Lingman Machinery Technology (changzhou) Co., Ltd.

1. Introduction of TH hollow rotary hydraulic cylinder

Lightweight, largethroughhole rotary cylinder, with throughholes, can process long shaft parts. The builtin check valve selflocking mechanism can prevent piping damage and pressure source loss, ensuring stable clamping of the processed parts. Safe and reliable. High speed, long life, internal parts are all imported original parts. Can be customized according to customer requirements.

Specification of TH hollow rotary hydraulic cylinder

Hollow Rotary Hydraulic Cylinders Overview And Significance

Hollow rotary hydraulic cylinders are widely used in industries such as manufacturing, automotive, aerospace, and metalworking. These cylinders are essential in applications where mechanical power is required for rotational force due to their high torque, precise control, and durability. The hollow shaft design allows these cylinders to accommodate additional features such as electrical wires, cooling fluids, or other utilities passing through the center of the cylinder. This capability is unique to these cylinders, enhancing their versatility and functionality.

Key Features

• Preciseness and Stability: Hollow rotary hydraulic cylinders are designed to provide high accuracy and stability during operation. The design minimizes deflection and vibration under load, ensuring maximum repeatable performance.

• Hollow Shaft Design for Space Savings: The hollow shaft design allows for the accommodation of integrated transmissions or the passage of media through the cylinder, reducing the overall footprint of machinery and making it suitable for confined spaces.

• Durable Build: Crafted from top-of-the-line materials, these cylinders are designed to withstand harsh industrial conditions. Their construction ensures longevity and reduces maintenance requirements and downtime.

• Versatility: Hollow rotary hydraulic cylinders are diverse and can be used for various purposes, offering the correct turning movement in automation systems, robotic arms, or CNC machines that require rotational force and high precision.

Industry Applications

Hollow rotary hydraulic cylinders are versatile and designed to cater to every industry:

1. Manufacturing Industry

These cylinders play a critical role in manufacturing scenarios utilizing automated processes that require controlled rotary movements, such as assembly lines, robotic arms, or CNC machines. They provide the capability to rotate accurately and reliably under heavy loads, improving efficiency and productivity in the manufacturing process.

2. Automotive Industry

Hollow rotary hydraulic cylinders are extensively used in the automotive industry for essential applications such as:

• Testing Equipment: These cylinders are used in automotive testing facilities, such as dynamometers, to replicate real-world driving conditions. Their ability to produce precise and consistent rotational force is indispensable for accurately testing the performance of engines, transmissions, and other components.

• Assembly Operations: Employed in vehicle assembly, these cylinders provide controlled rotation for tasks such as installing wheels, steering mechanisms, and engine parts. The hollow shaft design allows for the integration of additional tools or sensors, improving the accuracy and efficiency of the assembly process.

• Production Machinery: These cylinders are used in production machinery for forming, shaping, and machining automotive parts. Their high torque output is crucial for processing the hard materials used in automotive components, while the hollow interior allows for easy parts feeding via various production processes.

3. Aerospace Industry

In the aerospace industry, precision and material strength are critical. Hollow rotary hydraulic cylinders meet these requirements in several critical applications:

• Aircraft Testing Systems: These cylinders are used in systems that test the performance of aircraft components under simulated flight conditions. The hollow shaft design allows sensors and wiring to pass through, enabling precise data measurements.

• Satellite Manufacturing: These cylinders assist in the accurate placement and rotation of delicate components during satellite production. The hollow shaft design is ideal for running required cables and fluids, ensuring a precise manufacturing process.

• Landing Gear Systems: These cylinders are used in the deployment and retraction of aircraft landing gear, providing a high torque-to-size ratio and accommodating hydraulic lines or sensors through the hollow shaft.

4. Metalworking Industry

The robust design and powerful gearing of hollow rotary hydraulic cylinders make them ideal for metalworking applications:

• Metal Cutting and Forming Machines: These cylinders are used in machines requiring accurate cutting and shaping through rotational motion. The hollow shaft allows for the passage of cooling fluids or other media, enhancing efficiency.

• Welding Equipment: These cylinders rotate to position workpieces or welding tools, offering high torque output and consistent performance. The hollow shaft design accommodates wiring for automation systems in welding applications.

