China Best Sales Made in China SD73GF-2-156 CZPT Long Stroke Type Double Acting Hydraulic Cylinder vacuum pump ac system

Product Description

Made in China SD73GF-2-156 CHINAMFG Long Stroke Type Double Acting Hydraulic Cylinder

Product Features

 

ITEM FEATURES
Material Carbon Steel,Alloy Steel,Stainless Steel,27SiMn,SAE1045(45#),SAE1571(20#),16Mn(Q345B),Bronze Parts, etc.
Honed Tube 40-300mm, Cold Drawn, Heat Treatment, Honing, Rolling, Forging
Piston Rod 30-280mm, Ground & Polished, Plated Nickel or Hard Chrome or Ceramic
Seal Kit 1. Parker, Merkel, Hallite, NOK, Trelleborg, Kaden, China Made, etc.
2. Suitable for different working condition and requirements.
Technology Parker,Custom Hoist, Hyco,HYVA, Meiller

SAT,DAT

Mounting Type Pin-eye/Flange/Trunnion/Ball mount/Screw Thread, etc.
FC, FE, FEE, FSE,TPIN

 

Specification

 

Bore Size 40mm/Customize Request
Rod Size 25mm/Customize Request
Stroke 360mm/Customize Request
Working Medium Hydraulic Oil
Working Pressure 16-20MPa
Temperature Range -20°C to +100°C
Painting 1. High Quality Paint
2. Sandblasting, Primer Paint, Middle Paint, Finish paint
3. Color according to customer demands

 

Detailed Photos

 

 

Production Process

 

Warehouse Overview

 

 

 

 

Product Applications

Excavator is the most widely used construction machinery.
The shock load, harsh working environment, precision movement control require high standards on excavator cylinders.
ROCA guarantees excavator cylinder high performance of abrasion resistance and operation stability in any harsh condition has and gains recognition from every CHINAMFG customer with good quality at a lower cost.
Roca manufactures full-size excavator cylinders for mini excavators to largeexcavators.

 

Xihu (West Lake) Dis. Mining Group Co., Ltd. is a sizable multinational mining group performing most competitively in Chinese mining industry. CHINAMFG locate in the same CHINAMFG Mining output area, as the mining cylinder plant that grew up in the mining industry, we repair and reman a lot of mining haul truck cylinder. For a decade CHINAMFG has been focused on the production of various types of imported mine-used off-highway trucks & mining trucks.Our cylinders are mainly applied to world-famous brands such as Cat, Komatsu, Hitachi, BELAZ, and other famous international brands.
 

 

Single-Acting Telescopic Cylinders
This type of cylinder applies hydraulic pressure in 1 direction only and the return of the telescopic stages is by load such as a truck-trailer. 
ROCA single-acting multistage hoists are used widely throughout the transport sector, where they are used in tip trucks servicing agriculture, earthmoving, construction, food processing applications. 

 

Double-Acting Telescopic Cylinder
This type of cylinder is constructed with porting to both the annular and full bore area so hydraulic pressure can be applied to both surfaces and the cylinder stages can move in multiple directions without the need of an outside force, such as gravity.ROCA double-acting multi-stage cylinders are used in a wide variety of applications across many industries where space restrictions prohibit the use of a rod cylinder and require a compact telescopic cylinder design.
 

 

There are a wide range of products in the cylinder industry and having a specialist working on behalf of the customer is very important. With our years of experience, our business is positioned to provide prompt service, value and long lasting customer relationships.We work toward getting you better products and better service with competitive price.

 

Company Profile

HangZhou CHINAMFG is a comprehensive manufacturing enterprise engaged in hydraulic cylinders, excavator attachment, metal casting, hydraulic components with certification approval to meet custom or OEM requirement.

ROCA owned factory offers customer effective-cost product with quality assurance. With its professional and experienced R&D team, CHINAMFG Hydraulic devotes itself to research and develop to optimize products applied in construction, mining, waster management, forestry, agriculture, etc.

1. CHINAMFG Hydraulic parts factory focus on the high quality hydraulic cylinder. Our products are widely used in, refuse and recycling, construction, mining, material handling, agriculture, and every specific industry.

