Product Description
Boom Arm Bucket Excavator Hydraulic Cylinder Stick Cylinder for HD250 HD307 HD450 HD700 HD770 HD800 HD820 HD1250
Product Parameters
| Material | Q345B,40Cr |
| Finish | Smooth |
| Colors | Black/yellow/blue/red |
| Technique | Forging casting |
| weight | 100-1500kg |
| Warranty time | 1-7months |
| Certification | ISO9001 |
| Delivery Time | Within 1-7 days after contract established |
Related Products
Product List
| PC120-6 | PC130 | PC130-7 | PC200 | PC200-1 | PC200-3 | PC200-5 | PC200-6 | PC200-7 |
| PC200-8 | PC210-6 | PC220-1 | PC220-3 | PC220-6 | PC220-7 | PC220-8 | PC270-7 | PC202B |
| PC20-7 | PC30 | PC30-3 | PC30-5 | PC30-6 | PC40-7 | PC45 | PC45-2 | PC55 |
| PC220LC-6 | PC220LC-8 | PC240 | PC300 | PC300-3 | PC300-5 | PC300-6 | PC300-7 | PC300-7K |
| PC300LC-7 | PC350-6/7 | PC400 | PC400-3 | PC400-5 | PC400-6 | PC400LC-7 | PC450-6 | PC450-7 |
| PC600 | PC650 | PC750 | PC800 | PC1100 | PC1250 | PC2000 | ||
| EX100 | EX110 | EX120 | EX120-1 | EX120-2 | EX120-3 | EX120-5 | EX130-1 | EX200-1 |
| EX200-2 | EX200-3 | EX200-5 | EX220-3 | EX220-5 | EX270 | EX300 | EX300-1 | EX300-2 |
| EX300-3 | EX300-5 | EX300A | EX330 | EX370 | EX400-1 | EX400-2 | EX400-3 | EX400-5 |
| EX40-1 | EX40-2 | EX55 | EX60 | EX60-2 | EX60-3 | EX60-5 | EX70 | EX75 |
| EX450 | ZAX30 | ZAX55 | ZAX200 | ZAX200-2 | ZAX330 | ZAX450-1 | ZAX450-3 | ZAX450-5 |
| ZX110 | ZX120 | ZX200 | ZX200 | ZX200-1 | ZX200-3 | ZX200-59 | ZX200LC-3 | ZX210 |
| ZX210-3 | ZX210-3 | ZX210-5 | ZX225 | ZX240 | ZX250 | ZX270 | ZX30 | ZX330 |
| ZX330 | ZX350 | ZX330C | ZX450 | ZX50 | ||||
| E200B | E200-5 | E320D | E215 | E320DL | E324D | E324DL | E329DL | E300L |
| E3205 | E320 | E320DL | E240 | E120-1 | E311 | E312B | E320BL | E345 |
| E324 | E140 | E300B | E330C | E120 | E70 | E322C | E322B | E325 |
| E325L | E330 | E450 | CAT225 | CAT312B | CAT315 | CAT320 | CAT320C | CAT320BL |
| CAT330 | CAT322 | CAT245 | CAT325 | CAT320L | CAT973 | |||
| SH120 | SH120-3 | SH200 | SH210-5 | SH200 | SH220-3 | SH220-5/7 | SH290-3 | SH350-5/7 |
| SH220 | SH280 | SH290-7 | SH260 | SH300 | SH300-3 | SH300-5 | SH350 | SH60 |
| SH430 | ||||||||
| SK120-6 | SK120-5 | SK210-8 | SK210LC-8 | SK220 | SK220-1 | SK220-3 | SK220-5/6 | SK200 |
| SK200 | SK200 | SK200-3 | SK200-6 | SK200-8 | SK200-5/6 | SK60 | SK290 | SK100 |
| SK230 | SK250 | SK250-8 | SK260LC-8 | SK300 | SK300-2 | SK300-4 | SK310 | SK320 |
| SK330-8 | SK330 | SK350LC-8 | SK235SR | SK450 | SK480 | SK30-6 | ||
| DH200 | DH220-3 | DH220 | DH2205 | DH280-2 | DH280-3 | DH55 | DH258 | DH130 |
| DH370 | DH80 | DH500 | DH450 | DH225 | ||||
| R60-5 | R60-7 | R60-7 | R80-7 | R200 | R200-3 | R210 | R210 | R210-9 |
| R210LC | R210LC-7 | R225 | R225-3 | R225-7 | R250 | R250-7 | R290 | R290LC |
| R290LC-7 | R320 | R360 | R954 | |||||
| HD512 | HD1430 | HD512III | HD820III | HD820R | HD1430III | HD700VII | HD1250VII | HD250SE |
| HD400SE | HD550SE | HD1880 | ||||||
