Keypack Intelligent Screw Metering Machine - Precision Powder Metering with 304 Stainless Steel & Teflon Coating
Keypack Intelligent screw metering machine designed for precise powder metering and grain powder metering across pharmaceutical, chemical, and food processing applications. It delivers 15-60 fills per minute with ±0.5% to ±2% accuracy using 304 stainless steel construction, Teflon-coated auger components, and servo motor-driven screw control. Ideal for pharmaceutical powder metering, chemical powder metering, food powder packaging, and eco-friendly powder metering operations handling materials from super fine powder to small granules.
Product Specifications
| Model Range |
KB-L1-10G, KB-L1-15G, KB-L1-25G, KB-L1-50G, KB-L1-70G |
| Hopper Capacity |
10L, 15L, 25L, 50L, 70L (combined hopper options) |
| Weight Range |
1-50g to 10-5000g (depending on model) |
| Packing Accuracy |
≤50g: ≤±2% | 30-100g: ≤±1% | 100-500g: <±1% | >500g: <±0.5% |
| Packing Speed |
15-60 times/minute (smaller models) | 15-45 times/minute (larger models) |
| Power Supply |
3P AC208-415V 50/60Hz |
| Construction Material |
304 stainless steel (all product-contact parts) |
| Coating |
Teflon-coated auger components |
| Drive System |
Servo motor with servo drive control |
| Height Adjustment |
Manual handwheel for easy height regulation |
Product Overview
This screw metering machine utilizes advanced servo motor-driven auger technology to achieve precise volumetric powder metering for pharmaceutical, chemical, and food processing applications. The system operates through a precision-engineered screw mechanism that rotates at controlled speeds to deliver consistent powder doses with exceptional accuracy ranging from ±0.5% for large fills to ±2% for small-dose applications. The Teflon-coated auger components ensure smooth powder flow while preventing material adhesion and cross-contamination between production runs.
Manufactured by Keypack Intelligent (Kunbupack), this powder metering equipment represents a versatile solution for businesses requiring accurate grain powder metering, pharmaceutical powder metering, and chemical powder metering with food-grade safety standards. The complete 304 stainless steel construction ensures compatibility with food products, pharmaceutical compounds, and chemical powders, while the modular auger design facilitates rapid changeovers between different powder characteristics from super fine powders to small granular materials.
The machine's structural design comprises a quick-disconnect combined hopper system available in five capacity options (10L, 15L, 25L, 50L, 70L), a servo motor-driven screw mechanism for precise volumetric control, and a height-adjustable frame with manual handwheel operation. This integrated design ensures consistent powder dispensing across varying material densities and flow characteristics, making it suitable for free-flowing powders, cohesive fine powders, and semi-granular materials in pharmaceutical tablet coating, chemical additive dosing, and food ingredient metering applications.
The eco-friendly powder metering design eliminates material waste through precise dose control and features tool-free hopper disassembly for rapid cleaning and sanitization between product runs. The Teflon-coated metering equipment surfaces prevent powder buildup and enable complete material recovery, supporting sustainable manufacturing practices and reducing environmental impact in powder processing operations. The stainless steel construction provides long-term durability and corrosion resistance, ensuring reliable performance in demanding production environments.
With five model options covering weight ranges from 1-50g up to 10-5000g and metering speeds of 15-60 fills per minute, this screw metering machine balances productivity with precision for small to large-scale powder packaging operations. The servo motor control enables fine-tuning of screw rotation speed and fill volume to optimize performance for specific powder characteristics, while the replaceable auger attachments accommodate diverse material types without requiring complete equipment replacement.
Key Features and Machine Characteristics
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Servo Motor-Driven Screw Control: Precision servo motor and servo drive system delivers accurate volumetric powder metering through controlled screw rotation speed and torque management. This advanced drive technology ensures consistent fill weights regardless of powder density variations, eliminating the inconsistencies common with pneumatic or fixed-speed auger systems. The servo control enables rapid speed adjustments for different fill sizes without mechanical modifications.
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304 Stainless Steel Construction: Complete product-contact surfaces fabricated from 304 food-grade stainless steel ensure corrosion resistance, chemical compatibility, and compliance with pharmaceutical GMP and food safety standards. The non-reactive stainless steel construction supports applications ranging from acidic pharmaceutical compounds to alkaline chemical powders without material degradation or product contamination, meeting FDA and EU regulatory requirements for powder processing equipment.
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Teflon-Coated Auger Components: Advanced Teflon coating on screw metering surfaces prevents powder adhesion, reduces friction, and enables smooth material flow for cohesive fine powders and sticky pharmaceutical compounds. The non-stick Teflon surface minimizes product waste, facilitates complete material discharge, and simplifies cleaning procedures between production runs. This eco-friendly powder metering feature reduces chemical cleaning requirements and supports sustainable manufacturing practices.
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Tool-Free Quick-Disconnect Hopper: Innovative combined hopper design with quick-release mechanism enables rapid disassembly and cleaning without tools, reducing changeover time between different powder products. The tool-free design supports frequent product changes in contract packaging operations and multi-product pharmaceutical facilities, while ensuring thorough sanitization to prevent cross-contamination. Available in five capacity options (10L, 15L, 25L, 50L, 70L) to match production volume requirements.
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Replaceable Auger Attachments: Interchangeable screw components accommodate materials from super fine pharmaceutical powders to small granules and pellets without requiring separate metering machines. The modular auger design includes multiple pitch and diameter options to optimize metering performance for specific powder flow characteristics, particle sizes, and bulk densities. This versatility eliminates the need for multiple dedicated filling machines in multi-product facilities.
