Bucket Truck Welded Hydraulic Cylinder
Designed for aerial lift trucks, providing stable lifting force and reliable long-stroke performance.
Professional Welded Hydraulic Cylinders Manufacturer in China
20+ years of expertise in designing and manufacturing high-performance welded hydraulic cylinders for construction, mining, and industrial applications worldwide.
- Custom Solutions & OEM Services
- Fast Delivery to 30+ Countries
- Factory-Direct Competitive Pricing
Welded Hydraulic Cylinder Product Types
We manufacture a wide range of welded hydraulic cylinders to match your machine’s working conditions, sizes, and mounting requirements.
Dump Truck Welded Hydraulic Cylinder
Heavy-duty welded cylinders for dump bodies, ensuring efficient lifting under extreme load conditions.
Cross Tube Welded Hydraulic Cylinder
Popular universal-style welded cylinder with cross-tube ends for construction, trailers, and industrial equipment.
Loader Hydraulic Welded Cylinder
Durable cylinders built for loaders, offering high pressure resistance and smooth controlled motion.
Welded Rear Flange Hydraulic Cylinder
Rear flange mounting for compact installation where alignment and stability are required.
Welded High Pressure Hydraulic Cylinder
Engineered for heavy machinery with high working loads, reinforced welds, and premium sealing systems.
Welded Hydraulic Ram Cylinder
Simple, compact single-acting welded ram for lifting, pushing, or jacking applications.
Real-world buyer pains
Common Issues We See Before the Order
Wrong welded cylinder design → not repairable later
Once it leaks, you discover the gland style, port layout, or weld structure makes teardown impossible. What should be a seal change turns into a full replacement.
Unclear duty conditions → seals fail too early
Temperature swings, side load, shock pressure, fluid type, and cycle frequency decide the seal system. If the application is “unknown”, failure is only a matter of time.
Only chasing the lowest price → weak batch consistency
Small deviations in bore finish, rod plating, thread tolerance, or seal hardness become big problems when you scale to repeat orders.
No clear spec checklist → wrong ports, mounts, stroke
A “close enough” drawing leads to fitment issues on arrival: port type, mount style, pin size, or closed length doesn’t match the machine.
You Don’t Need “A Cylinder”. You Need the Right Outcome.
Duty Condition Review
We confirm pressure spikes, side load, temperature, fluid type, and cycle frequency—so the design matches real use.
Structure & Mount Selection
We choose the best body style, mount type, port direction, and stroke package for fitment and reliability.
Seal System Matching
We match materials and profiles to your conditions, reducing leaks from heat, contamination, and shock pressure.
Stable Batch Delivery
We control tolerance, surface finish, plating, and inspection points to keep repeat orders consistent.
Drawing Review & First Article
We confirm critical dimensions before mass production—reducing installation issues and rework costs.
OEM & Replacement Support
Need to match an existing cylinder? We support cross-reference, sample-based development, and fast iteration.
Tip: If you share your working pressure, stroke, mount type, and rod/bore size (or a photo of the existing cylinder), we can quickly tell whether a welded cylinder is the right choice—and what to change to improve service life.
Product Overview
What is a Welded Hydraulic Cylinder?
A welded hydraulic cylinder is a cylinder where the barrel and end caps are permanently welded together, forming a single rigid body that resists bending and twisting during heavy work.
Key Characteristics
- Compact structure for machines with limited installation space.
- Strong welded joints that handle shock, vibration, and side loads.
- High load capacity and long service life under continuous duty.
Welded vs Tie-Rod Hydraulic Cylinders
- Welded cylinders use a smooth barrel with welded ends, while tie-rod cylinders use external tie rods to hold end caps in place.
- Welded designs usually offer a smaller outer size for the same bore and stroke, which saves space on compact equipment.
- Welded cylinders handle vibration and side loads better in mobile and heavy-duty applications, such as construction and mining machines.
