Jiaheng Hydraulic specializes in manufacturing custom telescopic hydraulic cylinders for excavators, providing reliable hydraulic solutions for anchor excavators, crawler cranes, mobile cranes, drilling equipment, and other heavy-duty machinery. Our telescopic hydraulic cylinders are designed with multi-stage structures to achieve longer stroke lengths while maintaining a compact installation size, meeting the requirements of space-limited engineering applications.
With advanced manufacturing capabilities and strict quality control, Jiaheng provides OEM hydraulic cylinder solutions according to customers' drawings, technical specifications, and equipment requirements.
A telescopic hydraulic cylinder is a multi-stage hydraulic actuator consisting of two or more nested cylinder sections. Compared with conventional hydraulic cylinders, it can provide a significantly longer extension stroke while requiring less installation space when retracted.
For excavators and special construction equipment, custom telescopic hydraulic cylinders are widely used when standard cylinders cannot meet stroke length, mounting space, or working condition requirements.
Typical applications include:
● Anchor excavators
● Crawler drilling machines
● Mobile cranes
● Construction machinery
● Mining equipment
● Special engineering vehicles
Advantages and Characteristics
Adaptability to high dust environments:
The sealing system adopts a polyurethane+metal skeleton composite structure, combined with a cylinder head labyrinth dustproof ring (dustproof level IP68), which can effectively block coal dust intrusion and maintain sealing performance in environments with dust concentration ≥ 1000mg/m ³;
The surface of the piston rod is coated with a ceramic coating (thickness 0.3-0.5mm, hardness ≥ HV1200) by supersonic plasma spraying, which improves the wear resistance by three times compared to traditional chrome plating and is suitable for high-frequency expansion and contraction operations during coal and rock cutting.
Explosion proof safety system:
The entire series has passed MA coal mine safety certification, and the hydraulic system uses flame-retardant hydraulic oil. The surface of the oil cylinder has undergone anti-static treatment (surface resistance ≤ 1 × 10 ΩΩ) to eliminate the risk of friction sparks;
Built in explosion-proof balance valve+dual liquid control lock, with a locking error of ≤ 1.5mm for the cutting arm in case of sudden pressure loss, to prevent the cutting head from falling; The cylinder head is equipped with an overpressure protection device (with an opening pressure of 1.3 times the rated pressure), which is suitable for underground explosion-proof requirements.
Compact structural design:
Adopting a compact single cylinder double acting layout, the installation space is reduced by 40% compared to traditional double cylinder solutions, making it suitable for the narrow underground working space of anchor excavators;
Weight reduction of 25% compared to the same parameter oil cylinder (such as a cylinder with a diameter of 120mm and a weight of ≤ 85kg), reducing the overall load of the machine and improving mobility.
Applications of Excavator Telescopic Hydraulic Cylinder
Anchor Excavator
Telescopic hydraulic cylinders are commonly used in anchor excavators where long reach and precise hydraulic movement are required. The compact design allows equipment manufacturers to achieve extended working ranges without increasing machine size.
Mobile and Crawler Cranes
For lifting equipment, hydraulic cylinders must provide reliable extension and load control. Custom telescopic hydraulic cylinders help cranes achieve efficient operation while maintaining structural stability.
Drilling and Construction Equipment
In drilling rigs and foundation machinery, telescopic cylinders are used for positioning, lifting, and extending mechanisms that require high durability and accurate movement.
Looking for a reliable custom telescopic hydraulic cylinder manufacturer for excavator applications? Jiaheng Hydraulic provides OEM solutions with flexible design options, strict quality control, and professional manufacturing support.
Contact us today to discuss your hydraulic cylinder requirements.
Professional Hydraulic Cylinder Manufacturing Experience
Jiaheng focuses on hydraulic cylinder design and production for construction machinery, mobile cranes, and customized industrial applications.
Customized Solutions for Different Equipment
Whether you need a hydraulic cylinder for an excavator, crane, or special machinery, our engineering team can provide solutions based on your application requirements.
Strict Quality Control
From raw material selection to final testing, every production stage is controlled to ensure reliable hydraulic performance.
OEM Service for Global Customers
We support customized production, technical communication, and manufacturing cooperation for international equipment manufacturers and distributors.
