Construction toy excavator Fischertechnik Liebherr R 938 Pneumatic Excavator model 576450

Fischertechnik 576450 is a building set designed for ages 10 and up that contains 689 parts in black, grey, light grey and yellow. The kit supplies a wide selection of structural elements, connectors and pneumatic components intended for constructing a detailed Liebherr R 938–style pneumatic excavator model. The set includes parts to assemble movable booms and a separately controllable shovel, plus a compressor, manual valves and adjustable exhaust throttles so users can explore realistic pneumatic movements and mechanical linkages.

Advantages

The set brings pneumatic technology into hands-on learning with components that allow precise pressure control and adjustable air volume. High-quality parts and a varied assortment of connectors make it suitable for building stable mechanical structures and for experimenting with realistic movement sequences. The combination of mechanical elements and pneumatic controls supports understanding of technical relationships without relying on external electronics.

Suitable for

• STEM education and classroom demonstrations
• Hobby prototyping and model building
• Practical learning of pneumatics and mechanical linkages
• Individual or group project work for ages 10 and older

Key specifications

• Number of pieces: 689
• Recommended minimum age: 10 years
• Colour scheme: Black, Grey, Light grey, Yellow
• Includes pneumatic components: compressor, manual valves, adjustable exhaust throttles
• Model focus: Pneumatic excavator with movable boom and controllable shovel

How to use

Follow the supplied assembly instructions to build the excavator model step by step; begin by sorting parts by type and colour to simplify construction. Install the pneumatic compressor and connect valves and tubing as described, then test and adjust exhaust air throttles to achieve the desired movement speed and force. Use the built model to observe how changes in pressure and throttle settings affect motion and to explore mechanical lever and joint behavior.

Usage recommendations

Use on a stable, level surface and supervise younger builders during pneumatic setup. Avoid exposing pneumatic components to dust or liquids, and follow safety guidance when operating the compressor. For extended learning, combine the set with classroom exercises on pressure, force and lever principles.