CASAPPA

CASAPPA Cast Iron High-pressure Gear Pumps KP20.16-LGE/GD/20.14-LGE/GDD/ KP35 KP20 KP40 PHL20 PLM20 Hydraulic Gear Pumps

HENGYUHANG gear pump s a high-pressure cast iron external gear pump designed as a replacement for CASAPPA Cast Iron High-pressure Gear Pumps KP20.16-LGE/GD and KP20.14-LGE/GDD. It features stable flow, high pressure capability and durable construction, solving reliability issues in heavy-duty hydraulic systems. It is widely used in construction machinery, agricultural equipment and industrial hydraulic applications.

Description

CASAPPA Cast Iron High-pressure Gear Pumps KP20 / KP35 / KP40 Series

Features, Specifications, Applications and Brand Comparison

Introduction

CASAPPA gear pumps are cast iron high-pressure external gear pumps widely used in mobile and industrial hydraulic systems. The KP20.16-LGE/GD, KP20.14-LGE/GDD, KP20, KP35 and KP40 series are designed for applications requiring high pressure capability, stable flow and long service life. This article introduces the main functions and parameters of CASAPPA gear pumps, their typical application industries, the advantages and limitations of CASAPPA as a brand, and explains the benefits of choosing Rexroth gear pumps as an alternative solution.


Key Features and Technical Specifications of CASAPPA Gear Pumps

Cast Iron Housing and High Pressure Capability

CASAPPA KP series gear pumps use a robust cast iron housing design, providing excellent mechanical strength and resistance to deformation under continuous high pressure operation. This structure allows CASAPPA gear pumps to perform reliably in harsh working conditions.

  • Continuous working pressure typically up to 280 bar, with peak pressure reaching approximately 330 bar

  • Displacement range covering small to large flows, from around 5 cm³/rev up to more than 125 cm³/rev in the KP40 series

  • Maximum operating speed up to 4000 rpm depending on model and working conditions

Hydraulic Performance and Efficiency

CASAPPA gear pumps are designed to deliver stable flow output with good volumetric efficiency across a wide speed range. Optimized gear profiles and bearing arrangements help reduce internal leakage and noise.

Key performance characteristics include:

  • Stable flow under variable load conditions

  • Good efficiency for mobile and industrial hydraulic systems

  • Low noise level compared with conventional external gear pumps

  • Good resistance to pressure shocks and load fluctuations

Installation and Configuration Flexibility

The KP20, KP35 and KP40 series offer multiple mounting flanges, shaft types and port configurations. This flexibility allows CASAPPA gear pumps to be easily integrated into existing hydraulic systems without major redesign.


Typical Application Industries

Due to their high pressure capability and durable construction, CASAPPA gear pumps are widely used in the following industries:

  • Construction machinery such as loaders, compact excavators and road equipment

  • Agricultural machinery including tractors, harvesters and balers

  • Material handling equipment such as forklifts and aerial work platforms

  • Industrial hydraulic power units and manufacturing machinery

  • Special vehicles including sweepers, concrete mixers and forestry equipment

These applications benefit from the compact size, reliable performance and long service life of CASAPPA gear pumps.


Advantages of CASAPPA Gear Pumps

CASAPPA gear pumps are well known in the hydraulic market for several important strengths.

First, the cast iron housing provides strong mechanical rigidity, allowing CASAPPA gear pumps to operate under high pressure and heavy load conditions for long periods.

Second, the wide displacement range of the KP20, KP35 and KP40 series makes CASAPPA gear pumps suitable for many different system flow requirements, from compact mobile machines to large hydraulic systems.

Third, CASAPPA gear pumps offer good compatibility with international standards. Multiple shaft types, flanges and port options allow easy replacement of other brands in many applications.

Finally, CASAPPA gear pumps deliver stable and efficient performance, making them a cost-effective solution for systems that require reliability rather than extremely high precision control.


Limitations of CASAPPA Gear Pumps

Despite their strong performance, CASAPPA gear pumps also have some limitations that should be considered.

In some regions, the availability of local service support and spare parts may be more limited compared with global brands that have a larger service network.

As external gear pumps, CASAPPA gear pumps may not achieve the same level of efficiency, noise reduction or flow control accuracy as high-end piston or vane pump solutions in very demanding industrial applications.

For systems requiring advanced functions such as load sensing, electronic control or integrated valves, additional hydraulic components may be required when using CASAPPA gear pumps.


Benefits of Choosing Rexroth Gear Pumps

Many customers consider Rexroth gear pumps as an alternative or upgrade option, especially for applications with higher system complexity.

Rexroth gear pumps benefit from strong global brand recognition and a wide international service and distribution network, making spare parts and technical support easier to access worldwide.

Rexroth offers a very broad hydraulic portfolio, including gear pumps, vane pumps and piston pumps. This allows system designers to select optimized solutions across different pressure and control requirements.

Rexroth gear pumps are often selected for applications that demand high consistency, tight manufacturing tolerances and long-term operational reliability, particularly in industrial automation and high-end mobile machinery.

In addition, Rexroth hydraulic products are often designed for easy integration with valves, sensors and electronic control systems, providing more complete hydraulic solutions.


Conclusion

The CASAPPA cast iron high-pressure gear pumps, including the KP20, KP35 and KP40 series, provide reliable performance, high pressure capability and flexible installation for a wide range of hydraulic applications. CASAPPA gear pumps are well suited for construction machinery, agricultural equipment, material handling and industrial hydraulic systems. However, for projects requiring global service coverage, advanced system integration or higher precision, Rexroth gear pumps may offer additional advantages.



HENGYUHANG Company  is a set design, production, sales in one of the hydraulic components production company, the company has advanced hydraulic components manufacturing technology and technology, the use of high-precision equipment CNC machining center, gear hot processing automatic production line, , automatic heat treatment multi-purpose furnace, single-piece flow assembly line, automatic hydraulic pump performance test bench. Intelligent equipment adopts automatic unmanned production, and realizes online measurement to ensure product consistency and reliability, intelligent system uses ERP, MES management software, improve production efficiency, and achieve product traceability.

Hengyuhang Power Technology produces and sells external gear pumps, hydraulic synchronous motors, multi-pump units, gear pumps with built-in valves, and custom valve blocks. Meanwhile, according to the specific needs of customers, we provide a variety of products with special specifications.And it can also be used as a substitute for other products (such as Rexlex, Danfoss, MARZOCCHI, Parker, RONZIO, Atos, Buchet, ECKERLE, CONCENTRIC, HYADC, JIHOSTROJ, Hydraulic, SDH, VIVOLO, ARGO-HYTOS, HESPER,   HPLPA, HPI, DUPLOMATIC, ROQUET, BODEN,PERMCOP, Caproni, DUPLOMATIC, HIDRAULICA, SETTIMA, SALAMI, HONOR, SHIMADZU, GRH, Brevini, Galtech, BONDIOLI, REXROTH-SIGMA, BLUEASCEND, RISUNY, SUMITOMO, HYDROMAX, SCENERY, REXPOWER, CML, HOERBIGER, SUNNY, HYTEK, Hydro-pack, )

HENGYUHANG also sells a wide range of other international brands of hydraulic pumps, hydraulic valves, hydraulic motors, hydraulic cylinders, hydraulic oil seals, hydraulic equipment and accessories, and has high-quality overseas ordering channels

HENGYUHANG products are mainly used in the supporting services of industries such as automobiles, construction machinery, agricultural machinery, aerial work platforms, hydraulic systems, logistics handling vehicles, new energy vehicles, metallurgical machinery, petroleum machinery, machine tools, and wind power


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