Welded Hydraulic Cylinder Technical Specifications
Detailed technical information about our welded hydraulic cylinder construction and performance characteristics.
Technical Specifications
| Bore Range | 40mm - 300mm |
| Rod Diameter | 25mm - 200mm |
| Stroke Length | Up to 10,000mm |
| Working Pressure | 16-35 MPa |
| Temperature Range | -40°C to +80°C |
| Tube Material | ST52 / 20# / 45# Steel |
| Rod Material | CK45 Chrome Plated |
Get detailed specifications for your welded hydraulic cylinder project
Core design differences
What “Good” Looks Like in Welded Hydraulic Cylinder Design
Engineering Logic: You vs Typical Market Approach
| Area |
Your Design Logic
Typical Market Logic
|
|---|---|
| Tube Wall Logic |
Engineered
Wall thickness is selected by working pressure, pressure spikes, bore size, and safety factor— not by “thicker is better”.
One-size
A standard tube is used across multiple models. Problems appear when shock pressure or side load increases. |
| Welding Process |
Controlled
Weld sequence and heat input are managed to reduce distortion, improve alignment, and keep concentricity stable.
Fast output
Speed-focused welding can lead to distortion or misalignment, causing uneven wear on seals and bearings. |
| Cushioning |
Matched
Cushioning is designed around load, speed, and stroke. It reduces end-of-stroke shock and protects mounts.
Optional / generic
Cushion is skipped or kept generic, leading to hard stops that accelerate fatigue and loosen hardware. |
| Seal Groove Design |
Stable sealing
Groove geometry supports correct compression, reduces extrusion, and keeps seals stable under pressure spikes.
Basic groove
A simplified groove may work at low duty cycles, but can leak earlier under heat, contamination, or shock load. |
Design details that affect service life
Less leakage from alignment control
Concentricity and straightness affect bearings and seals. Better alignment means less abnormal wear.
Longer service life in real duty cycles
Seal groove + cushioning + surface finish work together. One weak link shortens the whole system life.
More consistent repeat orders
Design logic + process control reduce variation across batches—lowering warranty and returns.
Fewer “unknowns” during installation
Fitment details (ports, mounts, stroke package) are verified early, avoiding delays on arrival.
Welded Cylinder Mounting Options
Choose the mounting style that best fits your machine’s installation space and movement requirements.
Clevis
The most common mounting style, allowing pivoting movement for loaders, excavators, and agricultural machines.
Trunnion
Ideal for applications requiring rotation around a fixed axis, commonly used in dump trucks and presses.
Flange
Secure rigid mounting option used in industrial automation, presses, and fixed installations.
Spherical Bearings
Allows multi-directional movement, reducing side load and friction in dynamic machinery.
Why Welded Cylinders Perform Better
Designed for harsh working conditions, welded hydraulic cylinders deliver stronger structure, higher pressure capability, and long-term reliability.
Compact Size
Space-saving structure for machines with limited installation space.
Strong Welded Joints
Reinforced welds ensure structural stability under vibration and impact.
High Pressure Capability
Optimized barrel and weld strength support high working pressures.
Long Service Life
High-grade materials and precision finishing extend operational lifespan.
Heavy-Duty Sealing System
Advanced seals prevent leakage even under pressure spikes.
Zero-Maintenance Structure
Fully welded housing eliminates tie-rod adjustments and routine tightening.
Welded Hydraulic Cylinders in Real Applications
From construction sites to farms and mines, Topa welded hydraulic cylinders keep critical equipment running safely and smoothly.
Construction Equipment
Boom, arm, and bucket cylinders for excavators, loaders, and bulldozers working in tough job sites.
Mining Machinery
High-pressure welded cylinders for dump trucks, drilling rigs, and underground mining equipment.
Agricultural Equipment
Cylinders for tractors, harvesters, loaders, and attachments used in daily farm operations.
Need welded hydraulic cylinders for your machines?
