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Asphalt/bituminous mixture

Filterless centrifuge binder extractors

ASTM D1856 | EN 12697-1
Main features
  • High speed with continuous flow
  • Filterless method assures complete filler recovery
  • Automatic ramp and pre-set speed control
  • Up to 100 g or 400 g can be extracted per test
General description
General description
Used for rapid filterless separation of filler (ash) from binder solution coming, for instance, from Wire mesh extractor model 75-B0015. The centrifuge can also be used for binder recovery from an asphalt sample previously disgregated in solvent and poured into the funnel fit with 200 mm dia. test sieves to separate gradually the aggregates.  The test is carried out by pouring the solvent from the top funnel into the rotating aluminium cup. Due to the centrifugal effect, the liquid spreads on the wall and moves upwards, leaving mineral particles in the cup whilst the liquid is discharged outside through the outlet tubing. A special electronic circuit provides for a preset controlled ramp which gradually increases the speed to the maximum. Two models available: 75-B0024/N for filler extraction up to 100 g  per test, fit with 70 mm dia. cup and 75-B0024/B for filler extraction up to 400 g per test, fit with 122 mm dia. cup.  The 75-B0024/N, NY and NZ versions do not include sieves which have to be ordered separately, conforming to EN or ASTM standards. See accessories. The cup should be internally lined with paper for a better and complete removal of filler. See accessories: 75-B0005/2.
The solvent used can be profitably recovered with the Solvent recovery unit.
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Technical specifications

Models 75-B0024/N
75-B0024/NY
75-B0024/NZ
75-B0024/B
Max. quantity of filler extracted per test 50-100 g 400 g
Cup dimensions, mm Dia. 70x190 Dia. 122x211
Max. speed, r.p.m. 11000 11000
Power, W 550 1000
Sieves included See accessories 0.075, 0.25,
0.71, 2 mm
Overall dimensions (lxwxh) mm 500x370x850 560x640x1200
Weight approx. kg: 55 100

Ordering info

75-B0024/N 
Continuous flow filterless centrifuge, 70 mm dia. cup. 230 V, 50 Hz, 1 ph.

75-B0024/NY 
Continuous flow filterless centrifuge, 70 mm dia. cup. 220 V, 60 Hz, 1 ph.

75-B0024/NZ 
Continuous flow filterless centrifuge, 70 mm dia. cup. 110 V, 60 Hz, 1 ph.

75-B0024/B 
Continuous flow filterless centrifuge, 122 mm dia. cup, complete with four 200 dia. sieves, openings 0.075, 0.250, 0.710, 2.00 mm. 380 V, 50 Hz, 3 ph.

Accessories

Accessories

TEST SIEVES

15-D2335/J
200 mm dia. ISO test sieve, 63 µm opening

15-D2330/J
200 mm dia. ISO test sieve, 75 µm opening

15-D2300/J
200 mm dia. ISO test sieve, 150 µm opening

15-D2275/J
200 mm dia. ISO test sieve,250 µm opening

15-D2230/J
200 mm dia. ISO test sieve, 710 µm opening

15-D2185/J
200 mm dia. ISO test sieve, 2 mm opening

Note:
The EN standard require 0.063 and 2 mm opening sieves.
The ASTM standards require 0.075 and 0.150 mm opening

LINING PAPER

75-B0005/2  
Lining paper for 75-B0024/N and 75-B0024/B series centrifuges. Pack of 100

Spare parts

75-B0024/1
Spare aluminium cup dia. 70x190 mm for 75-B0024/BN series centrifuges.

75-B0005/1
Spare stainless steel cup dia. 122x211 mmfor 75-B0024/B centrifuge.

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