Product Description
Product Description
| 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 | 180mm/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: | CE, ISO9001 |
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| Pressure: | Medium Pressure |
| Work Temperature: | Normal Temperature |
| Customization: |
Available
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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How does a double-acting hydraulic cylinder handle variations in environmental conditions?
A double-acting hydraulic cylinder is designed to handle variations in environmental conditions effectively. Here’s a detailed explanation:
1. Sealing Mechanism: Double-acting hydraulic cylinders are equipped with sealing mechanisms that help protect the internal components from environmental elements. The cylinder is typically sealed with high-quality seals and gaskets that prevent the ingress of contaminants such as dirt, dust, and moisture. This sealing mechanism helps maintain the integrity of the hydraulic system and ensures reliable operation even in challenging environmental conditions.
2. Corrosion Resistance: Double-acting hydraulic cylinders are often constructed from materials that offer excellent corrosion resistance. Common materials used include stainless steel, chrome-plated steel, or other corrosion-resistant alloys. These materials are chosen to withstand exposure to humid or corrosive environments, such as marine applications or outdoor equipment exposed to weather conditions. The corrosion resistance of the cylinder components ensures its durability and performance over an extended period, even in harsh environmental conditions.
3. Temperature Tolerance: Double-acting hydraulic cylinders are designed to handle variations in temperature effectively. The internal components, such as seals and fluids, are selected to withstand a broad temperature range. Specialized seals and hydraulic fluids can be used to maintain proper performance in extreme heat or cold. Additionally, the cylinder’s design may incorporate temperature compensation features to accommodate thermal expansion and contraction, ensuring consistent and reliable operation across different temperature conditions.
4. Contaminant Filtration: Hydraulic systems that utilize double-acting cylinders often incorporate filtration systems to remove contaminants from the hydraulic fluid. Filtration helps prevent the accumulation of particles that can cause wear and damage to the cylinder components. By maintaining clean hydraulic fluid, the cylinder can operate optimally and handle variations in environmental conditions without compromising performance or longevity.
5. Protective Coatings: In certain applications where additional protection is required, double-acting hydraulic cylinders can be coated with protective materials. These coatings provide an extra layer of defense against environmental factors, such as chemical exposure or abrasive particles. Protective coatings can enhance the cylinder’s resistance to wear, corrosion, and other detrimental effects caused by specific environmental conditions.
6. Compatibility with Environmental Sealing: Depending on the specific application and environmental conditions, double-acting hydraulic cylinders can be integrated with environmental sealing measures. For example, in marine or underwater applications, the cylinder can be designed with additional sealing features to prevent water ingress. Such sealing measures ensure that the cylinder operates reliably and safely in challenging environments.
By incorporating sealing mechanisms, corrosion-resistant materials, temperature tolerance, contaminant filtration, protective coatings, and compatibility with environmental sealing, double-acting hydraulic cylinders can effectively handle variations in environmental conditions. This robust design allows them to operate reliably and maintain performance in diverse applications and challenging environments.
Can double-acting hydraulic cylinders be used in automotive repair and maintenance?
Yes, double-acting hydraulic cylinders can be extensively used in automotive repair and maintenance. Here’s a detailed explanation:
1. Lifting and Lowering Vehicles: Double-acting hydraulic cylinders are commonly employed in automotive lifts and jacks for lifting and lowering vehicles. These cylinders provide the necessary force to raise vehicles off the ground, allowing mechanics to access the underside of the vehicle for repairs, maintenance, or inspections. The bidirectional force generation of double-acting cylinders enables precise control over the lifting and lowering process, ensuring the safety and stability of the vehicle during automotive tasks.
2. Pressing and Clamping: Automotive repair often involves pressing or clamping components together during assembly or disassembly processes. Double-acting hydraulic cylinders can be used in hydraulic presses or clamping devices to provide the required force. By supplying hydraulic pressure to one side of the cylinder, the piston extends, applying force to press or clamp components together. By supplying pressure to the other side, the piston retracts, releasing the pressure. This capability allows for precise and controlled pressing or clamping operations in automotive repair and maintenance.
3. Brake and Suspension System Maintenance: Double-acting hydraulic cylinders play a vital role in brake and suspension system maintenance. For example, when bleeding brake lines, a hydraulic cylinder can be used to pressurize the brake system and force the air bubbles out of the brake fluid. Similarly, in suspension system maintenance, hydraulic cylinders can be employed to compress or decompress suspension components, facilitating repairs or replacements. The precise force control offered by double-acting cylinders ensures accurate and effective maintenance of these critical automotive systems.
4. Engine Hoists and Tilters: Engine repair and maintenance often require lifting, tilting, or removing heavy engines from vehicles. Double-acting hydraulic cylinders are utilized in engine hoists and tilters to provide the necessary force for these tasks. The cylinders can be integrated into lifting mechanisms, allowing controlled lifting and tilting of engines for access to various components or for engine removal and installation. The precise force application of double-acting cylinders ensures the safe handling of heavy engine assemblies.
5. Wheel Alignment and Balancing: Double-acting hydraulic cylinders are also used in wheel alignment and balancing equipment. These cylinders provide the force required to adjust wheel angles and balance tires accurately. By applying precise force to the wheel clamps or alignment mechanisms, the cylinders enable mechanics to align wheels correctly and achieve balanced tire rotations, ensuring optimal vehicle performance, safety, and tire longevity.
Given their applications in lifting and lowering vehicles, pressing and clamping operations, brake and suspension system maintenance, engine hoisting and tilting, as well as wheel alignment and balancing, double-acting hydraulic cylinders are indispensable in automotive repair and maintenance. Their precise force control and versatility make them valuable tools for mechanics and technicians in the automotive industry.
Can double-acting hydraulic cylinders be used for both pushing and pulling applications?
Yes, double-acting hydraulic cylinders can be used for both pushing and pulling applications. Here’s a detailed explanation:
1. Bidirectional Force: Double-acting hydraulic cylinders are designed to generate force in both the extension and retraction strokes. When hydraulic fluid is applied to the cylinder’s cap end, it pushes the piston, creating a pushing force. Conversely, when hydraulic fluid is applied to the rod end, it pulls the piston, generating a pulling force. This bidirectional force capability allows the cylinder to be used for both pushing and pulling applications.
2. Controlled Linear Motion: Double-acting cylinders provide precise control over the linear motion of the piston. By controlling the flow and pressure of hydraulic fluid, the operator can regulate the speed, force, and direction of the cylinder’s movement. This control enables the cylinder to perform pushing and pulling tasks with accuracy and control.
3. Versatility in Applications: The ability of double-acting hydraulic cylinders to push and pull makes them highly versatile in a wide range of applications. They can be used in various industries and sectors where controlled linear force is required. Some common applications include lifting, pushing, pulling, clamping, bending, and holding tasks. For example, in manufacturing, double-acting cylinders are used in presses, assembly lines, and robotics. In construction, they are employed in equipment like excavators and loaders for lifting and moving heavy loads.
4. Efficient Energy Utilization: Double-acting cylinders are known for their efficient energy utilization. When the cylinder is extending or retracting, the opposite side of the piston can act as a reservoir, storing the hydraulic fluid. This stored energy can be utilized in the opposite stroke, resulting in improved efficiency. This feature is particularly advantageous in applications where energy conservation is important.
5. Control and Safety Measures: When using double-acting hydraulic cylinders for both pushing and pulling applications, proper control and safety measures should be implemented. This includes using appropriate control valves, pressure relief valves, and safety devices to regulate the hydraulic pressure, prevent overloading, and ensure safe operation.
In summary, double-acting hydraulic cylinders can be used for both pushing and pulling applications. Their bidirectional force capability, controlled linear motion, versatility, efficient energy utilization, and the implementation of proper control and safety measures make them suitable for a wide range of tasks that require both pushing and pulling forces.
editor by CX 2023-12-12