2. GS Machinery foundry produces industrial metal castings include Hydraulic piston pump parts, Valve parts, Construction, Mining Machinery Parts, and Auto Parts.

We accept OEM orders, and especially capable of developing and producing single/double-acting telescopic cylinder for dump truck/trailer, roll-off hoist equipment application.

For more than 10 years, CHINAMFG have provided end users with reliable high quality hydraulic products, which has saved user costs and maximized engineering benefits.

Roca R&D team works with customer to ensure their goal become reality, and their products are the best quality. With our in place best-in-class development group that offers unprecedented service and support.
 

FAQ

 

Q1.Do you have MOQ?
      Depending on different ideas, Can be negotiated. The larger the quantity is, the competitive the unit price will be.
Q2.Should the customer pay the delivery fee, How much is it?
       For the delivery fee, many samples are being requested to be sent, so we must get the delivery fee.
       If you tell me to use the appointed Express, you will give me your express account or you will pay according to the Express.
       If you do not request, I will choose a cheap one in China.
Q3.How about the after sale service?
      1) We will always keep the quality the same as the buyer’s samples and if there is something with the quality, we will make compensation for our customers.
      2) We will suggest our packing and take charge in our packing, we will keep the goods safe in the delivery.
      3) We will trace the goods from the production to selling, we will solve the problems in the selling for our customers.
Q4.When can I get a price?
      We usually quote within 24 hours after we get your inquiry.
Q5: Are you a trade company or manufacturer?
      We are a professional manufacturer with our factory.
 

Certification: RoHS, CE, ISO9001
Pressure: High Pressure
Work Temperature: High Temperature
Customization:
Available

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

hydraulic cylinder

How do hydraulic cylinders handle the challenges of precise positioning and control?

Hydraulic cylinders are designed to handle the challenges of precise positioning and control with a combination of engineering principles and advanced control systems. These challenges often arise in applications where accurate and controlled movements are required, such as in industrial automation, construction, and material handling. Here’s a detailed explanation of how hydraulic cylinders overcome these challenges:

1. Fluid Power Control:

– Hydraulic cylinders utilize fluid power control to achieve precise positioning and control. The hydraulic system consists of a hydraulic pump, control valves, and hydraulic fluid. By regulating the flow of hydraulic fluid into and out of the cylinder, operators can control the speed, direction, and force exerted by the cylinder. The fluid power control allows for smooth and accurate movements, enabling precise positioning of the hydraulic cylinder and the attached load.

2. Control Valves:

– Control valves play a crucial role in handling the challenges of precise positioning and control. These valves are responsible for directing the flow of hydraulic fluid within the system. They can be manually operated or electronically controlled. Control valves allow operators to adjust the flow rate of the hydraulic fluid, controlling the speed of the cylinder’s movement. By modulating the flow, operators can achieve fine control over the positioning of the hydraulic cylinder, enabling precise and accurate movements.

3. Proportional Control:

– Hydraulic cylinders can be equipped with proportional control systems, which offer enhanced precision in positioning and control. Proportional control systems utilize electronic feedback and control algorithms to precisely regulate the flow and pressure of the hydraulic fluid. These systems provide accurate and proportional control over the movement of the hydraulic cylinder, allowing for precise positioning at various points along its stroke length. Proportional control enhances the cylinder’s ability to handle complex tasks that require precise movements and control.

4. Position Feedback Sensors:

– To achieve precise positioning, hydraulic cylinders often incorporate position feedback sensors. These sensors provide real-time information about the position of the cylinder’s piston rod. Common types of position feedback sensors include potentiometers, linear variable differential transformers (LVDTs), and magnetostrictive sensors. By continuously monitoring the position, the feedback sensors enable closed-loop control, allowing for accurate positioning and control of the hydraulic cylinder. The feedback information is used to adjust the flow of hydraulic fluid to achieve the desired position accurately.

5. Servo Control Systems:

– Advanced hydraulic systems employ servo control systems to handle the challenges of precise positioning and control. Servo control systems combine electronic control, position feedback sensors, and proportional control valves to achieve high levels of accuracy and responsiveness. The servo control system continuously compares the desired position with the actual position of the hydraulic cylinder and adjusts the flow of hydraulic fluid to minimize any positional error. This closed-loop control mechanism enables the hydraulic cylinder to maintain precise positioning and control, even under varying loads or external disturbances.

