Topa manufactures double acting hydraulic cylinders for excavators, trailers, presses, and
agricultural machines.
From single replacement orders to ongoing OEM projects, you get stable
quality, clear drawings, and predictable lead times.
The Topa double acting hydraulic cylinder product line covers welded cylinders, tie rod cylinders, compact cylinders, and special double acting designs for different types of equipment and working conditions.
Welded high pressure double acting hydraulic cylinders for heavy construction and mining equipment that run under high working pressure and long duty cycles.
Double acting hydraulic cylinders used on caravans and trailers for lifting, stabilizing, and leveling systems with compact installation space.
Double acting cylinders designed for front end loaders and equipment where stable extension and retraction control the working arms and buckets.
Double acting hydraulic cylinders for garbage trucks, including compactors, bin lifts, and tailgate systems that need powered forward and return strokes.
HSG series double acting hydraulic cylinders used on general machinery and industrial equipment with standard sizes and interfaces.
Small double acting hydraulic cylinders for hospital beds and medical devices that need quiet and smooth movement in both directions.
Double acting cylinders that control the chute, lift, and angle functions on snow blowers and snow removal attachments in cold environments.
Double acting hydraulic cylinders used on under water well drilling rigs for feed, clamping, and positioning functions.
Welded body double acting hydraulic cylinders for compact machine layouts and mobile hydraulic systems.
WCT double acting cylinders designed for special equipment where mounting and stroke are tailored to the machine.
Double acting hydraulic cylinders for tractors, used on steering, lifts, and implement control systems in agricultural work.
Double acting tie rod hydraulic cylinders for industrial machines, test benches, and hydraulic power units.
If you’re facing leaks, unstable motion, or missed delivery dates, it’s rarely “normal wear”. Most failures trace back to a design, machining, or sealing mismatch with real working conditions.
Seal leakage caused by incorrect seal selection, poor surface finish, or stressed ports leads to downtime, cleanup, and rising maintenance costs.
Jerky extension and retraction often point to air ingress, poor cushioning design, or alignment issues that shorten cylinder life.
Missing key parameters such as bore, rod, stroke, and mounting leads to repeated confirmations and weeks of lost project time.
Production delays caused by unstable machining capacity and rework force you to halt assembly or seek costly alternatives.
When issues appear on-site, lack of technical support leaves you troubleshooting alone with critical equipment at risk.
Early seal wear, rod bending, or internal scoring usually results from mismatched materials, coating, or contamination protection.
Share your bore, rod, stroke, mounting style, working pressure, and application details. Our engineers will review your requirements and respond with drawings, pricing, and risk points before production.
Most performance problems are not random. They are the direct result of design complexity, load direction, sealing strategy, and how well the cylinder matches real operating conditions.
Double acting cylinders contain multiple pressure chambers, seals, and sliding interfaces. Any deviation in machining tolerance, surface finish, or alignment can quickly lead to internal leakage, uneven force output, or premature wear.
Unlike single acting designs, pressure is applied during both extension and retraction. This bi-directional loading places continuous stress on seals, piston rings, and rod coatings, leaving little margin for material or design errors.
The piston and rod seals must maintain pressure integrity in both directions. Improper seal selection, incorrect groove design, or poor installation often results in internal bypass, heat buildup, and loss of efficiency.
In construction, mining, and agricultural equipment, cylinders face shock loads, vibration, contamination, and temperature extremes. These conditions quickly expose weaknesses in materials, sealing, welding quality, and overall structural design.
You don’t need “a cylinder”. You need a cylinder that matches your pressure, duty cycle, mounting load, and environment. Our process is designed to stop leaks, unstable motion, and rework before production starts.
Leaks usually come from wrong seal choice and groove design. We match seal material and structure to pressure, speed, temperature, and contamination level.
Jerky motion is often caused by poor bore finish or incorrect clearance. Controlled honing and fit ensure smooth, repeatable movement.
End-of-stroke impact shortens cylinder life. We design cushioning based on load and speed to reduce vibration and seal damage.
Missing specs cause rework and delays. We lock bore, stroke, mounts, ports, and pressure early with clear drawings.
Double acting hydraulic cylinders use pressure on both sides of the piston to generate push
and pull force. This design gives smooth control, strong load handling, and accurate
positioning for mobile equipment and industrial machines that need reliable forward and
return strokes.
In a double acting hydraulic cylinder, oil is alternately directed into the cap end and
the rod end. This allows the cylinder to extend and retract under power instead of
relying on gravity or external loads.
The design is suitable for excavators, trailers, loaders, garbage trucks, industrial presses, and many other systems where controlled movement in both directions is required.
A double acting hydraulic cylinder has two working chambers: the cap end and the rod end. Directional valves send pressurized oil to one chamber while returning oil from the other, so the piston moves forward and backward under full control.
