Dust Disperser / Solid Aerosol Generator
VDI 3491
ISO 5011

SAG 410 - Dosing range 50mg/h ... 6kg/h

The Dust Dispersers SAG 410 for dosing and dispersing powders use the proven method of metering powder by a moving belt to the disperser like in directive VDI 3491-8 described. That ensures a constant and reproducible supply of powder, even at low feed rates. The particle concentration of the output aerosol can easily be adjusted over a wide range by changing the speed of the feed belt. The powder is removed from the belt by an ejector nozzle (similar to ISO 5011). more

The Dust Dispersers SAG 410 for dosing and dispersing powders use the proven method of metering powder by a moving belt to the disperser like in directive VDI 3491-8 described. That ensures a constant and reproducible supply of powder, even at low feed rates. The particle concentration of the output aerosol can easily be adjusted over a wide range by changing the speed of the feed belt.
The powder is removed from the belt by an ejector nozzle (similar to ISO 5011).

Dust is often needed for tests, research and quality assurance tasks. It is defined as a dispersion of fine solid particles in gas. To produce such aerosols, often very small amounts of solids must be dosed consistently and continuously.

The new designed dust feeder SAG 410/U applies an innovative concept of a rotating stainless steel ring for dosing. By means of the ring very small amounts of powder can be fed.
Especially for poor-flow, cohesive materials the powder disperser SAG 410/P has been developed.

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  • Constant and reproducible feed rate over a wide range – suitable for many applications
  • Highly accurate, user-independent metering of the powder
  • Refillable during operation without any effect on the aerosol concentration – ideal for long term studies
  • High concentration even at small flow rates – speeds up testing in low flow applications
  • Easy to clean and change material
  • Simple interchangeable dispersing units allow a single instrument to have an enormous mass output range from 0.05…6000 g/hour*
  • Remote control units for both manual or computer control are available
  • Filter efficiency measurement
  • Aerosol research
  • Inhalation and toxicology studies
  • Optimization of combustion processes
  • Flow visualisation, LDV and PIV applications
  • Mixing and coating processes
  • Performance, evaluation and calibration of dust samplers and monitors

The generator models SAG 410, SAG 410/L and SAG 410/H use the same principle of feeding the powder by a special feeding belt. The defined segments warrant a constant and reproducible supply of the powder even in small quantities. The resulting particle number concentration of the output aerosol can be easily adjusted by setting the feeding belt speed over a wide range.

Filling the small segments is realized by the scraper. Its design enables a constant dosing of the powder that is nearly independent of the powder reservoir filling level. The reservoir can be refilled during operation without any effects on the aerosol concentration.

The dispersing unit consist of a dual-stream ejector nozzle (similar to DIN ISO 5011) and a tube connection to the housing for compressed air supply. Shear forces created in this ejector disperse and deagglomerate the powder to form an aerosol.

Power supply 100 … 260 V
Device fuse 2 fast acting lead fuses 4A
Max. particle size 200 µm

Device Versions

Model SAG 410/U
UltraLowflow
SAG 410/L
Lowflow
Feeding
volume:
70 cm3 (50 g*) 320 cm3 (220 g*)
Nonstop
operation:
25 h at 1 g/h** 20h at 10g/h**
Dosing range: 0.05 .. 20 g/h * 1 .. 264g/h *
Volume flow: 1.5 .. 4 m3/h
(25 .. 67 l/m)
1.0 .. 2.5m3/h
(17 .. 42l/m)
Mass-
concentrations:
0.012 .. 13 g/m3 ** 1.0 .. 264g/m3 **
Dimensions
in mm:
260 x 330  x 380 260 x 330 x 380
Weight: 10.4 kg 9.5 kg

 

Model SAG 410
Standard
SAG 410/H
Highflow
Feeding
volume:
320 cm3 (220 g*) 1700 cm3 (1200 g*)
Nonstop
operation:
2 h at 100 g/h** 1h at 1 kg/h**
Dosing range: 9.5 .. 529 g/h * 114 .. 6162 g/h *
Volume flow: 1.0 .. 2.5 m3/h
(17 .. 42 l/m)
5 .. 20 m3/h
(83 .. 333 l/m)
Mass-
concentrations:
3.8 .. 529 g/m3 ** 5.7 .. 1232 g/m3 **
Dimensions
in mm:
260  x 330  x 380 320  x 330  x 380
Weight: 9.5 kg 12 kg

* depending on solid density
** depending on dosing belt speed and bulk density