| DX225 | DX225LCA | DX258 | DX300 | DX300LCA | DX420 | DX430 | ||
| EC160C | EC160D | EC180B | EC180C | EC180D | EC210 | EC210 | EC210B | EC240B |
| EC290 | EC290B | EC240 | EC55 | EC360 | EC360B | EC380D | EC460 | EC460B |
| EC460C | EC700 | EC140 | EC140B | EC160B |
Product Categories
Various models of excavator (more than these)
| We also have others models for different brands,pls contact us soon. | ||||||
| For Daewoo | For Kato | For Caterpillar | For Hitachi | For Kobelco | For Komatsu | For Sumitomo |
| DH55 | HD250 | CAT312 | EX60-7 | SK60-7 | PC40-8 | SH55 |
| DH60 | HD450 | CAT320C | EX120-2 | SK100-5 | PC60-7 | SH60 |
| DH80 | HD512 | E200B | EX120 | SK200-1 | PC100-6 | SH120A1 |
| DH220-5 | HD700-7 | E320B | EX200-1 | SK200-3 | PC120-6 | SH120A2 |
| DH225-7 | HD800 | E320D | EX200-2 | SK200-5 | PC130-7 | SH120A3 |
| … | HD820-3 | … | EX200-3 | SK200-6 | PC200-1 | SH120 |
| HD900 | EX200-5 | … | PC200-5 | SH200A1 | ||
| HD1250-7 | EX300-5 | PC200-6(6D95) | SH200A2 | |||
| HD1430 | ZAX60 | PC200-6(6D102) | SH200A3 | |||
| … | ZAX70 | PC200-6 | SH200C1 | |||
| ZAX200 | PC200-7 | SH280 | ||||
| ZAX300 | PC200-8 | … | ||||
| ZAX330 | PC300-5 | |||||
| … | PC300-6 | |||||
| PC400 | ||||||
Our company supply following serial spare parts
1. Travel Device (motor, gear box) & Its Parts.
2. Swing Device (motor, gear box) & Its Parts.
3. Hydraulic Pump Assy & Its Spare Parts.
4. Swing bearing /slewing ring gear
5. cylinders: arm /boom /bucket cylinder
6. Under carriage parts: steel track and pads, rubber track and pads, track link assy, Track roller, Carrier roller, Sprocket, Idler, track adjuster, etc.
7. cabin assy with cab glass, cab door, cab lock.
8. other related products.
Main Product
Excavator Bucket Boom Arm Cylinder
1.Rod seal:superior quality named-brand seals improve a longer life and seal effect polyurethane U-packing rod seals/buffer seals bonded-to-metal wiper seals custom seals available
2.Tube:Skived&burnished or vertical honing tube assures the concentricity and straightness
3.Bushing:Hardened steel bushing or copper bushing
4.Eye:All eyes are made of forged high strenght steel improve cylinder not only in appearance but in mechanical performance
5.Rod:Induction hardened prior to chrome plating enhances the surface hardness,enhanced chrome plating improve corrosion resistence and anti-scratch performance
6.Piston:High pressure piston sealing material:teflon or nylon seals.High precision machining maximize the consistency of parts.
7.Cap:All caps are made of forged high strength steel.
Available Excavator hydraulic oil cylinder
Company Profile
Xihu (West Lake) Dis.an Machine Equipment Co., Ltd.
HangZhou Xihu (West Lake) Dis.an Machinery Co., Ltd (EB Seals) is a professional supplier for hydraulic breaker parts and excavator parts and OEM hydraulic seals manufacturer. We specialize in completed seal kits and separate seals for hydraulic breaker and excavator more than Ten years in HangZhou, China.
