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High-Speed Hard Capsule Filling Machine
Product Overview
Definition
The Automatic Capsule Filling Machine, also called a Hard Capsule Filling Machine or Automatic Capsule Filler, is an automated pharmaceutical production system designed for filling empty hard capsules with powder, granules, pellets, and other solid formulations.
Sinoped NJP series capsule filling equipment adopts a rotary structure and negative pressure filling technology to complete the entire capsule production process, including capsule feeding, separation, material dosing, capsule locking, defective capsule rejection, and finished capsule discharge.
The machine is widely used in pharmaceutical factories, nutraceutical manufacturers, healthcare product production lines, traditional Chinese medicine processing facilities, and veterinary medicine industries.
With flexible capsule size compatibility from 000# to 5#, the NJP series pharmaceutical capsule filling machine can handle various formulations such as pharmaceutical powder, herbal extracts, vitamins, minerals, protein powder, pellets, and granulated materials.
How It Works
The Sinoped automatic capsule filling machine works through a rotary intermittent operation system combined with vacuum capsule separation and precision filling technology.
During production, empty capsules are automatically supplied into the capsule loading system and accurately positioned on the rotary filling table. The vacuum system separates the capsule cap and capsule body, preparing the capsule body for material filling.
The filling process uses negative pressure filling technology with precision dosing control. For challenging materials such as lightweight powder, traditional Chinese medicine powder, and plant extracts, the independent servo filling system automatically adjusts filling parameters according to material characteristics to maintain stable dosage accuracy.
After filling, the capsule body and cap are aligned and locked through a flexible two-stage locking structure. The pre-locking process ensures accurate positioning, while the constant-pressure final locking process helps reduce capsule deformation and powder leakage.
The completed capsules are then automatically discharged, while abnormal capsules are detected and removed by the rejection system.
Technical Features of Sinoped Capsule Filling Machine
The NJP series high-speed capsule filler integrates precision filling, clean production design, modular operation, and intelligent control technologies.
The independent servo filling system separates the filling measurement process from the main indexing movement. This structure allows dynamic compensation of material level variation and improves filling consistency, especially when processing low-density powders and difficult-flowing herbal materials.
To meet pharmaceutical cleanliness requirements, the machine adopts a double-layer two-way sealing structure. The upper sealing design reduces external dust entry, while the lower isolation structure prevents lubricant contamination from entering the filling area. This design helps minimize powder accumulation and cross-contamination risks during continuous production.
For capsule protection, Sinoped applies flexible capsule locking technology with pre-locking alignment and constant-pressure final locking. This method is suitable for conventional gelatin capsules as well as plant-based and thin-wall capsules, helping reduce cracking and powder overflow.
The modular filling system allows quick replacement of powder, granule, and pellet filling components. Combined with tool-free cleaning and changeover design, the machine supports multi-product manufacturing environments where production flexibility is required.
Product Specifications
| Parameter | NJP-400 | NJP-800 | NJP-1200 |
| Product Type | Automatic Hard Capsule Filling Machine | Automatic Hard Capsule Filling Machine | High-Speed Capsule Filling Machine |
| Filling Capacity | 24,000 capsules/hour | 48,000 capsules/hour | 72,000 capsules/hour |
| Filling Principle | Negative Pressure Filling | Negative Pressure Filling | Negative Pressure Filling |
| Machine Structure | Rotary Type | Rotary Type | Rotary Type |
| Applicable Materials | Powder, Granule, Pellet, Tablet | Powder, Granule, Pellet, Tablet | Powder, Granule, Pellet, Tablet |
| Capsule Size Range | 000#, 00#, 0#, 1#, 2#, 3#, 4#, 5# | 000#, 00#, 0#, 1#, 2#, 3#, 4#, 5# | 000#, 00#, 0#, 1#, 2#, 3#, 4#, 5# |
| Filling Accuracy | Empty capsule ≥99.9%; Filled capsule ≥99.8% | Empty capsule ≥99.9%; Filled capsule ≥99.8% | Empty capsule ≥99.9%; Filled capsule ≥99.8% |
| Dimension | 980×710×1880 mm | 1060×860×2030 mm | 1180×1000×2140 mm |
Capsule Size Compatibility
Sinoped automatic capsule fillers support multiple hard capsule specifications, covering common pharmaceutical and health supplement requirements.
| Capsule Size | Typical Application |
| 000# | High-dose powder formulations |
| 00# | Pharmaceutical and nutritional supplements |
| 0# | Standard medicine capsules |
| 1# | Healthcare products and supplements |
| 2#–5# | Small-dose formulations |
How to Select the Right Capsule Filling Machine
Selecting a suitable pharmaceutical capsule filling machine mainly depends on production capacity, material characteristics, capsule size, and future production flexibility.
