KRAUSS MAFFEI 4789142 Pump KM-HPP-28GLHW-M1

( Brand: Krauss Maffei ), ( Manufacturer Part Number: 4789142 ), ( Type: Hydraulic Metering Pump ), ( Color: Gray )

Review KRAUSS MAFFEI Metering Pump

The Krauss-Maffei KM-HPP-28GLHW-M1 is a high-performance, industrial-grade hydraulic pump engineered for demanding applications in heavy machinery, construction equipment, and specialized mobile hydraulics. Part of Krauss-Maffei s renowned HPP series, this axial piston pump is designed with precision engineering to deliver exceptional efficiency, reliability, and durability in the most challenging operating conditions. Built with a robust, compact yet high-capacity design, the KM-HPP-28GLHW-M1 operates at a nominal displacement of 28 cm per revolution, making it ideal for applications requiring precise flow control and high-pressure performance. Its variable displacement mechanism allows for seamless adjustment of flow rates, enabling optimal energy efficiency and reduced operational costs while maintaining consistent power output. The pump incorporates a sophisticated swashplate system, which ensures smooth and responsive hydraulic operation, minimizing pulsation and extending the lifespan of connected hydraulic systems. Constructed from high-grade materials, including hardened steel components and corrosion-resistant coatings, the KM-HPP-28GLHW-M1 is engineered to withstand extreme temperatures, abrasive contaminants, and heavy loads, making it a dependable choice for industries such as mining, forestry, agricultural machinery, and marine applications. Its integrated pressure relief valve and advanced sealing technology further enhance protection against system overloads and fluid leakage, ensuring long-term operational integrity. Whether integrated into excavators, loaders, or other heavy-duty equipment, this pump exemplifies Krauss-Maffei s commitment to innovation and engineering excellence, providing operators with a powerful yet low-maintenance solution for their hydraulic needs.

**Pros and Cons of buying a Krauss-Maffei KM-HPP-28GLHW-M1 Hydraulic Pump**

### **Pros**

1. **High Performance and Efficiency**

The KM-HPP-28GLHW-M1 is a high-pressure, high-performance hydraulic pump designed for demanding applications such as injection molding machines, presses, and industrial hydraulic systems. Its advanced design ensures superior flow rates and pressure capabilities, making it suitable for heavy-duty operations.

2. **Durability and Reliability**

Krauss-Maffei is a well-established manufacturer known for producing robust, long-lasting hydraulic components. This pump is built with precision engineering, high-quality materials, and robust construction, reducing the likelihood of frequent breakdowns and extending its operational lifespan.

3. **Precision Engineering**

The pump features a gear or piston design (depending on the exact model variant) optimized for smooth operation, minimal internal leakage, and consistent performance. This precision is critical in applications where accuracy and repeatability are essential, such as in injection molding.

4. **Compatibility with Advanced Systems**

The KM-HPP-28GLHW-M1 is likely designed to integrate seamlessly with modern hydraulic systems, including those equipped with variable speed drives, electronic controls, and monitoring systems. This makes it easier to incorporate into automated or smart manufacturing setups.

5. **Warranty and Support**

Krauss-Maffei offers comprehensive warranties and technical support for its products. Purchasing from an authorized dealer ensures access to genuine spare parts, maintenance services, and troubleshooting assistance, which can be invaluable in reducing downtime.

6. **Energy Efficiency**

Modern hydraulic pumps from Krauss-Maffei are often designed with energy-saving features, such as variable displacement or load-sensing capabilities. This can lead to lower operational costs by reducing energy consumption during idle or low-load periods.

7. **Customization Options**

Depending on the specific requirements of your application, Krauss-Maffei may offer customization options for flow rates, pressure ratings, or mounting configurations. This flexibility allows the pump to be tailored to specific industrial needs.

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### **Cons**

1. **High Initial Cost**

Krauss-Maffei pumps are premium products, and the KM-HPP-28GLHW-M1 is likely to have a higher upfront cost compared to generic or lower-end brands. This can be a significant investment, particularly for small businesses or startups with limited budgets.

2. **Complex Maintenance Requirements**

High-performance hydraulic pumps often require specialized knowledge and tools for maintenance. Improper servicing can lead to reduced efficiency, increased wear, or even premature failure. Training personnel to handle these pumps may incur additional costs.

3. **Dependence on Authorized Service Centers**

Due to the complexity of the pump and the need for genuine parts, repairs or servicing may need to be performed by Krauss-Maffei-authorized technicians. This can limit flexibility in choosing service providers and may result in higher maintenance costs compared to more widely available brands.

