Your Professional Telescopic Hydraulic Cylinder Manufacturer
Hangzhou Ginkgo Manufacturing Technology Co., Ltd., established in 2013, is located in Hangzhou, a city in the southeastern part of Zhejiang Province. Ginkgo-MFG is a highly professional manufacturer committed to providing high-quality hydraulic pumps, cylinders, and accessories.
Why choose us
Certification
We have obtained the ISO 9001 quality certification and possess a variety of professional inspection equipment.
Professional Service
We welcome factory and product inspections at any time. We also offer technical consultations and engage in the research and development of new products.
Quality Assurance
In terms of quality assurance, the company strictly adheres to industry standards and quality system regulations, adopting leading practices within the industry.
Sales Market
Our products are exported to Canada, the United States, Mexico, Brazil, Norway, Italy, France, the United Kingdom, Russia, South Africa, Kenya, Saudi Arabia, and other countries and regions.
Telescopic hydraulic cylinder, we also call it as multi stage hydraulic cylinder or combined hydraulic cylinder. It is a kind of special hydraulic cylinder with a wide range of applications. According to the number of telescopic stages, it can be divided into 2, 3, 4, and 5 stage telescopic hydraulic cylinder. According to the number of times of liquid supply to complete a working cycle, there are single acting and double acting multi stage hydraulic cylinders. Among them, the single acting multi stage cylinder is a plunger telescopic hydraulic cylinder. The double acting multi stage hydraulic cylinder is a piston type telescopic hydraulic cylinder. There is also a telescopic hydraulic cylinder in which the last stage is a piston, and the previous stages or one stage are plungers.
Premium Features & Specifications
5-Stage synchronized telescoping delivers industry-leading extension ratios (up to 8:1)
DHeavy-duty construction with 60-250mm bore sizes (15-120 ton capacity)
High-grade steel tubes with precision-hardened chrome rods (HRC 60+)
Advanced multi-lip sealing system (Parker or Hallite options available)
Working pressures up to 300 bar (4,350 psi) for extreme applications
Custom stroke lengths (up to 10 meters) and mounting configurations
Types Of Telescopic Hydraulic Cylinders
Single-acting telescopic cylinders utilize hydraulic pressure to extend the cylinder and rely on external forces, such as gravity or springs, to retract it.
They are commonly used in applications requiring one-way motion, such as lifting or pushing.
Single-acting telescopic cylinders are simple and often used in less demanding applications.
Double-acting telescopic cylinders use hydraulic pressure to extend and retract the cylinder.
These cylinders provide more precise control over the movement of the load and can be used in applications where bidirectional motion is required.
Double-acting telescopic cylinders are more complex in design and are typically used in more demanding applications, such as construction and manufacturing.
Single/double-acting combinations combine the features of single-acting and
double-acting cylinders. They have nested cylinders, which allow for longer extensions.
The outer cylinder acts as a single-acting cylinder, extending with pressure and retracting with external forces.
The inner cylinder acts as a double-acting cylinder, using pressure for extension and retraction.
These combinations provide the benefits of both single-acting and double-acting cylinders, allowing for longer extensions and precise control over the movement of the load.
Through-rod telescopic cylinders have rods that extend through the cylinder, providing a more compact design.
The rod is connected to the load and passes through the nested cylinders, allowing for a direct connection between the cylinder and the load.
Through-rod telescopic cylinders are often used in applications where space is limited or a direct connection to the load is required.
Telescopic hydraulic cylinders are indispensable in a wide range of industrial and construction applications. Here are some key areas where they excel: - Industrial Applications: - Cranes - Excavators - Construction Machinery Applications: - Forklifts - Telescopic handlers - Demolition Equipment: - Breaking concrete structures These cylinders allow for precise and controlled movements, enabling machines to perform tasks that would otherwise be impossible.
Comparison with Non-Telescopic Cylinders
While telescopic hydraulic cylinders offer numerous advantages, non-telescopic cylinders have their own strengths and limitations. - Non-telescopic cylinders are simpler in design and more cost-effective, ideal for single-stage extension applications like car jacks. - Telescopic cylinders offer greater flexibility and reach, making them suitable for applications requiring multiple stages of extension, such as aerial work platforms. For example, a crane boom designed with telescopic cylinders can reach higher and extend to different angles, increasing its functionality. In contrast, a non-telescopic crane boom has limited extension capabilities, making it less versatile.
Optional Features
Custom mounting for flexibility
Skip sleeve option- for a higher retract force
Valve integration
Independent double acting stages
Telescopic Hydraulic Cylinder Design
The smallest part is referred to as the rod or plunger, while the greatest diameter tube is termed the barrel, just like in a traditional single rod cylinder. A telescopic cylinder has one or more stages, which are nested tubes with a decreasing diameter from the outer barrel. It appears that six steps is the maximum number. It is theoretically possible to create a cylinder with more phases, but stability becomes a problem. The cylinders with three or four stages are rather common.
A telescoping cylinder’s stages usually go from largest to smallest. Before the following stage moves, the largest stage will finish its stroke. This keeps going until the cylinder reaches its total extended length and all stages are fully stretched.
FAQ
We're professional telescopic hydraulic cylinder manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to wholesale cheap telescopic hydraulic cylinder from our factory.
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