CASAPPA

CASAPPA Gear pump KP40.121S0-34S8-LMF/ME-N-CSC

Casappa KP50.51D0-06S8-LME-OF-N-CSC Hydraulic Gear Pump KP40.121S0-34S8-LMF/ME-N-CSC Hydraulics Pump KP30.38/KP30.19/KP30.34 Oil Pumps

HENGYUHANG cast iron gear pumps, non-standard customized alternatives, CASAPPA hydraulic pumps KP30, KP20, KP35, KP40 oil pumps

Typical Applications

● Mobile Machinery: Agricultural equipment (tractors, balers, sprayers), construction machinery (small excavators, loaders, rollers), and material handling equipment.

● Industrial Machinery: Machine tools, presses, conveyor systems, and plastic injection molding machines.

● Special Vehicles: Municipal vehicles, aerial work platforms (AWPs), and cleaning vehicles.

●Tractors: One circuit for steering, the other for implement lifting.

●Construction Machinery: One for tool actuation, the other for drive or swing functions.

●Material Handlers: One for boom functions, another for attachment functions

Summary Table of Features

FeatureDescriptionBenefit
ConstructionHeavy-duty cast iron bodyExtreme durability and resistance to high pressure deformation
Pressure250 bar continuous, 280 bar peakHandles the most demanding work cycles and shock loads
FlowLarge displacements (e.g., 40 to 125+ cm³/rev)Delivers very high flow rates for powerful, fast-acting cylinders and motors
Bearing SystemOptions for standard to heavy-duty bearingsManages high radial loads for exceptional service life
Shaft OptionsParallel key and large splined shaftsTransmits high input torque from powerful prime movers
ConfigurationSingle, Tandem, and "S0" PTO flangeUltimate flexibility for complex hydraulic systems
EfficiencyHigh volumetric and overall efficiencySaves energy and reduces heat generation in the system
ApplicationDesigned for flooded inlet, harsh environmentsReliability in the most demanding


Description

Key Features of the CASAPPA KP40 Gear Pump

1. Robust Construction and High Power Density

  • Heavy-Duty Frame: The KP40 features a large, high-strength cast iron body, providing exceptional rigidity and resistance to deformation under high pressure loads.

  • High Power Density: Despite its large flow capacity, the pump is designed to be compact relative to its power output, saving valuable space in large machinery.

2. High Pressure Capability

  • Maximum Operating Pressure: Up to 250 bar (3,625 psi) for continuous operation.

  • Peak Pressure: Can handle up to 280 bar (4,060 psi) for short durations, providing resilience against shock loads common in heavy equipment.

3. Very High Flow Capacity

  • Large Displacement Range: The KP40 series is available in a wide range of large displacements, typically from approximately 40 cm³/rev up to 125 cm³/rev or more. This makes it suitable for applications requiring very high flow rates at moderate shaft speeds.

  • Example: A KP40.121 pump delivers a theoretical flow of over 180 L/min at 1500 rpm.

4. Advanced Bearing and Load Management

  • Designed for High Radial Loads: A standout feature is its bearing system. Options range from standard bearings to heavy-duty ("F" type) and modified ("D" type) bearings. These are specifically designed to handle the exceptionally high radial forces generated by the large gears and high pressures, ensuring long service life.

  • Optimized Gear Design: The gears are precision machined and finished to ensure smooth meshing, minimize internal stress, and reduce wear.

5. Shaft and Sealing Options

  • High-Torque Shafts: Available with various shaft types (e.g., parallel key, splined - including large splines like 34-tooth) to connect to and transmit the high torque from powerful engines or motors.

  • Shaft Seal Options: Offered with standard lip seals (for mineral oil) or special seals like Viton® (FKM) for compatibility with extreme temperatures or alternative fluids like HFA/HFC.

6. Configuration Flexibility

  • Single and Tandem Pumps: The KP40 can be supplied as a single pump or as a tandem configuration (e.g., KP40.50-50S3...), where two pumping elements are combined in one housing to drive separate circuits from a single power source.

  • Power Take-Off (PTO) "S0" Flange: A critical feature for complex machinery. The "S0" option means the pump body is engineered to have a CASAPPA gear motor (e.g., KM series) flange-mounted directly to it. This creates an integrated "pump-plus-motor" unit to drive auxiliary functions like cooling fans.

7. Porting and Mounting

  • Standardized Ports: Features large SAE flanged ports (e.g., SAE E and larger) to accommodate the high flow rates with minimal pressure drop.

  • SAE Mounting: Uses standard SAE mounting patterns (e.g., SAE E) for easy and secure mounting to transmission cases, dividers, or other pumps.

8. High Efficiency

  • Volumetric Efficiency: Maintains high volumetric efficiency (~92-96%) across its pressure range due to precise manufacturing tolerances, ensuring most of the theoretical flow is delivered to the system.

  • Overall Efficiency: High overall efficiency reduces power loss (as heat) and lowers fuel consumption on diesel-powered machines.

9. Application-Oriented Design

  • Flooded Inlet Recommended: Due to its high flow capacity, a flooded inlet (where the oil level is above the pump inlet) is highly recommended to prevent cavitation and ensure optimal performance.

  • Designed for Harsh Environments: The robust construction makes it suitable for agriculture, construction, and mining applications where exposure to shock loads, contamination, and variable temperatures is common.

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 powe

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