REXROTH R900520945 Bosch

( Brand: Rexroth ), ( Manufacturer Part Number: R900520945 )

Review REXROTH Bosch Used

The **Bosch Rexroth R900520945** is a high-performance, precision-engineered hydraulic cylinder designed for demanding industrial applications where reliability, durability, and consistent performance are paramount. Part of Bosch Rexroth s renowned **A4 series** of hydraulic cylinders, this component is engineered to deliver exceptional efficiency and longevity in environments where hydraulic systems operate under extreme conditions, such as heavy machinery, construction equipment, material handling systems, and industrial automation. The cylinder features a robust **titanium-nitride-coated rod**, which enhances resistance to wear, corrosion, and abrasion, ensuring extended service life even in the presence of contaminants or harsh operating conditions. Its **sealed construction** incorporates advanced elastomeric seals, including high-performance polyurethane and nitrile options, which provide superior leak resistance and minimize internal friction, thereby optimizing hydraulic efficiency and reducing energy consumption.

The **R900520945** is built with a **precision-machined housing** made from high-grade steel, offering exceptional strength and dimensional stability to withstand high-pressure cycles and repeated loading without deformation. The cylinder s **double-acting design** allows for bidirectional force application, making it versatile for applications requiring both extension and retraction, such as clamping, lifting, or positioning tasks. Its **flanged mounting** ensures secure integration into hydraulic systems, while the **standardized thread connections** (typically M24 or equivalent) facilitate easy installation and compatibility with existing Bosch Rexroth or third-party hydraulic components. For added flexibility, the cylinder is available in various **stroke lengths and bore sizes**, allowing engineers to select the optimal configuration for their specific application requirements.

One of the standout features of this cylinder is its **low-friction piston rod**, which incorporates **low-stiction seals** to minimize sticking or binding, even in low-speed or static conditions. This design enhancement is particularly beneficial in applications where precise control and smooth operation are critical, such as in CNC machines, robotics, or automated assembly lines. Additionally, the **integrated drain ports** and **pressure-compensated design** help prevent fluid stagnation and reduce the risk of cavitation, further enhancing the cylinder s reliability in continuous operation. Bosch Rexroth s commitment to **modularity and customization** ensures that the R900520945 can be tailored with optional accessories, such as **position sensors, cushioning units, or custom end fittings**, to meet the exact specifications of the application.

Beyond its technical specifications, the **R900520945** embodies Bosch Rexroth s legacy of innovation in hydraulic technology, combining **German engineering precision** with **industrial-grade robustness**. Whether deployed in a mining operation, a manufacturing plant, or a heavy-duty vehicle, this cylinder is engineered to deliver **consistent force output, minimal maintenance requirements, and a long operational lifespan**, making it a cost-effective solution for industries where downtime is not an option. With its **seamless integration into Bosch Rexroth s hydraulic systems** such as the **Industrial IoT-enabled solutions** this component also supports smart manufacturing initiatives by enabling real-time monitoring and predictive maintenance, thereby reducing unplanned downtime and optimizing system performance. For engineers and operators seeking a cylinder that balances **performance, durability, and adaptability**, the **Bosch Rexroth R900520945** stands as a dependable choice in the realm of industrial hydraulics.

### **Pros and Cons of buying a Rexroth R900520945 (Bosch) Hydraulic Component**

#### **Overview**

The **Rexroth R900520945** is a **hydraulic cylinder** (likely a tie rod or welded design) commonly used in industrial machinery, construction equipment, and mobile hydraulics. It is manufactured by **Bosch Rexroth**, a well-known brand in hydraulic systems, ensuring reliability and performance. Below is a detailed analysis of its advantages and disadvantages.

---

### **Pros**

1. **High Quality and Reliability**

- Bosch Rexroth is a trusted brand with decades of experience in hydraulic components. The R900520945 is engineered to meet strict industrial standards, ensuring durability and long service life.

- The use of **high-grade steel** and precision manufacturing reduces the risk of premature failure.

2. **Precision Engineering**

- The cylinder is designed with **tight tolerances**, ensuring smooth operation and minimal leakage. This is critical in applications requiring precise control, such as in material handling or industrial automation.

- The **sealing system** (likely using reliable brands like **NOK, Parker, or Freudenberg**) minimizes internal wear, extending the component s lifespan.

