POWDER DOSING UNIT
SF SERIES

The loss-in-weight feeders of the SF series are suitable for dosing free-flowing powders. The product enters into the hopper manually or through a butterfly valve. A built-in mixer helps to feed the screw so as to avoid problems during the downward movement of the material. A weighing system with load cell measures any weight variation in real time. The required throughput is obtained by changing the speed of the screw which is driven by a motor with inverter. A Siemens PLC controls from 1 to 8 dosing stations.
Technical Specifications
- Stainless steel structure.
- Driven by a motor with inverter.
- Control board with a S7 200 Siemens PLC.
- Gearmotor-driven mixer.
- Load cell installed in a protection box.
- Adjustable supporting feet.
- Complete with static mixer.
- Also available: Profibus or Ethernet interface.
- 5.7” Siemens touch screen.
ACCESSORIES
• +/- 1% precision on the weight of dosed material.
• Real-time control of the throughput.
• Easy setting of parameters.
• Easy to clean.
• Diagnostics, counters and data tracking.

TECHNICAL DATA |
SF250 |
SF500 |
SF800 |
SF1000 |
SF1500 |
SF2000 |
SF2500 |
SF3500 |
|
Minimum-maximum throughput | kg/h | 0.1-25 | 0.5-70 | 3-100 | 30-280 | 100-850 | 140-2100 | 500-4200 | 1000-8000 |
Hopper volume | l | 6-30 | 6-30 | 20-100 | 20-100 | 50-300 | 50-300 | 110-300 | 300-1000 |
Dosing unit motor power | kW | 0.18 | 0.18 | 0.22 | 0.22 | 0.37-0.55 | 0.37-0.55 | 0.75 | 1.1-2.2 |
Voltage/Frequency | V/Hz | 400/50-60 | |||||||
Noise level | dB(A) | <80 | <80 | <80 | <80 | <80 | <80 | <80 | <80 |
Technical Data
SF250
TECHNICAL DATA | SF250 | |
Minimum-maximum throughput | kg/h | 0.1-25 |
Hopper volume | l | 6-30 |
Dosing unit motor power | kW | 0.18 |
Voltage/Frequency | V/Hz | 400/50-60 |
Noise level | dB(A) | <80 |
SF500
TECHNICAL DATA | SF500 | |
Minimum-maximum throughput | kg/h | 0.5-70 |
Hopper volume | l | 6-30 |
Dosing unit motor power | kW | 0.18 |
Voltage/Frequency | V/Hz | 400/50-60 |
Noise level | dB(A) | <80 |
SF800
TECHNICAL DATA | SF800 | |
Minimum-maximum throughput | kg/h | 3-100 |
Hopper volume | l | 20-100 |
Dosing unit motor power | kW | 0.22 |
Voltage/Frequency | V/Hz | 400/50-60 |
Noise level | dB(A) | <80 |
SF1000
TECHNICAL DATA | SF1000 | |
Minimum-maximum throughput | kg/h | 30-280 |
Hopper volume | l | 20-100 |
Dosing unit motor power | kW | 0.22 |
Voltage/Frequency | V/Hz | 400/50-60 |
Noise level | dB(A) | <80 |
SF1500
TECHNICAL DATA | SF1500 | |
Minimum-maximum throughput | kg/h | 100-850 |
Hopper volume | l | 50-300 |
Dosing unit motor power | kW | 0.37-0.55 |
Voltage/Frequency | V/Hz | 400/50-60 |
Noise level | dB(A) | <80 |
SF2000
TECHNICAL DATA | SF2000 | |
Minimum-maximum throughput | kg/h | 140-2100 |
Hopper volume | l | 50-300 |
Dosing unit motor power | kW | 0.37-0.55 |
Voltage/Frequency | V/Hz | 400/50-60 |
Noise level | dB(A) | <80 |
SF2500
TECHNICAL DATA | SF2500 | |
Minimum-maximum throughput | kg/h | 500-4200 |
Hopper volume | l | 110-300 |
Dosing unit motor power | kW | 0.75 |
Voltage/Frequency | V/Hz | 400/50-60 |
Noise level | dB(A) | <80 |
SF3500
TECHNICAL DATA | SF3500 | |
Minimum-maximum throughput | kg/h | 1000-8000 |
Hopper volume | l | 300-1000 |
Dosing unit motor power | kW | 1.1-2.2 |
Voltage/Frequency | V/Hz | 400/50-60 |
Noise level | dB(A) | <80 |
Added Value
- +/- 1% precision on the weight of dosed material.
- Real-time control of the throughput.
- Easy setting of parameters.
- Easy to clean.
- Diagnostics, counters and data tracking.
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