HangZhou Xihu (West Lake) Dis.an supply almost all brands breakers’ parts like Seal kits, Diaphragm, Piston, Chisel, Wear Bush upper and lower, Rod Pin, Through Bolts, Side Bolts, Control Valve,Front Head, Cylinder, Accumulator, N2 Gas Charging Kit, etc. We insist on high quality parts with genuine and OEM after market replacement parts.
Specializes in:
–Hydraulic hammer breaker;
–Hydraulic breaker parts.
FAQ
Q1. How many days for the delivery time ?
It is about 3-7 working days after the order confirmation.
Q2. What kind of payments you accept?
Now we accept T/T, L/C or Western Union, other terms also could be negotiated, Recommended Trade Assurance to guarantee buyer’s property.
Q3. Are you able to manufacturing products according to customer’s design?
Sure, we have made many special orders from oversea for 10 years since 2571. So we have enough ability to deal with any cases. OEM certificate is available to provided.
Q4. What’s your advantages in the machinery manufacturing industry?
Fast delivery time, High quality products, Best customer service, Adopting the latest production technology.
Q5. Which countries have you been exported recently?
Canada, Australia, Peru, Egypt, Brazil, Mexico, South Africa, etc.
Q6. Are you sure that your product will fit my hydraulic breaker?
We have different brand hydraulic oil cylinder. Show me your model number, and we can give you best match products.
Q7. How about the Q7.packing of the goods?
Standard export package, wood cases, or as customers’ demands.
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| After-sales Service: | Online |
|---|---|
| Warranty: | 3 Month |
| Type: | Excavator Bucket |
| Application: | Excavator |
| Certification: | CE |
| Condition: | New |
| Customization: | Available |
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How does a boom cylinder contribute to precise boom positioning?
A boom cylinder plays a crucial role in achieving precise boom positioning. Here’s a detailed explanation:
Precise boom positioning is essential in various applications, including construction equipment, such as cranes and aerial lifts. Boom cylinders contribute to precise boom positioning in the following ways:
- Controlled Extension and Retraction: Boom cylinders enable controlled extension and retraction of the boom. By adjusting the hydraulic pressure within the cylinder, operators can precisely position the boom at desired lengths. This controlled movement ensures accurate reach and avoids overshooting or undershooting the target position.
- Smooth Articulation: Boom cylinders provide smooth articulation of the boom sections. They allow for controlled movement and precise positioning of the boom’s multiple segments, such as the main boom, jib, or telescopic sections. Smooth articulation ensures seamless boom operation and precise positioning of the load or working platform.
- Load Stabilization: Boom cylinders help stabilize the load during boom movement. They counterbalance the weight of the load and provide stability, minimizing swinging or swaying of the load during positioning. This stability is crucial for achieving precise positioning, especially when working with delicate or sensitive loads.
- Incremental Control: Boom cylinders offer incremental control over the boom’s movement. Operators can make small adjustments to the boom’s position by modulating the hydraulic pressure within the cylinder. This incremental control allows for fine-tuning and precise alignment of the boom, ensuring accurate positioning of the load or attachment.
- Operator Feedback: Many modern boom systems incorporate feedback mechanisms, such as sensors or load moment indicators. These systems provide real-time feedback to the operator about the boom’s position, angle, and load conditions. By monitoring this feedback, operators can make precise adjustments to achieve the desired boom positioning.
By enabling controlled extension and retraction, smooth articulation, load stabilization, incremental control, and operator feedback, boom cylinders significantly contribute to achieving precise boom positioning. These features ensure accurate reach, alignment, and stability, allowing operators to perform tasks with precision and efficiency.
It’s important to note that precise boom positioning also depends on other factors, such as the design and construction of the boom system, the operator’s skill and experience, and the integration of advanced control technologies in the equipment.

How does a boom cylinder handle variations in cylinder size and capacity?
A boom cylinder is designed to handle variations in cylinder size and capacity. Here’s a detailed explanation:
Boom cylinders are hydraulic actuators used in various applications, such as construction equipment, material handling machinery, or forestry equipment. They are responsible for providing the necessary force and controlled movement to extend, retract, and articulate the boom or arm.
When it comes to handling variations in cylinder size and capacity, boom cylinders are designed and manufactured to match the specific requirements of the equipment and the intended application. Here’s how they handle these variations:
- Size Customization: Boom cylinders can be customized in terms of size to fit different equipment configurations. The size of the cylinder, including its length and diameter, can be adjusted to ensure proper installation and compatibility with the boom or arm it is attached to. The size customization allows for optimized performance and efficient operation of the equipment.
