Casappa KP series gear pump:

CASAPPA**KP30.51**and**KP30.56 series gear pumps** belong to KAPPA 30 compact cast iron gear pumps, designed for high-pressure and high-reliability applications, and are widely used in construction machinery, agricultural machinery, industrial hydraulic systems and other fields.：
###一. Core features and advantages
1. **High-strength cast iron structure**
It adopts a two-piece cast iron shell with strong rigidity and high pressure resistance, and can adapt to high temperature environments (-40°C to +80°C) and high pollution conditions.For example, in construction machinery, KP30.51 can withstand frequent impact loads, while KP30.56 is more suitable for systems that require large flow output due to its larger displacement.
2. **High volumetric efficiency and low noise**
Through precision gear design and optimized sealing technology, the volumetric efficiency is more than 95%, and the noise level is less than 75 dB(A).This feature allows it to work efficiently in agricultural machinery (such as tractor hydraulic systems) while reducing operator fatigue.
3. **Flexible installation and configuration**
Supports SAE, DIN and EUROPEAN standard flange, shaft and oil port combinations, which can be easily integrated into existing systems.For example, the user can choose the side port or rear port design to adapt to different spatial layouts.
4. **Wide hydraulic oil compatibility**
It is recommended to use ISO VG 32-68 mineral oil or biodegradable hydraulic oil with a viscosity range of 20-100 mm2/s to meet the needs of different environments.For example, in cold areas, low-viscosity hydraulic fluids can be selected to ensure cold start performance.

###二. Typical application scenarios
1. **Construction machinery**
-**Excavator**: KP30.51 is used to drive the boom and bucket rod cylinders to provide precise pressure control; KP30.56 is suitable for loader bucket hydraulic systems that require fast action.
-**Concrete pump truck**: When pumping at high pressure, the peak pressure of 250 bar of KP30.51 ensures stable mortar delivery.
2. **Agricultural machinery**
-**Tractor**: The large displacement of KP30.56 (56.54 cm3/rev) can drive multiple agricultural tools (such as plows and planters) at the same time to improve operating efficiency.
-**Combine harvester**: The low noise characteristics of KP30.51 reduce the noise pollution of field operations, and its high temperature resistance adapts to long-term harvesting conditions.
3. **Industrial hydraulic system**
-**Injection molding machine**: The high-precision flow control of KP30.51 can ensure the molding quality of plastic products.
-**Mining machinery**: KP30.56’s cast iron structure and high pressure bearing capacity enable it to operate stably in harsh environments.