Screw feeder DRS...K
Our proven modular system for dosing screws meets most requirements for dosing of powders and granulates.
If you have adjustment wishes, we would like to consider them as far as possible. We would be pleased to talk about the task with you.
Basic configuration
Design for use in the EU
Inlet 250 x 160 mm
Screw shaft mounted on one side
Screw shaft screwed in and easily exchangeable
Progressive thread pitch in the inlet area
Double screw blade at the outlet for more exact dosing
Shaft mounted geared motor in on-slip design
Material
Stainless steel AISI 304
Surfaces
Outside pickled and glass bead blasted
Inside surfaces 2B, welding seams grinded and pickled
Optional:
Surfaces in contact with product Ra<0,8 µm welds Ra<1,6 µm
Defects in the surface can occur
Outlet
We offer different standard designs for the outlet:
- for Jacob pullring
- Jacob loose flange
- Fixed flange PN10
- Outlet for mounting a hose
- Horizontal outlet (without vertical outlet tube)
On demand we manufacture the outlet according to your specifications.
Geared motor
Shaft mounted geared motor make Nord type SK0282
On-slip design
Voltage 230/400 V, 50 Hz
Protection class IP55, insulation class F
Temperatur sensor TF for themal motor protection. Thermistor 3 x 155 °C
Nord standrad painting RAL 7031 blue-gray
Efficiency class:
- without ATEX:
IE1 at 0.37 and 0.55 kW
IE3
at 0.75 and 1.1 kW
- with ATEX: IE1
Gear oil:
- for Non-Food: Mineral oil CPL 220
- for food: synthetic
gear oil CLP PG H1 220 (FDA
178.3570)
Shaft sealing
The shaft sealing is mounted into the flange of the gear motor. This flange is designed so that different shaft sealings can be installed.
In addition to the standard shaft seal, a special shaft seal can be installed for other temperature ranges.
The shaft sealing can be exchanged with another shaft sealing by a service fitter at a later time, if this is required e.g. by product change.
Standard shaft sealing to choose:
- Shaft sealing ring amde of Polyurethan,
support made of POM and siral spring made of stainless steel.
For food according to 1935/2004/EG and FDA
Operating temperature -20 to +100 C
Resistant to: Oil up to 60 C, grease,
dilute acid, dilute alkalis, water up to 90 °C
Not resistant to concentrated acids and concentrated alkalis.
- Shaft sealing DynamicSeal with flushing air
Sealing ring made of PTFE for food according to
1935/2004/EG and FDA
connection for compressed air with
hose connection outside Ø6 mm
Compressed air consumption app. 12,5 Nl/min
compressed air min 0.1 bar
Set fittings for flushing air (optional):
- 1 Precision regulator WK-DRP200-1/4-10-M
- 1 Manometer M-SH-40-0/2,5-1/8-KU-bar/psi
- 1 Combination device (filter, regulator, manometer) WH-K1-1/4-10-M
- 1 3/2-way ball valve WH-KH1-1/4
- 1 3/2-way magnetic valve WH-MV1-1/4 24V or 230V
- 1 Set screw fittings, hose couplings and mounting brackets
Flat sealing
Flat sealings for flanges and hatches are made of white NBR for food according to 1935/2004/EG and FDA.
