Capsule filling is one of the highest-precision operations in solid dosage manufacturing. Fill weight accuracy directly determines potency compliance — and filling errors that exceed ±3.5% can trigger batch rejection, regulatory action, or patient safety concerns. At commercial speeds of thousands of capsules per minute, the machine's mechanical consistency, dust containment, and cleaning design are what separate compliant production from costly rework.
Canaan supplies a full range of automatic capsule filling machines from 400 capsules/min laboratory scale to 7,500 capsules/min high-speed commercial production — covering powder, granule, pellet, and micro-tablet filling for pharmaceutical, nutraceutical, and health product manufacturers.
Tamping method quantitative filling with three-dimensional adjustment mechanism ensures consistent fill weight batch after batch — meeting pharmacopoeia content uniformity requirements.
CFK series achieves 99% empty capsule qualified rate and over 98% filled capsule qualified rate — minimising material loss and rework on high-volume production lines.
All Canaan capsule filling machines handle the full capsule size range from 000# to 5# — with quick-changeover tooling for multi-product facilities running different capsule sizes.
CAP series program design meets 21 CFR Part 11 requirements — electronic batch records, audit trail, and remote communication capabilities built into the industrial PC control system.
Select your capsule filling machine based on production scale. All models handle powder and granule filling; pellet and micro-tablet filling capability varies by model — contact us to confirm for your specific application.
| Production Scale | Typical Application | Speed Range | Recommended Model |
|---|---|---|---|
| Lab & small batch | R&D, clinical trials, contract filling of small volumes | 400–700 caps/min | CAP Series (CAP400 / CAP700) |
| Mid-scale production | Small to medium pharmaceutical manufacturers; hospital pharmacies; CMO/CDMO | 400–1,200 caps/min | NJP Series (NJP-400 to NJP-1200) |
| High-speed commercial | Large-volume generic and branded pharmaceutical production lines | 1,500–7,500 caps/min | CFK Series (CFK1500 to CFK3500) / NJP-2500 to NJP-7500 |
All Canaan capsule filling machines use intermittent rotary mechanism with tamping-method quantitative filling, supporting capsule sizes 00# to 5# (CFK also supports 000#). GMP/FDA compliant with full auxiliary equipment integration.
Most capsule filling problems — fill weight variation, powder leakage, capsule orientation failure, CIP non-conformances — trace back to equipment design rather than operator error. Here is how Canaan's design addresses these root causes.
Weight variation failures are the leading cause of capsule batch rejection — triggered by dosing disc deformation, uneven powder distribution, or worn tamping pins.
Solution: Three-dimensional adjustment mechanism eliminates dosing plate and copper ring deformation. Multi-surface adjustable powder structure ensures even powder distribution. Fill weight adjustable via tamping pin height.
Powder leaking from the turret assembly contaminates the production environment, creates cross-contamination risk between products, and triggers GMP non-conformances.
Solution: NJP fully enclosed turret with dual-shaft imported silicone sealing rings minimises powder leakage from back-and-forth shaft movement. CFK high-seal design option available for potent compounds.
Capsules that fail to separate cap from body at the separation station will not be filled — and if the rejection station misses them, unfilled capsules contaminate the filled batch.
Solution: Dedicated rejection station with reciprocating pusher pin detects and ejects any capsule where cap-body separation failed — before the closing station — with vacuum removal to a separate chamber.
Changing capsule size tooling on traditional machines requires extensive disassembly — reducing OEE on multi-product CMO or pharma lines where size changeovers happen frequently.
Solution: CAP series three-door design and patented quick-release powder ring (no lateral screws) dramatically reduce changeover and cleaning time. NJP dual-shaft pressure cap design allows disassembly without opening the turntable.
All Canaan capsule filling machine series handle the standard pharmaceutical capsule range from 00# to 5#, covering the full spectrum from the largest (00#, approximately 950 mg fill capacity) to the smallest (5#, approximately 95 mg fill capacity). The CFK series additionally supports 000# extra-large capsules. Size changeovers require tooling changes — contact us for changeover time and tooling availability for your target capsule sizes.
All Canaan capsule filling machines achieve a filling deviation of ±2.5%–±3.5% using the tamping method for quantitative filling. The tamping pins compress powder in the dosing disc through multiple sequential tamping cycles, with excess powder scraped from the dosing disc surface to ensure the powder column meets the measurement requirement before ejection into the capsule body. The fill weight is adjusted by changing the height of the tamping pins. For fill weights greater than 0.3 g, variation is controlled within ±3%. For tighter tolerances on specific formulations, contact our process engineers.
Yes, Canaan capsule filling machines can be configured for pellet filling and micro-tablet filling in addition to standard powder and granule filling. Pellet filling requires a different filling mechanism (dosing tube or volumetric disc) compared to powder tamping — specify your fill material type when requesting a quotation so we can confirm the correct tooling configuration. NJP series applications include powder, granules, pellets, and micro-tablets for pharmaceutical and nutraceutical capsule production.
Canaan capsule filling machines can be connected upstream and downstream to a complete capsule production line. Upstream: automatic capsule feeder, vacuum powder feeder, or lifter-type powder feeder. Downstream: in-line weighing machine (for 100% weight check), capsule polisher (for appearance), metal detector (for contamination detection), and elevator (for connecting to packaging lines). These integrations are available as optional auxiliary equipment — specify your line integration requirements when requesting a quotation.
The CAP series (400–700 caps/min) is designed for laboratory, R&D, and small-batch production where 21 CFR Part 11 compliance, fast changeovers, and batch record keeping are priorities. The NJP series (400–7,500 caps/min) covers the broadest range from hospital pharmacy to ultra-high-speed commercial production — it is the standard choice for most pharmaceutical manufacturers. The CFK series (90,000–210,000 caps/hr) is optimised specifically for high-volume commercial lines with the highest throughput requirements. If your target output falls within the NJP range, the NJP is typically the recommended starting point; if you need 000# capsule support or the specific CFK features, go with CFK.
Yes. Canaan capsule filling machines are compatible with both standard gelatin capsules and HPMC (hydroxypropyl methylcellulose) vegetarian capsules in the same size range (00# to 5#). HPMC capsules have different physical properties — they are more brittle and have lower moisture content than gelatin capsules, which can affect the separation and closing process. The machine settings (vacuum, closing pressure) may need adjustment for HPMC capsules compared to gelatin. Contact our application engineers for HPMC-specific process recommendations for your capsule supplier and fill formulation.
Tell us your target output (caps/min), fill material type (powder / granule / pellet), capsule size, and compliance requirements — our engineers will recommend the right model and provide a detailed quotation within 24 hours.
✓ Response within 24 hours ✓ Dedicated capsule filling engineer ✓ NDA available on request
Capsule filling is one step in your solid dosage line. Canaan supplies the complete upstream and downstream equipment — all built to the same cGMP standard.
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