Aerial Working Equipment Hydraulic Cylinder

Aerial Working Equipment Hydraulic Cylinder from Jiangsu Hengcai

Jiangsu Hengcai Hydraulic Mechanical Co., Ltd. builds the Aerial Working Equipment Hydraulic Cylinder for the lift circuit of scissor platforms, straight-arm telescopic platforms, articulated boom platforms and vehicle-mounted aerial work units. This cylinder carries the platform, holds the working position under load and governs the controlled descent, so it is sized around machine geometry and duty cycle rather than treated as a stock item. Our plant in Jianhu County, Yancheng City, Jiangsu Province has manufactured hydraulic cylinders since 1988, and this series sits inside our wider Construction Hydraulic Cylinders programme.

Series coverage runs from 9 m to 100 m of aerial working height, with bore diameters from 40 mm to 230 mm and strokes up to 19,020 mm. Every cylinder in this series is produced to customer drawings or samples, and we also hold standard cylinder configurations for common mounting patterns.

Series Specification Envelope

The 32 MPa ceiling sets wall thickness, piston rod diameter and sealing class together. Push force reaches 1,038 kN and pull force 536 kN inside this envelope; a machine that needs more force moves up the bore and rod series instead of running pressure beyond the limit. The -40 to +100 °C band is the range the sealing system and rod surface treatment are selected against.

Where This Cylinder Fits

• Scissor platforms — vertical lift packs where short, high-force strokes raise the scissor stack and hold it while operators work.
• Straight-arm telescopic platforms — boom elevation and telescope sections that need long stroke with stable cushioning at both ends of travel.
• Articulated boom platforms — multi-point articulation where several cylinders share the load path and mounting geometry has to match the knuckle design.
• Vehicle-mounted aerial work units — mobile platforms that combine boom elevation and platform positioning on the same hydraulic circuit.

Across these machine types the same failure pattern repeats: rod scoring, seal extrusion under shock, and pin seizure at the mounting eyes. Our design work targets those three points directly.

Design Features That Carry the Duty Cycle

• Dynamic simulation and real-time detection of the cushioning process using emulation and load sensing, so end-of-stroke buffer behaviour is reviewed before the cylinder is cut.
• Piston rod outer diameter is medium-frequency quenched and finished with nickel-chromium composite plating for wear resistance, impact resistance and corrosion resistance.
• The sealing system is upgraded for high pressure, high impact and fast operating conditions, and for continuous high-temperature running.
• Special-material sleeves at both cylinder ends limit pin shaft sintering and extend the maintenance interval of the machine.
• Customized piston rod material raises fatigue resistance on long-stroke boom cylinders.
• Modular structure with high component commonality keeps assembly, replacement and service straightforward, and a lightweight high-strength alloy design reduces carried weight on the boom.

Configuration Options and Line Integration

We configure each Aerial Working Equipment Hydraulic Cylinder around the machine interface rather than around a fixed model list. Bore, rod diameter and stroke are selected as a set, and cushioning, sealing compound, rod finish and port position follow the circuit and environment.

• Single- or double-acting construction, standard or extended cushion length at either end.
• Seal compound chosen for the actual oil temperature seen at the boom, not only the ambient temperature.
• Mounting eyes, flanges and pin diameters matched to the existing pivot centres and pin hardware.
• Port size and position set by pump pressure, flow and control valve type, including valve block and hose routing on the boom.
• Rod surface treatment and coating thickness selected for coastal, wash-down or dusty site conditions.

The same engineering approach supports our Excavator Hydraulic Cylinder and Pump Truck Hydraulic Cylinder series, where impact and duty profiles differ but the process control is the same.

Materials, Machining and In-House Process Control

Our manufacturing system covers 22 process groups and 109 processing capabilities for cylinder production, with a self-made parts rate of around 70%. Core processes — welding, heat treatment, electroplating and spraying — and all critical parts are produced internally, which is where product consistency is actually decided. Large honing and machining capacity, a 10 t overhead crane and specialised measurement systems support the long barrel and slender rod work this series requires.

