Product Description
Model
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| Model No. | Komatsu EJ6895/G | Cylinder Type | Komatsu Type |
| Material | Alloy Steel | structure | Komatsu Type |
| Warranty | Ususally 1 year | Application | Mining ,Building ,Machinery |
| Part No. | EJ6895/G | Product Name | Komatsu front suspension ASSY/830W dump truck |
| Core Components | Seal | Transport | Plywooden Case |
| Work Pressure | 16-30Mpa | Place of China | ZheJiang ,China |
| Specification | Aftermarket | Trademark | ROCA |
| Origin | China | HS Code | 8412210000 |
| Prodcution Capacity | 100 | Â | Â |
Products Description
Product Information
Komatsu Mining Haul Truck EM8840/G Cylinder Rear Suspension ASSY/830EÂ
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| Working temperature | -40°C ~ 80°C |
| Color | RAL9005 ,Customize |
| Material | CK45 ,ST52, ST52-3, 27SiMn , Customize |
| Seal kit | SKF, Trelleborg, Halite, Chesterton, NOK, Kayaba |
| Piston rod | Hard chromed |
| Packaging | Plywood case |
| Warranty | 12 months |
| Payment | T/T |
| Â | Â |
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| Part NO. | Name of Commodity & Specification | Model | Measurement(CMS) | Volume | Net Weight(kg) | Gross WT (kg) | ||||
| Length | Width | Height | m³ | Unit | Total | Unit | Total | |||
| EJ6895/G | Front Suspension ASSY/830E Dump Truck | 830E | 200.00Â | 105.00Â | 112.00Â | 2.35Â | 2348.00Â | 2348.00Â | 2516.00Â | 2516.00Â |
Popular Cylinder Type and Part No. for Mining Haul Truck
| Item No. | Part NO. | Name of Commodity & Â Specification |
Model |
| 1 | EJ6895/G | Front Suspension ASSY/830E Â Dump Truck |
830E |
| 2 | EM8840/G | Rear Suspension ASSY/830E Dump Truck | |
| 3 | EM8354/G | Hoist Cylinder ASSY/830E Dump Truck | |
| 4 | EL7952/G | Steering Cylinder ASSY/830E Dump Truck | |
| 5 | 9T2869/G | Blade Hoist Cylinder | D10T |
| 6 | 2320652/G | Blade Tilt Cylinder LH | |
| 7 | 2320653/G | Blade Tilt Cylinder RH | |
| 8 | 19926445/G | Ripper Lift Cylinder RH | |
| 9 | 19926446/G | Ripper Lift Cylinder LH | |
| 10 | 4T9977/G | Ripper Tilt Cylinder | |
| 11 | 252571/G | Blade Hoist Cylinder | D11T |
| 12 | 3672259 /G | Blade Tilt Cylinder LH | |
| 13 | 3672258 /G | Blade Tilt Cylinder RH | |
| 14 | 1616616/G | Ripper Lift Cylinder LH | |
| 15 | 1616615/G | Ripper Lift Cylinder RH | |
| 16 | 1306381/G | Ripper Lift Cylinder LH | |
| 17 | 1303263/G | Ripper Lift Cylinder RH |
Advantage
Better designs, better material, better value.
ROCA hydraulic cylinders are designed with rugged features to give unequaled service life and performance.
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Mining equipment is continually subjected to torturous conditions that punish hydraulic cylinders. These difficult conditions include dust, grit, heat, cold, and moisture. Besides, the equipment is subject to slamming loads and mechanical impacts.
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ROCA designs and manufactures excavators, dumper trucks, and heavy-duty hydraulic cylinders that endure these very difficult conditions.Â
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Shipment
Company introduction
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 requirements.
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ROCA owned factory offers customers effective-cost products with quality assurance. With its professional and experienced R&D team, CHINAMFG Hydraulic devotes itself to research and development to optimize products applied in construction, mining, waste management, forestry, agriculture, etc.Â
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 large excavators.
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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, Liebherr, BELAZ, and other famous international brands.
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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.Â
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.Â
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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.Â
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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.
FAQÂ
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 own factory.
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| Certification: | GS, RoHS, CE, ISO9001 |
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| Pressure: | High Pressure |
| Work Temperature: | Low Temperature |
| Samples: |
US$ 300/Piece
1 Piece(Min.Order) | Order Sample |
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| 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 do hydraulic cylinders contribute to the overall cost-effectiveness of industrial processes?
Hydraulic cylinders play a crucial role in enhancing the overall cost-effectiveness of industrial processes. They offer several advantages and contribute to increased productivity, improved efficiency, reduced maintenance costs, and enhanced operational performance. Here’s a detailed explanation of how hydraulic cylinders contribute to the cost-effectiveness of industrial processes:
1. High Power Density:
– Hydraulic cylinders provide a high power-to-weight ratio, allowing them to generate substantial force in a compact design. This power density enables the use of smaller and lighter equipment, reducing material and manufacturing costs, and increasing the efficiency of industrial processes.
2. Precise Force and Position Control:
– Hydraulic cylinders offer precise force and position control, allowing for accurate movement and positioning of machinery or workpieces. This level of control enhances process efficiency, reduces material waste, and improves overall product quality. Precise force control also minimizes the risk of equipment damage, further reducing maintenance and repair costs.
3. High Load Handling Capacity:
– Hydraulic cylinders are known for their ability to handle high loads. They can exert significant force, making them suitable for heavy-duty industrial applications. By efficiently handling heavy loads, hydraulic cylinders contribute to increased productivity and throughput, reducing the need for additional equipment and streamlining industrial processes.
4. Flexibility and Versatility:
– Hydraulic cylinders offer a high degree of flexibility and versatility in industrial processes. They can be easily integrated into various types of machinery and equipment, allowing for diverse applications. This adaptability reduces the need for specialized equipment, resulting in cost savings and increased operational efficiency.
5. Energy Efficiency:
– Hydraulic systems, including hydraulic cylinders, can be designed to operate with high energy efficiency. By utilizing efficient hydraulic circuit designs, advanced control systems, and energy recovery mechanisms, hydraulic cylinders minimize energy waste and reduce operational costs. Energy-efficient hydraulic systems also contribute to a more sustainable and environmentally friendly industrial operation.
6. Durability and Longevity:
– Hydraulic cylinders are built to withstand demanding industrial environments and heavy usage. They are constructed with robust materials and undergo stringent quality control measures to ensure durability and longevity. Their ability to withstand harsh conditions and repetitive motion reduces the need for frequent replacements, minimizing downtime and maintenance costs.
7. Reduced Maintenance Requirements:
– Hydraulic cylinders require relatively low maintenance compared to other types of actuators. Properly designed hydraulic systems with efficient filtration and contamination control mechanisms can prevent damage to the cylinders and extend their service life. Reduced maintenance requirements result in lower downtime, decreased labor costs, and improved cost-effectiveness of industrial processes.
8. System Integration and Automation:
– Hydraulic cylinders can be seamlessly integrated into automated industrial processes. By incorporating hydraulic cylinders into automated systems, tasks can be performed with precision and repeatability, reducing human error and optimizing efficiency. Automation also allows for continuous operation, increasing productivity and overall cost-effectiveness.
9. Cost-Effective Replacement:
– In situations where hydraulic cylinders require replacement or repair, the cost-effectiveness of the process is still maintained. Hydraulic cylinders are typically modular in design, allowing for easy replacement of individual components or complete units. This modularity reduces downtime and associated costs, as only the affected components need to be replaced, rather than the entire system.
In summary, hydraulic cylinders contribute to the overall cost-effectiveness of industrial processes through their high power density, precise control capabilities, high load handling capacity, flexibility, energy efficiency, durability, reduced maintenance requirements, system integration, and cost-effective replacement options. Their ability to enhance productivity, efficiency, and operational performance while minimizing maintenance and downtime costs makes hydraulic cylinders a valuable component in various industrial applications.

Ensuring Consistent Force Output for Repetitive Tasks with Hydraulic Cylinders
Hydraulic cylinders are designed to ensure consistent force output for repetitive tasks. This consistency is essential for maintaining precise control, achieving uniform results, and optimizing the performance of hydraulic systems. Let’s explore how hydraulic cylinders achieve consistent force output for repetitive tasks:
- Design and Manufacturing Standards: Hydraulic cylinders are manufactured to meet strict design and manufacturing standards. These standards ensure that the cylinders are built with precision and accuracy, enabling them to deliver consistent force output. The components, such as the piston, cylinder barrel, seals, and valves, are engineered to work together harmoniously, minimizing variations in force generation.
- Pressure Regulation: Hydraulic systems incorporate pressure regulation mechanisms to maintain a constant pressure level. Pressure relief valves, pressure regulators, and pressure-compensated pumps help maintain a consistent hydraulic pressure throughout the system. By regulating the pressure, hydraulic cylinders receive a consistent supply of pressurized fluid, resulting in consistent force output for repetitive tasks.
- Flow Control: Flow control valves are utilized in hydraulic systems to manage the flow rate of hydraulic fluid. These valves regulate the speed at which the fluid enters and exits the hydraulic cylinder, influencing the force output. By controlling the flow rate, hydraulic cylinders can achieve consistent force output for repetitive tasks. This is particularly important when it comes to tasks that require precise and uniform force application.
- Effective Seal Performance: Sealing systems play a crucial role in hydraulic cylinders by preventing fluid leakage and maintaining pressure integrity. High-quality seals and proper installation ensure effective sealing throughout the cylinder’s operation. By minimizing internal leakage, hydraulic cylinders can maintain consistent force output, even during repetitive tasks.
- Maintenance and Inspection: Regular maintenance and inspection of hydraulic cylinders are essential for ensuring consistent force output. By following maintenance schedules, replacing worn-out components, and monitoring cylinder performance, any potential issues that could affect force consistency can be identified and addressed promptly. This proactive approach helps maintain the reliability and performance of hydraulic cylinders over time.
In summary, hydraulic cylinders employ various mechanisms to ensure consistent force output for repetitive tasks. Adherence to design and manufacturing standards, pressure regulation, flow control, effective seal performance, and regular maintenance all contribute to achieving consistent force output. By maintaining precision, minimizing variations, and addressing potential issues, hydraulic cylinders provide reliable and consistent force generation, facilitating the successful completion of repetitive tasks in various applications.

Can hydraulic cylinders be customized for specific equipment or attachment needs?
Yes, hydraulic cylinders can be customized to meet specific equipment or attachment needs. Hydraulic cylinder manufacturers often offer customization options to ensure that the cylinders meet the unique requirements of different applications. Here’s a detailed explanation of how hydraulic cylinders can be customized for specific equipment or attachment needs:
1. Size and Configuration:
– Hydraulic cylinders can be customized in terms of size and configuration to fit specific equipment or attachment requirements. The dimensions of the cylinder, such as bore size, rod diameter, and stroke length, can be tailored to match the available space and the desired force or movement requirements. Additionally, the mounting style and orientation of the cylinder can be customized to ensure proper integration with the equipment or attachment.
2. Operating Pressure and Force:
– The operating pressure and force capabilities of hydraulic cylinders can be customized to suit the specific equipment or attachment needs. Different applications may require different force outputs, and hydraulic cylinder manufacturers can design and manufacture cylinders with the appropriate piston area and pressure ratings to meet those requirements. Customization in this aspect ensures optimal performance and efficiency for the particular equipment or attachment.
3. Stroke Length:
– The stroke length of a hydraulic cylinder refers to the distance the piston can travel from fully retracted to fully extended. Customization of the stroke length allows the hydraulic cylinder to accommodate the specific range of motion required by the equipment or attachment. By adjusting the stroke length, the cylinder can be tailored to deliver the necessary extension and retraction capabilities for efficient operation.
4. Mounting Options:
– Hydraulic cylinders can be customized with various mounting options to facilitate easy installation and integration with specific equipment or attachments. Different applications may require different mounting styles, such as flange mounts, trunnion mounts, or clevis mounts. Manufacturers can provide customized mounting options to ensure proper alignment, stability, and functionality when the cylinder is connected to the equipment or attachment.
5. Sealing and Material Options:
– The sealing system of a hydraulic cylinder is crucial for preventing fluid leakage and maintaining the cylinder’s integrity. Hydraulic cylinder manufacturers offer customization options for sealing materials, such as different types of seals and seal configurations, to suit specific equipment or attachment needs. Additionally, customization of cylinder materials, such as selecting corrosion-resistant materials or specialized coatings, can enhance the cylinder’s durability and performance in specific operating environments.
6. Integration with Control Systems:
– In certain applications, hydraulic cylinders may need to be integrated with sophisticated control systems or automation technologies. Customization can involve incorporating sensors, position feedback devices, or other control elements into the hydraulic cylinder design to enable seamless integration with the overall equipment or attachment control system. This customization ensures precise control, monitoring, and synchronization of the hydraulic cylinder’s movements within the specific application.
7. Specialized Features or Accessories:
– Hydraulic cylinder customization can also involve incorporating specialized features or accessories to meet unique equipment or attachment needs. This may include the integration of safety features, such as pressure relief valves or load-holding valves, or the addition of specific ports or fittings for auxiliary functions or attachments. Customization allows hydraulic cylinders to be tailored to the specific requirements and functionalities of the equipment or attachment.
By offering customization options, hydraulic cylinder manufacturers can provide solutions that precisely match the needs of different equipment or attachment applications. Customized hydraulic cylinders ensure optimal performance, efficiency, and integration, enhancing the overall functionality and productivity of the equipment or attachment. It is important to work closely with experienced manufacturers or hydraulic system specialists to determine the specific customization requirements and ensure the successful implementation of customized hydraulic cylinders.


editor by CX 2023-10-15