priced at US$7,071.65
Type:
Hydraulic Pump Parts,Hydraulic Pump Repair Parts Kit,Hydraulic overhaul rebuild kit
Pump NO.:A4VG250
Application:
Specification:
Piston Shoe9 Piston Shoe welded9 Cylinder Block1 Valve Plate R1 Valve Plate L1 Retainer Plate1 Ball Guide1 swash plate1 saddle bearing2 bearing seat2 drive shaft1(T26T27L433.5) drive shaft1(T17T27) drive shaft1(T13T27) Transfer Plate1 ball guide spring4 housing1 slide plate1 coupler2 coupling2 o ring1 socket bolt1(45) socket bolt1(35) shaft seal1 composite bearing1 big bearing1 pintle1 external rotor1 internal rotor1 head block*1 charge pump-A(CLOSE)2 charge pump-B2
Introduction
The Rexroth A4VG250 hydraulic piston pump is a crucial component in various industries such as manufacturing, construction, and heavy equipment. It powers essential machinery and plays a vital role in their operations. To ensure optimal performance and dependability, this advanced engineering marvel requires careful attention and upkeep.
Regular maintenance is not just a suggestion—it’s crucial for safeguarding your investment and maintaining smooth operations. The Rexroth A4VG250 Hydraulic Piston Pump Repair Parts Kit offers a comprehensive solution for servicing and rejuvenating these critical parts. Priced at US$7,071.65, this kit is a strategic investment in the longevity and efficiency of your equipment.
This guide will walk you through:
- Detailed analysis of the A4VG250 hydraulic pump’s features
- Critical components included in the repair kit
- Value proposition and cost considerations
- Application compatibility across industries
- Best practices for sourcing genuine parts
Whether you’re a maintenance professional or facility manager, understanding the intricacies of hydraulic pump maintenance can significantly impact your operation’s efficiency. The right repair kit, combined with proper maintenance protocols, helps prevent costly downtime and extends equipment life.
Let’s explore how this repair parts kit can optimize your hydraulic system’s performance and protect your investment in Rexroth technology.
Understanding the Rexroth A4VG250 Hydraulic Pump
The Rexroth A4VG250 is an advanced hydraulic pump known for its durability and efficiency. It uses a variable displacement axial piston design, which allows it to adjust the amount of fluid it pumps based on the system’s needs. Here are some key specifications:
- Maximum operating pressure: 400 bar
- Displacement volume: 250cc/rev
- Speed range: 1800-3000 rpm
- Volumetric efficiency: Up to 95%
Applications of the A4VG250
The A4VG250 is versatile and can be used in various industries. Here are some common applications:
Construction Equipment
- Excavators
- Wheel loaders
- Concrete pumps
Industrial Machinery
- Metal forming presses
- Injection molding machines
- Mining equipment
Key Features of the A4VG250
Rexroth is known for its engineering excellence, and the A4VG250 has several features that set it apart from other hydraulic pumps:
- Advanced swashplate design for precise flow control
- Integrated pressure relief valves ensuring system protection
- High-strength housing reducing operational noise
- Optimized port design minimizing flow losses
Reliability through Superior Build Quality
The reliability of the A4VG250 comes from its high-quality construction. Here are some aspects of its build quality:
- Hardened steel components
- Precision-matched parts
- Advanced sealing technology
- Self-adjusting wear compensation
These qualities make the A4VG250 a popular choice in various industries, providing consistent performance even in challenging conditions. Its sturdy design also means less maintenance is required while still maintaining high efficiency throughout its lifespan.
For those interested in delving deeper into hydraulic systems, understanding basic hydraulic components can provide valuable insights. Additionally, exploring the mechanical properties of hydraulic pumps could further enhance one’s knowledge in this field. For a comprehensive study on hydraulic pump technology, these resources serve as excellent starting points.
Repair Your A4VG250 Pump Efficiently
Importance of a Repair Parts Kit
Regular maintenance using high-quality repair kits is essential for keeping hydraulic systems running smoothly. The A4VG250 repair kit acts as a preventive measure against unexpected system failures and performance issues, similar to the role of critical spares in optimizing mining operations efficiency.
