The Casappa KP30.22-ABK9-LMD/MB-KSL/GS/30.22 is a precision-engineered double gear pump from the renowned KAPPA series,embodying a design philosophy centered on maximizing power density and functionality in confined spaces.This model is a quintessential compact hydraulic pump,specifically engineered to provide two independent pumping functions from a single,unified housing.By integrating two gear pump stages into one compact assembly,it delivers reliable performance for complex mobile and industrial hydraulic systems where space is at a premium.Its design focuses on reducing the size of critical components like the drive shaft,mounting flange,and ports,ensuring exceptional adaptability to modern machinery layouts without compromising on power or efficiency.

　　1.Product Overview and System Integration

　　This double gear pump operates on the fundamental principle of external gear pump mechanics,but its core innovation lies in its dual-stage architecture.Two separate sets of gears—each comprising a driving and a driven gear—operate within a common pump body or closely coupled sections,driven by a single input shaft.This allows the pump to supply hydraulic fluid to two independent circuits or combine flows for higher volume from a single power source.The compact hydraulic pump design is achieved through meticulous component engineering and a stacked configuration,which minimizes the overall footprint.It is designed for direct mounting to various prime movers,such as electric motors or internal combustion engines,facilitating straightforward integration into existing power transmission systems.

　　As part of Casappa's KAPPA family,this pump is built to meet the demanding requirements of open-circuit hydraulic systems.The"double"configuration is particularly advantageous for applications requiring multiple hydraulic functions—such as implementing a high-flow,low-pressure function alongside a low-flow,high-pressure function—from a single power take-off point,thereby simplifying the overall machine design.

　　2.Technical Specifications and Performance Data

　　The KP30.22-ABK9-LMD/MB-KSL/GS/30.22 is defined by a set of robust performance parameters that make it suitable for a wide range of medium-duty applications.The pump falls within a displacement range that includes 30.22 cm³/rev,providing substantial flow output for its compact dimensions.

　　A key performance metric is its capability to handle peak pressures up to 325 bar(approximately 4700 psi),indicating its suitability for high-pressure hydraulic operations.The pump is also rated for a peak rotational speed of 3500 min⁻¹,allowing it to be paired with high-speed motors for maximum flow output.This combination of high pressure and high-speed capability ensures that this compact hydraulic pump can deliver the necessary hydraulic power for demanding tasks like tool actuation,cylinder movement,and motor drives.

　　The pump is constructed with a cast iron body,ensuring durability and resistance to the harsh conditions typical of construction,agriculture,and material handling equipment.Its design emphasizes not only performance but also longevity and consistent operation under variable loads.

　　3.Core Design Features and Material Construction

　　Optimized Mechanical Architecture for Space Saving

　　The most prominent feature of this double gear pump is its incredibly compact structure.Casappa's engineers have successfully minimized the size of the drive shaft,mounting flange,and hydraulic ports while maintaining high performance.This optimization allows the pump to be installed in tight engine compartments or within complex machinery where space is a critical constraint.The"two-section"design means that two separate pumping elements are housed efficiently,reducing the number of external components and potential leak points compared to using two separate single pumps.

　　Advanced Material Selection for Durability

　　The use of cast iron for the pump body is a strategic choice that provides superior strength and wear resistance compared to aluminum alloys in certain environments.This material offers excellent dimensional stability under high pressure and thermal stress,contributing to the pump's long service life and reliability.The internal gears and shafts are typically manufactured from high-grade steels,precision-hardened and ground to minimize internal leakage and maintain high volumetric efficiency over time.This robust material composition makes the pump resilient and capable of handling various hydraulic fluids with different viscosity indexes.

　　Enhanced Sealing and Bearing Systems

　　To complement its high-pressure rating,the pump incorporates advanced sealing solutions that prevent external leakage and protect the internal components from contaminant ingress.The bearing system is designed to support significant radial loads from the dual gear sets,ensuring smooth rotation and alignment even under uneven load conditions from the two separate pumping sections.This contributes to the pump's low noise emission and extends its operational lifespan.

　　4.Primary Application Areas and Industry Solutions

　　The Casappa KP30.22 double gear pump finds its niche in applications where hydraulic system complexity meets space limitations.Its ability to power two circuits from one unit makes it ideal for mobile machinery such as compact tractors,skid-steer loaders,and aerial work platforms.In these machines,one pump section might be dedicated to the vehicle's propulsion system while the other powers auxiliary attachments like grapples,augers,or lifts.

