Bag Lifting Centrifuges
KWS Bag Lifting Centrifuges are batch-mode solid-liquid separators used to dewater slurries containing crystalline, fibrous or powdery solids. The unit uses centrifugal force to drive liquid through a filter bag or screen, retaining the wet solids as a cake that is then discharged by lifting the bag assembly. This contained discharge method is ideal where product contamination, dust or vapour release must be minimised — typical in pharmaceutical, food, dyestuff and fine-chemical applications. KWS supplies bag lifting centrifuges in capacities from 40 to 250 litres, serving textile, pharma, dairy, and industrial wastewater treatment clients across India.
Key Advantages
Contained product discharge
Bag-lift discharge eliminates open product handling, reducing contamination risk and improving operator safety.
Versatile for fine solids
Effective for fine, delicate crystals, fibrous materials and powdery solids that require gentle handling.
Wide material range
Handles plasters, bluestone, potassium chloride, borax, dyestuffs, pesticides, salts, antibiotics, vitamins, and light metals.
Pharma & food grade options
SS 316L wetted parts with cGMP-compatible surface finish and documentation available for regulated applications.
Technical Specifications
| Types | Bag Lifting (batch) |
|---|---|
| Basket Capacity | 40 L – 250 L |
| Construction MOC | SS 304 / SS 316L |
| Operating Mode | Batch |
| Drive | Electric motor with VFD control |
| Standards | IBR / ASME / cGMP (pharma grade option) |
| Delivery Timeline | 8 – 14 weeks |
Applications
- Pharmaceutical API separation and washing
- Dyestuff, pigment and fine chemical dewatering
- Salt and crystal dewatering in ZLD trains
- Food processing — salt, MSG, vitamins
- Sludge and wastewater solids separation
Frequently Asked Questions
When is a bag lifting centrifuge preferred over a pusher centrifuge?
When the solids are fine, delicate or low-volume, when batch-mode operation is required, or when contained, hygienic product discharge is needed — typical in pharma, fine chemical and food applications where pusher centrifuge throughput is excessive.
What particle size is suitable?
Bag lifting centrifuges handle a wide particle size range, including fine crystals and powders below 0.1 mm that are too small for a pusher centrifuge.
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