6. Integrated Automation:

– Hydraulic cylinders can be integrated into automated systems to achieve precise positioning and control. In such setups, the hydraulic cylinders are controlled by programmable logic controllers (PLCs) or other automation controllers. These controllers receive input signals from various sensors and use pre-programmed logic to command the hydraulic cylinder’s movements. The integration of hydraulic cylinders into automated systems allows for precise and repeatable positioning and control, enabling complex sequences of movements to be executed with high accuracy.

7. Advanced Control Algorithms:

– Advancements in control algorithms have also contributed to the precise positioning and control of hydraulic cylinders. These algorithms, such as PID (Proportional-Integral-Derivative) control, adaptive control, and model-based control, enable sophisticated control strategies to be implemented. These algorithms consider factors such as load variations, system dynamics, and environmental conditions to optimize the control of hydraulic cylinders. By employing advanced control algorithms, hydraulic cylinders can compensate for disturbances and achieve precise positioning and control over a wide range of operating conditions.

In summary, hydraulic cylinders overcome the challenges of precise positioning and control through the use of fluid power control, control valves, proportional control, position feedback sensors, servo control systems, integrated automation, and advanced control algorithms. By combining these elements, hydraulic cylinders can achieve accurate and controlled movements, enabling precise positioning and control in various applications. These capabilities are essential for industries that require high precision and repeatability in their operations, such as industrial automation, robotics, and material handling.

hydraulic cylinder

Ensuring Stable Performance of Hydraulic Cylinders Under Fluctuating Loads

Hydraulic cylinders are designed to provide stable performance even under fluctuating loads. They achieve this through various mechanisms and features that allow for efficient load control and compensation. Let’s explore how hydraulic cylinders ensure stable performance under fluctuating loads:

  1. Piston Design: The piston inside the hydraulic cylinder plays a crucial role in load control. It is typically equipped with seals and rings that prevent leakage of hydraulic fluid and ensure effective transfer of force. The piston design may incorporate features such as stepped or tandem pistons, which provide enhanced load-bearing capabilities and improved stability by distributing the load across multiple surfaces.
  2. Cylinder Cushioning: Hydraulic cylinders often incorporate cushioning mechanisms to minimize the impact and shock caused by fluctuating loads. Cushioning can be achieved through various methods, such as adjustable cushion screws, hydraulic cushioning valves, or elastomeric cushioning rings. These mechanisms slow down the piston’s movement near the end of the stroke, reducing the impact and preventing sudden stops that could lead to instability.
  3. Pressure Compensation: Fluctuating loads can result in pressure variations within the hydraulic system. To ensure stable performance, hydraulic cylinders are equipped with pressure compensation mechanisms. These mechanisms maintain a consistent pressure level in the system, regardless of load changes. Pressure compensation can be achieved through the use of pressure relief valves, compensating pistons, or pressure-compensated flow control valves.
  4. Flow Control: Hydraulic cylinders often incorporate flow control valves to regulate the speed of the cylinder’s movement. By controlling the flow rate of hydraulic fluid, the cylinder’s motion can be adjusted to match the changing load conditions. Flow control valves allow for smooth and controlled movement, preventing abrupt changes that could lead to instability.
  5. Feedback Systems: To ensure stable performance under fluctuating loads, hydraulic cylinders can be integrated with feedback systems. These systems provide real-time information on the cylinder’s position, velocity, and force. By continuously monitoring these parameters, the hydraulic system can make immediate adjustments to maintain stability and compensate for load fluctuations. Feedback systems can include position sensors, pressure sensors, or load sensors, depending on the specific application.
  6. Proper Sizing and Selection: Ensuring stable performance under fluctuating loads starts with proper sizing and selection of hydraulic cylinders. It is crucial to choose cylinders with appropriate bore size, rod diameter, and stroke length to match the anticipated load conditions. Oversized or undersized cylinders can lead to instability and reduced performance. Proper sizing also involves considering factors such as the required force, speed, and duty cycle of the application.

