Hydraulic Lift Cylinders for Articulated Dump Trucks

Product Specifications

Technical details and manufacturing context for Hydraulic Lift Cylinders

Definition

Hydraulic lift cylinders are critical components in articulated dump trucks that convert hydraulic pressure into linear mechanical force to raise and lower the dump body for material unloading. They are typically mounted between the truck chassis and the dump body, providing controlled lifting motion through hydraulic fluid pressure. These cylinders are designed to handle heavy loads and harsh operating conditions common in construction and mining environments. The bore diameter, typically 100–200 mm, determines the lifting force, with larger bores providing higher capacity. Stroke length, ranging from 500 to 2000 mm, defines the dump height and angle. Operating pressure is usually 16–25 MPa, and lifting force ranges from 150 to 500 kN, which must exceed the loaded dump body weight. The rod diameter, 50–100 mm, affects buckling strength and retraction speed. Operating temperature range is -20 to 80°C, as seals degrade outside this range. Seal material is typically NBR for mineral oil, but FKM may be used for high-temperature applications. Cylinder tube material is often ST52, a high-tensile-strength steel for pressure resistance. The rod surface is hard chrome plated with a hardness of 52–58 HRC and a surface roughness of 0.2–0.4 µm Ra to reduce seal wear. Cushioning is adjustable to prevent end-of-stroke impact. Mounting type is typically clevis, allowing pivoting. Weight ranges from 50 to 200 kg, affecting vehicle payload. These cylinders are manufactured to standards such as ISO 6020-2 for dimensions for pressure testing, ISO 1629 for seal material designation, DIN 1629 for tube material, ISO 18265 for hardness conversion, and ISO 4287 for surface texture. Always verify model-specific values and standards with the legal manufacturer or supplier.

Working Principle

Hydraulic fluid under pressure from the truck's hydraulic pump enters the cylinder through hydraulic lines, acting on the piston inside the cylinder barrel. This pressure creates force on the piston rod, causing it to extend and lift the dump body. When the hydraulic pressure is released or reversed, the cylinder retracts, lowering the dump body. The controlled flow of hydraulic fluid regulates the speed and position of the dump body during operation.

Common Materials

High-strength steel, Chrome-plated steel, Sealing materials (rubber/polyurethane)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Bore Diameter	100–200 mm	Determines lifting force; larger bore for higher capacity.ISO 6020-2
Stroke Length	500–2000 mm	Defines dump height and angle.
Operating Pressure	16–25 MPa	Below 16 MPa may not lift rated load.
Lifting Force	150–500 kN	Must exceed loaded dump body weight.
Rod Diameter	50–100 mm	Affects buckling strength and retraction speed.ISO 6020-2
Operating Temperature	-20–80 °C	Seals degrade outside this range.
Seal Material	NBR	NBR for mineral oil; FKM for high temp.ISO 1629
Cylinder Tube Material	ST52	High tensile strength for pressure resistance.DIN 1629
Rod Surface Hardness	52–58 HRC	Hard chrome plating for wear resistance.ISO 18265
Rod Surface Roughness	0.2–0.4 µm Ra	Smooth surface reduces seal wear.ISO 4287
Cushioning	Adjustable	Prevents end-of-stroke impact.
Mounting Type	Clevis	Clevis mount allows pivoting.ISO 6982
Weight	50–200 kg	Affects vehicle payload.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Cylinder Barrel
Contains hydraulic fluid and guides piston movement

Material: High-strength steel
Piston
Separates fluid chambers and transmits force to rod

Material: Steel with sealing rings
Piston Rod Part
Transmits force to external load (dump body)

Material: Chrome-plated steel
Rod Gland Part
Seals cylinder and guides piston rod

Material: Steel with sealing components
Mounting Hardware Part
Connects cylinder to truck chassis and dump body

Material: Forged steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Hydraulic Lift Cylinders.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Articulated Dump Truck

View system integration details

Manufacturers of Hydraulic Lift Cylinders

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Fescolo Pneumatic Co., Ltd.

Ningbo, Zhejiang, CN

Also makes: Gas Pressure Regulator, Pneumatic Actuator, Pressure Regulator and 9 more

Listed on the company's own website · profile compiled by CNFX from public sources

View profile Send enquiry

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Frequently Asked Questions

What is the typical bore diameter range for these cylinders?

The bore diameter typically ranges from 100 to 200 mm, as listed in the directory. Larger bore diameters provide higher lifting force, but the exact value must be confirmed for the specific model.

What standards are referenced for these cylinders?

Standards referenced include ISO 6020-2 for dimensions, ISO 1629 for seal material, DIN 1629 for tube material, ISO 18265 for hardness, and ISO 4287 for surface roughness. These are verification references, not proof of certification.

What is the operating pressure range?

The operating pressure is typically 16–25 MPa. If the pressure is below 16 MPa, the cylinder may not lift the rated load. Always check the manufacturer's specifications.

What materials are commonly used for the cylinder tube and rod?

The cylinder tube is often made of ST52 steel, and the rod is chrome-plated steel with a surface hardness of 52–58 HRC. Seal materials are typically NBR, but FKM may be used for high-temperature applications.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Buyer enquiry

Request manufacturing insight for Hydraulic Lift Cylinders

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes: Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here: We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman: CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What we don't claim: A listing is not an endorsement. Qualify every supplier and verify every figure yourself before ordering.

pressure:	Up to 350 bar (5000 psi)
flow rate:	Up to 200 L/min (53 GPM)
temperature:	-40°C to +120°C
slurry concentration:	Not applicable - designed for hydraulic oil systems

Hydraulic Lift Cylinders

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards