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China Hot selling Tnb150 Tnb190 Tnb310 Hydraulic Breaker Spare Parts Cylinder Front and Back Head Assy manufacturer

Product Description

TNB150 TNB190 TNB310 Hydraulic Breaker Spare Parts Cylinder Front and Back Head Assy

Product Description
Quality first is our aim. We have progressive technological processes, world-class production equipment, perfect management system and the most advanced technical team.
Strict quality control is performed in every procedure from product design, material sourcing, processing and testing to packing.

Suitable Brand
Volvo, CZPT and other brand excavators and Loaders are available.

Brand Name If the following models are not your type,tell us your hydraulic

breaker model name, we have more for you.

SOO SAN SB30,SB35,SB40,SB43,SB45,SB50,SB60,SB70,SB81,SB100,SB121,SB130,SB151,etc
FURU KAWA HB10G,HB15G,HB20G,HB30G,HB40G,HB50G
F1,F2,F3,F4,F5,F6,F9,F12,F19,F22,F27,F35,F45etc
ATLAS
COP CO
MB700,MB750,MB800,MB1000,MB1200,MB1500,MB1600,MB1700,
HB2000,HB2200,HB2500,HB3000,HB3600,HB4200,etc
MON TABERT BRH125,BRH250,BRH501,BRH625,SC12,BRV32,BRV43,etc
MSB XIHU (WEST LAKE) DIS.20,XIHU (WEST LAKE) DIS.180,XIHU (WEST LAKE) DIS.200,XIHU (WEST LAKE) DIS.210,XIHU (WEST LAKE) DIS.300,MS550,MS600,MS700,etc
K RUP HM900,HM901,HM902,HM950,HM960,etc
RAMMER S23,S24,S25,S26,E63,E64,E66,E68,G90,G100,etc
INDECO MES2500,MES3000,MES3500,MES4000,etc
TOKU/TO YO/
OKADA/NPK
TNB 5E6E7E8E10E,TNB150151,TNB310,THBB301,THBB401,THBB801,
THBB1400,THBB2000/OUB310,OUB312,OUB316,OUB318,UB11/H7X,H10X,
H10XB,H12X,H16X,H20X,E210,E212,etc
DAEMO/MKB B140,B210,B230,B300,B360,B450/MKB1400,MKB1500,MKB1600,MKB1700,etc
EVERDIGM RHB305,RHB313,RHB320,RHB321,RHB323,RHB324,RHB325,RHB326,etc
BLT/EDT BLT80-1,BLT80-2,BLT81,BLT100/EDT2000,EDT2200,EDT3000,EDT3200,EDT3500,etc

Packaging & Shipping
Package: Standard packing or as customer’s request
Delivery: 1. Delivery time: Usually 10-30ays after down. 
                 2. We can arrange CZPT or air transportation according to your request from                               any port of China.

Our Advantages
1.Heating processing technology: Quench and Temper
2. Surface Treatment: Cold/Hot Zn Plating, Blackening Treatment(Salt Spray Test 48-96 hours), Ni Plating,Cr Plating, Spraying Undercoat, Anti-Rust Paint, Surface Paint, Plastic Paint. Coated Anti-Rust Water,Anti-Rust Oil, etc.
3. Adaptive quartering hammer: SB HB GB TOKU MKB TOY NPK OKADA DMB MSB RHB SG HM BLT MB GT
4. Dimension Inspection: Calipers, Height Gauge, Micrometer Calipers, Inside Caliper Gauge, Angle and R Gauge, 3 coordinates Measuring instrument.


Company profile

HangZhou Zhongye Machinery Manufacture Co.,Ltd. is located in HangZhou City, the ancient capital of Yanzhao, at the junction of the 4 provinces of ZheJiang , ZheJiang ZheJiang and ZheJiang . It is located in the Mazhuang Industrial Park of National Highway 107,adjacent to the ZheJiang -HangZhou Railway, Qinglan Expressway and HangZhou Airport. Here the terrain is superior, the environment is beautiful and the transportation is convenient. We specialize in the production of various types of breaker chisels, brackets, bushings and other spare parts.
We have complete production and testing equipment. The products refer to international standards and adopt advanced technology. To ensure the high quality and durability of the chisel, we select material exquisitely. We use special alloy steel and make the production reasonable and advanced with unique heat treatment (segmented heat treatment). Our products have reached the international level.
Our company is committed to the development, production, sales and related technical services of a series of products, and has cooperated with many domestic and foreign CZPT breaker manufacturers for years. The products are exported to many countries and regions such as the Middle East, Europe and the United States. We have many distributors in Chine, and provide high-quality parts for many domestic breakers.
Our company adheres to the goal of “Be stronger, bigger, better, and last longer”, with the spirit of “Concentration, Innovation Customer-first”. in line with “High quality, Efficient management, Compliance with promises”. We will, as always, wholeheartedly provide new and old customers with high-quality and economical products and satisfactory services!