- Capacity Selection: Boom cylinders are available in different capacity options to handle varying loads and operating conditions. The capacity of the cylinder refers to its ability to generate the required force to move the boom or arm. Higher capacity cylinders are used for heavy-duty applications, while lower capacity cylinders are suitable for lighter loads. The appropriate capacity selection ensures that the boom cylinder can handle the specific load requirements of the equipment.
- Pressure and Flow Control: Boom cylinders utilize hydraulic systems to generate the required force. The hydraulic pressure and flow rate can be adjusted or controlled to match the cylinder size and capacity. By regulating the pressure and flow, the boom cylinder can effectively handle variations in size and capacity while maintaining the desired performance and control.
- Sealing and Internal Components: Boom cylinders are equipped with sealing systems and internal components that are designed to withstand the forces and pressures involved. These components are carefully selected to ensure compatibility with the cylinder size and capacity. Proper sealing and internal components help to maintain the cylinder’s efficiency and prevent leaks or failures, regardless of the size or capacity of the cylinder.
Overall, boom cylinders are engineered to handle variations in cylinder size and capacity by offering customization options, capacity selection, pressure and flow control, and appropriate sealing and internal components. These features ensure that the boom cylinders can effectively and reliably perform their intended functions across different equipment configurations and operating conditions.
It’s important to consult the equipment manufacturer’s guidelines and recommendations when selecting and installing boom cylinders to ensure compatibility and optimal performance.

What are the key components and features of a boom cylinder?
A boom cylinder consists of several key components and features that enable its functionality and performance in heavy machinery. Here’s a detailed explanation:
- Cylinder Barrel: The cylinder barrel is the main body of the boom cylinder, typically made of high-strength steel. It houses the piston, seals, and other internal components. The cylinder barrel is designed to withstand high pressure and provide structural integrity to the cylinder.
- Piston: The piston is a cylindrical component that moves back and forth inside the cylinder barrel. It is usually made of durable materials and acts as a barrier between the two chambers of the cylinder. The piston divides the cylinder into a rod side and a cap side, allowing hydraulic fluid to act on one side or the other to create the desired motion.
- Rod: The rod is a solid metal shaft attached to the piston and extending outside the cylinder barrel. It transmits the force generated by the hydraulic fluid to the boom or other connected components. The rod is designed to withstand tensile and compressive forces and is often coated or treated to resist corrosion and wear.
- Seals: Seals are essential components that prevent hydraulic fluid leakage and maintain the integrity of the cylinder. They are positioned between the piston, rod, and cylinder barrel to create a tight seal. Common types of seals used in boom cylinders include piston seals, rod seals, and wiper seals.
- Ports and Fittings: Boom cylinders have ports and fittings that allow the connection of hydraulic hoses or pipes to supply hydraulic fluid. These ports enable the controlled flow of hydraulic fluid into and out of the cylinder, creating the necessary pressure for boom movement.
- Mounting Brackets: Mounting brackets are used to attach the boom cylinder to the heavy machinery’s frame or structure. They provide stability and support, ensuring proper alignment and secure installation of the cylinder.
- Internal Cushions: Some boom cylinders feature internal cushions or shock absorbers. These cushions help dampen the impact and reduce vibrations during the extension or retraction of the boom. Internal cushions improve the smoothness of boom movement, enhance operator comfort, and reduce stress on the cylinder and other components.
- Corrosion Protection: Boom cylinders are often coated or treated with corrosion-resistant materials to withstand harsh environmental conditions. These protective measures help extend the cylinder’s lifespan and maintain its performance over time.
- Load Capacity and Pressure Rating: Boom cylinders are designed with specific load capacities and pressure ratings to handle the heavy loads and pressures involved in heavy machinery operations. The load capacity and pressure rating determine the cylinder’s strength and suitability for different applications.
In summary, the key components and features of a boom cylinder include the cylinder barrel, piston, rod, seals, ports and fittings, mounting brackets, internal cushions, corrosion protection, load capacity, and pressure rating. These components and features work together to enable the controlled extension, retraction, lifting, and lowering of the boom in heavy machinery, ensuring efficient and reliable operation.


editor by CX 2024-02-07