Paddle dryer · Pharmaceutical
Paddle dryer for the Pharmaceutical industry
Contained drying of API intermediates, carbonates and pharma process sludge – vacuum and solvent-recovery options.
- Typical feed
- Solvent-wet cake, API intermediates, ETP sludge
- Heating
- Hot water, steam or thermic fluid
- Contact parts
- SS 316L, polished finish
- Mode
- Vacuum with solvent recovery
- Talk to an application engineer
- +91 99090 33851
The challenge
The Pharmaceutical drying problem
- ✕Heat-sensitive products need tight temperature control
- ✕Solvents must be contained and recovered
- ✕Cleaning and changeover between products
With an AS Engineers paddle dryer
Pharmaceutical drying demands product integrity, containment and controlled temperature.
Why a paddle dryer fits
- Low-shear, low-speed mixing protects the product
- Vacuum operation for heat-sensitive material
- Electropolished, buffed finishes for cleanability
- Closed system reduces operator exposure
Typical process
Solvent-wet cake is dried under controlled temperature and vacuum; vapours are condensed; dry product leaves to contained packing.
Materials we dry
What we dry for the Pharmaceutical industry
- Calcium carbonate
- Sodium carbonate
- API intermediates
- Pharma process sludge
- Not listed? Ask us about your material
Inside the dryer
From sticky cake to dry granules – one continuous pass
Wet cake
Dark, heavy, sticky lumps enter the hopper.
Plastic phase
Heat softens it; paddles knead and stretch.
Shearing phase
Paddles shear the mass into crumbs.
Dry granules + powder
Free-flowing granules and fines discharge.
Illustrative moisture along the dryer. Dried output goes to fuel · cement kilns · bricks · agriculture.
On video
Pharmaceutical trials on video
More industries
Other industries we serve

Chemical Industry
Salts, hydroxides and process cakes dried in an enclosed, corrosion-resistant system with optional solvent recovery.
- Aluminium hydroxide
- Sodium chloride
- Ammonium nitrate

Environment Industry (ETP · STP · CETP)
Dry ETP, STP, CETP and bio-sludge – up to 90% less volume to haul, store and dispose.
- ETP sludge
- STP sludge
- Bio-sludge

Food Processing Industry
Hygienic, gentle drying of starch, spent grain and food by-products into stable, saleable material.
- Starch
- Spent grain
- Calcium carbonate

Pharmaceutical Industry
Contained drying of API intermediates, carbonates and pharma process sludge – vacuum and solvent-recovery options.
- Calcium carbonate
- Sodium carbonate
- API intermediates
Tell us your sludge. We will size your paddle dryer.
Share quantity and moisture – get a technical proposal, payback estimate and pilot-trial option within one working day.
