Lab Instruments
Spin Air Sieve
Among various dry powder classification methods, sieving is a popular method
used in many industries. However, in the existing sieving machines air flow
is one-way from above to below sieves, which often makes
sieves clogged and is not suitable for fine powder classification. On the
other hand, Spin Air Sieve enables short-time dry powder classificatrion with
less cloggings by dispersing samples on a sieve to primary particles with
circulating air so that fine powders can quickly go through the sieve.
Feature
- It easily and quickly sieves fine powders (5μm-).
- Φ75 JIS sieves, Φ75 acrylic special sieves, and Φ200 JIS sieves can be used.
- By replacing the lid, several types of dispersing air flow (circulating or rising air) can be applied.
- Most of the sieves such as stanleess steel or electroformed micro sieves can be used.
- 3 solenoid valves prevent sieve clogging.
- Suction pressure is automatically adjusted to a set pressure.
- Fine powders can be collected with a cyclone.
Principle
When dust collecting cleaner starts to vacuum, external air is sucked from a gap between a sieve and a lid (0.5-1mm). At that time samples on the sieve lift up in the circulating air while dispersing. Fine powders in the samples are passing through the screen of the sieve. Pulses to the frame of the sieve remove clogging. Sieving time and pulse interval are adjustable with a timer.
Specification
| Sample | Amount | Several g/measurement(depends on sieve opening) |
|---|---|---|
| Sieve | Standard | JIS Z-8801 test sieve/dedicated sieve with acrylic frame |
| Diameter×Hight | Φ75×25H/Φ200×45H(JIS sieve) Φ75×16H(Acrylic special sieve) |
|
| Material of Screen | SUS304/Electroformed sieve(micro sieve) and others | |
| Sieve Opening | 20μm or more(Woven screen)/5μm or more(Micro sieve) | |
| Sieving Device | Size | 300W×400D×250H (excluded sieve height) |
| Weight | 20kg | |
| Sieving Part | Pulse unit for clogging prevention(triple) Second air valve(manual) Pressure sensor(display between 0 - －10KPa) |
|
| Operating Part | Start and stop switch Sieving time setting timer Pulse interval setting timer Pressure indicator |
|
| Cyclone Unit | Size | 200W×160D×400H (stand alone) |
| Material | SUS304 | |
| Collection Vessel | About 1L | |
| Dust Cleaner | Type | CV-97A (Hitachi) |
| Power Consumption | 1050W | |
| Size | 400W×354D×645H (on floor) | |
| Utility | Power Source | AC100V×50/60Hz×15A (included dust collecting cleaner) |