FAQ
Q1. How many days for the delivery time ?
It is about 10-15 working days after the order confirmation.CZPT season 30 days.

Q2. What kind of payments you accept?
Now we accept T/T, L/C or Western Union, other terms also could be negotiated.

Q3. Are you able to manufacturing products according to customer’s design?
Sure, we have made many special orders from oversea for 10 years. We accept OEM,ODM and have our own brand.

Q4. Are you sure that your product will fit my hydraulic breaker?
We have most chisels drawing in market.Show your model and i can find for you.

Q5. How about the packing of the goods?
Standard export package, Individually packed then into wood cases or pallet, or as customers’ demands.

we also  offer other hydraulic breaker spare parts

After-sales Service: Online
Warranty: 12 Months
Type: Hydraulic Breaker Spare Part
Application: Excavator
Certification: CE, ISO9001: 2000
Condition: New
Customization:
Available

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hydraulic cylinder

Can hydraulic cylinders be retrofitted onto existing equipment for improved functionality?

Yes, hydraulic cylinders can be retrofitted onto existing equipment to enhance functionality and performance. Retrofitting hydraulic cylinders onto existing machinery or equipment offers several benefits, including increased power, improved control, enhanced precision, and versatility. Here’s a detailed explanation of how hydraulic cylinders can be retrofitted onto existing equipment for improved functionality:

1. Increased Power:

– Retrofitting hydraulic cylinders allows for the addition of hydraulic power to the existing equipment. By integrating hydraulic cylinders, the equipment can generate higher forces and handle heavier loads. This increased power enables the equipment to perform tasks that were previously challenging or impossible. For example, a retrofit hydraulic cylinder on a crane can enhance its lifting capacity and enable it to handle heavier loads more efficiently.

2. Improved Control:

– Hydraulic cylinders provide precise control over the motion and positioning of equipment. By retrofitting hydraulic cylinders, operators gain better control over the speed, force, and direction of movement. The addition of hydraulic control valves and a hydraulic power unit allows for fine-tuning of the equipment’s operation. Improved control facilitates safer and more efficient operation, reducing the risk of damage and improving overall productivity.

3. Enhanced Precision:

– Retrofitting hydraulic cylinders onto existing equipment can significantly improve precision and accuracy. Hydraulic systems offer precise control over movement, enabling smooth and controlled motion. This enhanced precision is beneficial in applications where precise positioning or repetitive movements are required. For instance, retrofitting hydraulic cylinders onto a robotic arm can enhance its accuracy and repeatability, making it more suitable for tasks that demand high precision.

4. Versatility and Adaptability:

– Retrofitting hydraulic cylinders can increase the versatility and adaptability of existing equipment. Hydraulic systems can be easily integrated with various types of machinery, allowing for the utilization of hydraulic power across different applications. The modular nature of hydraulic components facilitates the retrofitting process, enabling the equipment to perform a broader range of tasks. This versatility is particularly advantageous in industries where equipment needs to adapt to changing operational requirements.

5. Retrofit Kits and Customization:

– Manufacturers often provide retrofit kits that include all the necessary components for integrating hydraulic cylinders onto existing equipment. These kits typically consist of hydraulic cylinders, mounting brackets, hoses, fittings, control valves, and other required accessories. Retrofit kits simplify the retrofitting process and ensure compatibility between the hydraulic components and the existing equipment. Additionally, manufacturers can offer customization options to tailor the retrofit solution to specific equipment and application needs.

6. Cost-Effective Solution:

– Retrofitting hydraulic cylinders onto existing equipment can be a cost-effective solution compared to purchasing new machinery. By leveraging the existing equipment’s structural framework and mechanical components, the overall cost of upgrading can be reduced. Retrofitting also minimizes downtime since the equipment does not need to be completely replaced. Furthermore, the improved functionality and performance resulting from the retrofit can lead to increased productivity and cost savings in the long run.

