Their advantages
- Vacuum filter in drum design
- Extremely small space required
- Degassing of the coolant
- Simple installation
Vacuum filter / Negative-pressure filter
Suction belt filter SAFI-T (fleece filter)
The most compact POLO suction belt filter, SAFI-T series, cleans liquids fully automatically. The main field of application is the purification of highly viscous oils, such as those found in rolling processes and on presses. Due to its compact design, there is room for it on every machine and it is therefore very popular.
Short info
- Dry dirt removal
- Perfect utilisation of the filter aid
- Even for small amounts
- Robust and durable
Compact vacuum filter
Due to its compact design, this filter requires little space and still offers a high liquid flow rate. These filters are extremely robust and durable. They are ideal for use with ” viscous” oils in particular. Fleece intake and dirt discharge are located on the front side, which characterises the compact design additionally. At the same time, this makes it very user-friendly.
Design
The filter housing consists of a high-quality welded steel construction. The special feature of this system is a rotating perforated plate drum located in the filter housing. A transport chain is guided around this drum and deflection shafts to a special, inclined discharge. The filter fleece lies on the transport chain as a filter aid, which rests laterally in a sealing area on both sides of the drum. An exhauster for generating the negative pressure and a discharge pump are mounted and tubed on the filter. Float switches in the dirt and clean chambers control the filter function.
Function
The dirty liquid flows into the dirt chamber of the filter through an inlet distributor that avoids turbulence.
The exhauster draws the liquid through the fleece into the inside of the perforated plate drum, thus creating a negative pressure. This negative pressure increases the flow rate, allows the filter cake to build up higher and, as air is drawn through this filter cake, produces a dry stab-proof discharge. The higher-building filter cake provides a high-quality filter layer that improves the degree of filtration.
The filter discharge pump directs the cleaned liquid into a clean tank. At a maximum level in the dirt chamber, a belt pre-stroke is triggered. At the same time, the used fleece is conveyed into the dirt container and a fresh fleece is drawn in. The filtering process does not have to be interrupted for this operation; no buffer tank is necessary!
User-friendly
Compact design
Lightweight fleece usable
Made in Germany
Process safety
Low maintenance
Picture gallery
Suction belt filter SAFI-T fleece filter
Suction belt filter SAFI-T fleece filter
Suction belt filter SAFI-T fleece filter
Discharge pump
Data sheet
| Standard sizes | SAFI-T0.4 | SAFI-T0.7 | SAFI-T1.0 | SAFI-T1.7 |
|---|---|---|---|---|
| Mounting dimesion L x W | 700 x 720 | 1000 x 745 | 1000 x 1270 | 1150 x 1340 |
| Lenght | 1350 | 2000 | 2000 | 2150 |
| Width | 820 | 885 | 1440 | 1505 |
| Height | 1050 | 1550 | 1550 | 1550 |
| Weight approx. (kg) | 260 | 400 | 620 | 700 |
| Inlet | R 1 1/2" | DN 125 | DN 150 | DN 150 |
| Outlet | R 1 1/2" | DN 65 | DN 100 | DN 100 |
| Overflow | R 3" | DN 125 | DN 150 | DN 150 |
| Volume approx. (litres) | 90 | 250 | 500 | 600 |
| Flow rate max. (l/min) emulsions* | 200 | 500 | 1000 | 1300 |
| Flow rate max. (l/min) oils* | 100 | 250 | 500 | 650 |
| Connected load (kW) | 1,7 | 4,6 | 5,4 | 7,2 |
| Supply voltage | 3 ~ 400 V 50 Hz | 3 ~ 400 V 50 Hz | 3 ~ 400 V 50 Hz | 3 ~ 400 V 50 Hz |
*Definition of flow rate: Emulsions and aqueous media approx. 1 mm²/sec at 20 °C and oils up to 15 mm²/sec at 20 °C.
The maximum flow rate of the filter is indicated; depending on the machining process and the degree of contamination, the flow rate may be lower.
Subject to technical changes in the interest of progress.
