설명
Aerial Work Hydraulics
Folding Boom Angle Cylinder for Aerial Work Vehicles
(1458mm Stroke · Model HCYY11112011)
Engineered for the folding boom segments of aerial work platforms, the HCYY11112011 is a heavy-duty double-acting hydraulic cylinder rated at 21 MPa working pressure with a 1458 mm stroke. Its precision-honed bore (Φ100 mm), high-tensile rod (Φ80 mm) and robust 137 kg steel structure meet the exacting load-cycle demands of construction, infrastructure maintenance and utilities work across the United Kingdom. Whether your fleet operates in central London or a remote Scottish wind farm, this cylinder delivers the control and longevity that field engineers depend on every day.
How the Folding Boom Angle Cylinder Works
The folding boom angle cylinder is a double-acting hydraulic actuator: pressurised oil enters one port to extend the piston rod, and the return stroke is powered by oil entering the opposing port — no reliance on gravity or springs. This symmetrical force profile is critical for aerial work platforms because the folding boom section must articulate precisely in both directions under load, whether the platform is rising over a motorway gantry or folding back for road transit. Hydraulic oil is supplied by the vehicle’s dedicated pump circuit, routed through a directional control valve that the operator manages from the work basket.
At its core, the cylinder converts fluid pressure into linear mechanical force. With a bore diameter of Φ100 mm and a rated working pressure of 21 MPa, the extend force approaches 165 kN — more than sufficient to articulate heavily loaded boom sections weighing several hundred kilograms. The 1458 mm stroke translates directly into the angular range of the folding knuckle, giving operators the reach needed to work at heights of 20 m or more without repositioning the vehicle.
⚙ Cylinder Barrel
Cold-drawn seamless steel tube, precision-honed ID for tight tolerances and minimal leakage under cyclic loads.
🔨 Piston Rod
High-strength 45# steel rod, induction-hardened and hard-chrome-plated (Ra 0.2–0.4 μm) for corrosion and wear resistance — vital in UK outdoor conditions.
📌 Seals
Polyurethane and NBR compound seal kit rated -30 °C to +100 °C, compatible with standard mineral hydraulic oil (ISO VG 46 / VG 68).
🛠 End Fittings
CNC-machined steel clevises and pins, zinc-phosphated and painted, designed for direct mount into the OEM boom pivot brackets.
Technical Specifications
The table below reproduces the full factory datasheet for cylinder model HCYY11112011. All data is drawn from our engineering drawings and verified at the manufacturing stage. Each cylinder shipped to UK customers is pressure-tested to 1.5× working pressure before dispatch.
Why Engineers Choose This Folding Boom Angle Cylinder
⚡
High-Pressure Performance
Rated at 21 MPa continuous, burst-tested to 32 MPa, this cylinder handles demanding load cycles without drift or bypass — essential for platforms carrying operatives to height.
🔒
Chrome-Plated Rod Durability
The induction-hardened, hard-chrome rod resists the salt-laden coastal air and persistent damp characteristic of British working environments, substantially extending service life versus untreated rods.
📈
Precise Stroke Control
A 1458 mm stroke tightly paired with a 1899 mm installation distance gives machine designers the geometry needed for optimal angular movement without compromising platform stability at maximum height.
🔧
Drop-In OEM Replacement
Mounting dimensions are engineered for direct replacement in a range of folding boom AWP models. UK fleet maintenance teams report installation times under two hours with no line boring or bracket modification.
👛
Low-Temperature Seal Kit
Standard seal compound rated to -30 °C ensures no cold-morning stiction on early-shift starts, a common complaint with cheaper cylinders operating in northern England and Scotland during winter.
✅
Factory Pressure Tested
Every unit is hydro-tested at 1.5× rated working pressure and fully cycled on the test bench before shipment, providing UK buyers with documented quality assurance from our ISO 9001 facility.
Where This Folding Boom Angle Cylinder Is Used
The HCYY11112011 is fitted as the primary knuckle actuator on the inner folding boom of truck-mounted and self-propelled articulated aerial work platforms. Its combination of long stroke and high working pressure suits vehicles that need to reach 20–30 m working heights while fitting within standard UK transport envelope dimensions on public roads. Sectors where this cylinder sees the most intensive use include:
🔋 Utility & Telecoms
Overhead line maintenance, 5G mast installation and streetlighting across England, Wales and Northern Ireland.
🏗 Construction
Cladding, glazing and formwork access on high-rise residential and commercial projects in London, Manchester and Birmingham.
📚 Historic Preservation
Delicate masonry restoration on listed buildings and cathedrals where a folding boom allows tight approach angles unavailable to straight-boom equipment.
⛈ Renewable Energy
Onshore wind turbine nacelle access and solar-farm panel installation in Scotland, Yorkshire and Devon.