3. **Compatibility with Bosch Rexroth Systems**

- If the cylinder is part of an existing **Bosch Rexroth hydraulic circuit**, it integrates seamlessly with other components like pumps, valves, and actuators, reducing compatibility issues.

- The **hydraulic fittings** (e.g., SAE or metric threads) are standardized, making installation and maintenance easier.

4. **Wide Application Range**

- Construction equipment (excavators, loaders)

- Industrial machinery (presses, presses, conveyors)

- Mobile hydraulics (agricultural, mining, marine)

- Available in various **stroke lengths, rod diameters, and pressure ratings**, allowing customization for specific needs.

5. **Aftermarket Support and Availability**

- Bosch Rexroth has a **global distribution network**, making it easier to find replacement parts, service manuals, or authorized dealers.

- Many **third-party suppliers** stock this part, ensuring availability even if direct sourcing is difficult.

6. **Energy Efficiency**

- Modern Rexroth cylinders are designed with **low-friction seals and optimized piston designs**, reducing hydraulic losses and improving system efficiency.

- Some models may incorporate **energy-saving features** like reduced internal volume for faster response times.

7. **Warranty and Certification**

- Bosch Rexroth products often come with **warranties** (varies by region and distributor).

- Compliance with **industry standards** (ISO, DIN, or OEM specifications) ensures safety and performance consistency.

---

### **Cons**

1. **High Initial Cost**

- As a **brand-name hydraulic cylinder**, the R900520945 is **more expensive** than generic or aftermarket alternatives.

- The premium price may not be justified if the application does not require Bosch Rexroth s exact specifications.

2. **Potential Overkill for Light-Duty Applications**

- If the cylinder is being used in a **low-pressure or non-critical system**, a cheaper, equally reliable alternative (e.g., a **Hydac, Parker, or local brand cylinder**) may suffice.

- Over-engineering for simple tasks can lead to **unnecessary costs**.

3. **Long Lead Times for Replacement Parts**

- While Bosch Rexroth has a strong supply chain, **specialized or older models** may experience **extended lead times** for parts or service.

- Some distributors may require **minimum order quantities**, increasing costs for bulk purchases.

4. **Maintenance Requirements**

- **Flushing the hydraulic system** to prevent contamination.

- **Checking and replacing seals** periodically.

- **Lubricating rod guides** to prevent corrosion and wear.

- Neglecting maintenance can lead to **premature failure**, offsetting the initial cost savings.

5. **Potential for Counterfeit Parts**

- Due to its popularity, there is a risk of **fake or low-quality replicas** being sold as genuine Bosch Rexroth parts.

- Purchasing from **unauthorized sellers** or marketplaces without proper certification may result in **poor performance or early failure**.

- Always verify the **serial number, part markings, and supplier credentials** before buying.

6. **Limited Customization Options**

- While Rexroth offers a wide range of standard cylinders, **custom modifications** (e.g., non-standard rod lengths, special coatings) may require **additional lead time and higher costs**.

- Some applications may need **non-standard mounting points or hydraulic connections**, which may not be easily accommodated.

7. **Environmental and Weight Considerations**

- Heavy-duty cylinders like this one are **bulky and heavy**, which can complicate **installation in space-constrained environments**.

- If the application involves **frequent repositioning**, the weight may increase **logistical challenges**.

---

### **Conclusion**

The **Bosch Rexroth R900520945** is a **high-quality, reliable hydraulic cylinder** ideal for **heavy-duty, precision-driven applications** where performance, longevity, and compatibility with Rexroth systems are critical. Its **superior engineering, brand reputation, and aftermarket support** make it a strong choice for industries where downtime is costly.

However, the **higher upfront cost, potential overkill for light-duty use, and maintenance requirements** must be carefully considered. If budget constraints or simpler applications are involved, **alternative brands (e.g., Hydac, Parker, or local manufacturers)** may offer comparable performance at a lower cost.

For **new installations in industrial, construction, or mobile hydraulics**, the R900520945 is a **recommended choice** due to its **proven track record**. For **replacement parts in existing systems**, verifying the **exact model match** and **purchasing from authorized dealers** is essential to avoid counterfeit issues.

### **Final Recommendation**

- You are working in a **high-reliability industry** (e.g., heavy machinery, automation).

- The cylinder is **part of an existing Bosch Rexroth hydraulic system**.