Critical System Protection
The A4VG250 repair kit offers several important benefits:
- Prevents catastrophic equipment breakdowns
- Maintains consistent operational pressure
- Reduces wear-and-tear on surrounding components
- Preserves fluid cleanliness standards
Cost Impact of Maintenance Neglect
Neglecting maintenance can have significant financial consequences:
- Emergency repairs can cost 3-5 times more than planned maintenance
- Production downtime losses average $5,000-$50,000 per hour
- Reduced equipment lifespan by up to 60%
- Increased energy consumption due to system inefficiencies
Using genuine Rexroth repair parts ensures perfect compatibility with your A4VG250 pump system. These components undergo rigorous quality testing, meeting strict manufacturing tolerances that generic alternatives often miss. The precision-engineered parts maintain the pump’s original performance specifications, protecting your investment and ensuring reliable operation.
Benefits of Genuine Parts
Choosing genuine Rexroth repair parts comes with several advantages:
- Exact dimensional specifications
- Premium material quality
- Extended service intervals
- Full warranty protection
- Certified performance standards
A well-maintained hydraulic system with genuine repair parts operates at peak efficiency, consuming less power while delivering consistent performance. This translates to reduced operational costs and enhanced system reliability across your industrial applications. Such efficiency in operations is not just limited to hydraulic systems but can also be applied in other sectors such as construction, where understanding the guidelines for maintaining construction equipment can lead to significant savings and improved productivity.
Moreover, the impact of poor maintenance extends beyond immediate financial implications. For instance, the GAO report on the effects of maintenance neglect highlights how such oversights can lead to long-term detrimental effects on equipment lifespan and operational efficiency.
In addition to these insights, it’s crucial to recognize the importance of preserving fluid cleanliness standards in hydraulic systems. This aspect is often overlooked but plays a vital role in ensuring optimal performance and longevity of the equipment. The US Bureau of Reclamation’s technical reference document provides valuable information on maintaining fluid cleanliness and its impact on overall system performance.
Restore Your Pump’s Performance
Components Included in the A4VG250 Repair Parts Kit
The Rexroth A4VG250 Hydraulic Piston Pump Repair Parts Kit contains a comprehensive set of precision-engineered components. Here’s a detailed breakdown of the essential parts:
1. Piston Components
- 9 Piston Shoes – Critical wear components that transfer force within the pump
- 9 Welded Piston Shoes – Reinforced versions for enhanced durability and performance
2. Core Structural Elements
- Cylinder Block (1) – The main housing component that contains the rotating group
- Valve Plates (Right and Left) – Direct fluid flow through the pump’s chambers
- Retainer Plate (1) – Secures internal components and maintains proper alignment
3. Operational Components
- Swash Plate (1) – Controls pump displacement and flow direction
- Drive Shaft Variations:
- T26T27L433.5
- T17*T27
- T13*T27
4. Supporting Components
- Saddle Bearings (2) – Enable smooth rotational movement
- Bearing Seats (2) – Provide stable mounting points for bearings
The kit includes additional specialized parts:
- Ball Guide with 4 Springs
- Housing Unit
- Transfer and Slide Plates
- Couplers and Couplings
- Seals and Bearings
- Charge Pump Components
Each component is manufactured to strict tolerances, ensuring perfect fit and optimal performance when installed in your A4VG250 hydraulic pump system.
Detailed Breakdown of Key Components
The Piston Assembly serves as the heart of the A4VG250 pump. Each piston shoe and welded shoe pair work in tandem to create the reciprocating motion essential for fluid displacement. The precision-engineered surfaces maintain optimal contact with the swash plate, reducing wear and ensuring consistent performance.
Critical Core Components:
- The Cylinder Block houses the pistons and maintains proper alignment during operation. Its hardened surface withstands high-pressure conditions while minimizing internal leakage
- Valve Plates (Right and Left) control fluid flow direction through precisely machined ports. The surface finish quality directly impacts volumetric efficiency
- The Swash Plate angle determines pump displacement. Its surface hardness and finishing specifications are crucial for maintaining consistent output
Drive System Elements:
- Multiple Drive Shaft options accommodate different coupling configurations
- Saddle Bearings and Bearing Seats support the drive assembly while maintaining proper shaft alignment
- The Ball Guide system ensures smooth rotational movement
Auxiliary Components:
- Composite and Big Bearings reduce friction and handle radial loads
- Shaft Seals prevent fluid leakage and contamination
- Charge Pumps maintain required inlet pressure for optimal performance
Manufacturing tolerances for these components are typically held to ±0.001 inches. Surface finish requirements range from 2-16 microinches, ensuring proper sealing and minimal wear during operation. Each component undergoes strict quality control measures, including material composition testing and dimensional verification.
