Granule Sizer
Solid Preparation
Oscillating Granulator
Model: OLG Series
1. Product Overview
An Oscillating Granulator (also known as an oscillating mill or sizing machine) is key equipment in pharmaceutical solid dosage production, used primarily to size dried wet granules, dry granules, and lump materials into uniform particles, or to re-process out-of-specification granules. The oscillating granulator forces material through a screen mounted on a rotating drum, applying extrusion and shearing actions to produce granules with uniform particle size distribution, meeting the process requirements for subsequent tablet compression, capsule filling, and other operations. It is widely used in pharmaceutical, food, and chemical industries for granule sizing, crushing, and classification.
Key Features
- Uniform granulation with controllable particle size distribution and high yield
- Quick screen replacement design, easy cleaning, GMP compliant
- Variable frequency speed control, adaptable to different material characteristics
- Fully enclosed structure, preventing dust escape, protecting operating environment
- Suitable for both wet and dry granule sizing
2. Working Principle
Wet Granule Sizing
Wet granule sizing: Dried wet granules are fed from the top of the granulator. Through the oscillating motion of the rotating drum, material is forced through the screen openings and sized into uniform granules under extrusion and shearing actions. Screen aperture can be selected based on target particle size, typically 0.5–5.0mm. During wet granule sizing, the moderate moisture content ensures high sizing efficiency and regular granule shape.
Dry Granule Sizing
Dry granule sizing: Dry granules or agglomerated materials are sized through the shearing action between the drum and screen. Feed rate and drum speed must be controlled during dry granule sizing to prevent over-crushing that generates excessive fines. Dry granule sizing is typically performed before tablet compression, capsule filling, and similar downstream processes.
Lump Material Crushing
Lump material crushing: For hard lumps or agglomerates formed during drying, the granulator can first perform coarse crushing through a large-aperture screen, then switch to a smaller aperture screen for fine sizing, completing the lump sizing process in stages.
3. System Classification
By Working Method
1. Oscillating Granulator
2. Rotary Granulator
3. Claw-type Granulator
By Equipment Type
1. Laboratory type (0.5–5kg/batch)
2. Pilot type (5–50kg/batch)
3. Production type (50–500kg/batch)
By Application Field
1. Pharmaceutical Industry
2. Food Industry
3. Chemical Industry
4. Nutraceutical Industry
4. Detailed Technical Parameters
Basic Parameters
| Parameter | Specification |
|---|---|
| Model | OLG-100 / OLG-200 / OLG-300 / OLG-400 |
| Production Capacity | 30–500 kg/h |
| Drum Diameter | 100–400 mm |
| Drum Speed | 50–500 rpm (VFD adjustable) |
| Screen Aperture | 0.5–5.0 mm (replaceable) |
| Feed Particle Size | ≤30 mm |
| Discharge Particle Size | 0.5–5.0 mm |
Granulator Parameters
| Model | Drum Dia.(mm) | Capacity(kg/h) | Power(kW) | Screen Aperture(mm) | Weight(kg) |
|---|---|---|---|---|---|
| OLG-100 | 100 | 30–80 | 0.75 | 0.5–3.0 | 120 |
| OLG-200 | 200 | 80–200 | 1.5 | 0.5–4.0 | 250 |
| OLG-300 | 300 | 150–350 | 2.2 | 0.5–5.0 | 400 |
| OLG-400 | 400 | 250–500 | 3.0 | 0.5–5.0 | 600 |
Dimensions
| Model | Length(mm) | Width(mm) | Height(mm) |
|---|---|---|---|
| OLG-100 | 600 | 500 | 900 |
| OLG-200 | 800 | 650 | 1000 |
| OLG-300 | 1000 | 800 | 1200 |
| OLG-400 | 1200 | 950 | 1350 |
Material Properties
| Component | Material | Description |
|---|---|---|
| Drum | SUS316L | Electropolished, Ra≤0.4μm |
| Screen | SUS316L | Quick-release design, easy replacement and cleaning |
| Housing | SUS304 | Fully enclosed, mirror polished |
| Seals | Silicone/PTFE | FDA certified, temp range -20–200℃ |
5. Core Component Selection
Sizing Drum
Manufactured from SUS316L stainless steel, electropolished surface, Ra≤0.4μm. The drum surface features regularly arranged tooth grooves that work with the screen to provide efficient shearing and sizing. Quick-release design for easy cleaning and replacement.
