01
Raw Material & Cutting
Tube / Rod
Verified material grade, then cut to length with traceable batch control.
Replacement Hydraulic Cylinders
Direct Replacement Hydraulic Cylinders Manufacturer In China
Match by OEM part number or installation dimensions. Get a cylinder that fits your equipment without modification. Stable quality, fast production, and reliable supply for repeat orders.
OEM part number matching
Exact mounting dimensions
Pressure tested before shipment
Fast production lead time
Topa Replacement Cylinders for Main Equipment Brands
Match by mounting style, pin sizes, stroke, and port position. Keep the same installation points, so your replacement installs without reworking brackets or hoses.
Caterpillar
Direct-fitKeep mounts and stroke unchanged. Confirm pins and ports once, then swap without bracket rework.
Komatsu
Same mountsMatch by pin-to-pin, pin bore, and port layout so hose routing stays clean and consistent.
XCMG
Stable liftConfirm bore/rod and installation geometry to restore lifting behavior and reduce downtime.
Volvo CE
Fit checkedMatch installation dimensions and ports so motion stays the same and service stays simple.
John Deere
PredictableKeep stroke and mounting points unchanged. Faster replacement across fleets and attachments.
Hitachi
Less reworkConfirm pins, ports, and mount style so you avoid bracket changes and hose rerouting.
Liebherr
Same geometryInstallation geometry is verified before build so linkages line up as expected on site.
Doosan
Fast matchShare OEM info or photos. You receive a confirmed match that installs without surprises.
JCB
Direct swapMatch closed length, stroke, pins, and ports so lifting height and hose routing stay unchanged.
Drop-In Fit You Can Verify Before You Pay
As a buyer, you don’t want “should fit.” You want proof. This section shows the exact installation points we match and how we confirm them with you before production. The goal is simple: your cylinder bolts in, hoses connect cleanly, and your machine goes back to work.
Mounting Dimensions
Pin-to-pin confirmed
We confirm retracted length and pin center distance so you don’t need to drill, cut, or move brackets.
Pin Eye Sizes
Same bore & width
Rod eye / clevis width and pin hole size match your existing hardware to keep the joint tight and stable.
Stroke Length
Correct travel range
Stroke and closed length are matched so your machine reaches the same end positions without over-travel.
Port Threads
Threads & position aligned
We confirm port thread type and port direction so your hoses connect without stacked adapters or rerouting.
What “Drop-In” Means in Real Installation
A drop-in replacement keeps your machine unchanged. The mounts line up, pins slide in, and the ports connect to your current hose ends. You replace the cylinder and get back to production—without extra shop work.
Mounts matched: Clevis / Cross Tube / Trunnion / Flange
Ports matched: SAE O-ring / NPT / other threads by request
Built With Parts That Hold Pressure and Keep Seals Stable
Better materials reduce leakage risk and keep motion consistent. That means less cleanup, fewer repeat repairs, and more stable cycles.
Sealing System
A stable seal stack keeps oil where it belongs. You get smoother motion and cleaner work areas.
Premium seal brands like Hallite / SKF, or same-grade equivalents
Wiper + rod seal pairing to cut contamination entry
Seal grooves matched to common OEM profiles
Chrome-Plated Rod
A strong rod surface resists corrosion and scoring. You get longer seal life and fewer rod-related leaks.
Chrome layer thickness controlled for wear resistance
Surface finish supports smooth seal travel
Corrosion protection for outdoor equipment
Honed Tube
A consistent bore supports sealing stability under pressure. You get smoother cycles and less internal wear.
Precision honed bore for stable seal contact
Material selection matched to working pressure
Clean internal finish helps reduce stick-slip
How to Identify Your Cylinder Without an OEM Part Number
Measure the points that control fit. Share the numbers and a photo of the mounts and ports. You get a matching option with clear installation confirmation before production starts.
Key Dimensions to Send
Send: retracted length, extended length, bore, rod, pin size,
mount photos, and a clear port thread photo.