A double acting hydraulic cylinder has two working chambers: the cap end and the rod end. Directional valves send pressurized oil to one chamber while returning oil from the other, so the piston moves forward and backward under full control.
Topa double acting hydraulic cylinders are engineered for smooth motion control, long service life, and repeatable performance in mobile and industrial hydraulic systems.
The table shows common ranges for Topa double acting hydraulic cylinders. Final values are selected according to your machine type, load, duty cycle, and required safety margin for the hydraulic system.
| Parameter | Typical Range | Notes for Double Acting Cylinders |
|---|---|---|
| Bore diameter | 40–250 mm | Selected according to required push and pull force from the double acting hydraulic cylinder. |
| Rod diameter | 20–140 mm | Sized for load, buckling safety and guidance to keep the double acting rod stable. |
| Stroke length | 100–3000 mm | Defined by machine movement, mounting positions, and available space in the hydraulic system. |
| Working pressure | Up to 250 bar | Higher pressure double acting designs can be offered for special applications. |
| Test pressure | 1.3 × working pressure | Each double acting hydraulic cylinder is pressure tested before shipment for safety. |
| Temperature range | -20 °C to +50 °C | Wide temperature seal options are available for cold or high temperature environments. |
| Barrel material | High strength steel | Honed inner surface provides smooth motion and long seal life in double acting use. |
| Rod surface | Hard chrome plated steel | Resistant to wear and corrosion in outdoor and harsh working conditions. |
If you’re unsure about bore size, stroke length, or working pressure, you’re not alone. Our engineers help customers translate real operating conditions into correct cylinder specifications. Share your load, motion speed, duty cycle, and installation space — we’ll calculate the right parameters and explain why they work.
No obligation. You’ll receive recommended bore, stroke, pressure range, and key design notes before any order is placed.
Correct mounting helps a double acting hydraulic cylinder run smoothly and reduce side load on the rod and seals. Topa offers standard and custom mounting types that match the frame and motion of your hydraulic system.
Your machines and customers are different from other buyers. As a double acting hydraulic cylinder manufacturer, we adjust every important detail based on your drawing, sample, or working condition.
Double acting hydraulic cylinders from Topa are used in many industries, from mobile equipment to fixed industrial machines. The powered push and pull function suits equipment that needs controlled movement in both directions.
Topa is based in Hebei, China. We focus on hydraulic cylinders and related solutions for OEMs, distributors, and maintenance teams that require stable quality and predictable delivery.
We support double acting hydraulic cylinder projects with stable partner factories and a practical engineering team. You get clearer drawings, faster technical feedback, and a production schedule that matches real capacity.
For overseas buyers, the biggest risk is not “price” — it is wrong specifications, inconsistent batches, and late delivery. Our workflow stays close to machining and testing, so key dimensions, sealing structure, and pressure testing are controlled before shipment.
We export to Europe, the Americas, Asia, the Middle East, and Africa. Our team is familiar with export documents, packaging requirements, and common quality expectations. We aim to build repeat orders and long-term cooperation, not one-off deals.
What We Support
OEM builds, aftermarket replacement, private label projects.
Technical Process
Drawing confirmation → machining → assembly → pressure test.
Export Cooperation
Multi-region shipment, packing preferences, documentation support.
Factory + Engineering + QC
A production-connected team that controls machining, assembly, and testing.
Send your drawing, cylinder photos, or application details. We will confirm specifications and reply with a clear quotation and lead time.
Buyers often want a clear picture of production capacity and real workshop conditions. Here you can see where your double acting hydraulic cylinders are machined, assembled, and tested before loading.
Interested in visiting our double acting hydraulic cylinder workshop or arranging a video tour?
Many buyers worry about unstable quality, slow replies, and difficult after-sales support when they change suppliers. TOPA aims to remove those worries by combining engineering support, manufacturing capacity, and responsive communication in one team.
Our engineers review your drawing, working pressure, and application before quoting. If they see risk for bending or leakage, you receive suggestions for rod diameter, wall thickness, and seal choice, helping you avoid problems on site.
Tubes, rods, seals, and welding wire come from stable suppliers. Each batch has a unique code that connects to test reports, so you can find the root cause quickly if there is any issue from a particular shipment.
As a manufacturer based in Hebei, China, we manage cost carefully without cutting corners on materials. Distributors, importers, and maintenance shops keep enough margin while still offering attractive prices to local users.
If something goes wrong, our team acts quickly with technical analysis, replacement parts, or new cylinders. Your customer sees that you take responsibility, and you keep their trust for future double acting cylinder orders.
Looking for a supplier who can handle engineering questions and commercial details in the same email thread?
Topa offers OEM and ODM services for double acting hydraulic cylinders, including logo, color, packaging, and specification customization. This helps distributors and wholesalers build their own brand while keeping stable quality and reliable supply.
Add your company logo on the double acting cylinder body, nameplate, and label. Options include laser marking, screen printing, and name tags for a clean branded look.