　　In the industrial sector,this compact hydraulic pump is well-suited for machine tools,automated production lines,and plastic injection molding machines,where it can serve multiple clamping or actuation circuits.The double-pump configuration allows for more efficient energy use,as one section can be set to a standby mode or lower pressure setting when not needed,reducing overall system heat and power consumption.

　　Furthermore,the pump's compactness and high-power density make it an excellent choice for applications in material handling equipment like forklifts and stackers,where the hydraulic system must be powerful yet unobtrusive.Its robust construction also makes it a reliable component in the agricultural sector for seeders,sprayers,and harvesters,where reliability and space optimization are paramount.

　　5.Operational Advantages and Economic Benefits

　　Maximized Power Density and System Simplification

　　The primary advantage of the KP30.22-ABK9-LMD/MB-KSL/GS/30.22 is its exceptional power-to-size ratio.By integrating two pump stages into a single unit with a reduced footprint,it allows machine designers to create more compact and lightweight equipment without sacrificing hydraulic performance.This integration also simplifies the overall hydraulic system layout by reducing the need for multiple pump mounts,drive shafts,and associated hardware,leading to a more streamlined and cost-effective design.

　　Improved Energy Efficiency and Versatility

　　As a double gear pump,it offers unique energy-saving possibilities.System designers can configure the two pump sections for different duties—for instance,one for high-volume,low-pressure tasks and the other for low-volume,high-pressure tasks.This specialization allows each section to operate closer to its optimal efficiency point for its designated function,reducing overall energy waste compared to a single large pump servicing all functions.The versatility of having two independent pumping sources from a single drive point provides immense flexibility in circuit design.

　　Reduced Lifecycle Costs and Enhanced Reliability

　　The pump's cast iron construction and precision-machined internal components contribute to extended service life and reduced maintenance requirements.The inherent durability translates to lower total cost of ownership through decreased downtime and fewer component replacements.Furthermore,by consolidating two pumping functions into one reliable unit,the number of potential failure points in the hydraulic system is reduced,enhancing overall system reliability and uptime.

　　Frequently Asked Questions(FAQs)

　　What is the fundamental operational principle behind a double gear pump like the KP30.22?

　　A double gear pump integrates two separate pumping mechanisms,each consisting of a pair of meshing gears,within a single housing or coupled assembly,driven by a common input shaft.As the gears rotate,fluid is trapped between the gear teeth and the pump housing,transported from the inlet to the outlet side.In a double configuration,this action occurs in two distinct stages,allowing the pump to supply two separate hydraulic circuits or combine its output for a single high-flow circuit,all from one compact unit.

　　How does the compact design of this pump benefit mobile machinery applications?

　　The compact design is crucial for mobile machinery where engine compartment space is extremely limited.By reducing the size of the drive shaft,mounting flange,and ports,this pump can be fitted into tight spaces while still delivering the performance of a larger unit.This allows OEMs to design smaller,more agile machines or to free up space for other critical components,ultimately leading to more innovative and efficient equipment designs for construction,agriculture,and material handling.

　　What are the key differences between a standard single gear pump and this double gear pump?

　　The most significant difference is functional density.A standard single gear pump provides one source of flow from one set of gears.A double gear pump provides two independent or combined flow sources from two sets of gears in a single package.This eliminates the need for and space required by a second pump,a second mounting arrangement,and a second drive connection.It simplifies the system design while adding functional capability,making it ideal for powering multiple actuators or implementing flow-division strategies.

　　Can the two sections of this double pump be used for different pressure settings?

　　Yes,one of the primary advantages of a double gear pump is the ability to operate the two sections at different pressures,serving different functions within the same hydraulic system.For example,one section could be dedicated to a high-pressure function like tool actuation,while the other serves a high-volume function like cylinder extension.It is crucial,however,that the pressure settings for each section are managed by external valves and that the pump's input shaft and bearing systems are rated for the combined loads imposed by both sections.

　　What maintenance practices are recommended for ensuring the long service life of this pump?

　　The most critical maintenance practice is ensuring the use of clean,properly specified hydraulic fluid and maintaining an effective filtration system,as contamination is the leading cause of gear pump wear.Regularly monitoring and replacing hydraulic filters is paramount.It is also important to check for unusual noise,elevated operating temperatures,or external leaks,which can indicate wear or internal damage.Ensuring that the pump is not subjected to sustained pressure above its rated capacity or cavitation due to restricted inlet conditions will also significantly extend its service life.