Reliable Delivery for Welded Hydraulic Cylinders
Streamlined production and logistics ensure your welded hydraulic cylinders arrive on time, every time.
20-30 Days Standard
Standard welded hydraulic cylinders ship within 10-20 days from order confirmation.
35-45 Days Custom
Custom welded cylinder designs delivered in 25-35 days depending on complexity.
Rush Orders Available
Emergency welded hydraulic cylinder orders can be expedited for urgent projects.
Global Logistics
Experienced freight partners ensure safe delivery of welded cylinders worldwide.
Custom Welded Hydraulic Cylinder Solutions
Complete OEM and customization services to engineer welded hydraulic cylinders that perfectly match your specifications.
Customization Options
Design the perfect welded hydraulic cylinder for your application
About Topa - Your Welded Hydraulic Cylinder Partner
Established manufacturer dedicated to delivering premium welded hydraulic cylinders with unwavering quality commitment.
Topa Hydraulic Company has been a leading welded hydraulic cylinders manufacturer since 2005, serving customers across 30+ countries with reliable hydraulic solutions.
Our 50+ person manufacturing facility in Shijiazhuang, Hebei Province combines advanced equipment with skilled craftsmanship to produce welded hydraulic cylinders that meet the most demanding applications.
With ISO 9001 certification and adherence to international standards, we've built our reputation on quality, reliability, and customer satisfaction in the welded cylinder industry.
From initial design consultation to after-sales support, our experienced engineering team ensures your welded hydraulic cylinder project succeeds.
2005
Established
50+
Team Members
30+
Export Countries
10K+
Annual Production
Hydraulic Cylinder Factory Overview
Topa’s factory integrates CNC machining, professional welding, surface finishing, honing, assembly, and 100% testing to deliver stable welded hydraulic cylinder quality for global buyers.
CNC Center
Precision CNC turning and milling for cylinder barrels, pistons, and rod ends with tight tolerances.
Welding Line
Automated and manual welding stations form strong welded joints between barrels, flanges, and mounts.
Polishing
External polishing and surface treatment improve corrosion resistance and visual appearance.
Honing
Hydraulic cylinder tubes are honed to achieve smooth internal surfaces and correct tolerances for sealing.
Assembly Line
Skilled technicians assemble rods, pistons, seals, and end caps into complete welded hydraulic cylinders.
100% Testing
Every cylinder is pressure- and leakage-tested before packing to secure reliable performance in the field.
Before You Order a Welded Cylinder, Avoid These Mistakes
“Welded cylinders can’t be repaired”
A welded cylinder can be serviceable if the gland style, weld structure, and seal layout are designed correctly. Poor design—not welding—is what makes repairs impossible.
“Pressure rating is all that matters”
Pressure alone does not define durability. Side load, shock pressure, cycle frequency, and speed decide whether seals and bearings survive long-term use.
Wrong mounting choice causes ear or clevis failure
Ignoring side load direction and misalignment can crack mounts or tear off welds— even if the cylinder body itself is strong enough.
Lowest price leads to unstable batch quality
Small differences in bore finish, rod plating, or seal groove tolerance turn into big problems when you scale to repeat or OEM orders.
Incomplete drawings cause fitment delays
Missing details like port type, pin size, or closed length often lead to installation issues once the cylinder arrives on site.
Ignoring cushioning shortens system life
End-of-stroke shock damages mounts, frames, and seals. Proper cushioning protects not just the cylinder, but the entire machine.
Field-proven results
Real Cases: OEM & Replacement Projects
Construction Equipment
Welded Cylinder for Loader Attachment
Customer problem
Early seal wear and mount cracking under shock pressure. Previous supplier had inconsistent bore finish across batches.
