Semi-Automatic Digital Bitumen Penetrometer
STANDART: TS EN 1426; ASTM D5; AASHTO T49
LT-AS0026 Digital Bitumen Penetrometer | Semi-Automatic
LT-AS0027 Penetration Needle
LT-AS0028 Penetrometer Carrying Case
LT-AS0029 Quarter-Scale Cone and Shaft
LT-AS0030 Half-Scale Cone and Shaft
LT-AS0031 Penetration Cone
LT-AS0032 Ball Penetration Tool
LT-G0152 Sample Container | Ø55x35mm
LT-G0152 Sample Container | Ø75x45mm
The Semi-Automatic Digital Bitumen Penetrometer precisely measures the penetration depth of a standard needle into bitumen and bituminous binders. The system controls the test duration and helps laboratories evaluate material consistency under defined load, time and temperature conditions.
- Precise positioning: Coarse and fine height adjustment allows controlled positioning of the needle above the specimen.
- Digital measurement: The digital indicator measures penetration depth with 0.01 mm resolution.
- Automatic timing: The integrated timer automatically controls the test duration.
- 5-second release: The needle, holder and loading assembly are released for the standard 5-second test period.
- Stable construction: The cast-iron base plate helps maintain stability during measurement.
- Easy handling: The ergonomic adjustment and carrying structure simplifies laboratory operation.
- Wide accessory range: Optional cones and penetration tools support different material testing applications.
- Standards compliance: Supports penetration testing according to TS EN 1426, ASTM D5 and AASHTO T49. Liya’s current product page confirms the 0.01 mm digital reading system and automatic 5-second timing mechanism.
| Product Code | Product Name | External Dimensions (mm) | Weight (kg) |
| LT-AS0026 | Semi-Automatic Digital Bitumen Penetrometer | 260 × 240 × 600 | 10 |
What Is a Semi-Automatic Digital Bitumen Penetrometer?
The Semi-Automatic Digital Bitumen Penetrometer measures the penetration depth of a standard needle into bitumen and bituminous binders. The test helps determine the consistency of the material under controlled load, time and temperature conditions. Therefore, laboratories can compare the hardness and consistency of different bituminous samples.
A higher penetration value generally indicates a softer consistency. Penetration testing therefore provides important information for bitumen quality control and asphalt laboratory applications.
Precise Needle Positioning
The instrument features mechanical coarse and fine height adjustment. The operator can gradually position the penetration needle close to the surface of the prepared specimen.
This controlled adjustment helps establish the correct starting position before testing. The rigid cast-iron base plate also provides a stable working platform and helps minimise measurement variation caused by unwanted movement. Liya specifies both coarse/fine adjustment and a cast-iron base for the LT-AS0026.
Digital Penetration Measurement
The digital indicator measures needle penetration with a resolution of 0.01 mm. This allows the operator to read the result directly from the display and reduces errors associated with manual scale interpretation.
Precise digital measurement also makes it easier to compare consecutive tests. As a result, laboratories can perform routine quality control in a more consistent manner.
Automatic Timing and Free Release
After positioning the needle correctly, the operator starts the test using the control button. The automatic timing unit then releases the needle, needle holder and loading assembly.
The mechanism keeps the assembly free for 5 seconds, which is the standard duration used for typical bitumen penetration testing. Automatic timing helps maintain consistent test conditions and reduces operator-dependent differences.
Wide Range of Accessories
The standard penetration needle supports routine testing of bituminous materials. Additional accessories allow the penetrometer to be adapted for other penetration applications.
Quarter-scale and half-scale cones can be used for relevant ASTM procedures. Optional conical penetration tools support grease and petroleum-related tests, while a ball penetration tool is available for applications associated with ASTM D5329. Liya also supplies two sample container sizes: Ø55 × 35 mm and Ø75 × 45 mm.
Penetration Testing According to Standards
The Semi-Automatic Digital Bitumen Penetrometer supports testing according to TS EN 1426, ASTM D5 and AASHTO T49. These methods determine the consistency of bituminous materials through standard needle penetration under specified test conditions.
Overall, the LT-AS0026 Semi-Automatic Digital Bitumen Penetrometer combines precise mechanical positioning, automatic timing and 0.01 mm digital measurement. Therefore, asphalt producers, universities and quality control laboratories can perform reliable and repeatable penetration tests.