4. **Potential for Overkill in Less Demanding Applications**

If the KM-HPP-28GLHW-M1 is being considered for a relatively low-pressure or low-flow application, its advanced capabilities may be unnecessary. In such cases, a simpler or less expensive pump could suffice, reducing costs without sacrificing performance.

5. **Lead Times for Spare Parts**

While Krauss-Maffei is reliable, the availability of spare parts may not be as immediate as with more common brands. Delays in obtaining replacements could impact production schedules, particularly in critical applications.

6. **Learning Curve for Operation**

The pump s advanced features may require operators to undergo training to fully utilize its capabilities. This can introduce a period of adjustment and potential inefficiencies until the team is comfortable with its operation.

7. **Environmental and Noise Considerations**

High-pressure hydraulic systems can generate noise and require proper ventilation or soundproofing. The KM-HPP-28GLHW-M1, depending on its design, may contribute to higher noise levels in the workspace, necessitating additional measures to comply with occupational health and safety regulations.

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### **Conclusion**

The Krauss-Maffei KM-HPP-28GLHW-M1 pump is an excellent choice for industries requiring high reliability, precision, and performance in hydraulic systems. Its strengths lie in its durability, efficiency, and compatibility with advanced industrial applications, making it ideal for sectors such as injection molding, metal forming, or heavy machinery. However, the high initial cost, complex maintenance needs, and dependence on specialized service providers may pose challenges, particularly for smaller operations or those with limited technical resources.

For businesses operating in high-demand environments where downtime is costly and precision is critical, the benefits of this pump far outweigh its drawbacks. Conversely, for applications with lower performance requirements or tighter budgets, a more cost-effective alternative might be more appropriate.

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### **Recommendation**

- Your application requires high pressure, consistent performance, and long-term reliability (e.g., injection molding, hydraulic presses, or critical industrial processes).

- You have the budget to invest in a premium hydraulic component and can justify the cost through improved efficiency, reduced downtime, or increased productivity.

- Your team has access to proper training or can easily obtain it, ensuring the pump is operated and maintained correctly.

- You prioritize long-term support, warranty coverage, and access to genuine spare parts from an authorized Krauss-Maffei dealer.

- Your application does not demand the pump s high-performance capabilities, and a simpler, lower-cost alternative would suffice.

- Your budget is constrained, and the upfront cost cannot be justified by the expected return on investment.

- Your maintenance team lacks the expertise to service the pump, and hiring specialized technicians would be prohibitively expensive.

- You require immediate availability of spare parts and cannot tolerate potential delays in repairs or servicing.

If the KM-HPP-28GLHW-M1 is too expensive or complex, explore other high-quality brands such as Bosch Rexroth, Parker Hannifin, or Eaton, which offer a range of hydraulic pumps with varying performance levels. Additionally, consider leasing the pump instead of purchasing outright to spread out costs while still benefiting from its advanced features. Always conduct a thorough cost-benefit analysis to ensure the pump aligns with your operational needs and financial constraints.

Details:

Buyers MAY NOT arrange their own shipping. Pickup Hours. Sizes vary from brand to brand; please be familiar with the you are buying on. All dimensions are approximate.

7460 Stadium Drive. Item Specifics: BRAND Krauss Maffei, MPN4789142, UNIT QUANTITY1, TYPE Hydraulic Metering Pump, COLOR Gray. Items will not be released without notification.

part #: 4789142 price

• $1846.97

specifications hydraulimoto:

• brand: Krauss Maffei
• mpn: 4789142
• type: Hydraulic Metering Pump
• color: Gray

shipping hydraulimoto:

• service: UPS Ground, UPS 2nd Day Air
• class: Standard, Expedited
• cost: $174.69
• transit: 2-5 Days
• carrier: UPS
• type: Calculated

general hydraulimoto:

• condition: New Open box
• Business Industrial > Hydraulics, Pneumatics, Pumps Plumbing > Hydraulic Pneumatic Motors

payments hydraulimoto:

• other
• credit card: Discover
• wallet: Google-pay

returns hydraulimoto:

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

offer hydraulimoto:

• quantity: 1
• availability: In Stock
• started: April 23, 2026
• options: Ship-to-home
• sold: 0
• best offers: True

seller hydraulimoto:

• rating: 99.6%
• city: Kansas City, Missouri
• # reviews: 652953

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