Cost Analysis and Value Proposition
The US$7,071.65 investment in the Rexroth A4VG250 Repair Parts Kit represents significant value when analyzed against the potential costs of hydraulic system failures. Here’s a detailed breakdown of the cost considerations:
Material Quality Investment
- Premium-grade steel components
- Precision-engineered parts with tight tolerances
- Heat-treated and surface-hardened materials
- Factory-certified manufacturing processes
Cost Comparison: Repair Kit vs. System Failure
Direct Financial Impact of Pump Failure:
- Emergency repair costs: $15,000 – $25,000
- Production downtime: $5,000 – $10,000 per hour
- Rush delivery fees for replacement parts
- Additional labor costs for unplanned maintenance
Hidden Costs of Inadequate Maintenance:
- Reduced equipment lifespan
- Decreased operational efficiency
- Higher energy consumption
- Increased risk of secondary system damage
The repair kit’s price point becomes particularly attractive when considering that a single catastrophic pump failure can cost 3-5 times more than the kit itself. Regular maintenance using genuine parts helps maintain optimal performance levels and prevents unexpected breakdowns that could result in substantial financial losses.
ROI Considerations
- Extended equipment life expectancy
- Predictable maintenance schedules
- Reduced risk of emergency repairs
- Protection of connected hydraulic components
- Maintained system efficiency ratings
Application Compatibility & Guide for Rexroth A4VG Series Pumps
The Rexroth A4VG250 Hydraulic Piston Pump is highly versatile and can be used in various industries. Here’s a detailed overview of its main applications and compatibility features:
Key Industrial Applications:
- Construction Equipment: Excavators, wheel loaders, and mobile cranes
- Mining Machinery: Underground mining vehicles and surface mining equipment
- Agricultural Equipment: Harvesters and specialized farming machinery
- Material Handling: Forklifts and automated guided vehicles
- Marine Applications: Deck machinery and propulsion systems
Series Compatibility Guide:
The A4VG250 repair kit is compatible with several variants in the A4VG series, including:
- A4VG250EP – Enhanced pressure variant
- A4VG250HD – Heavy-duty version
- A4VG250DA – Direct drive application model
Operating Parameters:
- Nominal pressure range: Up to 400 bar
- Maximum pressure: 450 bar
- Speed range: 1800-3000 rpm
- Displacement: 250cc/rev
The design of the A4VG250 enables easy integration with existing hydraulic systems using standard SAE mounting patterns. This compatibility applies to both open and closed circuit applications, making it suitable for retrofitting older equipment or implementing new hydraulic solutions.
Users can identify compatible variants by checking the model code stamped on the pump’s nameplate. The components of the repair kit are designed to match the specific requirements of each variant within the A4VG250 series.
Purchasing Considerations for the Rexroth A4VG250 Repair Parts Kit
Sourcing genuine Rexroth A4VG250 repair kits requires careful evaluation of potential suppliers. Here’s what you need to consider when making your purchase:
Supplier Verification
- Check for authorized Rexroth distributorship status
- Look for ISO 9001:2015 certification
- Verify the supplier’s track record in hydraulic component distribution
- Research customer reviews and testimonials
Quality Assurance Indicators
- Request documentation of quality control processes
- Ask for component traceability records
- Verify warranty terms and conditions
- Check for batch testing certificates
Support Services
- Technical support availability
- Installation guidance
- Post-sale maintenance assistance
- Emergency replacement services
Red Flags to Watch For
- Prices significantly below market average
- Lack of proper documentation
- Reluctance to provide quality certificates
- Limited or no warranty coverage
You should request detailed component specifications and cross-reference them with official Rexroth documentation. Reliable suppliers maintain comprehensive inventory records and can provide immediate information about stock availability and shipping timeframes.
The supplier’s expertise in hydraulic systems should extend beyond mere sales – look for those offering technical consultation and maintaining relationships with manufacturers. This ensures you receive accurate guidance for your specific application needs.