7. Professional Installation and Expertise:

– Retrofitting hydraulic cylinders onto existing equipment often requires professional installation and expertise. Working with experienced hydraulic system integrators or manufacturers ensures proper installation, compatibility, and optimal performance of the retrofit solution. These professionals can assess the existing equipment, recommend suitable hydraulic components, and carry out the retrofitting process efficiently. Their knowledge and expertise contribute to the successful integration of hydraulic cylinders and the overall improvement of equipment functionality.

In summary, hydraulic cylinders can indeed be retrofitted onto existing equipment to improve functionality. This retrofitting process offers advantages such as increased power, improved control, enhanced precision, versatility, cost-effectiveness, and access to retrofit kits and customization options. By retrofitting hydraulic cylinders, existing equipment can be upgraded to meet evolving operational needs, extend its lifespan, and enhance overall performance.

hydraulic cylinder

Integration of Hydraulic Cylinders with Equipment Requiring Rapid and Dynamic Movements

Hydraulic cylinders can indeed be integrated with equipment that requires rapid and dynamic movements. While hydraulic systems are generally known for their ability to provide high force and precise control, they can also be designed and optimized for applications that demand fast and dynamic motion. Let’s explore how hydraulic cylinders can be integrated with such equipment:

  1. High-Speed Hydraulic Systems: Hydraulic cylinders can be part of high-speed hydraulic systems designed specifically for rapid and dynamic movements. These systems incorporate features such as high-flow valves, optimized hydraulic circuitry, and responsive control systems. By carefully engineering the system components and hydraulic parameters, it is possible to achieve the desired speed and responsiveness, enabling the equipment to perform rapid movements.
  2. Valve Control: The control of hydraulic cylinders plays a crucial role in achieving rapid and dynamic movements. Proportional or servo valves can be used to precisely control the flow of hydraulic fluid into and out of the cylinder. These valves offer fast response times and precise flow control, allowing for rapid acceleration and deceleration of the cylinder’s piston. By adjusting the valve settings and optimizing the control algorithms, equipment can be designed to execute dynamic movements with high speed and accuracy.
  3. Optimized Cylinder Design: The design of hydraulic cylinders can be optimized to facilitate rapid and dynamic movements. Lightweight materials, such as aluminum alloys or composite materials, can be used to reduce the moving mass of the cylinder, enabling faster acceleration and deceleration. Additionally, the cylinder’s internal components, such as the piston and seals, can be designed for low friction to minimize energy losses and enhance responsiveness. These design optimizations contribute to the overall speed and dynamic performance of the equipment.
  4. Accumulator Integration: Hydraulic accumulators can be integrated into the system to enhance the dynamic capabilities of hydraulic cylinders. Accumulators store pressurized hydraulic fluid, which can be rapidly released to supplement the flow from the pump during high-demand situations. This stored energy can provide an extra boost of power, allowing for faster and more dynamic movements. By strategically sizing and configuring the accumulator, the system can be optimized for the specific rapid and dynamic requirements of the equipment.
  5. System Feedback and Control: To achieve precise and dynamic movements, hydraulic systems can incorporate feedback sensors and advanced control algorithms. Position sensors, such as linear potentiometers or magnetostrictive sensors, provide real-time position feedback of the hydraulic cylinder. This information can be used in closed-loop control systems to maintain precise positioning and execute rapid movements. Advanced control algorithms can optimize the control signals sent to the valves, ensuring smooth and dynamic motion while minimizing overshooting or oscillations.

In summary, hydraulic cylinders can be integrated with equipment that requires rapid and dynamic movements by utilizing high-speed hydraulic systems, employing responsive valve control, optimizing cylinder design, integrating accumulators, and incorporating feedback sensors and advanced control algorithms. These measures enable hydraulic systems to deliver the speed, responsiveness, and precision necessary for equipment operating in dynamic environments. By leveraging the capabilities of hydraulic cylinders, manufacturers can design and integrate systems that meet the requirements of applications demanding rapid and dynamic movements.

hydraulic cylinder

How do hydraulic cylinders handle variations in load, pressure, and speed?