5 Quick Measurements
These five points decide fit and travel. They also reduce back-and-forth during confirmation.
01
Retracted Length
Pin-to-pin distance when the cylinder is fully closed.
02
Extended Length
Pin-to-pin distance when the cylinder is fully extended.
03
Bore Diameter
Inside tube diameter. This defines the force output of the cylinder.
04
Rod Diameter
Rod thickness for strength, stability, and seal compatibility.
05
Pin Size & Width
Pin bore and mounting width to confirm bracket compatibility.
Where These Replacements Are Used in North America
Replacement cylinders are common in fleets and seasonal equipment. A correct match keeps downtime short and keeps jobs on schedule.
Dump Trucks & Hoists
Telescopic and welded cylinders matched for lift height and mounting points. Faster swap means the truck goes back to work sooner.
Snow Plows & Municipal
Cylinders matched for stroke and port thread help crews keep spares ready. Less waiting helps during peak snow events.
Agricultural Tractors
Tie-rod and welded replacements matched for mounts and travel. Reduced downtime helps during planting and harvest windows.
Loaders & Excavators
Lift, tilt, and bucket cylinders matched for mounts and port direction. Clean hose routing helps reduce rework time during replacement.
Forklifts & Material Handling
Steering and lift cylinders matched for stroke and port threads. Stable sealing helps reduce leakage around warehouses.
Road Maintenance & Paving
Cylinders matched for cycle stability and port layout. Reliable fit helps crews avoid on-site fabrication.
Why Choose Topa Replacement Cylinders
Topa provides replacement hydraulic cylinders that match OEM installation dimensions and working performance. Our engineering and manufacturing process focuses on stable sealing, accurate machining, and reliable pressure testing.
Exact Installation Match
Mounting size, pin diameter, stroke length, and port position are verified to match OEM installation dimensions, helping equipment return to work without modification.
Stable Sealing System
Seal combinations are selected according to pressure and working conditions to maintain stable performance and reduce leakage during long-term operation.
Precision CNC Machining
Cylinder tubes, rods, and key components are processed with CNC equipment to keep bore tolerance, surface finish, and assembly accuracy consistent.
Pressure Tested Cylinders
Each cylinder undergoes pressure and leakage testing before shipment to confirm sealing performance and operational safety.
OEM Reverse Engineering
If an original part number or drawing is unavailable, our engineering team can analyze samples or installation dimensions and create matching replacement cylinders.
Consistent Production for Repeat Orders
Stable material supply, standardized machining processes, and controlled inspection procedures help maintain consistent quality across repeated batches.
Modern Production Setup Built for Repeat Orders
After you confirm fit, what matters next is stable output. Equipment, process control, and skilled operators keep batches consistent.
6 Key Processing Steps
Each step is controlled to reduce variation between units, so repeat orders stay consistent.
02
CNC Machining
Ports / Ends
Machining for tube ends, gland, piston, and port features to keep dimensions stable.
03
Honing & Bore Finish
Tube
Controlled surface finish helps sealing stability and reduces early leakage risk.
04
Welding & Fabrication
By Type
Fixture-based welding keeps joint location consistent across batches.
05
Seal Install & Assembly
Clean Area
Standardized assembly steps and checks on critical clearances and seal grooves.
06
Pressure Test & Packing
Final
Leakage and function testing, then protective packing for transit safety.
Tip: If you have factory photos, replace each image URL with your own. Keep the same aspect ratio (16:10) for a clean grid.
Process Checks + 100% Pressure Test Before Shipping
Quality work reduces leakage complaints and fit issues on arrival. Each unit is tested before it leaves the line.
Incoming Material Check
Material verification reduces variation from the start and keeps batches stable.
In-Process Sampling
Key dimensions are checked during machining so issues are caught before assembly.
Surface & Fit Checks
Rod finish and seal groove condition help reduce early leaks and uneven wear.
100% Pressure Test
Every cylinder is tested for leakage and pressure holding before packing.
