Double Acting Heavy Duty Cylinders
Bi-directional power for precise control on booms, buckets, blades, and steering systems where both extension and retraction must stay smooth and stable under load.
Heavy Duty Hydraulic Cylinder Range
From mining haul trucks to construction attachments and agricultural trailers, our heavy duty cylinders handle high pressure, side load, and harsh working environments. You can mix standard models and custom designs in one shipment with flexible packing and labeling.
Single Acting Heavy Duty Cylinders
Rugged single acting units for lifting, dumping, and tipping where gravity or external force returns the rod, reducing circuit cost while keeping strong lifting capacity.
Telescopic Heavy Duty Cylinders
Multi-stage telescopic cylinders with long stroke and short retracted length, ideal where mounting space is tight but lifting height and payload requirements are high.
Tie Rod Heavy Duty Cylinders
Strong tie rod construction with easy maintenance and rebuild options, designed for hydraulic systems that run many hours every day in industrial environments.
Want one reliable heavy duty hydraulic cylinder supplier who can handle standard, custom, and special cylinders in the same shipment?
Material & Core Components for Heavy Duty Cylinders
Heavy duty hydraulic cylinders rely on more than just bore size and stroke. Consistent performance in mining, construction and industrial applications starts with high-grade steel, hardened piston rods, trusted sealing brands and reinforced end-cap structures.
Heavy Duty Build
Key materials used in Topa heavy duty cylinders
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Cylinder Tube – Honed ST52 / 27SiMn
High-strength honed tube (ST52 / 27SiMn) provides a smooth internal surface, excellent fatigue resistance and stable performance under continuous high-pressure duty.
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Piston Rod – Hard Chrome / Induction Hardened
Hard chrome plated and optional induction hardened rods resist bending, scoring and corrosion, supporting long strokes and heavy side loads in harsh environments.
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Sealing System – Hallite / NOK / Parker
Heavy duty seal kits from Hallite, NOK or Parker provide controlled leakage, low friction and long service life under high pressure, shock loads and contaminated oil.
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Bearing & Guide – Impact-Resistant Bronze
Impact-resistant bronze wear rings and bearing elements support the piston and rod, reducing metal-to-metal contact and extending life in oscillating or shock-heavy applications.
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End-Cap Design – Reinforced Heavy Flange
Thick, reinforced flange end-caps with controlled welds keep the cylinder structurally secure under peak pressure spikes, heavy loads and demanding mounting positions.
Custom Heavy Duty Cylinder Options
Every heavy duty application has its own load, stroke and mounting limits. Topa offers flexible sizing and configuration options so that your cylinder fits the machine frame, duty cycle and working environment without expensive redesign of your equipment.
Typical customization ranges
Bore Size
50 – 500 mm
Large-bore heavy duty cylinders for mining trucks, presses and industrial lifting equipment.
Stroke
50 – 8000 mm
Short, compact strokes or long telescopic-style movements available according to machine layout.
Working Pressure
Up to 350 bar
Designed for continuous high-pressure duty with safety margins for pressure spikes and shock loads.
Mounting
Clevis, Trunnion, Flange, Spherical Bearing
Mountings matched to your frame and pin sizes so that new cylinders drop into existing equipment.
Ports
BSP / NPT / SAE or Custom
Port positions, thread types and sizes arranged around hoses, manifolds and valve block connections.
Coating
Special Anti-Corrosion & Marine-Grade Finishes
Options for marine, coastal and chemical environments with upgraded paint systems and rod protection.
Working Conditions Suitability
Heavy duty hydraulic cylinders from Topa are engineered to keep working where standard cylinders fail. From dusty quarries to offshore equipment and extreme temperature ranges, each cylinder is tuned to the real environment around your machine.
Environment
High Dust & Abrasive Media
Cylinder designs with wipers, scrapers and protected rods to keep dust, sand and abrasive fines away from critical sealing and guiding surfaces.
Environment
Strong Vibration & Shock
Reinforced welds, heavy-duty mountings and robust bearings help the cylinder withstand continuous vibration and impact loading on mobile equipment.
Environment
Continuous Heavy Load
Large bore sizes, thick-wall tubes and oversized piston rods provide the strength needed for long-term high load operation in presses and lifting systems.
Environment
High Humidity & Outdoor Exposure
Protective coatings and careful material selection help reduce rust and surface degradation in humid plants, storage yards and outdoor installations.
Environment
Sea Water & Corrosive Atmosphere
Marine-grade paint systems, upgraded rod coatings and stainless hardware improve resistance to salt spray and coastal or offshore corrosion.
Environment
High & Low Temperature
Seal materials, oil recommendations and clearances are selected for reliable cylinder movement in both sub-zero climates and high-temperature industrial zones.
Heavy Duty Cylinder Key Features
Six core design points that make Topa heavy duty hydraulic cylinders reliable in high-pressure, high-load and harsh working conditions.