Screen System
SUS316L stainless steel screen, aperture 0.5–5.0mm optional. Quick-release clamp fixation, replacement time under 3 minutes. Polished screen surface prevents material adhesion, ensuring sizing quality.
Drive System
VFD motor drive, speed adjustable 50–500rpm, adaptable to different material characteristics. Fully sealed transmission system, lubricant does not contact material area, GMP compliant. Reducer brand options: SEW/NORD.
Feed System
Open-top or enclosed feed inlet optional. Enclosed inlet equipped with quick-connect fitting for closed connection with upstream/downstream equipment, preventing dust emission. Feed rate adjustable via baffle.
Control System
SIEMENS/AB PLC controller, 7–10 inch touchscreen HMI, supporting speed adjustment, run time setting, and alarm functions. Optional data logging function, 21 CFR Part 11 compliant.
6. Typical Application Fields
Pharmaceutical Sizing
Post-wet granulation dried granule sizing, post-dry granulation granule sizing, pre-compression granule sizing, pre-capsule filling granule sizing, rework granule re-sizing
Food Industry
Seasoning granule sizing, instant beverage granule sizing, food additive granule sizing
Chemical Industry
Catalyst granule sizing, pesticide granule sizing, chemical raw material granule sizing
Nutraceutical Industry
Vitamin granule sizing, mineral granule sizing, protein powder granule sizing
7. Design Standards & Certifications
Compliant with the following standards and certifications
1. GMP (Good Manufacturing Practice)
2. FDA 21 CFR Part 210/211
3. ISO 9001 / ISO 14001
4. CE Certification
5. GB/T 28669-2012 General Technical Requirements for Pharmaceutical Machinery
8. Custom Optional Configurations
| Option | Details |
|---|---|
| Drum Type | Standard tooth / Fine tooth / Coarse tooth |
| Screen Specification | 0.5/1.0/1.5/2.0/2.5/3.0/4.0/5.0mm |
| Feed Method | Open / Enclosed / Vacuum feeding |
| Material Upgrade | Full SUS316L / Titanium alloy |
| Control Mode | Manual / Semi-auto / Full-auto PLC |
| Explosion-proof | Ex d IIB T4 (optional) |
| CIP | CIP connection (optional) |
9. Warranty Terms
| Equipment Status | Warranty Period | Warranty Scope |
|---|---|---|
| New Equipment | 12 months | Drum, screen, drive system, electrical components |
| Refurbished Equipment | 6 months | Drive system, electrical components |
10. Packaging & Delivery
| Item | Packaging Method |
|---|---|
| Main Unit | Anti-rust treatment, plastic film wrapped, wooden crate secured |
| Screen & Spare Parts | Individually sealed packaging, impact protected |
| Electrical Box | Moisture-proof treated, individually packaged |
| Accompanying Documents | Waterproof bag sealed |
Lead time: New equipment 60–90 working days; Refurbished equipment 30–45 working days.
11. Information Required for Inquiry
To receive an accurate quotation, please provide the following information:
Material name and characteristics (hardness, moisture content)
Target particle size range
Required production capacity (kg/h)
Feed particle size range
Screen aperture requirements
Material requirements (SUS304/SUS316L)
Control mode preference
Local voltage and frequency
Explosion-proof requirements (if needed)
Equipment preference: New/Refurbished
Budget range and brand preference
Delivery terms and destination port