Product Description
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.
CHINAMFG 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.
Model
CAT Series – 320DL
Boom Number : 2426731
Stick Number : 2426751
Bucket Number : 2426756
Product introduce
CAT excavator 320DL boom cylinder ,arm cylinder,bucket cylinder
Our excavator hydraulic cylinder has 3 types,boom cylinder,arm cylinder,also named stick cylinder,bucket cylinder, we also can make bulldozer hydraulic lift cylinder.
They are made from good material that are heat-treated and hardened to improve the lifespan while meeting the demanding requirements of earthmoving and mining applications.
Цилиндр стрелы экскаватора CAT 320DL, цилиндр рукояти, цилиндр ковша
| Working temperature | -40°C ~ 80°C |
| Max. duration of extension | 0.5 hour |
| Color | RAL9005,Customize |
| Material | CK45,ST52,ST52-3,27SiMn,Customize |
| Seal kit | Trelleborg, Halite, Chesterton, NOK, Kayaba |
| Piston rod | Hard chromed |
| Packaging | Plywood case |
| Warranty | 12 months |
| Payment | T/T |
Specification
| Max. Working pressure | 250bar |
| Peso | 143kg |
| Working volume | 43L |
| Total volume | 47L |
| Max. Cyl. Load (start tipping) | 345kN |
| Extension | 1 | 2 | 3 |
| Diameter | 149mm | 129mm | 110mm |
| stroke | 1060mm | 1085mm | 1085mm |
Pictures
Excavator is the most widely used construction machinery.
The shock load, harsh working environment, precision movement control require high standards on excavator cylinders.
CHINAMFG 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.
CHINAMFG 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.
CHINAMFG 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.
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.
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| Certification: | GS, RoHS, CE, ISO9001 |
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| Presión: | Medium Pressure |
| Work Temperature: | Low Temperature |
| Acting Way: | Double Acting |
| Working Method: | Straight Trip |
| Adjusted Form: | Regulated Type |
| Customization: | Available |
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Can boom cylinders be used in both mobile and stationary machinery?
Yes, boom cylinders can be used in both mobile and stationary machinery. Here’s a detailed explanation:
Boom cylinders are versatile hydraulic components that are utilized in various types of machinery across different industries. They can be effectively employed in both mobile and stationary equipment. Here’s how boom cylinders are utilized in each type:
- Mobile Machinery: Boom cylinders are commonly used in mobile machinery, such as excavators, loaders, cranes, and aerial work platforms. In these applications, boom cylinders enable the movement and control of booms, arms, or attachments. They provide the necessary force to lift, extend, retract, and rotate the equipment’s components, allowing for efficient operation in various work environments. The ability to adjust the stroke length, variable force control, and integration with hydraulic control systems make boom cylinders ideal for mobile machinery, as they enable precise and controlled movement.
- Stationary Machinery: Boom cylinders are also utilized in stationary machinery, including industrial presses, material handling equipment, and hydraulic presses. In these applications, boom cylinders are used to exert force for pressing, pushing, or lifting tasks. They enable controlled and precise movement of the machinery’s components, ensuring accurate positioning and efficient operation. Boom cylinders can be customized to meet the specific requirements of stationary machinery, such as stroke length, force capacity, and mounting options.
The versatility of boom cylinders makes them suitable for a wide range of applications in both mobile and stationary machinery. The design flexibility and adjustability of boom cylinders allow for customization and adaptation to different equipment types and operational needs. Whether it’s mobile machinery that requires agile and precise movement or stationary machinery that demands controlled force application, boom cylinders provide the necessary hydraulic power to achieve efficient and effective operation.
It’s important to note that while boom cylinders can be used in both mobile and stationary machinery, there may be variations in their design, specifications, and mounting methods to suit the specific requirements of each application. Consulting the equipment manufacturer or hydraulic specialists can help ensure the selection and installation of the appropriate boom cylinders for a particular machinery type.