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High-Precision Metering Accuracy: Achieves exceptional fill accuracy from <±0.5% for fills above 500g to ≤±2% for small doses under 50g, meeting pharmaceutical USP weight variation requirements and food packaging regulations. The precision metering capability reduces product giveaway, minimizes waste, and ensures regulatory compliance for pharmaceutical powder metering and chemical powder metering applications requiring tight weight tolerances.
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Adjustable Height with Manual Handwheel: Integrated height adjustment system with precision handwheel enables easy vertical positioning to accommodate different bag sizes, container heights, and packaging line configurations. The manual adjustment mechanism provides stable, vibration-free operation while allowing rapid height changes during format changeovers. This flexibility supports integration with various bag-making machines, pre-made pouch fillers, and bottle filling lines.
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Wide Weight Range Capability (1g-5000g): Five model options cover applications from small-dose pharmaceutical sachets (1-50g) to large industrial chemical bags (10-5000g), providing scalable powder metering solutions for diverse production requirements. The broad weight range eliminates the need for multiple specialized filling machines, reducing capital investment and simplifying equipment maintenance in multi-product facilities.
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High-Speed Operation (15-60 fills/minute): Delivers production rates from 15-60 fills per minute depending on model and fill size, balancing speed with accuracy for efficient powder packaging operations. The variable speed capability supports both high-volume food powder packaging lines and precision pharmaceutical powder metering applications requiring careful dose control. Servo motor control enables instant speed adjustments without mechanical modifications.
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Universal Power Compatibility (AC208-415V): Three-phase power supply with wide voltage range (208-415V, 50/60Hz) ensures global compatibility and simplifies installation in facilities with varying electrical infrastructure. The universal power design eliminates the need for voltage converters or transformers, reducing installation costs and supporting international equipment deployment for multinational pharmaceutical and chemical manufacturers.
Application Areas
Pharmaceutical Powder Metering Applications:
- Pharmaceutical powders: antibiotic powder sachets, analgesic powder packets, vitamin powder supplements, probiotic powder doses for pharmaceutical packaging lines
- Active pharmaceutical ingredients (APIs): high-potency drug powder metering for tablet compression, capsule filling preparation, and pharmaceutical compounding operations
- Excipient powders: lactose powder, microcrystalline cellulose, starch powder, magnesium stearate metering for pharmaceutical formulation blending
- Herbal medicine powders: traditional Chinese medicine powder, botanical extract powder, herbal supplement powder for natural health product packaging
- Nutritional supplement powders: protein powder sachets, amino acid powder packets, mineral supplement powder, collagen powder for nutraceutical packaging
- Diagnostic reagent powders: laboratory reagent powder metering, diagnostic test powder dispensing for medical device manufacturing
Chemical Powder Metering Applications:
- Industrial chemical powders: catalyst powder metering, chemical additive dosing, specialty chemical powder packaging for chemical manufacturing plants
- Pigment and dye powders: colorant powder metering, textile dye powder packaging, paint pigment powder dispensing for coating industry applications
- Detergent powders: laundry detergent powder sachets, dishwasher powder packets, cleaning chemical powder for household product packaging lines
- Agricultural chemical powders: pesticide powder packets, herbicide powder sachets, fungicide powder metering for agricultural chemical packaging
- Fertilizer powders: water-soluble fertilizer powder, micronutrient powder sachets, plant nutrition powder for agricultural and horticultural applications
- Cosmetic powders: talcum powder, face powder, body powder, mineral makeup powder metering for cosmetic product packaging
Food Powder Metering Applications:
- Beverage powders: instant coffee powder sachets, tea powder packets, cocoa powder, milk powder for beverage product packaging
- Seasoning powders: spice powder sachets, seasoning mix packets, soup powder, bouillon powder for food service and retail packaging
- Nutritional powders: infant formula powder, meal replacement powder, sports nutrition powder for health food packaging lines
- Baking ingredients: baking powder sachets, yeast powder packets, cake mix powder, bread improver powder for bakery ingredient packaging
- Flavor powders: food flavoring powder, essence powder, sweetener powder, flavor enhancer powder for food manufacturing applications
- Functional food powders: probiotic powder, enzyme powder, dietary fiber powder, superfood powder for functional food packaging
Grain and Granular Material Metering:
- Fine granules: sugar granules, salt granules, granulated sweetener, granulated flavoring for food packaging applications
- Seed powders: vegetable seed powder, flower seed powder, agricultural seed coating powder for seed industry packaging
- Pet food powders: pet vitamin powder, pet supplement powder, pet nutrition powder for animal health product packaging
- Building material powders: cement additive powder, grout powder, tile adhesive powder for construction material packaging
Material and Environmental Considerations:
- Suitable for: super fine powders, fine powders, medium powders, small granules, free-flowing powders, cohesive powders
- Particle size range: from ultra-fine pharmaceutical powders (<50 microns) to small granular materials (2-3mm)
- Bulk density range: handles low-density powders (0.2 g/cm³) to high-density granules (1.5 g/cm³)
- Fill weight range: 1-50g (small models) to 10-5000g (large models) depending on model selection
- Material compatibility: 304 stainless steel suitable for food products, pharmaceuticals, chemicals, and cosmetics
- Teflon coating: prevents adhesion of sticky powders, hygroscopic materials, and cohesive fine powders
- Temperature range: operates with ambient temperature powders; consult for heated or cooled powder applications
- Not suitable for: liquids, pastes, extremely abrasive powders that may damage Teflon coating, materials requiring hermetic sealing during transfer
