Hägglunds Radial Piston Engine 140 140 SA0NHC 02 78

Make and Model:
The Hägglunds 140 140 SA0NHC 02 78 engine is part of the CA series of radial piston engines produced by Hägglunds, a division of Bosch Rexroth. This motor is known for its reliability, mechanical efficiency, and ability to handle applications requiring high torque at low speeds.

General Description and Visual Appearance:
This motor appears as a compact cylindrical unit with a robust steel body, designed to withstand extreme operating conditions. The exterior features a painted metal casing, often with anti-corrosion finishes. Visually, the structure includes a mounting flange, inlet and outlet ports for hydraulic oil, and connectors for sensors and optional accessories.

Main Components:

• Radial Cylinder: Contains pistons arranged radially around the crankshaft.
• Pistons: Hydraulic pistons are responsible for transmitting the driving force.
• Crankshaft: Transforms the linear movement of the pistons into rotary movement.
• Mounting Flanges: Allow the engine to be installed in different configurations.
• Hydraulic Oil Ports: Allow connection to hydraulic circuits.

Measurements and Technical Specifications:

• Weight: 333kg
• Maximum Operating Pressure: 350 bar
• Maximum Torque: Varies depending on application specifications and operating pressure.
• Maximum Speed: Depends on operating conditions and load.
• Displacement: Model specification, important for determining the power and torque generated.

Mechanical Characteristics:
The Hägglunds 140 140 SA0NHC 02 78 engine offers high torque density, excellent mechanical shock resistance and a simple structure that facilitates maintenance. The radial piston construction allows for high performance even at low speeds, making it ideal for applications where high torques are required.

Usage Procedure:
The engine is powered by a hydraulic system that pushes the oil into the radial pistons, generating a rotary movement on the crankshaft. This design allows precise control of speed and torque, being particularly suitable for heavy industrial applications.

Matching Accessories:

• Control Valves: For regulating flow and pressure.
• Temperature and Pressure Sensors: To monitor operating conditions.
• Cooling Unit: To keep the oil at the optimal temperature during heavy use.

Mathematical Formulas for Optimal Use:

1. Torque Calculation: T=P×VT = P \times V $T$ $=$ $P$ $\times$ $V$ where TT $T$ is the torque, PP $P$ is the pressure and VV $V$ is the displacement.
2. Power Calculation: Pout=T×N/9550P_{out} = T \times N / 9550 $P$ o u t ​= $T$ $\times$ $N$ $/9550$ where NN $N$ is the speed in revolutions per minute (RPM).
3. System Efficiency: Consider pressure losses and friction to obtain real performance.

Workable Materials:
These motors are typically used for power transmission in industrial and mining applications, not directly affecting the type of material processed, but adapting to systems that operate with metals, minerals, plastics and other raw materials.

Maintenance and Checks:

• Regular checks: Check for oil leaks, condition of the seals, and functionality of the sensors.
• Cleaning: Keep the exterior clean and check for debris that could compromise the components.
• Replacing the Hydraulic Oil: Essential to ensure the life and efficiency of the engine.

Used Evaluation:
To determine whether your used Hägglunds 140 140 SA0NHC 02 78 engine is in good condition, it is important:

• Check for maintenance documentation.
• Check for signs of excessive wear or external damage.
• Test the engine to make sure there are no vibrations or abnormal noises during operation.

Sectors of Use and Advantages of Purchasing Used:
The engine is used in sectors such as mining, metalworking, and heavy materials handling. Buying a used Hägglunds 140 140 SA0NHC 02 78 engine offers significant cost savings without compromising reliability, given the long life and robustness of these engines, even when purchased second hand.