For small and medium-scale production, the NJP-400 provides a compact solution with stable filling performance. The NJP-800 is suitable for manufacturers requiring higher output and continuous operation. For larger pharmaceutical production lines, the NJP-1200 provides higher production efficiency and stronger automation capability.
When filling powder materials with poor flowability, such as herbal powder or plant extracts, a servo-controlled filling configuration is recommended because it provides better control over filling consistency. For pellet or granule products, modular dosing components can be selected according to material properties.
Automatic Capsule Filling Machine vs Semi-Automatic Capsule Filler
| Comparison Item | Automatic Capsule Filling Machine | Semi-Automatic Capsule Filling Machine |
| Operation Mode | Fully automatic | Semi-automatic |
| Production Efficiency | High-speed continuous production | Medium production capacity |
| Labor Requirement | Lower manual operation | Higher operator involvement |
| Filling Stability | Controlled by automatic dosing system | Depends more on manual operation |
| Application | Pharmaceutical factories and large batch production | Laboratories and small production |
Applications
Pharmaceutical Manufacturing
The pharmaceutical capsule filling machine is widely used for producing hard capsules containing pharmaceutical powders, granules, and pellets.
Typical applications include prescription medicines, generic drugs, herbal medicine capsules, and solid dosage pharmaceutical products where accurate filling and production consistency are required.
Nutraceutical and Healthcare Products
The machine is commonly applied in health supplement manufacturing for products such as vitamins, minerals, protein supplements, probiotics, and plant extract capsules.
Its flexible filling capability allows manufacturers to process different powder and granule formulations on the same production platform.
Traditional Chinese Medicine and Herbal Products
For traditional Chinese medicine manufacturers, powder flowability and filling consistency are important production challenges. The Sinoped NJP capsule filling machine uses servo-controlled dosing technology to improve filling stability for herbal powders and extract materials.
Veterinary Medicine Production
The equipment can also be used for animal pharmaceutical products, including veterinary capsules and nutritional formulations.
Installation & Maintenance
The automatic capsule filling machine should be installed in a clean and stable production environment with appropriate electrical supply, compressed air connection, and dust collection facilities.
Before operation, operators should verify capsule feeding, vacuum pressure, filling components, and safety protection systems.
Routine maintenance mainly includes cleaning residual powder, checking moving components, inspecting sealing parts, and maintaining lubrication systems according to equipment requirements.
Regular inspection of the filling station, cam mechanism, servo system, and electrical control components helps maintain long-term operating stability.
Industry Standards and Pharmaceutical Compliance
Sinoped capsule filling machines are designed according to pharmaceutical equipment manufacturing requirements and can be integrated into GMP-oriented production environments.
Commonly referenced standards include:
| Standard | Application |
| GMP | Pharmaceutical manufacturing hygiene requirements |
| ISO 9001 | Quality management system |
| CE | European machinery safety requirements |
| FDA 21 CFR Part 11 | Electronic records requirements when configured |
| cGMP | Pharmaceutical production control requirements |
Actual compliance depends on production configuration, validation requirements, and customer regulatory environment.
Troubleshooting
| Problem | Possible Reason | Solution |
| Capsule separation failure | Insufficient vacuum pressure | Check vacuum system and sealing condition |
| Uneven capsule filling weight | Material flow instability | Adjust filling parameters and dosing components |
| Powder leakage after locking | Incorrect capsule alignment | Adjust locking station |
| Excessive dust generation | Dust extraction issue | Check negative pressure collection system |
| Automatic shutdown | Safety alarm activated | Check control panel alarm information |
| Capsule damage | Excessive locking pressure | Adjust locking parameters |
FAQ
What is an automatic capsule filling machine?
An automatic capsule filling machine is pharmaceutical equipment that automatically fills empty hard capsules with powder, granules, or pellets through integrated capsule feeding, dosing, locking, and discharge processes.
What materials can a capsule filling machine process?
Sinoped capsule fillers can process powder, granules, pellets, micro-pills, vitamins, herbal extracts, and other solid formulations.
What capsule sizes are supported?
The NJP series supports capsule sizes from 000# to 5#, covering most pharmaceutical and nutraceutical capsule applications.
What is the filling capacity of NJP capsule filling machines?
The NJP series provides different production capacities, including 24,000 capsules/hour, 48,000 capsules/hour, and 72,000 capsules/hour models.
Can this capsule filling machine fill traditional Chinese medicine powder?
Yes. The servo precision filling system is designed to improve filling stability for traditional Chinese medicine powder and other low-density materials.
How does the machine reduce contamination risk?
The double-layer sealing structure and negative pressure dust collection system help isolate powder materials and reduce contamination during capsule production.
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