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Pharmag
Wet Granulator

Pharmag
Wet Granulator

Pharmag WG-30 Wet Granulator

The Pharma Test / Pharmag WG-30 Wet Granulator Attachment is designed for research and development, pilot testing (Galenical Labs), and small-batch production. This machine employs the classic oscillating rotor extrusion and sieving principle. A four-bladed rotor at a 90° oscillation angle gently and evenly extrudes wetted mass through a stainless steel screen with pre-set apertures, quickly forming uniform granules. It can also be used for pulverizing and granulating dry materials or for recycling defective tablets. All material contact surfaces are made of corrosion-resistant medical/food grade stainless steel, fully compliant with cGMP, GLP and FDA regulations.


I. It adopts a 4-blade precision stainless steel oscillating rotor and a 90° reciprocating oscillation mechanism, providing an oscillation frequency of 100 to 900 min⁻¹, with a maximum production capacity of 25 kg/h.


II. The front end has built-in dual knurled screws, which can apply uniform tension to each contact area of the screen to ensure that the particle size of the extruded granules is extremely uniform.


III. Features a quick-release, tool-free cleaning and maintenance design. The rotor can be quickly disassembled using the two handwheels at the front. It comes standard with two sets of stainless steel screens, 1.0 mm and 1.6 mm (and offers a variety of optional aperture sizes).


IV. The module can be directly and compactly installed on the UAM universal motor drive unit, and comes standard with a highly transparent acrylic safety cover (Plexiglas Safety Cover), which combines operational visibility with ultimate safety protection.


Equipment Introduction


  • Oscillating Rotor Granulation Principle

    • 90° Reciprocating Swing Shearing and Extrusion: The rotor consists of 4 high-quality stainless steel blades that reciprocate at a 90° angle at high frequency, stably compressing wet powder or soft material through the stainless steel screen mesh to generate round, firm wet particles with a narrow particle size distribution.

    • Multi-process support: In addition to standard wet granulation, it can also be used for dry granulation of soft lumps/microcapsules, or for crushing, recycling and reprocessing substandard tablets using large-pore screens.

  • Uniform tension fine-tuning and dual handwheel quick-release structure (Equal Tensioning & Rapid Cleaning)

    • Uniform tension from double knurled screws: The machine body has two sets of precision knurled screws, which allow operators to precisely adjust and lock the screen curvature, ensuring that all contact surfaces between the screen and the rotor bear completely uniform tension, preventing localized wear and maintaining batch consistency.

    • Front-end dual handwheel quick-release: The front panel is equipped with two sets of ergonomic handwheels, which can quickly disassemble the rotor and screen in seconds without any special tools, making it convenient for deep cleaning, sterilization and material replacement.

  • A wide range of screen aperture specifications and flexible interchangeable sieves.

    • Standard specifications: The factory comes standard with two sets of standard stainless steel mesh with the most common diameters of d = 1.0 mm and 1.6 mm.

    • A wide range of options are available: the manufacturer offers 9 pore sizes from fine to coarse (0.315 mm to 3.15 mm) to meet a wide range of R&D needs, from micro-particles to coarse granules.

  • UAM Direct Attachment & Plexiglas Safety

    • Smooth stepless speed regulation: Directly connected to the UAM universal power unit, smooth stepless speed control is achieved through the unit's touch screen, providing high torque and vibration-free pelleting power.

    • Transparent acrylic safety cover: The standard high-strength transparent acrylic safety cover ensures complete protection for operators while allowing clear observation of material flow and granulation status throughout the process.


Product Features

90° oscillating rotor with double adjusting screw
Tool-free double handwheel quick disassembly and assembly
Standard configuration includes double mesh screens and a transparent safety cover.

Overall Specifications


  • Equipment Name: Swing Rotor Wet Granulator Module (WG-30 Wet Granulator Attachment)

  • Equipment Model: Pharmag WG-30 (Part No. 40-01350)

  • Operating principle: Oscillating rotor granulation, flow through mesh technology.

  • Process support scope:

    • Wet granulation of wetted powders [solid/liquid]

    • Dry granulation and grinding of soft slugs and pellets, rejected tablets, pellets and granulates [solid]

  • Applicable feed material characteristics: wet powders, pastes, doughs, soft slugs, pellets, rejected granules and tablets.

  • Operation Capacity: Up to 25 kg/h (actual capacity depends on feed characteristics, screen aperture, rotation speed and process parameters)

  • Oscillation Frequency: 100 – 900 min⁻¹ (reciprocating oscillation frequency, speed controlled by the UAM host)

  • Rotor Specifications: High-quality stainless steel 4-blade rotor with 90° oscillation angle.

  • Host connection interface: Directly attached to UAM Universal Motor Drive.

  • Safety protection features: Standard configuration includes a transparent acrylic safety cover (Plexiglas Safety Cover, Part No. 426-0050).

  • Contact material characteristics: Corrosion resistant, medical and food grade cGMP compliant material, supporting cGMP sterilization procedures (Corrosion resistant, medical & food grade contact parts, GMP compliant)

  • Standard factory specifications (Scope of Supply):

    • WG-30 wet granulator body (Part No. 40-01350)

    • Special transparent acrylic safety cover (Part No. 426-0050)

    • Standard stainless steel mesh set: 1 set each of 1.00 mm and 1.60 mm (Standard Sieve Set: 1mm & 1.6mm)

  • Optional Sieves (Manufacturer Selectable):

    • 0.315 mm, 0.63 mm, 0.80 mm, 1.00 mm, 1.25 mm, 1.60 mm, 2.00 mm, 2.50 mm, 3.15 mm

  • Instrument dimensions (W x D x H): Approximately 480 x 800 x 680 mm

  • Packaging and shipping dimensions (W x D x H): Approximately 480 x 800 x 680 mm

  • Machine net weight / gross weight: approximately 20 kg / 23 kg

  • Industrial applications:

    • Pharmaceutical industry: wet granulation of antibiotics, general cold medicines, and sustained-release granules; pre-compression granulation and recovery of defective tablets.

    • Traditional Chinese Medicine and Alternative Medicine: Concentrated Extracts and Powders of Chinese Herbal Medicines, Herbal Formula Granules, and Extrusion Granulation of Pills and Soft Materials

    • Chemistry and Fine Chemicals: Granulation of Specialty Chemicals, Catalyst Carriers, and Agrochemical Additives

    • Food industry: Granulation of instant coffee, creamer, seasoning granules, and functional instant powders.

    • Agricultural Technology: Herbicide Microparticles, Biopesticides, Micronutrient Slow-Release Particles

    • Cement and Ceramics: Granulation of Special Ceramic Raw Materials and Granulation of Refractory Powders Before Compressing

    • Cosmetics and cleaning agents: Laundry enzyme granules, pre-pressed powder compacts, bath tablets granules

    • Paints and Pigments: Dust-free pigment granules, granulation of synthetic dyes


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