Casappa KP series gear pump:

KP30.61** and **KP30.73 series gear pumps** belong to the KAPPA 30 compact cast iron gear pump family, designed for medium and high pressure, large flow applications, widely used in construction machinery, agricultural machinery, mining equipment and other fields.The following is a detailed analysis based on the latest technical data：
###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 mining machinery, the large displacement and high pressure bearing capacity of KP30.73 can stably drive heavy equipment such as crushers.
2. **High flow output and low noise**
The 73.82 cm3/rev displacement of KP30.73 can meet the needs of multiple agricultural tools operating at the same time in agricultural machinery, and the low-noise design (≤75 dB(A)) makes it more advantageous in urban construction scenarios.
3. **Flexible installation and configuration**
Support SAE, DIN and EUROPEAN standard flange, shaft and oil port combinations, and the side port or rear port layout can be realized by replacing the plug to adapt to different space constraints.
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. In cold areas, low-viscosity oil can be selected to ensure cold start performance.

###二. Typical application scenarios
1. **Construction machinery**
-**Large excavator**: KP30.61 provides precise pressure control for the boom and bucket rod cylinder, while KP30.73 can meet the large flow requirements of the loader for rapid lifting.
-**Concrete mixing station**: The peak pressure of 220 bar of KP30.61 ensures the stability of mortar delivery.
2. **Agricultural machinery**
-**Combine harvester**: The large displacement of KP30.73 (73.82 cm3/rev) drives the cutting, threshing and conveying mechanisms at the same time to improve operating efficiency.
-**Large tractor**: The low noise characteristics of KP30.61 reduce field noise pollution, and the high temperature resistance is suitable for long-term farming.
3. **Industrial and mining equipment**
-**Injection molding machine**: The high-precision flow control of KP30.61 ensures the molding quality of plastic products.
-**Mine conveyor belt drive**: KP30.73’s cast iron structure and high pressure bearing capacity can still operate stably in a dust environment.