Heat treatment runs through an overall tempering unit or a fully automatic surface induction heating device, followed by hardness, tensile and automatic metallographic checks. Spraying is completed on a 315 m automatic electrostatic coating line or a large manual line, with coating thickness, hardness, adhesion and corrosion resistance verified afterwards. Design and production data are managed on the PLM TeamCenter platform with SAP, so a drawing revision carried by the customer reaches the shop floor record.

Testing, Documentation and Acceptance

Cylinders are validated on an internationally advanced 2P-2F durability test bench and a reciprocating and buffer comprehensive performance test bench. Our physical, chemical and metallographic laboratories test material properties, chemical composition and dimensional accuracy, so a cylinder leaves with a production route behind it rather than a visual check alone.

Management systems are certified to ISO 9001, ISO 14001 and CE. Test parameters, inspection records and acceptance criteria are agreed during order conversion, and we prepare inspection documentation to the level the project requires before shipment.

Installation, Commissioning and Maintenance Support

Special-material sleeve bearings at both ends address the pin sintering that pushes machines out of service, and the modular construction means seals, rod assemblies and end components are replaceable individually. We supply long-term spare parts for our cylinders, including metal parts, pipe joints, sealing rings and rubber components, so a rebuild does not depend on a complete cylinder replacement.

All cylinders carry a one-year warranty against material and workmanship defects under normal use. Technical support covers installation, commissioning and operator training, and quality reports are answered within 24 hours with a diagnosis or action plan developed within 3-5 days.

Information We Use to Configure Your Solution

Aerial Working Equipment Hydraulic Cylinder projects move from requirement definition through scheme design, customer confirmation, process design, manufacturing BOM preparation, inspection preparation and final testing before order conversion.

Frequently Asked Questions

What does the Aerial Working Equipment Hydraulic Cylinder series cover?
Bore diameters from 40 mm to 230 mm, rod diameters from 22 mm to 160 mm, strokes from 85 mm to 19,020 mm, working pressure up to 32 MPa and working temperature from -40 °C to +100 °C. Push force reaches 1,038 kN and pull force 536 kN within that envelope.

Which machines does this cylinder suit?
Scissor-type, straight-arm telescopic and articulated-arm lifting platforms, plus aerial work vehicles, across an aerial working height range of roughly 9 m to 100 m. Mounting geometry and load case decide the final bore, rod and stroke combination.

Can you build from our drawings or from an existing sample?
Yes. Customized cylinders are our main business and we develop and produce from customer drawings or samples. We also hold standard hydraulic cylinder products for common requirements, and we operate an OEM programme using the product name and drawings supplied by the customer.

How is cushioning and durability verified before shipment?
Cylinder buffer behaviour is analysed by emulation and load sensing during design, then validated on our 2P-2F durability test bench and the reciprocating and buffer comprehensive performance test bench. Material properties, chemical composition and dimensional accuracy are confirmed in our physical, chemical and metallographic laboratories.

What support continues after delivery?
Each cylinder carries a one-year warranty against material or workmanship defects under normal use. We support installation, commissioning and training, respond to quality reports within 24 hours, and supply long-term spare parts including metal parts, pipe joints, sealing rings and rubber components.

Where are these cylinders manufactured?
In our Jianhu County plant in Yancheng City, Jiangsu Province, China, a facility of approximately 130,000 m² with more than 200 employees and annual output above 80,000 hydraulic cylinders. Jiangsu Hengcai holds ISO 9001, ISO 14001 and CE certification and supplies cylinders worldwide, including North America, Japan and Russia.

As an Aerial Working Equipment Hydraulic Cylinder manufacturer, we build the cylinder around your platform geometry, load case and hydraulic circuit, and confirm the specification before production begins.