• Press Machines: Hollow rotary hydraulic cylinders are also used in press machines for manufacturing processes such as stamping, forging, and molding metal parts. Their ability to deliver high force while maintaining precision ensures the quality and integrity of the metal products being formed.

5. Energy Sector

Hollow rotary hydraulic cylinders find applications in the energy sector, particularly in renewable energy:

• Wind Turbine Systems: These cylinders are used in wind turbine systems to manage blade pitch, improving energy efficiency. The hollow shaft design allows for the routing of control cables and hydraulic lines, optimizing turbine layout.

• Hydroelectric Plants: These cylinders regulate water flow and turbine positioning in hydroelectric plants. Their high torque output is essential for handling large forces, while the hollow design allows for the integration of additional control systems.

4. Installation and Maintenance

4.1 Installation Guidelines

Proper installation and continuous care are essential to ensure optimal performance of hollow rotary hydraulic cylinders. The following guidelines should be followed during installation:

• Pre-Installation Preparation: Inspect the cylinder for any damage, such as dents or leaks, sustained during transit. Ensure all parts, including seals, mounting gear, and connectors, are in good condition. The installation space should be clean and free of dirt, dust, debris, or moisture.

• Mounting the Cylinder: Securely mount the cylinder to the machinery using one of three configurations (flange, foot, or clevis). Proper alignment is crucial to avoid non-coaxial loads. Connect the hydraulic lines to the cylinder’s ports, ensuring leak-proof connections.

• Initial Testing: Bleed the hydraulic system to remove trapped air, perform test cycles, and monitor the system response for smooth operation, correct pressures, and no leaks.

4.2 Maintenance Procedures

Regular maintenance is vital for the continued performance of hollow rotary hydraulic cylinders:

• Routine Inspections: Visually inspect the cylinder for damage, such as scratches or leaks, and monitor performance for variations in speed, force production, or smoothness.

• Lubrication: Lubricate seals and bearings according to manufacturer specifications to prevent friction and wear, extending the cylinder's lifecycle.

• Hydraulic Fluid Service: Inspect and replace hydraulic fluid regularly, as contaminated fluid can deteriorate internal components.

• Seal Replacement: Replace worn seals as needed, following manufacturer instructions. Ensure the cylinder bore and piston rod are damage-free before installing new seals.

• Hydraulic System Checks: Regularly monitor system pressure and maintain cleanliness to prevent wear on internal components.

4.3 Common Issues and Troubleshooting

Even with proper installation and maintenance, issues may arise. Here are some common problems and their solutions:

• Cylinder Not Moving: This could be due to insufficient hydraulic pressure, air in the system, or a blockage in the hydraulic lines. Check hydraulic fluid levels, bleed the system, and inspect for blockages.

• Erratic Movement: Erratic movement may be caused by worn seals, air in the system, or contaminated fluid. Bleed the system, replace the fluid, and inspect seals for wear.

• Hydraulic Fluid Leaks: Leaks are typically caused by worn seals, loose fittings, or cracks in the cylinder body. Tighten fittings, replace seals, and inspect the cylinder body for damage.

• Noisy Operation: Noise can result from air in the system, insufficient lubrication, or worn components. Bleed the system, ensure proper lubrication, and replace worn parts.

5. The Main Benefits of Our Hydraulic Cylinders

5.1 High Precision & Reliability

Our hollow rotary hydraulic cylinders are designed with tight tolerances to ensure consistent performance and minimal deviation, even under heavy loads. This precision is essential in industries like aerospace and automotive, where even the slightest errors can have significant consequences.

5.2 Hollow Shaft Design for Space Efficiency

The hollow shaft design allows for the integration of additional components within the same footprint, improving system efficiency and reducing the overall machinery footprint.

5.3 Durability and Long Service Life

Our cylinders are built with corrosion-resistant materials and wear-resistant coatings, ensuring they are durable and require less maintenance.

5.4 Customization Options

We offer a wide range of customization options, including bore sizes, stroke lengths, and specialized seals and coatings, allowing our cylinders to meet specific application requirements.

5.5 Competitive Pricing and Cost Efficiency

Our cylinders are competitively priced, offering high performance, durability, and customizability, resulting in a lower total cost of ownership.

5.6 Superior Customer Support and Service

We provide expert consultation, after-sales support, and industry-leading warranty terms, ensuring our customers receive the best service possible.