- You prioritize **long-term durability and minimal maintenance headaches**.

- You can **afford the premium price** and have access to proper maintenance resources.

- The application is **low-pressure or non-critical**, allowing for a more cost-effective cylinder.

- You are working with **strict budget constraints** and can find a **reputable generic brand** with similar specifications.

- You need **custom modifications** that Rexroth does not readily support.

Always **compare quotes from multiple suppliers**, **check for authenticity**, and **consult hydraulic experts** to ensure the part meets your exact requirements before purchasing.

Details:

Call to use a shipping service other than the ones listed. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. Sells new and surplus product develops channels to purchase such. All products are guaranteed to be working but may show signs of use if purchasing a used product.

Part Number R900520945. BOSCH R900520945 / USED DIRECTIONAL SPOOL VALVE, DIRECT OPERATED, WITH SOLENOID ACTUATION, 4 MAIN PORTS, SIZE 10, 24 VDC, W/ MANUAL OVERRIDE, 4WE 10 Q6-3X/CG24N9K4.

part #: r900520945 prices

• $118.15-$500.97

specifications valvesplumbing:

• brand: Rexroth
• mpn: R900520945

offer valvesplumbing:

• sold: 0
• started: April 12, 2026
• quantity: 1
• availability: In Stock
• options: Ship-to-home

shipping valvesplumbing:

• transit: 30-34 Days
• class: Standard
• cost: $12.90
• type: Fixed
• service: Standard

general valvesplumbing:

• Hydraulics, Pneumatics, Pumps Plumbing > Valves Manifolds > Other Valves Manifolds
• condition: Used

seller valvesplumbing:

• rating: 99.6%
• # reviews: 1990 92
• city: 1 Millennium Dr, Willingboro, NJ 08046

returns valvesplumbing:

• method: Money back
• policy: Returns Accepted
• paid by: Buyer
• time: 30 Days

payments valvesplumbing:

• credit card: Discover
• wallet: Paypal
• other

Rexroth R900520945 Is Similar To:

• 00560900 Rexroth Used Throttle Check Valve (32.9% similar) Used Rexroth throttle check valve Z2FS v SO30 b3 s6 BB...(June 14th, 2018)
• 0793106807 Rexroth New Bosch Valve Body Double Solenoid (39.5% similar) New item in retail box. Please through messages. GSR veers 823 gs...(October 12th, 2018)
• 0811004106 Bosch Rexroth New Hydraulic Flow Control Valve Bnib (21.5% similar) I will communicate with you throughout the buying process. This item comes from a 100 smoke-free home. I will reply as soon possible. Please e-mail me with any other questions. You are buying on a brand new flow control valve by bosch. I am also an buyer and want to treat you as like be treated. ...(March 7th, 2018)
• 0811404001 4wrp 10 E63s-1x-g24z4-m Bosch Rexroth Valve (21.2% similar) NICEBRK-126...(May 2nd, 2018)
• 0811404827 Rexroth New Bosch Hydrulic Valve Germany (39% similar) New bosch Rexroth hydraulic proportional directional control valve 4WRPEH10C5B100P-2X G24K0 A1M made in Germany...(June 14th, 2018)
• 3842352088 Rexroth Bosch Structural Aluminum Air Header (39.5% similar) Bosch Rexroth structural aluminum air header...(March 16th, 2018)
• 3842535995 3.842.535.995 3842535995 Rexroth New Bosch (33.3% similar) And 3:00 PO. These are typically larger items...(October 18th, 2017)
• 4we 6 E62-ew110n9da-62 Rexroth Bosch Direct Control Solenoid Valve New (31.7% similar) Some items include stock photos that may show not included. If you don't see an item in the pictures assume its included. If you don't see something assume its included...(August 25th, 2018)
• 4we10g11-lw120-60nav Rexroth Valve Used (37.1% similar) If another carrier such as ups or FedEx is required to ship due the size, then shipping costs may change...(April 20th, 2018)
• 4we10h21-aw110ndav Rexroth Valve Used (38.2% similar) If another carrier such as ups or FedEx is required to ship due the size, then shipping costs may change...(April 20th, 2018)
• 4we6ea62-eg24n9k4 Rexroth Hydraulic Directional Valve Used (33.7% similar) If another carrier such as ups or FedEx is required to ship due the size, then shipping costs may change...(November 11th, 2018)