Forklift Lifting Cylinder | EP-HCYY11112000 Model
Forklift Lifting Cylinder
EP-HCYY11112000 · Bore Φ56–60mm · Stroke 1,500mm
The main lift force on every counterbalanced forklift. The lifting cylinder raises and lowers the carriage — carrying the forks, the load, and the spreader attachment — along the full height of the mast. A 1,500 mm stroke, multiplied through a chain-and-pulley system, delivers 3,000+ mm of actual lifting height. Installed in left/right pairs inside the mast channels.
Technical Specifications
▲ Dimension Drawing
| Parameter | Specification |
|---|---|
| Product Name | Forklift Lifting Cylinder |
| Cylinder Model | EP-HCYY11112000 |
| Bore Diameter (D) | Φ56 – Φ60 mm (5 specifications) |
| Rod Diameter (d) | Φ45 mm |
| Stroke (S) | 1,500 – 1,505 mm |
| Installation Distance (L) | 1,658 – 1,808 mm |
| Working Pressure | 18.1 MPa |
| Maximum Withstand Pressure | 27.15 MPa |
| Rod-to-Bore Ratio | 75% – 80.4% (high ratio for mast channel fit) |
| Weight | 33 kg (Φ56 specification) |
| Cylinder Type | Double-acting, single rod |
| Mounting | Left / Right paired installation inside mast channels |
| Application | Counterbalanced Forklift — Carriage Lift |
▲ Forklift Lifting Cylinder | EP-HCYY11112000 ModelHow the Lifting Cylinder Raises the Load
The lifting cylinder is mounted vertically inside the mast channel — one cylinder on the left side, one on the right. When hydraulic pressure is applied, both cylinders extend simultaneously, pushing the carriage upward along the mast rails. A chain-and-sheave system connects each cylinder rod to the carriage, providing a 2:1 mechanical multiplication — so the 1,500 mm cylinder stroke produces approximately 3,000 mm of actual carriage travel.
The high rod-to-bore ratio (up to 80.4%) is a deliberate design choice. The lifting cylinder must fit inside the narrow mast channel — typically only 80–100 mm wide. A thick rod with a compact bore minimises the cylinder's cross-section while providing the column strength needed to push the loaded carriage (up to 3,500 kg of load + carriage + attachment weight) vertically without rod buckling over the 1,500 mm extended length.
Lowering is controlled by metering the return oil flow. A counterbalance valve prevents the carriage from falling if the hydraulic supply is lost — the loaded carriage can only descend when the operator actively commands it. Browse the full forklift hydraulic cylinder range.
Available Specifications
Five specifications are available for the forklift lifting cylinder, covering different mast heights and forklift configurations. Left-hand and right-hand cylinders are supplied as matched pairs:
| No. | Bore (D) | Rod (d) | Stroke (S) | Inst. Dist. (L) | Specifications | L / R |
|---|---|---|---|---|---|---|
| 1 | Φ56 | Φ45 | 1,500 | 1,658 | Φ56×Φ45×1500 | Left / Right |
| 2 | Φ56 | Φ45 | 1,500 | 1,658 | Φ56×Φ45×1500 | Right only |
| 3 | Φ60 | Φ45 | 1,505 | 1,780 | Φ60×Φ45×1505 | Left / Right |
| 4 | Φ60 | Φ45 | 1,500 | 1,808 | Φ60×Φ45×1500 | Left / Right |
| 5 | Φ60 | Φ45 | 1,500 | 1,808 | Φ60×Φ45×1500 | Right only |
Why the High Rod-to-Bore Ratio?
At 80.4% (Φ45 rod inside Φ56 bore), the lifting cylinder has one of the highest rod ratios among forklift hydraulic cylinders. This is not a cost compromise — it is a specific engineering requirement:
The cylinder sits inside a narrow C-channel in the mast structure. A thick rod with a compact bore keeps the overall cylinder diameter small enough to fit — while still providing the force needed to lift the full rated load.
The rod extends 1,500 mm vertically under load. A thin rod would buckle. The Φ45 mm rod provides the column stiffness needed to push the loaded carriage straight up without deflection — even at maximum stroke with maximum load.
The small annular area (bore minus rod) limits the oil flow rate during lowering. This inherently slows the descent speed — providing a natural speed control that supplements the counterbalance valve.
Key Advantages
- 1,500 mm stroke for 3,000+ mm lift height — through a 2:1 chain multiplication system, the cylinder stroke is doubled at the carriage. A 1,500 mm cylinder produces over 3 metres of actual lifting travel.
- Counterbalance valve for safe lowering — prevents uncontrolled descent if hydraulic supply is lost. The loaded carriage stays at height until the operator commands it down.
- 27.15 MPa maximum withstand pressure — 1.50× safety factor over the 18.1 MPa working pressure. Handles dynamic loads from load sway, chain acceleration, and sudden stops.
- ⚡ Left / Right paired installation — two cylinders work in parallel inside the mast channels, providing balanced lifting force on both sides of the carriage. Eliminates carriage tilt and uneven chain wear.
- Hard-chrome rod, precision-honed bore — the 1,500 mm stroke exposes a long section of rod surface with every cycle. Surface quality (Ra ≤0.2 µm) is critical for seal longevity over the high number of lifting cycles 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
"Replaced lifting cylinders on 8 forklifts — the Φ56 specification matched our existing mast channels perfectly. The 80% rod ratio worried us initially, but the cylinders lift smoothly with no rod deflection even at full stroke under maximum load. After 7 months, zero seal leaks."
R. Kowalski — Maintenance Manager, Poland
"We ordered left/right matched pairs for 5 forklifts. Carriage lifting is noticeably smoother and more even compared to our old mismatched cylinders. The 1,658 mm installation distance was exact — direct swap."
A. Schmidt — Workshop Foreman, Germany
"Good quality lifting cylinders. The 33 kg weight is manageable for a single technician with a strap hoist. The rod chrome finish is uniform across the full 1,500 mm length. Delivery took 7 weeks — slightly longer than quoted."
C. Eriksson — Service Technician, Sweden
"We switched to Korea Ever-Power lifting cylinders across our 30-forklift fleet. Cost saving versus OEM parts: approximately 35%. Quality is equivalent — we ran a side-by-side comparison on our test mast and measured identical lift speed and pressure drop."
M. Oliveira — Fleet Director, Brazil
"Second order. We now use Korea Ever-Power for both tilt and lifting cylinders on all our forklifts. Ordering tilt + lifting as a combined set simplifies procurement and ensures compatible quality across the mast assembly."
K. Nakamura — Purchasing Manager, Japan
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追加情報
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