Can boom cylinders be used in mining equipment for material transport?
Yes, boom cylinders can be used in mining equipment for material transport. Here’s a detailed explanation:
Mining operations involve the extraction, transportation, and processing of various types of materials, such as ores, coal, and minerals. Boom cylinders play an important role in mining equipment for material transport. Here’s how boom cylinders are utilized in this context:
- Excavators: Excavators are commonly used in mining operations for digging and loading materials onto trucks or conveyors. Boom cylinders in excavators enable the controlled movement and positioning of the boom and bucket. They provide the necessary force to lift and transport large volumes of material efficiently and safely.
- Articulated Trucks: Articulated trucks are used for transporting mined materials within the mining site. Boom cylinders are employed in the dump body of articulated trucks to facilitate controlled dumping of the materials. The cylinders enable the lifting and tilting of the dump body, allowing the material to be discharged at desired locations.
- Stackers and Reclaimers: Stackers and reclaimers are used in mining and bulk material handling operations to stack and reclaim materials in stockpiles. Boom cylinders are utilized in the boom or conveyor systems of these machines to control the movement and positioning of the boom or conveyor. This enables the precise stacking and reclaiming of materials, optimizing storage capacity and material flow.
- Ship Loaders and Unloaders: Ship loaders and unloaders are specialized equipment used in mining ports and terminals. Boom cylinders are integral components of these machines, enabling the controlled movement and positioning of the boom or conveyor systems. They facilitate the loading or unloading of materials onto or from ships with precision and efficiency.
The use of boom cylinders in mining equipment for material transport offers several benefits:
- Efficient Material Handling: Boom cylinders provide the necessary force and controlled movement to handle large volumes of materials efficiently. They enable quick and precise loading, unloading, stacking, and reclaiming of materials, optimizing productivity and reducing operational costs.
- Versatility: Boom cylinders can be customized to match the specific requirements of different mining equipment and material transport tasks. They can accommodate varying load capacities, reach requirements, and operating conditions, ensuring versatility in material handling operations.
- Operator Safety: Boom cylinders contribute to operator safety during material transport operations. The controlled movement and stability provided by boom cylinders minimize the risk of accidents or injuries caused by uncontrolled material movement or sudden shifts in load.
- Durability: Boom cylinders are designed to withstand the demanding conditions of mining environments. They are constructed with robust materials and sealing systems to ensure durability and longevity, even in harsh operating conditions.
Overall, boom cylinders are valuable components in mining equipment for material transport. They enable efficient material handling, versatility, operator safety, and durability in mining operations.
It’s important to consult the equipment manufacturer’s guidelines and recommendations to ensure the proper selection, installation, and maintenance of boom cylinders in mining equipment.

How does a boom cylinder differ from other types of hydraulic cylinders?
A boom cylinder differs from other types of hydraulic cylinders in terms of its design, function, and application. Here’s a detailed explanation of the differences:
- Design: Boom cylinders are specifically designed for heavy machinery, such as excavators, cranes, and loaders, where they are used to control the movement of the boom. They are typically larger and more robust compared to other hydraulic cylinders to handle heavy loads and withstand harsh operating conditions.
- Function: The primary function of a boom cylinder is to extend, retract, lift, and lower the boom of heavy machinery. It provides the necessary force and control to maneuver the boom for tasks such as excavation, material handling, or lifting heavy loads. Other types of hydraulic cylinders, such as single-acting or double-acting cylinders, may serve different purposes, such as linear motion control or actuation of specific machine components.
- Application: Boom cylinders are predominantly used in heavy machinery applications where the boom’s movement is critical, such as construction, mining, and material handling. They are specifically designed to meet the requirements of these industries, including the ability to handle high loads, repetitive movements, and extreme operating conditions. Other hydraulic cylinders, on the other hand, have a wide range of applications across various industries, including manufacturing, agriculture, automotive, and aerospace.
- Size and Capacity: Boom cylinders are typically larger in size and have higher load capacities compared to other hydraulic cylinders. This is because they need to accommodate the size and weight of the boom and handle the significant forces involved in heavy machinery operations. Other types of hydraulic cylinders come in various sizes and load capacities, depending on their specific application and requirements.
- Integration: Boom cylinders are often integrated into the hydraulic systems and control mechanisms of heavy machinery. They work in conjunction with other hydraulic components, such as pumps, valves, and actuators, to ensure synchronized and precise boom movements. Other hydraulic cylinders may also be integrated into different systems, but their integration and functionality may vary depending on the specific application.
In summary, a boom cylinder differs from other types of hydraulic cylinders in terms of design, function, application, size, capacity, and integration. Its specialized design and function make it suitable for controlling the movement of the boom in heavy machinery, providing the necessary force, control, and durability required for demanding applications in construction, mining, and material handling industries.


editor by Dream 2024-05-08