Excavator Trainer


Product description

The hydraulic excavator is widely used in engineering construction, road construction, hydraulic engineering, defense construction and other earthwork construction and mining operations. At present, almost all small and middle size hydraulic excavators adopt hydraulic transmission. Compared with mechanical excavators, hydraulic excavators have the advantages of small size, light weight, flexible operation, strong digging force, easy for overload protection and long-distance operation etc.

The excavator trainer displays the structure and working principle of hydraulic excavator, easy for student’s understanding and hands on operation.

Product Detail


Technical parameter
Motor model: 3HP-4P 

Oil pump model: VP-15-FA3    

Rated power: 2.2KW      

Rated rotating speed: 1420r/min   

Regulated voltage range: 4~7Mpa   

Rated emission: 8.3ml/rev

Dimensions: 1550×650×1800mm

Basic experiments

A. Experiment program

1. The structure, working principle and disassemble experiment of hydraulic transmission component parts.

2. Hydraulic excavation machinery demonstration control experiment.

3. PLC software simulation demonstration and control experiment.

4. Programmable logic controller (PLC) electrical control experiment: Machine-electricity-hydraulic integrated control experiment.

B. Experiment content

1. The structure, working principle and disassemble experiment of hydraulic transmission component parts

1) Mapping and analysis of mechanical components

2) Learning and analysis of the principle of hydraulic control system

2. Hydraulic excavation machinery demonstration control experiment

1) Excavation work, bucket and stick integrated for work experiments;

2) Rotating operation, the moveable arm raises and platform rotates at the same time;

3) Unloading operation, bucket work with stick and at the same time, the height of the arm

can be adjusted;

4) Return, platform rotation, movable arm works with stick and back to the original

excavated position.

3. Programmable logic controller (PLC) electrical control experiment: mechanical-electricity-liquid integrated control experiment.

1) PLC order programming, ladder programming learning;

2) Learn and use PLC programming software;

3) Communication, online commissioning of PLC and computer;

4) Optimize the application of PLC in hydraulic transmission control and control program.

Main feature

1. The experimental bench is made of cold-rolled steel plate (sprayed and treated with anti-corrosion treatment), bench-top structure, control operation etc.

2. The electrical operation control is under-mounted and the hydraulic station is placed in main cabinet of hydraulic platform. The whole structure is compact, coordinated, and the layout is practical, available for 4-6 people for experiments.

3. The excavation machinery is made by physical structure and reduced proportion, which can truly reflect the actual working conditions of excavator mechanical structure, the students can deeply understand structure and working principle of the parts in experiment.

4. The experimental control contains manual/ automatic control.

5. The experimental components are made of pressure resistant hose, the pressure up to 25Mpa.

6. With three-phase leakage protection, the output voltage 380V/220V, power supply disconnected when more than 30mA leakage happens; electrical control adopts DC 24V power supply with over-voltage protection, prevent the device damage by wrong operation.