Marshall Stability Machine
HT-720-1
Reference Standards: ASTM D1559, ASTM D6927, AASHTO T245, IS 1201
The Manual Marshall Stability Machine is designed to determine the maximum load (stability) and deformation (flow value) of bituminous mixtures under controlled loading conditions. The specimen is placed between two loading heads and subjected to compressive load through motorised mechanism. Load is measured using a proving ring, while deformation is recorded using a dial gauge. This system is widely used in routine laboratories where simple, reliable, and cost-effective testing is required. It is particularly suitable for field labs and basic quality control applications.
Key Features
- Proving ring based load measurement system
- Dial gauge for accurate flow measurement
- Sturdy loading frame ensuring stability
- Adjustable loading heads for standard specimen sizes
- Low maintenance and easy operation
- Suitable for site and laboratory use
Technical Specifications
- Load capacity: 50 kN
- Loading rate: Approx. 50.8 mm/min (manual control)
- Proving ring accuracy: ±1%
- Flow measurement: 0–25 mm (0.01 mm least count)
- Specimen size: 4” (101.6 mm) and optional 6”
- Operation: Motorised
- Frame: Heavy-duty mild steel
Ordering Information
HT-720-1 Marshall Stability Machine, Capacity-50kN
Note: Machine supplied with NABL accredited calibration certificates.
Marshall Stability Machine – Touchscreen (Fully Automatic)
HT-720-3
Reference Standards: ASTM D6927, ASTM D1559, AASHTO T245, IS 1201
The Touchscreen Marshall Stability Machine is a fully automatic, microprocessor-controlled system designed for high-precision and advanced laboratory applications. The equipment automatically controls the loading rate, captures peak stability and flow values, and displays real-time test graphs. With integrated data acquisition and storage, it enables detailed analysis, reporting, and traceability. This model is ideal for NABL-accredited laboratories, R&D centers, and high-volume testing facilities.
Key Features
- Fully automatic test operation with one-touch start
- Color touchscreen interface with graphical display
- Real-time load vs deformation curve
- Automatic peak detection and result calculation
- Data storage and USB/PC connectivity
- Built-in calibration and diagnostics system
- Multi-language user interface
- High repeatability and precision
Technical Specifications
- Load capacity: 50 kN
- Loading rate: 50.8 mm/min (automatic control)
- Load measurement: High precision load cell (±0.5%)
- Flow measurement: LVDT sensor (0.001 mm resolution)
- Display: 5”–7” color touchscreen
- Data storage: Internal memory with export option
- Interface: USB / RS232 / PC connectivity
- Power supply: 230V, 50 Hz
- Operation: Fully automatic
Ordering Information
HT-720-3 Fully Automatic Marshal Stability Machine, Capacity-50kN
Note: Machine supplied with NABL accredited calibration certificates.
Automatic Marshall Stability Test Machine
Automatic Marshall Compactor
HT-722-1
Reference Standards: ASTM D1559, ASTM D6926, AASHTO T245
The Automatic Marshall Compactor is designed to prepare bituminous specimens with uniform density and compaction energy. The equipment simulates field compaction by applying repeated blows from a standard hammer falling from a specified height. The compaction process ensures proper aggregate interlocking and binder distribution, which directly affects stability and durability of the mix. The automated mechanism eliminates operator variability, providing highly repeatable and consistent specimens for accurate Marshall testing.
Key Features
- Fully automated operation with programmable blow count
- Precision-guided hammer for uniform impact distribution
- Digital counter for blow tracking
- Safety enclosure with interlock system
Technical Specifications
- Hammer weight: 4.54 kg ± 0.01 kg
- Drop height: 457 mm ± 5 mm
- Blow count: Programmable
- Power supply: 230V, 50 Hz
- Motor: Geared motor with controlled speed
Ordering Information
HT-722-1 Automatic Marshall Compactor
Mixer With Heating Jacket
A 6-litre Mixer Used in conjunction with an Iso Mantle, is suitable for mixing samples of asphalt. Bench mounting Mixer, 6 liter nominal capacity. Supplied with bowl, beater and whisk. Motorised with two speed operated on 230 V A.C., Single Phase.