Reverse Engineering for One-to-One Replacement Builds
If you only have a damaged cylinder or a sketch, we can measure, redraw, and build the match. This helps you keep equipment running even when OEM supply is slow.
3-Step Reverse Engineering Workflow
Fast confirmation with drawings, then stable build and test for direct replacement installs.
Measure & Record
We capture mount points, port position, and travel to lock the fit.
Draw & Confirm
We redraw the cylinder and send the drawing for your approval.
Build & Test
We build to the confirmed spec and test before packing and shipment.
Topa Lead Time Built for Repeat Distributor Orders
Topa supports distributors with stable output, clear batch scheduling, and export-ready packing. Send your OEM part numbers or installation sizes, and we confirm specs before production to keep repeats consistent.
Topa Batch Scheduling
We plan production by batch and destination so your purchase orders stay predictable. For repeat items, we keep the same drawing/spec record to reduce reconfirmation time.
Standard Parts + Custom Ready
Topa supports both standard replacement builds and custom changes (ports, mounts, stroke, seals). Once confirmed, we lock the bill of materials for stable repeat orders and cleaner lead time control.
Export Packing by Topa
Each cylinder is protected to help prevent rod damage and corrosion during transit. We can align labels, carton marks, and packing list format for your warehouse receiving process.
Send your target quantity, destination, and required model list. Topa will reply with lead time, packing method, and a repeat-order plan.
Clear Answers Before You Place an Order
Can you make a one-to-one replacement for my OEM part number?
Yes. Share the OEM brand + part number, cylinder function (lift / tilt / outrigger), and quantity.
We confirm mounting style, stroke, ports, and load rating before production.
If I don’t have a part number, what measurements do you need?
Send retracted length, extended length, stroke, bore, rod diameter, and pin sizes.
Add clear photos of both mounts and the port/thread area to avoid fit mistakes.
What port thread types can you match (SAE, NPT, BSP, metric)?
We can match SAE ORB/SAE flange, NPT, BSPP/BSPT, and common metric threads.
A close-up port photo (or thread callout) helps reduce adapters and hose rework.
What is the MOQ for replacement hydraulic cylinders?
MOQ depends on whether the model is a common build or a special design (mounts, ports, seals).
Send the part number/drawing and your target volume to get a clear MOQ and price tier.
How do you confirm the cylinder will fit my machine?
Fit confirmation is based on OEM part number cross-check or measured mounting points.
We provide a drawing for approval so key installation sizes are locked before production.
What is your lead time for repeat orders and stable batches?
Lead time depends on cylinder type, size, seal/rod spec, and order quantity.
For repeat orders with confirmed drawings, production is faster because the build spec is already fixed.
Do you do 100% pressure testing before shipping?
Yes. Each unit is pressure tested for leakage and holding performance before packing.
If you have a required test pressure or cycle count, include it in your RFQ.
Can you upgrade seals or materials for harsh environments?
Yes. We can match or upgrade seals based on temperature, fluid type, dust/mud, and duty cycle.
Share your working conditions so we recommend the right seal set and surface treatment.
What if the replacement doesn’t match after it arrives?
Share photos, measurement results, and the approved drawing reference.
We support a correction plan based on the confirmed spec (fit points, ports, and stroke).
How can I get the fastest quotation for replacement cylinders?
Fastest path: OEM part number + quantity + destination port/country.
If there’s no part number, send the key measurements plus mount and port photos for quick confirmation.
Get a Confirmed Cylinder Match for Your Equipment
No OEM part number? That’s fine. Send your installation sizes and a few photos of the mounts and ports. Topa will confirm the build and reply with a clear quotation and lead time.
- Match by dimensions: retracted/extended length, bore, rod, pin size, mount width.
- Port confirmation: thread type + port direction to keep hose routing clean.
- Build options: welded / tie-rod / telescopic, seals and pressure level based on application.
- Distributor-friendly: stable batches, repeat specs, packing marks and label format support.