet Manager, Denmark
"Our manual pallet jacks were all failing to hold lift height — the loads would slowly sink back to the floor. Swapped the lift cylinders for Korea Ever-Power Φ40×Φ35×120 units and the problem disappeared immediately. Clean lift, solid hold."
V. Soares — Warehouse Supervisor, Portugal
"Good quality, compact design. The 233 mm installation distance on the Φ40 model fits perfectly inside our pallet truck body without any modification. One minor point: we ordered 50 units and 2 had minor chrome marks on the rod — replaced under warranty without issue."
T. Suzuki — QC Inspector, Japan
"We distribute pallet trucks across Southeast Asia and needed a reliable cylinder supplier for our after-sales programme. Korea Ever-Power delivers consistent quality batch after batch — we have placed 6 orders over 18 months with zero quality issues."
P. Tran — After-Sales Director, Vietnam
"The Φ45×Φ40×155 specification matches our rider pallet trucks exactly. We also source tilt and lifting cylinders from Korea Ever-Power for our counterbalanced forklifts — having one supplier for the entire fleet simplifies everything."
M. Weber — Purchasing Manager, Austria
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