Overhead Bitumen Laboratory Mixe

About Overhead Bitumen Laboratory Mixe

An Overhead Bitumen Laboratory Mixer is a precision-engineered device used for uniform mixing of bitumen, aggregates, and additives in laboratory conditions for road construction testing and research applications.

This equipment is specially designed to produce homogeneous bituminous mixtures required for tests such as Marshall Stability, compaction, and mix design analysis. It ensures accurate blending at controlled temperatures, which is critical for reliable test results.

Product Features

• Heavy-duty overhead motor-driven mixing system
• Dual motion mixing (rotary + planetary action) for uniform consistency
• Variable speed control for precise mixing operations
• Thermostatically controlled heating system (optional or built-in) for maintaining required bitumen temperature
• Durable stainless steel mixing bowl/paddle
• Adjustable height and stable structure for safe operation
• Digital or manual control panel depending on model

Technical Specifications (Typical)

• Capacity: 5 to 20 litres (varies by model)
• Power Supply: 220230V AC, 50 Hz
• Mixing Speed: Variable (approx. 50500 RPM range)
• Temperature Control: Up to 200300C (with heater)
• Motor Power: ~0.5 HP to 1 HP

Applications

• Preparation of bituminous mix samples
• Asphalt and pavement testing laboratories
• Road construction quality control labs
• Research & development in civil engineering

Working Principle

The mixer operates using an overhead stirrer mechanism, where the rotating shaft drives the mixing paddle inside the container. Some models use planetary motion, where the paddle rotates on its axis while revolving around the bowl, ensuring complete and uniform mixing of high-viscosity materials like bitumen.

Advantages

• Ensures uniform coating of aggregates with bitumen
• Provides repeatable and accurate test samples
• Reduces manual effort and mixing errors
• Suitable for high-viscosity materials