Hydraulic cylinders are designed to handle variations in load, pressure, and speed effectively. They incorporate features and components that allow them to adapt to changing operating conditions and maintain optimal performance. Here’s a detailed explanation of how hydraulic cylinders handle variations in load, pressure, and speed:

Variations in Load:

– Hydraulic cylinders are capable of handling variations in load by adjusting the force they exert. The force output of a hydraulic cylinder is determined by the hydraulic pressure and the surface area of the piston. When the load increases, the pressure in the hydraulic system can be adjusted to generate a higher force. This adjustment can be achieved by regulating the flow of hydraulic fluid into the cylinder using control valves. By controlling the pressure and flow, hydraulic cylinders can adapt to different load requirements, ensuring that the force applied is sufficient to handle the load while preventing excessive force that could cause damage.

Variations in Pressure:

– Hydraulic cylinders are designed to handle variations in pressure within the hydraulic system. They are equipped with seals and other components that can withstand high-pressure conditions. When the pressure within the hydraulic system fluctuates, the hydraulic cylinder adjusts accordingly to maintain its performance. The seals prevent fluid leakage and ensure that the hydraulic pressure is effectively transmitted to the piston, allowing the cylinder to generate the required force. Additionally, hydraulic systems often incorporate pressure relief valves and other safety mechanisms to protect the cylinder and the entire system from overpressure conditions.

Variations in Speed:

– Hydraulic cylinders can handle variations in speed through the control of hydraulic fluid flow. The speed of a hydraulic cylinder’s extension or retraction is determined by the rate at which hydraulic fluid enters or exits the cylinder. By adjusting the flow rate using flow control valves, the speed of the cylinder’s movement can be regulated. This allows for precise control over the speed, enabling operators to adapt to varying speed requirements based on the specific task or load. Furthermore, hydraulic systems can incorporate flow control valves with adjustable orifice sizes to fine-tune the speed of the cylinder’s movement.

Load-Sensing Technology:

– Advanced hydraulic systems may incorporate load-sensing technology to further enhance the ability of hydraulic cylinders to handle variations in load, pressure, and speed. Load-sensing systems monitor the load demand and adjust the hydraulic pressure and flow accordingly to meet that demand. This technology ensures that the hydraulic cylinder provides the necessary force while optimizing energy efficiency. Load-sensing systems are particularly beneficial in applications where the load requirements can vary significantly, allowing hydraulic cylinders to adapt in real-time and maintain precise control over force and speed.

Accumulators:

– Hydraulic systems can also utilize accumulators to assist in handling variations in load, pressure, and speed. Accumulators store hydraulic fluid under pressure, which can be released when needed to supplement the flow and pressure in the system. When there are sudden increases in load or pressure demands, accumulators can provide additional fluid to the hydraulic cylinder, ensuring smooth operation and preventing pressure drops. Similarly, accumulators can assist in maintaining consistent speed by compensating for fluctuations in flow rate. They act as a supplemental energy source, helping hydraulic cylinders respond effectively to variations in operating conditions.

In summary, hydraulic cylinders handle variations in load, pressure, and speed through various mechanisms and components. They can adjust the force output to accommodate different load requirements by regulating hydraulic pressure. The seals and components within hydraulic cylinders allow them to withstand variations in pressure within the hydraulic system. By controlling the flow of hydraulic fluid, hydraulic cylinders can regulate the speed of their movement. Advanced technologies such as load-sensing systems and the use of accumulators further enhance the adaptability of hydraulic cylinders to changing operating conditions. These features and mechanisms enable hydraulic cylinders to maintain optimal performance and provide reliable force and motion control in a wide range of applications.

China Hot selling Tnb150 Tnb190 Tnb310 Hydraulic Breaker Spare Parts Cylinder Front and Back Head Assy   manufacturer China Hot selling Tnb150 Tnb190 Tnb310 Hydraulic Breaker Spare Parts Cylinder Front and Back Head Assy   manufacturer
editor by CX 2023-09-14

China China OEM Factory Manufacturer for High Quality Hydraulic Breaker Main Body Front Head Back Head Cylinder Assy for Rock Breaker Hb20g Hb30g Sb70 Sb81 Sb121 custom hydraulic cylinders

Product Description

Company Introduction:

Company license,certificates,exhibition photos and customers feedbacks:

Production process:

Popular models for world market:

Breaker Parameter:

 Products photos:

product-list-1.html product-list-1.html

WARRANTY: ONE YEAR

Welcome to inquiry and please contact us freely!
contact-info.html

 

US $400-10,000
/ Set
|
1 Set

(Min. Order)

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After-sales Service: with Warranty
Warranty: One Year
Type: Hydraulic Breaker Spare Parts
Application: Excavator
Condition: New
Material: Special Alloy Steel

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Samples:
US$ 500/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:
US $400-10,000
/ Set
|
1 Set

(Min. Order)

###

After-sales Service: with Warranty
Warranty: One Year
Type: Hydraulic Breaker Spare Parts
Application: Excavator
Condition: New
Material: Special Alloy Steel

###

Samples:
US$ 500/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

Types of Hydraulic Cylinders

Besides being used for construction and manufacturing machinery, hydraulic cylinders are also used in elevators and vehicles. In fact, the use of hydraulic cylinders has become increasingly common in the recent years.hydraulic cylinders

Single-acting cylinders

Unlike double-acting hydraulic cylinders, single-acting hydraulic cylinders are less complex and are easy to install and maintain. They are also more efficient and compact. They can also be used in applications that require only one direction of motion. They are also useful in applications where space is limited, such as in a small industrial or commercial setup.
Single-acting hydraulic cylinders are usually used for simple lifting and positioning jobs. They also are useful for clamping and diagnostic instrumentation. They are cheap to manufacture and are very easy to install. They are also easy to maintain, which makes them ideal for rugged equipment.
Single-acting hydraulic cylinders are used in a variety of applications, including pumps, internal combustion engines, diagnostic instrumentation, and positioning. They have advantages and disadvantages, but they are an ideal solution for many applications.
Single-acting cylinders typically have one port, and a spring is used to force the piston into its position. The spring then retracts the piston into its previous position. This process can become irregular over time. The spring also requires venting, and can allow foreign particles to enter the cylinder.
A single-acting cylinder can also be retracted by gravity. This is called a spring return cylinder. Some single-acting cylinders have a second piston to forcefully retract the piston into its original position. This can be a problematic operation. The result can be uneven strokes.
Generally, single-acting hydraulic cylinders are not as powerful as double-acting hydraulic cylinders. They require less air, which can boost efficiency. However, their size can be a drawback. They are also susceptible to particles entering the cylinder, which can cause slow performance decline and malfunctions.
Single-acting hydraulic cylinders are ideal for applications with space constraints. They are also useful for compact operations and light assembly. They also save on piping costs. They are suitable for industrial applications such as tow trucks and bulldozers. They are also used in commercial and light industrial applications.
Single-acting hydraulic cylinders are simple to use, but may not provide the same power as double-acting cylinders. They may be less durable, and can also be subject to wear and tear, particularly in the area of retraction.

Welded body cylinders

Compared to other types of cylinders, welded body hydraulic cylinders are more compact in size and less prone to wear and tear. This type of cylinder is commonly used in construction and heavy equipment applications. These cylinders are designed for rugged environments. They are typically used in oil rigs, large off-road vehicles, and cranes.
They have less sharp corners and are easier to customize than other types of cylinders. They are also less expensive to manufacture. In addition, they can be manufactured in a variety of different materials. They are available in different lengths and thicknesses. They are also able to be fabricated using CNC turret punching and MIG welding methods. They are also available in different configurations.
They also have heavy-duty piston seals that provide consistent performance in heavy-load applications. They are also able to be used in applications with large temperature swings. They are also resistant to corrosion.
Welded body hydraulic cylinders are commonly used in mobile machinery applications. This makes them highly versatile and able to fit into tight spaces. They are also used in material handling and lift truck applications. These hydraulic cylinders are also more durable than tie rod type cylinders, which means they are less likely to fail.
They are also available in a variety of different metals. They are also available in rolled or pressed formed shapes. They can be used in press braking, shearing, and rolling structural steel. They are also available in oil and gas applications. They are also available in a variety of sizes from 3 to 169 inches in diameter.
These cylinders are designed to be durable and versatile. They are also designed to accommodate multi-stage adjustable cylinders. They are also able to accommodate custom provisions and are designed to fit into tighter machinery designs. They are also able to be manufactured in a variety of different materials, including high-strength low-alloy steel, 300 and 400 grade stainless steel, and Hastelloy(r) alloys.
They also have a smooth exterior surface. This means there are fewer sharp corners and places where moisture and dirt can settle. The cylinders also have a high level of precision tolerance, ensuring that they can handle high pressures without the metal flexing or sagging.hydraulic cylinders

