Open TBM Shield Cylinder

The open tbm shield cylinder is a cutting-edge hydraulic component designed to enhance the safety and efficiency of tunnel boring operations. This specialized cylinder plays a crucial role in supporting the shield of a tunnel boring machine (tbm), ensuring stability and protection during excavation. In this informative article, we will explore the key characteristics, usage methods, and maintenance guidelines for the open tbm shield cylinder.

The open tbm shield cylinder is a vital component that enhances the safety and efficiency of tunnel boring operations. With its shield stability, precise control, durability, and safety features, this cylinder ensures the secure positioning and protection of the tbm shield during excavation. By following the recommended usage methods and adhering to regular maintenance practices, the open tbm shield cylinder will continue to deliver outstanding performance, contributing to the success of tunneling projects. Experience the safety and efficiency of the open tbm shield cylinder, revolutionizing tunnel boring operations with advanced technology and reliability.

Open TBM Shield Cylinder Key Characteristics:

• Shield Stability: The open TBM shield cylinder is engineered to provide exceptional stability to the tbm shield. Its robust construction and precise engineering ensure that the shield remains securely in place during excavation, minimizing the risk of ground collapse and ensuring the safety of the tunneling crew.
• Precise Control and Positioning: Equipped with advanced hydraulic control systems, this cylinder offers precise control over the positioning of the TBM shield. This allows operators to adjust the shield’s orientation and alignment to match the specific ground conditions, ensuring accurate and efficient excavation.
• Durability and Reliability: Built with high-quality materials, the open TBM shield cylinder is designed to withstand the demanding conditions encountered during tunneling operations. It can withstand heavy loads, vibrations, and shocks, providing long-term durability, minimizing downtime, and reducing maintenance costs.
• Safety Features: The open TBM shield cylinder incorporates safety features such as pressure relief valves and emergency stop mechanisms. These features help prevent excessive pressure buildup and ensure the safety of the tunneling crew, minimizing the risk of accidents or equipment damage.

Open TBM Shield Cylinder Parameter:

Product Name	Open Tunnel Boring Machine Shield Cylinder
Features:	Stabilize the cutter head/prevent the jamming caused by convergence
Bore diameter:	130mm～360mm
Rod diameter:	80mm～220mm Stroke100mm～420mm
Pressure:	up to 25MPa Special requirements up to 35Mpa
Applications:	Open Tunnel Boring Machine

Open TBM Cylinder Application:

Usage Method Of Open TBM Shield Cylinder:

• Cylinder Installation:  Install the open TBM shield cylinder according to the manufacturer’s instructions. Ensure proper alignment and secure attachment to the TBM shield structure using suitable mounting brackets or accessories.
• Hydraulic System Integration: Connect the cylinder to the TBM’s hydraulic system using compatible hoses and fittings. Ensure all connections are secure, leak-free, and adequately tightened for optimal hydraulic performance.
• Shield Positioning:  Familiarize yourself with the controls specific to the open TBM shield cylinder. Use these controls to adjust the shield’s position, alignment, and angle. Follow the TBM manufacturer’s guidelines and recommendations for optimal shield positioning based on the ground conditions.
• Safety Precautions:  Adhere to all safety protocols and guidelines provided by the TBM manufacturer. Ensure operators are trained in the safe operation of the tbm and the open tbm shield cylinder. Regularly inspect safety mechanisms and perform maintenance as recommended to ensure their proper functioning.

How To Bleed Single Acting Hydraulic Cylinder?

Bleeding a single-acting hydraulic cylinder is a straightforward process that helps remove air from the system and ensures proper functioning. Here’s a step-by-step guide to help you bleed a single-acting hydraulic cylinder:

1. Safety First: Before you begin, ensure the hydraulic system is depressurized and the machine is turned off. Wear appropriate personal protective equipment (PPE), such as gloves and safety glasses.
2. Identify Bleed Point: Locate the bleed point on the hydraulic cylinder. This is usually a small screw or valve located on the cylinder body or near the hydraulic connections.
3. Prepare Collection Container: Place a suitable container beneath the bleed point to catch any hydraulic fluid that may be released during the bleeding process.
4. Open Bleed Point: Using an appropriate wrench or tool, carefully open the bleed point by turning it counterclockwise. This allows air and any trapped fluid to escape.
5. Extend the Cylinder: Activate the hydraulic system to extend the cylinder fully. This can be done by operating the control valve or lever that controls the cylinder’s movement. By extending the cylinder, you allow air to rise to the highest point and escape through the bleed point.
6. Observe Fluid Flow: As the cylinder extends, you may notice air bubbles escaping through the bleed point. Allow the fluid to flow until you see a consistent and steady stream without any air bubbles. This indicates that the air has been purged from the cylinder.
7. Close Bleed Point: Once the fluid flows smoothly without any air bubbles, close the bleed point by turning it clockwise. Take care not to overtighten it.
8. Retract the Cylinder: Operate the control valve or lever in the opposite direction to retract the cylinder fully. This helps expel any remaining air from the system.
9. Repeat if Necessary: In some cases, stubborn air pockets may require multiple bleeding cycles. If you still notice air in the system or experience poor cylinder performance, repeat the bleeding process until the system is free of air.
10. Check Hydraulic Fluid Level: After bleeding the cylinder, check the hydraulic fluid level in the reservoir. If necessary, add the recommended hydraulic fluid to maintain the proper level. Refer to the machine’s manual for the correct type and specifications of hydraulic fluid.
11. Test Cylinder Operation: With the cylinder bled and fluid level checked, test the hydraulic system by operating the control valve or lever that controls the cylinder’s movement. Observe the cylinder’s performance to ensure it operates smoothly and provides the desired force.

Capability & Capacity Of Factory:

(1) Assembly

We have a first-class independent research and development assembly platform. The hydraulic cylinder production workshop has four semi-automatic lifting cylinder assembly lines and one automatic tilt cylinder assembly line, with a designed annual production capacity of 1 million pieces. The special cylinder workshop is equipped with various specifications of a semi-automatic cleaning assembly system with a designed annual production capacity of 200,000 and equipped with famous CNC machining equipment, a machining center, a high-precision cylinder processing special equipment, a robot welding machine, an automatic cleaning machine, automatic cylinder assembly machine, and automatic painting production line. Existing critical equipment of more than 300 sets (sets). The optimal allocation and efficient use of equipment resources ensure the accuracy requirements of products and meet the high-quality needs of products.

(2) Machining

The machining shop is equipped with a customized inclined rail turning center, machining center, high-speed honing machine, welding robot, and other related equipment, which can handle the processing of cylinder tubes with a maximum inner diameter of 400mm and a maximum length of 6 meters.

(3) Welding

(4) Painting & coating

With small and medium-sized cylinder automatic water-based paint coating lines, to achieve automatic robot loading and unloading and automatic spraying, the design capacity of 4000 pieces per shift;
We also have a semi-automatic paint production line for large cylinders powered by a power chain, with 60 cases per shift design capacity.

(5) Testing

We have first-class inspection facilities and test beds to ensure that the performance of the cylinder meets the requirements.

 

 

We are one of the best hydraulic cylinder manufacturers. We can offer comprehensive hydraulic cylinders. We also provide corresponding agricultural gearboxes. We have exported our products to clients worldwide and earned a good reputation because of our superior product quality and after-sales service. We welcome customers at home and abroad to contact us to negotiate business, exchange information, and cooperate with us!