Conclusion
Regular maintenance with high-quality repair kits is essential for effective hydraulic system management. The Rexroth A4VG250 Repair Parts Kit is a strategic investment in your equipment’s future, protecting against unexpected failures and minimizing costly downtime.
Proper maintenance practices combined with genuine repair components create a strong defense against:
- Premature system deterioration
- Performance degradation
- Unexpected equipment failures
- Increased operational costs
The connection between maintenance kits and hydraulic system longevity is clear – proactively replacing worn components keeps performance at its best. Users who follow scheduled maintenance programs with top-notch repair kits see:
- Longer equipment lifespan
- Steady operational efficiency
- Lower emergency repair costs
- More reliable systems
The A4VG250 repair kit includes all the necessary parts to address critical wear points, ensuring your hydraulic system performs at its best throughout its service life. This investment in quality parts and preventive maintenance practices protects your operation’s productivity and equipment reliability.
Frequently Asked Questions
Q: How often should I replace the repair parts in my A4VG250 pump?
A: The replacement interval depends on operating conditions and usage intensity. Regular inspections every 2,000-3,000 operating hours help identify wear patterns. It’s similar to how often you should give your vehicle a complete tune-up, which includes checking and replacing various components. Replace components when you notice decreased performance or unusual noise.
Q: Can I purchase individual components instead of the complete kit?
A: Yes, individual components are available for purchase. However, the complete kit offers better value and ensures all parts match perfectly. Mixing new and old components might lead to compatibility issues.
Q: Is installation of the repair kit a DIY job?
A: Professional installation is strongly recommended. The A4VG250 pump requires precise assembly and specialized tools, much like the work done in professional repair facilities. Incorrect installation can damage components and void warranties.
Q: What’s the warranty period for the repair kit?
A: The standard warranty covers manufacturing defects for 12 months from the date of purchase. Keep your purchase documentation and work with authorized dealers.
Q: Are these parts compatible with other A4VG series pumps?
A: The repair kit is specifically designed for the A4VG250 model. Using these components in other models can cause serious damage to your equipment.
Q: How can I verify the authenticity of the repair kit?
A: Look for:
- Rexroth’s official packaging
- Unique serial numbers
- Holographic security labels
- Purchase through authorized distributors
Q: What signs indicate I need to use the repair kit?
A: Watch for:
- Decreased pump efficiency
- Unusual noise during operation
- Excessive heat generation
- Fluid leakage
- Inconsistent pressure output
Q: How long does a typical repair take using this kit?
A: A professional technician typically needs 4-6 hours for a complete overhaul. This includes disassembly, cleaning, parts replacement, and testing.
FAQs (Frequently Asked Questions)
What is the Rexroth A4VG250 hydraulic piston pump?
The Rexroth A4VG250 hydraulic piston pump is a highly efficient and reliable hydraulic pump widely used in various industrial applications. It is known for its robust design and capability to maintain optimal performance under demanding conditions.
Why is regular maintenance important for hydraulic pumps?
Regular maintenance is crucial for hydraulic pumps as it helps prevent costly downtime and equipment failures. Utilizing repair parts kits contributes significantly to the longevity and efficiency of the pump, ensuring that it operates smoothly over time.
What components are included in the A4VG250 Repair Parts Kit?
The A4VG250 Repair Parts Kit includes essential components such as Piston Shoes, Cylinder Block, Valve Plates, Swash Plate, Drive Shaft Variations, Saddle Bearings, and Bearing Seats. Each component plays a vital role in maintaining the proper functioning of the pump.
How does the quality of repair parts affect pump performance?
The quality of repair parts directly impacts the performance of the A4VG250 pump. High manufacturing standards ensure that even minor defects are avoided, preventing severe operational issues that could arise from using inferior components.
What are the cost implications of neglecting pump maintenance?
Neglecting regular pump maintenance can lead to significant cost implications, including potential equipment failures and expensive repairs or replacements. Investing in a repair parts kit is often more cost-effective compared to the expenses incurred from prolonged downtimes.
Where can I purchase genuine A4VG250 repair kits?
Genuine A4VG250 repair kits can be sourced from reputable suppliers who specialize in hydraulic components. When selecting a supplier, consider their quality assurance measures and customer service support to ensure you receive reliable products.