250–350 bar Working Pressure
Designed for continuous duty at 250–350 bar, with safety margins reserved for shock loads, overloads and demanding industrial duty.
Reinforced Welds
Critical joints use reinforced welds and controlled welding procedures to resist vibration, impact and heavy reverse loading.
Thick-Wall Cylinder Tubes
Heavy wall honed tubes made from high-strength steel reduce deformation and extend fatigue life under repeated heavy loads.
Large Diameter Piston Rods
Oversized, induction-hardened rods limit bending and buckling, keeping the cylinder stable on long strokes and high side loads.
High-Performance Sealing System
Heavy duty seal packages from trusted brands provide low leakage, low friction and long life under high pressure and dirty environments.
Corrosion-Resistant Surface Treatment
Chrome plating, nickel plating or heavy-duty painting systems protect the cylinder from rust in marine, mining and outdoor applications.
Heavy Duty Cylinder Factory Tour
Walk into Topa’s heavy duty cylinder factory and see how our CNC machining, welding, honing, and testing lines work together to support mining, marine, construction and other extreme-duty applications.
Our heavy duty cylinder workshop is designed for high pressure and long stroke cylinders that work in tough environments. From thick-wall barrel tubes to oversize piston rods, each component is processed with strict control.
In the factory you will see:
- Dedicated heavy duty CNC lines for large bore cylinder barrels and end caps.
- Automatic and semi-automatic welding stations for strong, repeatable joints.
- Honing and polishing equipment that achieves smooth surfaces and stable sealing.
- Test benches that simulate real working pressure and verify zero leakage.
During your visit we can show ongoing orders, cylinder drawings, and inspection reports so you understand clearly how your heavy duty cylinders are produced and controlled from raw material to final packing.
Heavy duty cylinder CNC machining workshop.
Large bore barrels processed with precision CNC centers.
Automatic welding for strong, consistent cylinder joints.
100% pressure and leakage testing before shipment.
Inside Our Heavy Duty Cylinder Factory
Take a closer look at how Topa manufactures heavy duty hydraulic cylinders with strict control over machining, welding, honing, and pressure testing.
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Advanced CNC Machining
More than 100 CNC centers dedicated to tube boring, piston machining, rod preparation, and end-cap precision cutting.
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Thick-Wall Welding Lines
Automatic and semi-automatic welding systems for heavy wall cylinder tubes and flange structures.
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Honing & Surface Finishing
Deep honing capability ensures smooth bore finish and tight roundness tolerance for high-pressure performance.
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Pressure & Leakage Testing
Each cylinder passes pressure and leakage testing to verify safety, reliability, and structural integrity before shipping.
Heavy Duty Cylinder Manufacturing Flow
Each heavy duty hydraulic cylinder goes through a controlled manufacturing flow so that thick-wall tubes, large piston rods and heavy-duty seals work together under up to 300 bar pressure in real machine duty.
Raw Material Cutting – Thick-Wall Tubes
Heavy-wall cylinder tubes and bar stock are cut to length according to your bore and stroke requirements, ready for deep machining and honing.
Deep Bore Machining
Precision boring and honing achieve the required bore size, roundness and surface finish for high-pressure, heavy duty cylinder tubes.
Automatic Welding – Reinforced Joints
Flanges, bases and other heavy structures are welded onto the tube using automatic or semi-automatic welding systems for strong, repeatable joints.
CNC Rod Machining
Piston rods are turned, threaded and prepared on CNC machines, then hard chrome plated or induction hardened according to duty requirements.
Assembly with Heavy-Duty Seals
Pistons, rods, seals, wear rings and bearings from trusted brands are assembled with controlled clearances for low leakage and long service life.
Pressure Test
Every heavy duty cylinder is tested up to its working pressure, and in many cases up to 300 bar, to confirm structural strength and zero visible leakage before shipment.
Packaging & Export Logistics
Heavy duty cylinders are prepared for long-distance sea and land transport with anti-rust protection, secure packing and complete export documentation, so your shipments clear customs smoothly and arrive ready to use.
What we do for each shipment
Rust Preventive Oil
Rods and key metal surfaces are treated with anti-rust oil to protect against moisture and salt during storage and sea transport.
Sealed Wrapping
Each cylinder is wrapped with film or protective bags to keep dirt, dust and moisture away from ports, seals and rod surfaces.
Strong Wooden Cases & Pallets
Cylinders are fixed in fumigated wooden cases or on pallets, reducing risk of impact damage during loading, trucking and container handling.
Complete Export Documents
Commercial Invoice (CI), Packing List (PL), Certificate of Origin (CO) and other requested documents are prepared to match your customs requirements.
Global Shipping Support
We ship cylinders worldwide by sea, air or rail, working with your forwarder or our long-term logistics partners to reach your port or door.
Export Ready
Rust-protected rods, sealed wrapping and wooden cases prepared with complete CO, CI and PL documents for safe global delivery.
