
( Brand: Parker ), ( Manufacturer Part Number: 308360 ), ( Type: Cylinders Accessories )
The **Parker Hannifin 308360 Hydraulic Cylinder (Part Number 131538)** is a high-performance, double-acting, tie-rod hydraulic actuator engineered for demanding industrial applications requiring precision, durability, and reliability. This robust cylinder is part of Parker s renowned **LH Series**, renowned for its superior sealing technology, corrosion resistance, and adaptability across a wide range of machinery, including material handling systems, construction equipment, agricultural machinery, and heavy-duty press applications. Constructed with a **high-strength steel body**, the cylinder is designed to withstand extreme pressures typically rated for **3,000 to 5,000 psi (207 to 345 bar)** while maintaining exceptional fatigue resistance and structural integrity over prolonged use. Its **tie-rod design** ensures easy maintenance and repair, as components like the rod seals, wipers, and end caps can be serviced without disassembling the entire assembly, reducing downtime and operational costs.
The **131538 model** features a **1.75-inch (44.45 mm) bore diameter**, providing a balanced stroke length and force output suitable for medium-duty applications where moderate displacement and thrust are required. The **standard stroke length** (typically ranging from **12 to 24 inches or 300 to 600 mm**, though custom configurations are available) allows for versatile integration into compact or space-constrained systems without compromising performance. Parker s proprietary **sealing system**, often incorporating **Parker s proprietary polyurethane or nitrile elastomers**, ensures minimal leakage, superior wear resistance, and protection against contaminants, extending the cylinder s operational lifespan even in harsh environments. The **double-acting design** enables bidirectional force application, making it ideal for applications such as clamping, lifting, pushing, or pulling, where precise control and efficiency are critical.
For enhanced durability, the **Parker 308360** is often equipped with **hard chrome-plated rods**, which provide superior resistance to abrasion, corrosion, and galling, significantly reducing the risk of premature wear. The cylinder s **end caps** are securely fastened using **high-strength bolts and nuts**, ensuring consistent preload and preventing loosening under dynamic loads. Additionally, the **rod wiper and dust seal assembly** effectively shields the internal components from debris, moisture, and particulate contamination, which is particularly beneficial in outdoor or dirty environments. The **mounting options** are versatile, accommodating **clevis, flange, or trunnion mounts**, allowing for flexible installation in various orientations to suit the specific requirements of the application.
Parker s **LH Series** cylinders are also designed with **low-friction piston rods**, often featuring **low-friction coatings or polished finishes**, which minimize energy loss and improve efficiency during extension and retraction. This design consideration is particularly advantageous in applications where energy conservation and smooth operation are priorities. The **hydraulic connections** typically **AN, JIC, or NPT threaded ports** are engineered for leak-proof performance, with options for **quick-connect fittings** to simplify maintenance and reduce connection time. For applications requiring additional protection, the cylinder can be specified with **extended rod seals, magnetic plugs, or drain ports** to facilitate fluid drainage and prevent internal contamination.
The **Parker 308360 (131538)** is backed by Parker Hannifin s reputation for **industry-leading quality assurance**, with rigorous testing protocols to ensure compliance with **ISO, SAE, and DIN standards**. This cylinder is widely used in sectors where reliability and performance are non-negotiable, including **automotive manufacturing, metalworking, mining, and heavy machinery**, where failure is not an option. Whether integrated into a **hydraulic press, material handler, or agricultural implement**, this cylinder delivers consistent performance under demanding conditions, making it a trusted choice for engineers and operators seeking a balance of strength, precision, and longevity. With its modular design and compatibility with Parker s extensive range of hydraulic components, the **308360** offers a scalable solution that can be customized to meet evolving application needs.
### **Parker 308360 Hydraulic Cylinder (Part Number: 131538) Pros and Cons**
#### **Overview**
The **Parker 308360 hydraulic cylinder (131538)** is a double-acting, single-rod, tie-rod-style cylinder commonly used in industrial machinery, material handling, and mobile equipment. It is designed for high-pressure applications and offers robust performance but comes with trade-offs depending on the use case.
