Telescopic Hydraulic Cylinders | Tianjin Uranus | Long-Stroke, Space-Saving Design

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Tianjin Uranus: Leading the Way in Telescopic Cylinder Manufacturing

Tianjin Uranus: Leading the Way in Telescopic Cylinder Manufacturing

At Tianjin Uranus, we take pride in our expertise in manufacturing telescopic cylinders. Composed of multiple nested piston cylinders, our telescopic cylinders can achieve multi - stage telescopic motion, featuring a long stroke when extended and a compact size when retracted. They are ideal for applications where large stroke lengths are required but installation space is limited, such as in fire truck ladders, crane booms, and truck body lifting systems. We use high - quality materials and advanced manufacturing techniques to ensure the performance and longevity of our telescopic cylinders.
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Why choose us?

Multi - Stage Extension Capability

With multi - stage extension capability, our telescopic cylinders deliver precise and smooth motion across various industries. The sequential extension mechanism ensures stable operation even at maximum stroke, providing consistent force output. This capability makes them suitable for demanding applications requiring long - range movement.

High - Strength Construction for Telescopic Cylinders

We construct our telescopic cylinders with high - strength materials to withstand heavy loads and harsh conditions. The robust design resists deformation and wear, ensuring reliable performance in outdoor and industrial environments. This durability translates to reduced maintenance costs and increased equipment uptime for our customers.

Tailored Solutions for Telescopic Cylinder Applications

Understanding that each application has unique requirements, we provide tailored solutions for telescopic cylinder applications. Our engineers work closely with customers to design cylinders that match specific stroke lengths, pressure ratings, and environmental conditions. This personalized approach ensures optimal performance and customer satisfaction.

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Designed for bidirectional force application, our double acting telescopic cylinders feature independent hydraulic ports for extension and retraction, enabling controlled movement under load. The retraction stage uses a larger piston area to generate higher retraction force, ideal for heavy-duty applications like mining dump trucks and recycling compactors. Hardened steel guide rings (65 HRC) and scraper seals protect against abrasive particles, while the nickel-plated cylinder bores (Ra ≤0.8μm) reduce friction. These cylinders offer up to 40,000 cycle life under full load, with a retraction speed up to 1.5 times faster than single-acting models. The design incorporates a pressure equalization circuit to prevent cavitation during rapid retraction. For marine applications, we offer stainless steel versions (316SS) with marine-grade seals. Contact us for duty cycle test results or view our double acting cylinder case studies.

Frequently Asked Questions

What is the working principle of a telescopic cylinder?

A telescopic cylinder consists of multiple nested piston cylinders. When hydraulic oil is supplied, the outermost cylinder extends first, followed by the inner cylinders in sequence, achieving a long - stroke extension. During retraction, the process is reversed, and the cylinders retract one by one, resulting in a compact size when retracted.
Mainly used in scenarios where a large stroke is required but the installation space is limited. For example, in fire truck ladders, where they need to extend to high floors for rescue operations; in crane booms for reaching different working radii; and in truck - mounted platforms for lifting and transporting goods.
Regularly check for oil leakage at the joints of each cylinder section and replace the seals in time if there is leakage. Clean the outer surface of the cylinder to prevent dirt and debris from entering the cylinder. Also, check the hydraulic oil level and quality regularly and perform oil changes as required.
Yes, the company can provide telescopic cylinders with special requirements, such as customized stroke lengths, high - pressure resistance designs, and special materials for use in harsh environments, to meet the diverse needs of customers in different industries.

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Customer Reviews

Kevin White

The telescopic cylinders from Tianjin Uranus have been a game-changer for our fire truck manufacturing. The ability to achieve a long stroke while maintaining a compact retracted size is exactly what we needed for our aerial ladder designs. The multi-stage extension is smooth and reliable, even at full extension. The build quality is exceptional, and we've had no issues with leakage or mechanical failure. Highly recommended for applications with space constraints.

Megan Johnson

We use Tianjin Uranus' telescopic cylinders in our crane arm systems, and they have proven to be extremely reliable. The cylinders handle heavy loads with ease, and the sequential extension mechanism ensures stable operation. We've tested them in various weather conditions, and they maintain consistent performance. The maintenance requirements are minimal, which is crucial for our mobile equipment that's always on the go.

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Space - Saving and Long - Stroke Telescopic Cylinders

Space - Saving and Long - Stroke Telescopic Cylinders

Our telescopic cylinders are ingeniously designed with multiple nested piston barrels. This design enables them to achieve long - stroke extension while maintaining a compact size when retracted. They are ideal for applications where installation space is limited but a large stroke is required, like in fire truck ladders, crane booms, and truck bed lifting systems. The high - strength materials used in their construction ensure they can withstand heavy loads during the telescoping process, providing reliable performance in various working conditions.