Why Choose Topa?
Strong Manufacturing Capacity
Over 100 CNC machines, automatic welding lines, honing machines and pressure-testing equipment ensure consistent production for OEM projects.
Custom Engineering Support
We design cylinders based on load, pressure, mounting and working conditions to match real-duty machine requirements.
Strict Quality Assurance
Every cylinder is inspected for dimensions, sealing performance and pressure strength before packing and delivery.
Fast Production & Delivery
Efficient workflow and strong material stock allow quick lead times for urgent OEM or replacement projects.
One-Stop Hydraulic Supply
Cylinders, fittings, hoses, valves and custom components prepared in one shipment with flexible packing options.
Global Export & Support
Shipments with CO, CI, PL documents and worldwide delivery support for distributors, OEM factories and repair companies.
Real Heavy Duty Cylinder Projects
These examples show how we support different customers – from small repair shops to OEM equipment manufacturers – with heavy duty hydraulic cylinders.
Mining Dump Truck Cylinder Replacement
A customer needed replacement heavy duty telescopic cylinders for dump trucks working in a dusty mining area. We matched key dimensions from the used sample, improved sealing, and supplied cylinders with test reports, reducing truck downtime and saving cost compared with original branded parts.
Loader Heavy Duty Boom Cylinder for OEM
A small construction machinery manufacturer in Europe cooperated with us on boom and bucket cylinders. We worked together on re-design for higher pressure and offered better pricing so they could compete with bigger brands in their local market.
Agricultural Trailer Dealer Support
A distributor selling farm trailers needed regular supply of heavy duty single acting cylinders with flexible branding and packing. We now ship mixed sizes in one container with their label, helping them stay stable in a seasonal market.
Want to see how a heavy duty hydraulic cylinder supplier can support your project similar to these cases?
Service Process with TOPA
Clear steps from first inquiry to container loading, so you always know what happens next.
1
Information Collection
You share cylinder list, drawings, or photos with working conditions. We ask targeted questions to avoid mistakes later.
2
Quotation & Technical Confirmation
We send price, delivery time, and technical points for your approval. Adjustments are made before final confirmation.
3
Production & Testing
Cylinders are produced, inspected, and pressure tested. Photos and updates can be shared during production.
4
Packing & Shipment
Cylinders are packed for sea or air shipment, loaded carefully, and shipped with full documents, ready for customs clearance.
Want to start a trial order with your new heavy duty hydraulic cylinder supplier following this process?
Heavy Duty Cylinder FAQ
Answers to common questions buyers ask when choosing a heavy duty hydraulic cylinder supplier.
What makes a cylinder “heavy duty” compared to standard cylinders?
Heavy duty cylinders use thick-wall tubes, larger piston rods, stronger weld structures, and high-performance seals
designed to handle high loads, vibration, and long working hours in harsh environments.
How much pressure can your heavy duty cylinders handle?
Most designs operate between 250–350 bar. For special applications such as mining or steel mills,
we can produce even stronger constructions based on your requirements.
Do you use induction-hardened piston rods for heavy duty conditions?
Yes. Induction hardened rods with hard chrome or nickel plating provide better resistance to bending,
scratching, and corrosion in challenging environments.
Can you supply reinforced welding for extreme vibration?
We offer automatic and semi-automatic welding with full penetration and stress-relief processing,
ideal for cylinders used in mining, demolition, and high-vibration equipment.
What seal brands do you use for heavy duty cylinders?
We use Hallite, NOK, and Parker seals depending on application, temperature, system speed,
and contamination level.
Are your cylinders suitable for dusty, muddy, or corrosive environments?
Yes. We offer dust wipers, marine-grade coatings, chrome/nickel rod plating, and long-life seals
specifically for heavy contamination or coastal conditions.
Do you provide testing reports for each heavy duty cylinder?
Every cylinder is pressure tested, leakage tested, and inspected before shipment.
Test reports or videos can be provided upon request.
Can heavy duty cylinders be customized for OEM equipment?
Yes. Bore, rod, stroke, ports, mounting style, material, and coatings can be fully customized
to match your machine’s design and working environment.
Get Heavy Duty Hydraulic Cylinders Built for Your Machines
Topa designs and produces heavy duty hydraulic cylinders for excavators, loaders, trailers, presses and special equipment. From bore size and rod diameter to mounting style and coating, every cylinder is matched to your real working pressure, load and environment, so it can run longer with fewer leaks and less downtime.
- Heavy duty cylinder designs with thick-wall tubes and large piston rods for high load and high pressure.
- Custom bore, stroke, ports and mounting (clevis, flange, trunnion, spherical bearing) for your machine layout.
- Induction hardened and chrome plated rods, quality seals (Hallite / NOK / Parker) and heavy duty bearings.
- Each cylinder is honed, assembled and 100% pressure tested with reports available for your records.