Industrial Small-Dose Powder Filling Machine

Precision Volumetric & Gravimetric Filling for High-Value, Free-Flowing and Cohesive Powders

Product Identification & Core Specifications

The Small-Dose Powder Filling Machine is engineered for accurate micro-dosing applications ranging from 50mg to 50g. Built for pharmaceutical, nutraceutical, and diagnostic reagent sectors, this machine bridges the gap between laboratory-scale precision and industrial throughput.

Technical Parameters

Specification	Standard Configuration	Optional Customization
Filling Range	50mg – 20g	Up to 50g
Filling Accuracy	+/- 0.5% - 1.0% (Depending on powder bulk density)	High-precision load cell feedback (+/- 0.2%)
Output Speed	20 – 60 units/min	Multi-head configurations up to 120 units/min
Hopper Capacity	5L (Quick-release design)	10L with automated agitation
Contact Materials	SS316L (Product contact), PTFE	Hastelloy C276 for corrosive active ingredients
Power Supply	220V/110V, 50/60Hz, Single Phase	Customized per regional electrical standards

Product Selection Guide: Choosing the Right Dosing Mechanism

Selecting the correct dosing principle prevents production bottlenecks and material waste.

Auger Dosing (Screw Feed)

Best for: Semi-free-flowing and cohesive powders (e.g., herbal extracts, fine chemical blends).
Mechanism: Servo-driven screw rotations calculate exact volume per fill.

Vibratory Micro-Dosing

Best for: Free-flowing crystalline powders or fragile granules.
Mechanism: Electromagnetic vibration feeds powder into a micro-pan with direct weight verification.

Vacuum-Pressure Dosing (Dosator Principle)

Best for: Capsule filling lines and extremely small doses (under 500mg) requiring high repeatability without compression.

Application Matrix

Industry Sector	Typical Application	Material Characteristics Addressed
Pharmaceuticals	API (Active Pharmaceutical Ingredient) filling into vials/capsules	High value, strict contamination control, low tolerance for error
Nutraceuticals	Nootropic stacks, vitamin pre-mixes in small sachets or bottles	Hygroscopic, prone to static buildup
Diagnostics (IVD)	Enzyme powders, diagnostic test kit reagent dispensing	Ultra-small volume (mg level), high precision requirement
Specialty Chemicals	Catalyst powders, fine metal powders	Dense, abrasive, or toxic dust containment

Engineering & Material Integrity

Reliability in industrial manufacturing comes down to metallurgical control and mechanical execution.

Surface Treatment: All product-contact surfaces undergo mechanical polishing to Ra <= 0.4 um, eliminating micro-crevices where powder can accumulate and degrade.

Static Elimination: Integrated ionizing bars neutralize electrostatic charges inherent in fine powders, ensuring consistent fill weights.

Dust Containment: Enclosed filling head coupled with a negative pressure dust-extraction port prevents active ingredient dispersion and protects operator safety.

Tool-Free Disassembly: The hopper, auger screw, and funnel can be disassembled, cleaned, and sterilized within 10 minutes, minimizing changeover downtime.

Supplier Evaluation & Quality Assurance

Procuring capital equipment from overseas requires verifiable quality control standards.

Machining & Inspection

Core components (auger screws and funnels) are machined via 5-axis CNC centers to maintain strict dimensional tolerances (+/- 0.01 mm).
Each machine undergoes a 48-hour continuous dry-run test before leaving the factory.

Compliance & Documentation

CE Certified (Conforms to EU Machinery Directive 2006/42/EC and EMC Directive).
cGMP compliant design with full material traceability (3.1 Material Test Certificates provided for SS316L parts).
Full IQ/OQ documentation package available for pharmaceutical validation.

Frequently Asked Questions

Q: How does the machine handle powders that tend to bridge or clump?

A: The hopper is equipped with an independent, low-shear variable-speed agitator that conditions the powder before it enters the auger screw, preventing bridging and maintaining uniform bulk density.

Q: What is the minimum batch size or minimum fill weight testable?

A: We regularly test down to 50mg with an accuracy deviation of less than +/- 1%. We recommend sending 500g of your raw material to our facility for a complimentary powder test and video report prior to order finalization.

Q: What validation documents are provided for pharmaceutical audits?

A: We supply a comprehensive documentation package including Material Certificates (3.1), Welder Qualifications, Calibration Certificates for load cells, Electrical Schematics, and standard IQ/OQ protocols.

Q: How is remote technical support handled for overseas installations?

A: Equipment includes an industrial PLC with an Ethernet port for remote diagnostics. Our engineers provide step-by-step video guidance, and critical spare parts (such as seals and drive belts) are shipped via express courier within 48 hours.

Request a Technical Quotation & Powder Testing

To receive a formal quotation tailored to your production line, please prepare the following parameters for our engineering team:

Material bulk density (g/cm^3) and flow characteristics.

Target filling weight and acceptable tolerance range.

Required speed (units per minute) and container type (vial, bottle, capsule, sachet).

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