In summary, hydraulic cylinders ensure stable performance under fluctuating loads through features such as piston design, cushioning mechanisms, pressure compensation, flow control, feedback systems, and proper sizing and selection. These mechanisms and considerations allow hydraulic cylinders to provide consistent and controlled movement, even in dynamic load conditions, resulting in reliable and stable performance.

hydraulic cylinder

Can hydraulic cylinders be adapted for use in both industrial and mobile equipment?

Yes, hydraulic cylinders can be adapted for use in both industrial and mobile equipment. The versatility and adaptability of hydraulic systems make them suitable for a wide range of applications across various industries. Here’s a detailed explanation:

1. Industrial Equipment:

– Hydraulic cylinders are extensively used in industrial equipment such as manufacturing machinery, construction equipment, material handling systems, and heavy-duty machinery. They provide the necessary force and controlled movement for tasks such as lifting, pushing, pulling, and positioning heavy loads. Industrial hydraulic cylinders are typically designed for robustness, durability, and high load-bearing capacities to withstand the demanding environments and heavy-duty applications encountered in industries.

2. Mobile Equipment:

– Hydraulic cylinders are also widely adopted in mobile equipment, including agricultural machinery, mining equipment, forestry machinery, and transportation vehicles. These cylinders enable various functions such as tilting, lifting, steering, and stabilizing. Mobile hydraulic cylinders are designed to be compact, lightweight, and efficient to meet the specific requirements of mobile applications. They are often integrated into hydraulic systems that power multiple functions in a single machine.

3. Adaptability:

– One of the key advantages of hydraulic cylinders is their adaptability. They can be customized and configured to suit different operating conditions, equipment sizes, load capacities, and speed requirements. Hydraulic cylinder manufacturers offer a wide range of sizes, stroke lengths, mounting options, and rod configurations to accommodate diverse applications. This adaptability allows hydraulic cylinders to be utilized in both industrial and mobile equipment, serving various purposes across different sectors.

4. Mounting Options:

– Hydraulic cylinders can be adapted to different mounting arrangements to suit the specific requirements of industrial and mobile equipment. They can be mounted in various orientations, including vertical, horizontal, or at an angle. Different mounting options, such as flange mounts, trunnion mounts, and clevis mounts, provide flexibility in integrating hydraulic cylinders into different equipment designs.

5. Integration with Hydraulic Systems:

– Hydraulic cylinders are often part of a larger hydraulic system that includes components such as pumps, valves, hoses, and reservoirs. These systems can be tailored to meet the specific needs of both industrial and mobile equipment. The hydraulic system’s design and configuration can be adapted to provide the necessary flow rates, pressures, and control mechanisms required for optimal performance in the intended application.

6. Control and Automation:

– Hydraulic cylinders in both industrial and mobile equipment can be integrated with control systems and automation technologies. This allows for precise and automated control of the cylinder’s movement and function. Proportional control valves, sensors, and electronic controls can be incorporated to achieve accurate positioning, speed control, and synchronization of multiple hydraulic cylinders, enhancing overall equipment performance and productivity.

7. Safety Considerations:

– Hydraulic cylinders for both industrial and mobile equipment are designed with safety in mind. They often feature built-in safety mechanisms such as overload protection, pressure relief valves, and emergency stop systems to prevent accidents and equipment damage. Safety standards and regulations specific to each industry are taken into account during the design and adaptation of hydraulic cylinders for different applications.

Overall, hydraulic cylinders offer the adaptability and performance required for use in both industrial and mobile equipment. Their versatility, customizable features, mounting options, integration capabilities, and safety considerations make them suitable for a wide range of applications across diverse industries. Whether it’s heavy-duty industrial machinery or mobile equipment operating in challenging environments, hydraulic cylinders can be adapted to meet the specific needs and requirements of various equipment types.

China Best Sales Made in China SD73GF-2-156 CZPT Long Stroke Type Double Acting Hydraulic Cylinder   vacuum pump ac system	China Best Sales Made in China SD73GF-2-156 CZPT Long Stroke Type Double Acting Hydraulic Cylinder   vacuum pump ac system
editor by CX 2023-10-16

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