What we changed
- Reviewed mount type + misalignment risk
- Adjusted cushioning to reduce end-of-stroke impact
- Defined bore finish & groove tolerance control
OEM Batch Program
OEM Repeat Order with Revision Control
Customer problem
Different lots had small dimensional drift, causing fitment delays at assembly line. The team needed predictable receiving and consistent labeling.
What we changed
- First article approval gate before batch release
- Defined inspection checkpoints & key dims report
- Established packaging + label + SKU revision rules
Dump Trailer / Tip
Replacement Cylinder with Fitment Constraints
Customer problem
Cylinder arrived but hose routing interfered with frame. Also, hot climate caused early seal hardening.
What we changed
- Confirmed port type + direction + clearance early
- Matched seal materials to temperature range
- Recommended cushioning to reduce frame shock
OEM & batch program support
How We Support OEM & Repeat Orders
From Drawing to Long-Term Supply
1
Drawing Confirmation
We lock critical dimensions and functional details before production starts.
- Mount type, pin size, closed length & stroke
- Port type, port direction & hose clearance
- Working pressure, shock load & cushioning need
2
First Article Approval
We verify the sample against the approved drawing—then you sign off before mass production.
- Dimensional inspection report (key points)
- Surface / plating check (rod & tube)
- Functional check: smooth movement & leakage control
3
Batch Consistency Control
Repeat orders stay consistent through defined process controls and inspection checkpoints.
- Stable tolerances for bore finish & seal grooves
- Controlled welding sequence to reduce distortion
- Incoming & in-process QC records available
4
Long-Term Supply Support
We help you keep the same specification and delivery rhythm over time.
- Specification file management for repeat SKUs
- Production scheduling for forecast orders
- Packaging & shipping standards for stable receiving
Documented Specs
Approved drawings and revision control keep repeat orders consistent across time and teams.
First Article Gate
You approve the first piece before we release the batch—reducing fitment surprises at receiving.
Stable Batch Output
Process control + inspection checkpoints reduce variation in bore finish, grooves, and rod surfaces.
Long-Term Supply Rhythm
Forecast-friendly scheduling and packaging standards keep receiving and installation predictable.
Welded Hydraulic Cylinder FAQ
Quick, practical answers for buyers and engineers. Click a question to expand.
A welded cylinder has end caps welded to the tube instead of tie rods. This structure is compact, rigid, and well-suited for high load, shock, and vibration applications.
Choose welded cylinders when you need a smaller envelope, higher rigidity, better resistance to side load, and stronger performance in harsh outdoor duty cycles.
Bore, rod diameter, stroke, working pressure, mounting type, port thread/position, seal preference, quantity, and your machine/application. A drawing or nameplate photo helps a lot.
Yes. We can measure and reverse-engineer key dimensions, mounts, ports, and seal systems, then confirm drawings before production to reduce replacement risk.
It depends on bore size, tube material, weld design, and safety factor. Share your required working pressure and peak pressure, and we’ll recommend a suitable design and test plan.
Seal life depends on rod finish, concentricity, gland design, and contamination control. We match seal materials to temperature and fluid, and verify critical tolerances before assembly.
Common options include hard chrome rods, nickel plating, and painted or corrosion-resistant coatings. We recommend treatments based on moisture, salt exposure, and abrasion in your environment.
Yes. Typical checks include pressure/leak testing, stroke verification, function testing, and appearance inspection. Testing level can be upgraded for critical projects.
Lead time depends on design complexity and quantity. Standard configurations are usually faster, while customized mounts/ports/coatings may require additional processing time.
Keep hydraulic oil clean, protect the rod from damage, and inspect mounts for misalignment. If you see scoring, leaks, or slow movement, check contamination and seal wear early.
Partner with a Trusted Hydraulic Cylinder Manufacturer
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.
- Direct factory pricing with no middleman markup
- Custom hydraulic solutions tailored to your specifications
- Fast response within 24 hours for quotes and technical support
- 18+ years of manufacturing experience serving 30+ countries
- Quality assurance with ISO certifications and rigorous testing