Tandem cylinders

Often used in heavy industrial applications, tandem hydraulic cylinders are an important part of maintaining the functionality of heavy industrial machinery. Unlike a single cylinder, a tandem cylinder produces twice as much force. They are widely used in barges, cranes, elevated work platforms, fork lift trucks, and a number of other industrial applications.
Hydraulic cylinders are a form of power transfer system that operates on the same principle as pneumatic systems. This allows for infinitely variable force. They are also designed with locking safety mechanisms to prevent accidental damage. They are available in various materials for different applications.
Hydraulic cylinders work by using a piston rod that is thrust through an open gland at one end of the cylinder. This piston rod is then retracted when pressurised fluid bursts out of the cylinder. Its position is controlled by a seal and steel ring. These materials have been used in a variety of industries such as forestry, construction technology, and aircraft development.
Tandem hydraulic cylinders are also used in agricultural equipment such as crop sprayers. They are also used in heavy industrial machinery such as mining equipment.
These cylinders are manufactured by a number of companies including Eaton Corporation, Bosch Rexroth AG, and Caterpillar Inc. In addition, they can be customized to fit your specifications. They are also available in custom air cylinders with a minimum base material of 50,000 psi and a yield of 100,000.
There are a number of types of tandem cylinders. They can be differentiated into non-differential, double rod, balanced, cushioned, and spring return.
Cylinders in tandem typically have two chambers that are the same size. The first chamber is connected to the second cylinder by a port. The second chamber is operated by oil that is ejected from the first cylinder. This ensures that the next steering movements do not occur before the primary piston has completed its stroke.
Tandem hydraulic cylinders are easy to install and are designed to be extremely versatile. They are also extremely reliable. Pacoma is a leading provider of double acting cylinders that stand up to intense pressures. Its cylinders are designed with a solid construction and high-quality components.hydraulic cylinders

Cushioned cylinders

Typically, cushioned hydraulic cylinders are used in manufacturing equipment. They are used to reduce shock waves in the hydraulic circuit, to improve productivity and to reduce maintenance costs. They are also widely used in automobiles.
These cylinders feature a limiting device on the piston head. This device reduces excess load at the end of the outward stroke, which decreases the piston’s speed and vibration. This reduces the total working cycle time and increases productivity.
Cushioned hydraulic cylinders are made using a variety of techniques. Some are used to reduce shock waves and others are used to limit impact forces. However, these techniques do not allow for precise control over the amount of cushioning. This can lead to improper adjustment and reduced performance.
These techniques may require regular maintenance. Cushioning readjustment is often required when changing operating conditions. This can have a significant impact on a machine’s performance. For this reason, it is important to have regular preventive maintenance.
The cushioning of a cylinder is controlled through a series of valves. Each valve is located at a different point on the cylinder. This allows for an optimal cylinder adjustment that reduces oscillations and improves total working cycle time. It can also help to save energy and maintain a quiet working environment.
There are two basic types of cushioned hydraulic cylinders. The first is a spear-type design. This type of cushioning includes a sleeve or spear that enters and exits a concentric pocket. These cylinders require space in the end cap.
Another type of cushioned hydraulic cylinder is a welded cylinder. This cylinder has a piston rod ring that forms an annular restriction when the piston rod is axially moved into engagement with land. The area of the annular restriction increases as the piston moves closer to the head of the cylinder. When the piston moves in the opposite direction, the ring bypasses the annular restriction and the hydraulic fluid enters the cylinder.
When designing a hydraulic cylinder, it is important to consider the amount of cylinder pressure. This is a critical factor for selecting seals and tube wall thickness.
China China OEM Factory Manufacturer for High Quality Hydraulic Breaker Main Body Front Head Back Head Cylinder Assy for Rock Breaker Hb20g Hb30g Sb70 Sb81 Sb121     custom hydraulic cylindersChina China OEM Factory Manufacturer for High Quality Hydraulic Breaker Main Body Front Head Back Head Cylinder Assy for Rock Breaker Hb20g Hb30g Sb70 Sb81 Sb121     custom hydraulic cylinders
editor by czh 2022-11-28