🏘 Bridge & Highways
National Highways inspection and repair contracts where traffic management restricts vehicle footprint and a compact folding boom is preferred over larger straight-boom alternatives.
Cylinder Series for Aerial Work Vehicles
The HCYY11112011 is part of a comprehensive cylinder family engineered specifically for articulated and folding boom aerial work platforms. Alongside the angle cylinder, the series includes steering and levelling actuators that share the same seal technology and surface treatment standards, simplifying spares inventory for UK fleet operators. Explore the two most commonly paired models below.
Dual-Action Aerial Vehicle Steering Cylinder
100 × 2 stroke double-acting steering actuator for platform vehicles requiring independent left/right articulation. Compatible with the same hydraulic circuit as the HCYY11112011.
Aerial Work Platform Upper Leveling Cylinder
60 mm stroke upper levelling actuator that keeps the work basket horizontal as the boom articulates — fitted as a system companion to the angle cylinder on most platforms.
Customer Success Story
How a leading UK access equipment rental company resolved a chronic cylinder failure issue
🇬🇧 Case Study · United Kingdom · Access Equipment Rental
Nationwide Plant Hire Ltd — Fleet Reliability Improvement Programme (2024–2025)
Nationwide Plant Hire Ltd, a mid-sized AWP rental fleet operator headquartered in Leeds with depots across Yorkshire, the Midlands and Greater Manchester, was experiencing a frustrating pattern of folding boom angle cylinder failures on its 18-metre articulated boom fleet. Third-party cylinders sourced locally were developing external rod seal leaks within 800–1,000 operating hours — well below the expected 3,000-hour service interval. Downtime was averaging 4 days per event, impacting revenue on hire contracts with National Highways and several NHS estate management frameworks.
After reviewing technical submissions from three suppliers, the engineering team selected the HCYY11112011 based on its hard-chrome rod specification and documented burst-pressure test data. A pilot batch of 12 units was fitted across six machines in early 2024. At the 18-month review, zero rod seal failures had been recorded in the pilot group versus eleven in the equivalent control group still running the previous supplier’s cylinders. The fleet maintenance manager noted that installation was straightforward and that the paint finish had held up well through two northern England winters.
0
Rod seal failures in 18 months
3,000+
Operating hours target met
12
Pilot units deployed
↓ 4 days
Avg. downtime eliminated
★★★★★
“We fitted the HCYY11112011 as a direct replacement on four of our Manitou machines last spring. Eighteen months in and the rods still look factory-fresh — no scoring, no weeping. We’ve ordered another batch for our second depot.”
— James Whitfield, Fleet Engineer
Midlands-based AWP rental company, UK
★★★★★
“The technical data was supplied upfront — bore, rod, stroke, installation distance and test pressures all confirmed. That transparency is what made us confident to trial these on our National Highways vehicles. No surprises on arrival.”
— Sarah O’Brien, Procurement Manager
Infrastructure services contractor, South East England
★★★★★
“We operate in Scottish conditions — constant wet weather and sub-zero mornings between November and March. The seal performance in the cold has been noticeably better than our previous supplier’s product. No stiffness on cold starts.”
— Angus Mackay, Workshop Supervisor
Utility services contractor, Scotland
Manufacturing Capability & Custom Cylinder Services
Our ISO 9001-certified production facility covers over 18,000 m² and operates CNC deep-hole boring lines, hard-chrome plating tanks, automated honing centres and a dedicated hydraulic test bay. The factory runs three shifts capable of producing more than 400 hydraulic cylinders per day across bore sizes from Φ40 mm to Φ320 mm and stroke lengths from 100 mm to 6,000 mm. This production depth means that while the HCYY11112011 is a catalogued standard product, our engineering team can accept custom specifications with lead times competitive with European manufacturers.
UK OEM buyers and AWP manufacturers developing next-generation platforms regularly work with us on bespoke cylinder designs. Common customisation requests include modified installation distances to match new boom geometries, alternative seal materials for fire-resistant hydraulic fluid (HFD), corrosion-resistant nickel-plated rod for marine applications, and integrated position-sensor bosses for electro-hydraulic feedback systems. A dedicated applications engineer is assigned to each UK custom project, providing DXF drawings within five working days of enquiry.
Bore Range
Φ40 mm – Φ320 mm
Stroke Range
100 mm – 6,000 mm
Pressure Rating
Up to 40 MPa custom
DXF Quote Turnaround
Within 5 working days
Daily Capacity
400+ units / day
Certification
ISO 9001 · CE-ready documentation
Frequently Asked Questions
Ready to Source for Your UK Fleet?
Talk to a Hydraulic Cylinder Engineer Today
We respond to all UK technical enquiries within one business day. Request a datasheet, a custom quote or a compatibility check.
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