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How to Choose a Hard Capsule Filling Machine

A practical guide to capsule sizes, dosing technology, NJP capacity by station count, GMP materials, and matching NJP-800/1200/2000/3800 models to your output.

CEcGMPISO 9001:2015FDA 21 CFR Part 11

1. Start With Capsule Size & Type

Confirm the capsule sizes you will run before specifying a filler. YohoAI NJP machines handle sizes #000 to #5 in both gelatin and HPMC shells, with tool-free size change in 20-30 minutes. If you also pack pellets or micro-tablets, choose a model with dedicated pellet dosing needles.

2. Dosing Technology: Tamping Pin vs Pellet

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5-Time Tamping Pin

Compresses powder and granules into uniform plugs, handling poor-flowing herbal powders and micronized APIs with +/-3-5% accuracy.

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Pellet & Combination Fill

Dedicated pellet needles protect pellet integrity; dual chambers run powder-and-pellet combinations in one capsule body.

3. Capacity: Match Stations to Output

NJP-800
30-60k/hr

8 stations, R&D and small batch

NJP-1200
48k/hr

10 stations, medium scale

NJP-2000
120k/hr

14 stations, up to 150k opt

NJP-3800
228k/hr

18 stations, 24/7 industrial

4. Filling Accuracy & Rejection

All NJP models deliver +/-3-5% fill weight. Unfilled, partially filled, and malformed capsules are automatically ejected, so only compliant units reach the bottle. Higher-station models add inline weight monitoring for tighter process control.

5. Changeover & Footprint

Size change between #000 and #5 takes 20-30 minutes without special tools. Footprints range from 1.0 x 1.2 m (NJP-800) up to 2.0 x 2.0 m (NJP-3800), so the line fits R&D labs through full commercial cleanrooms.

6. GMP Materials & Construction

Product-contact parts are 316L stainless steel with Ra <=0.4 um surface finish, CIP-compatible, with full DQ/IQ/OQ/PQ validation protocols included. Certifications: CE, cGMP, ISO 9001:2015.

7. Automation, Data & Compliance

HMI recipe management stores 100-200 production recipes; the NJP-3800 adds SCADA integration with electronic batch records. Optional FDA 21 CFR Part 11 features provide audit trails and role-based access control for regulated plants.

8. Match Yoho NJP Models

Pick by output and format: NJP-800 for labs, NJP-1200 for mid-volume powder plus pellets, NJP-2000 for high-volume combinations, NJP-3800 for 24/7 mega-scale with data integrity.

ModelTypeCapacityStationsBest for
NJP-8008-station rotary30-60k caps/hr8R&D, small batch
NJP-1200Dual dosing48k caps/hr10Powder + pellets, mid
NJP-200014-station120k (150k opt)14High volume, combos
NJP-380018-station, SCADA228k caps/hr1824/7 industrial
YohoAI NJP Series hard capsule filling machine

Frequently Asked Questions

What capsule sizes can the NJP filler handle?

NJP machines handle sizes #000 to #5 in both gelatin and HPMC shells. Size change between any of these takes 20-30 minutes without special tools, so one filler serves most standard supplement and pharmaceutical capsules without re-engineering. Dedicated pellet and micro-tablet dosing needles extend the platform to combination formats.

What production capacity do I need?

NJP-800 runs 30-60k caps/hr on an 8-station turret, NJP-1200 reaches 48k/hr on 10 stations, NJP-2000 hits 120k/hr (150k optional) on 14 stations, and NJP-3800 delivers 228k/hr on 18 stations. Choose the station count that matches your daily volume plus changeover headroom, and scale up as export orders grow.

What materials can it fill?

The NJP series fills powder, granules, pellets, micro-tablets, and combinations. A 5-time tamping pin cycle densifies poor-flowing herbal powders and micronized APIs into a uniform plug, while dedicated pellet needles protect pellet integrity. The NJP-1200 and NJP-2000 add dual-chamber powder-and-pellet combination filling in one capsule body.

What is the filling accuracy?

All NJP models hold +/-3-5% fill weight. Unfilled, partially filled, and malformed capsules are automatically ejected during operation, so only compliant units reach the bottle. Higher-station models add inline weight monitoring that tightens process control and documents every production run for audit and release decisions.

Is the equipment GMP compliant?

Yes. Product-contact parts are 316L stainless steel with Ra <=0.4 um surface finish, CIP-compatible, and every machine ships with full DQ/IQ/OQ/PQ validation protocols. YohoAI NJP lines are CE marked, cGMP, and ISO 9001:2015 certified, and optional FDA 21 CFR Part 11 features support regulated manufacturing.

How long is changeover?

Size change between #000 and #5 takes 20-30 minutes with tool-free tooling and no special fixtures. Recipe switching on the HMI is instant, so mixed-product weeks are practical without long downtime between batches. The quick-change design also reduces operator training time and spare-parts inventory.

What about data integrity and FDA rules?

The HMI stores 100-200 production recipes and batch logs for traceability. The NJP-3800 adds SCADA integration with electronic batch records, and optional FDA 21 CFR Part 11 features provide audit trails, electronic signatures, and role-based access control. This makes the NJP platform suitable for GMP-inspected pharma plants.

Do you provide validation documents and support?

Every NJP machine ships with DQ/IQ/OQ/PQ protocols and EN 10204 3.1/3.2 material certificates. YohoAI engineers provide on-site installation, commissioning, and operator training so your line is audit-ready from day one. With exports to 30+ countries, service and spare parts are coordinated globally across time zones.

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