Machines Used in the Pharmaceutical Industry

Overview: Equipment Used in Pharmaceutical Manufacturing

Pharmaceutical manufacturing covers a wide range of unit operations — from chemical synthesis of active ingredients to solid-dose forming and sterile fill-finish. The machines used in pharmaceutical industry vary considerably depending on the dosage form (tablets, capsules, injectables, topicals) and the type of manufacturing (continuous or batch, sterile or non-sterile, API synthesis or formulation).

This page covers the core equipment used in pharmaceutical manufacturing, grouped by process step.

1. Reaction and Synthesis Equipment

Reactors are central to API synthesis. Glass-lined reactors are the standard choice for multi-purpose chemical synthesis — the borosilicate glass lining resists acid and organic solvents while the carbon steel shell provides structural strength. SS 316L and Hastelloy reactors handle corrosive feeds where glass-lined construction is not suitable. Used reactors for sale typically range from 50 L pilot vessels to 10,000 L production units.

Condensers and heat exchangers support reaction by controlling temperature and recovering solvents. Shell-and-tube configurations dominate in API plants. Used shell and tube heat exchangers in SS 316L or Hastelloy are common on the second hand market from decommissioned API facilities.

2. Size Reduction

API crystals and excipients often require milling to target particle size before blending. Equipment used in pharmaceutical size reduction:

• Conical mill (Comil) — gentle, low-heat milling for de-lumping granules and sizing crystals
• Hammer mill — higher energy input for coarser size reduction
• Pin mill / air classifier mill — fine milling to sub-100 µm for inhaled products

3. Granulation

Granulators convert fine powders into larger, free-flowing granules with better compression properties. Equipment used in pharmaceutical manufacturing for granulation:

• High-shear mixer granulator — wet granulation in a bowl with an impeller and chopper; fast, batch process
• Fluid bed granulator — granulation and drying in one unit; gentler process, suitable for thermally sensitive materials
• Rapid mixer granulator (RMG) — another term for high-shear wet granulation

Used granulators for sale from pharmaceutical plants frequently come with batch records and equipment history, which aids re-qualification.

4. Blending

Mixers used in pharmaceutical industry span several types depending on the material and process:

• Ribbon blenders — large batch dry powder and granule blending; counter-directional ribbon action gives good uniformity with low shear
• V-blenders (bin blenders) — tumble blending for very free-flowing, friable granules; gentle on particle morphology
• Planetary mixers — planetary mixer used in pharmaceutical industry for high-viscosity applications: wet granulation, cream and ointment manufacture
• Homogenizers — homogenizer used in pharmaceuticals for emulsions, suspensions, and semi-solid topical preparations

5. Drying

Equipment used in pharmaceutical industry for drying:

• Fluid bed dryer — standard for drying wet granules after high-shear granulation; fast, gentle, scalable
• Vacuum tray dryer — vacuum tray dryer for pharma is the preferred choice for thermally sensitive APIs and solvent-wet products; operates under vacuum with heated shelves
• Spray dryer — converts liquid feed (solution or suspension) to dry powder; used for amorphous dispersion manufacturing and microencapsulation
• Lyophilizer (freeze dryer) — critical for biologics, protein APIs, and products sensitive to heat; removes water by sublimation under vacuum

6. Solid-Dose Forming

Tablet presses and capsule filling machines are the workhorses of solid-dose pharmaceutical manufacturing:

• Tablet press — rotary multi-punch presses for high-volume tablet compression; force controlled for weight and hardness
• Capsule filling machine — semi-automatic or fully automatic units fill hard gelatine or HPMC capsules with powder, pellets, or mini-tablets

7. Sterilization

Autoclaves and sterilizers are essential for sterile product manufacturing and equipment sterilization. Steam sterilization (autoclave) is the standard for heat-stable products and equipment. Larger production facilities use industrial autoclaves for bulk sterilization of components and filled product. Used autoclaves for sale range from small laboratory-scale units to large horizontal steam sterilizers.

Vacuum pump used in pharmaceutical industry applications include vacuum drying, distillation under vacuum, and CIP/SIP vacuum break steps.

Buying Used Pharmaceutical Equipment

The second hand pharmaceutical equipment market is well-established. Equipment from decommissioned API plants and solid-dose facilities is widely available through specialist dealers. Key requirements for GMP-compliant purchase:

• Material of construction certificates (MOC) for product-contact surfaces
• Surface finish records (Ra measurement) for SS 316L units
• Equipment qualification documentation (IQ/OQ where available)
• Maintenance and repair history

SIGMA Process Equipment specialises in used pharmaceutical manufacturing equipment and used pharmaceutical machinery for sale. Send us your requirements and we will check current stock with full documentation.