Choose cylinder paint colors that match your brand or machine line. We can supply standard RAL colors, anti-corrosion coatings, or special finishes for harsh climates.
Design cartons, labels, and wooden crate markings with your brand name and model codes. This makes your double acting hydraulic cylinders ready for direct resale.
Bore, rod, stroke, ports, and mounting can be adapted to your machine standard. We help unify specifications across your range to reduce inventory complexity.
Many cylinder failures are not manufacturing defects. They are the result of incorrect selection, incomplete information, or mismatched operating conditions.
Calculating force without considering duty cycle, speed, and side load often leads to undersized cylinders. The result is seal wear, overheating, and unstable motion.
Rigid mounts and poor alignment introduce continuous side load. This causes rod scoring, bushing failure, and premature leakage.
Different temperatures, speeds, and oil types require different seal compounds. Using generic seals is a common reason for early leakage and internal bypass.
End-of-stroke impact damages seals and mounts. Skipping cushioning leads to noise, vibration, and shortened service life.
Missing information on ports, mounting, or working pressure causes repeated revisions and wrong builds. This is a major source of delivery delays and rework costs.
Lower price often means compromises in materials, machining, or testing. The real cost shows up later as downtime, replacements, and maintenance labor.
Below are some typical cooperation stories with importers, maintenance shops, and machine manufacturers who chose Topa as their double acting hydraulic cylinders manufacturer.
A European distributor needed reliable bucket and boom cylinders for loaders working in quarry sites. TOPA adjusted rod diameter and seal choice based on their early failures with another supplier. Complaint rate dropped sharply, and their market share increased.
A farm equipment supplier needed several sizes of double acting cylinders for small implements. Low MOQ, mixed pallets, and clear labels helped them keep stock under control while offering fast replacement service to local farmers.
An industrial press manufacturer asked for specific stroke, built-in cushions, and branded nameplates. We developed pilot cylinders for testing, then moved to batch production with strict packing and labeling rules to match their own brand image.
Real feedback from importers, repair workshops, and equipment manufacturers who chose Topa double acting hydraulic cylinders.
“We started with one container of double acting cylinders and were worried about field complaints. Two years later, the failure rate is still very low, and our farmers trust this product range.”
“Technical questions are answered very quickly. When our customer requested a change on port position, Topa adjusted the drawing and sample without delaying the overall lead time.”
“Communication is smooth, and packing is strong. For rental machines working 24/7, we prefer to use their double acting cylinders because we see fewer leaks compared to previous suppliers.”
For small orders and emergency replacements, slow shipment hurts your reputation. We organize raw materials, semi-finished stock, and flexible scheduling, so your double acting hydraulic cylinders ship on time.
Drawings and requirements receive feedback within 24 hours. We confirm specification and packaging details at once, avoiding back-and-forth delays.
For standard double acting cylinders, we use existing tooling and jigs. This brings shorter lead time and more stable quality from batch to batch.
Sea shipment for large orders, plus air or express options for urgent cylinders or spare parts. We cooperate with experienced forwarders for hydraulic products.
Production and shipping updates keep you and your customer informed. Photos, packing lists, and tracking details are shared in time.
Have an urgent double acting cylinder order that cannot wait?
Here are some common questions buyers ask before working with a new double acting hydraulic cylinders manufacturer.
Double acting cylinders generate force in both directions, making them suitable for equipment requiring powered extension and retraction. You can choose bore, rod, stroke, mounting, and pressure level according to your machine’s load, cycle speed, and working environment.
We provide sample or pilot double acting cylinders based on your drawing or a reference sample. You test them on your equipment, then we adjust seals, tolerances, or mounting details according to your feedback before moving into batch production.
Standard TOPA double acting hydraulic cylinders support working pressures up to 250 bar. For mining, industrial presses, or heavy construction machinery, we can design thicker tubes, stronger rods, and upgraded seals to handle higher pressure and shock loads.
Seal selection depends on pressure, temperature, oil type, and cycle speed. We can supply seal kits from Hallite, Parker, SKF, and other brands. For dusty or abrasive environments, we recommend heavy-duty wipers, extra rod protection, and high-temperature or low-temperature seal materials.
Yes. Many customers send us a damaged or worn cylinder from an old or imported machine. We measure it, check the mounting and ports, and then produce a matching or improved double acting cylinder. Non-standard port threads or special mounting types can also be reproduced.
Service life depends on load, pressure stability, and maintenance. With correct seal selection, honed tubes, proper filtration, and regular inspection, double acting cylinders can run for thousands of cycles. For harsh duty, we can recommend stronger rods, better coatings, and upgraded seals to extend lifetime.
Get direct access to factory pricing, custom solutions, and a stable supply of hydraulic cylinders that match your real working conditions. Our engineering and sales teams will review your requirements carefully, share clear drawings and quotations, and keep you updated from production to shipment, so there are no surprises on quality or delivery time.