Overhead Bitumen Laboratory Mixer

About Overhead Bitumen Laboratory Mixer

Overhead Bitumen Laboratory Mixer is a precision-engineered laboratory equipment used for mixing bitumen with aggregates, fillers, and additives to prepare uniform asphalt samples for testing. It is widely used in road construction laboratories, civil engineering institutes, and quality control labs.

The mixer consists of a robust frame, overhead motor drive system, mixing blade assembly, and heating arrangement. The overhead stirrer mechanism ensures uniform mixing of high-viscosity bituminous materials, while the adjustable speed control allows precise operation for different mix designs.

The equipment is designed to meet international standards and ensures homogeneous coating of aggregates with bitumen, which is essential for reliable Marshall stability, compaction, and other asphalt tests.

Key Features

• Heavy-duty overhead motor with variable speed control
• Uniform mixing of high-viscosity bitumen materials
• Robust mild steel / stainless steel construction
• Heating arrangement with temperature control (optional)
• Adjustable mixing blades for efficient blending
• Easy operation and maintenance

Technical Specifications

• Capacity: 5 L / 10 L / 20 L (varies by model)
• Speed Range: 10 240 RPM (adjustable)
• Temperature Range: Ambient to ~300C (with heater)
• Power Supply: 220230V AC, 50 Hz
• Material: Mild steel frame with SS mixing bowl
• Standards: EN 12697-35

Applications

• Preparation of bituminous mix for Marshall Stability Test
• Asphalt sample preparation for compaction and tensile tests
• Road construction quality control
• Research and development laboratories

Working Principle

The aggregates and bitumen are heated to the required temperature and placed in the mixing bowl. The overhead rotating blade mixes the material uniformly, ensuring proper coating of aggregates. Controlled speed and temperature help achieve consistent and reproducible test samples.