Automatic Soil Compactor
STANDART: EN 13286-2, EN13286-47, ASTM D698, D1557
LT-S0075 Automatic Soil Compactor
The Automatic Soil Compactor is designed for the controlled and repeatable compaction of soil specimens in Standard Proctor, Modified Proctor and CBR moulds. The programmable digital counter controls the required number of blows per layer and automatically stops the machine when the selected cycle is completed. Adjustable rammer weight, drop height and rotating mould table provide compatibility with different EN and ASTM compaction procedures.
- Automatic soil compaction: Applies controlled and repeatable blows to laboratory soil specimens.
- Standard Proctor testing: Supports specimen preparation according to ASTM D698.
- Modified Proctor testing: Supports higher-energy compaction according to ASTM D1557.
- CBR specimen preparation: Suitable for compacting specimens prepared for CBR testing.
- Programmable blow counter: Allows the operator to set the required number of blows per layer.
- Automatic stop: Stops automatically when the programmed blow count is completed.
- Adjustable rammer weight: Selectable 2.5 kg or 4.5 kg configuration.
- EN/BS rammer face: Ø50 mm circular rammer face.
- ASTM rammer face: Ø50.8 mm (2 in) circular rammer face.
- EN/BS drop heights: 300 mm or 450 mm.
- ASTM drop heights: 305 mm or 457 mm.
- Rotating mould table: Distributes blows across different areas of the specimen surface.
- Dual-radius compaction: Supports inner and outer blow patterns for larger Modified Proctor and CBR moulds.
- External dimensions: 64 × 34 × 150 cm.
- Approximate weight: 110 kg according to the technical specification table.
- Power supply: 220 V, 50–60 Hz, 1 phase.
- Product code: LT-S0075.
| Product Code | Product Name | External Dimensions (cm) | Weight (kg) | Power Supply |
| LT-S0075 | Automatic Soil Compactor | 64 × 34 × 150 | 110 | 220 V, 50–60 Hz, 1 ph |
What Is an Automatic Soil Compactor?
The Automatic Soil Compactor is a laboratory machine designed to compact soil specimens using controlled and repeatable impact energy. The LT-S0075 supports the preparation of specimens for Standard Proctor, Modified Proctor and CBR applications.
During operation, the rammer is raised to a predetermined height and released onto the soil specimen. The mould table rotates between blows so that the impact points are distributed across the specimen surface. This arrangement reduces operator-dependent variations associated with manual compaction.
Standard and Modified Proctor Compaction
ASTM D698-12(2021) covers laboratory compaction using standard effort. The method uses a 5.50 lbf / approximately 2.5 kg rammer dropped from 305 mm to establish the relationship between moulding water content and dry unit weight.
For higher compaction energy, ASTM D1557-12(2021) uses approximately 4.5 kg rammer weight and a 457 mm drop height. The standard is commonly referred to as the Modified Proctor compaction method.
The LT-S0075 allows the rammer configuration to be adjusted according to the selected procedure.
Adjustable Rammer and Drop Height
For EN/BS applications, the machine can use a Ø50 mm circular rammer face with 300 or 450 mm drop heights.
For ASTM applications, a Ø50.8 mm (2 in) rammer face can be used with 305 or 457 mm drop heights. Rammer weight can be configured at approximately 2.5 kg or 4.5 kg.
These settings allow a single machine to support different laboratory compaction procedures.
Programmable Digital Blow Counter
The programmable digital counter allows the operator to enter the required number of blows for each layer before starting the compaction cycle.
The machine automatically counts each impact and stops when the programmed number is reached. This eliminates manual blow counting and helps apply the same compaction sequence to successive specimens.
Rotating Mould Table
The rigid lower table rotates the mould at regular intervals. As a result, the rammer does not repeatedly strike the same location.
For larger Modified Proctor and CBR moulds, the system can distribute impacts along inner and outer paths to provide more uniform coverage across the specimen surface. LİYA specifically describes this rotating-table arrangement for the LT-S0075.
EN and CBR Applications
BS EN 13286-2:2010 covers Proctor compaction for unbound and hydraulically bound mixtures and remains current, although it is presently under review.
BS EN 13286-47:2021 covers CBR, Immediate Bearing Index and linear swelling testing. The LT-S0075 does not perform the CBR penetration test itself; it supports the preparation of compacted CBR specimens used in that testing process.
Overall, the Automatic Soil Compactor combines programmable blow control, adjustable rammer settings and automatic mould rotation to provide efficient and repeatable preparation of Proctor and CBR soil specimens.
