The RD 3000 compression density tester provides a simple and convenient way to determine the density of raw polymers, masterbatches and uncured rubber compound specimens of any shape or geometry. The instrument features an integrated precision scale for accurately measuring the weight of the specimen. In a second step, all air trapped in the sample is removed by compressing the material in a massive barrel - once stabilized - allows the volume to be determined. Once the test sequence is finished the density is automatically calculated and displayed on the integrated touchscreen. Optionally the instrument can be controlled and test results can be remotely acquired by the MonDevice software system.
For automatic acquisition and processing of all test related data,
the RD 3000 is equipped with:
The RD 3000 is the simplest way to measure density and specific gravity of raw polymers, masterbatches and uncured rubber compound specimens of any geometry. Due to the extremely rugged instrument design, the RD 3000 is suited for laboratory and production environments. The true innovation of the RD 3000 is the way it measures density.
Typically, a strip of rubber is cut directly from the mill, identified at the control panel of the instrument and weighed. All air is compressed out of the sample in a compression cylinder and the volume of the material is taken. Once the density is automatically calculated, it is checked against tolerance limits and displayed along with Pass / Fail status.
1 – Weighing
The sample is placed on the electronic balance which is integrated into the machine table. Therefore only stable weight readings will be accepted.
2 – Compression of the sample
The sample material is filled into the compression cylinder barrel and the compression of the material is started. Once the piston finally reaches a stable position in the compression process, all air is removed from the sample which means that the test sample is compressed to its specific volume.
3 – Volume determination
The sample volume is determined by calculating the difference between the piston stroke at an empty cylinder, and the piston position with the specific test material.
4 – Density calculation
The density of the sample is calculated automatically from the weight and the determined volume.
5 – Displaying of test results
The calculated sample density is displayed on the control panel or in the MonDevice software along with all other results in the test sequence. Single tests and test series results can also be directly printed by an optional built in printer.
RD 3000 Operating workspace
Panel, Barcode Scanner (Opt), Weighing and Compression cylinder
Fully Integrated weighing system
with automatic, guided calibration sequence
Compression cylinder
made from stainless steel, precision ground
Stainless steel crosshead
with integrated safety and limit switches for safe operation
0.8 - 2.6 g/cm³
0.1 %
0.03 %
40 - 120 cm³
approx. 100 cm³
0 - 420 g
1 mg
60 mm
80 mm
5.5 - 10 bar
4.5 - 5.5 bar
40.0 kN (at 5 bar)
64 l (= 64 dm³)
Ethernet Network (10/100 MBit), Serial RS232 (optional)
100 - 230 V, 50/60 Hz + N + PE, Single phase, about 1 Amps
1085 mm x 525 mm x 720 mm
about 190 kg
Temperature - 25°C - + 55°C relative humidity 5 - 95 %
Temperature + 5°C - + 45°C relative humidity 5 - 95 %
- Barcode scanner for Compound and Batch identifi cation - Integrated test result and test series result printer - Serial (RS232) Output Interface - MonDevice control and data acquisition software
With our intelligent application and standard search you can find products for applications and DIN, ISO, ASTM, BS, AFNOR, JIS and TGL standards in a few seconds.