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### **Pros**
1. **High Reliability and Durability**
- Parker is a well-established brand known for manufacturing high-quality hydraulic components. This cylinder is built to withstand heavy loads and frequent cycling, reducing the risk of premature failure.
- The **tie-rod design** provides structural integrity, preventing catastrophic failure under extreme pressure.
2. **Wide Compatibility**
- The **308360 series** is part of Parker s modular hydraulic cylinder line, meaning it can be easily integrated into existing systems with minimal modifications.
- Common mounting options (flange, clevis, trunnion) make it adaptable to various applications, including presses, conveyors, and agricultural machinery.
3. **Precision Engineering**
- The cylinder features **sealed rod guidance** (often with Parker s **Sealite** or **Hydra-Seal** systems), reducing wear and extending service life.
- **Double-acting operation** allows for controlled extension and retraction, improving efficiency in bidirectional applications.
4. **Standardized Maintenance**
- Parker cylinders are designed for easy servicing rod seals, wiper seals, and cushioning can be replaced without disassembling the entire unit.
- Availability of **OEM replacement parts** ensures long-term support.
5. **Pressure and Flow Ratings**
- Rated for **high working pressures (typically 3,000 5,000 psi)**, making it suitable for demanding industrial tasks.
- Compatible with standard hydraulic fluids (mineral oil, water-glycol mixes), ensuring versatility.
6. **Cost-Effective for Heavy-Duty Use**
- While not the cheapest option, its **longevity and reduced downtime** often justify the initial investment in high-use environments.
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### **Cons**
1. **Higher Upfront Cost**
- Compared to generic or aftermarket cylinders, Parker s **premium branding and quality control** result in a higher purchase price.
- For budget-sensitive applications, this may be a significant drawback.
2. **Specialized Installation Requirements**
- The **tie-rod design** requires precise alignment during installation to prevent binding or uneven wear.
- Improper mounting can lead to **leaks or premature seal failure**, increasing maintenance costs.
3. **Limited Customization**
- While modular, the **308360 series has fixed dimensions** (stroke length, bore size). Custom modifications (e.g., extended stroke, specialized ports) may require additional engineering or third-party solutions.
4. **Weight and Space Considerations**
- As a **heavy-duty cylinder**, it is **bulkier and heavier** than lighter-duty alternatives, which may impact mobility in compact machinery.
5. **Dependence on Parker s Support Network**
- While Parker has a strong global service network, **authorized dealers may charge premium prices** for repairs or replacements.
- In remote locations, **parts availability could be delayed**, increasing downtime.
6. **Potential for Overkill in Light-Duty Applications**
- For applications with **low-cycle or low-pressure demands**, a Parker cylinder may be **more expensive than necessary** lighter, cheaper alternatives (e.g., Bosch Rexroth, Eaton) could suffice.
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### **Conclusion**
The **Parker 308360 (131538) hydraulic cylinder** is an excellent choice for **high-reliability, heavy-duty industrial applications** where longevity, precision, and brand support are critical. Its **double-acting design, robust construction, and modular compatibility** make it ideal for **presses, material handling systems, and mobile equipment** where failure is not an option.
However, if **cost efficiency is the primary concern** or the application involves **low-cycle, low-pressure operations**, a **mid-range or budget-friendly alternative** (e.g., a reputable aftermarket cylinder or a different brand s heavy-duty model) may be more practical.
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### **Recommendation**
- **Buy the Parker 308360 if:**- You operate in a **high-demand, high-reliability environment** (e.g., manufacturing plants, mining, heavy construction).
- Your system **requires Parker s specific compatibility** (e.g., existing hydraulic lines, control systems).
- You prioritize **long-term durability and minimal maintenance** over upfront cost.
- **Consider alternatives if:**- Your budget is **strictly limited**, and a **mid-range cylinder** (e.g., Bosch Rexroth, Eaton, or a trusted aftermarket brand) meets your needs.
- The application involves **light-duty or intermittent use**, where a lighter cylinder would suffice.
- You require **custom modifications** (e.g., extended stroke) that Parker does not easily accommodate.
For most **industrial and heavy machinery applications**, the Parker 308360 remains a **strong, well-supported choice** just ensure the **installation is professional** and the **operating conditions align with its specifications**.
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