From closed-design capsule filling and fully servo-driven technology to GMP compliance and stable output. Learn the key technical indicators and maintenance solutions before choosing a pharmaceutical capsule filling machine for a smart, long-term investment.
Whether it's hard capsules or soft capsules, filling efficiency directly determines your pharmaceutical production capacity. The market offers many capsule filling machines, with prices ranging from modest to substantial. For brand owners or contract manufacturers, what actually matters?
An machine is a long-term capital investment. Pick the wrong one, and you face frequent jamming, inaccurate dosages, frequent downtime, and even GMP compliance failures. Understanding what makes a machine truly reliable and efficient matters far more than just comparing price tags.

The capsule filling process involves several steps: empty capsule orientation and sorting, separating cap from body, powder filling, excess powder removal, capsule locking, and finished capsule ejection. At high speeds, maintaining precision and cleanliness at every step is what separates superior automatic capsule filling machines for small business from average ones.
Speed vs. stability – A machine rated for 2,000 capsules per minute that jams frequently may deliver far less usable output than a stable 1,200 cpm unit
Dosage accuracy – Keeping filling variation within ±3% is the minimum standard for high-volume production
GMP compliance – Does it feature a closed dust-proof design? Is it easy to clean without dead corners? This directly affects regulatory approval
If you are comparing capsule filling equipment on the market, Zhejiang Kaixinlong Technology models deserve serious attention. Their design is built around actual pharmaceutical manufacturing needs, not just numbers on a specification sheet.
|
Specification |
Details |
|
Model Series |
NJP-1200 / NJP-2000 / NJP-3500 Automatic Capsule Filling Machine |
|
Output Range |
1,200 – 3,500 capsules per minute (varies by model and filling material) |
|
Capsule Size Compatibility |
Size 00# – 5# (meets multiple pharmacopoeia standards) |
|
Filling Method |
Dosing disc / intermittent / vacuum adsorption (selected based on powder properties) |
|
Empty Capsule Loading Rate |
≥ 99% |
|
Fill Weight Variation |
Within ±3% (meets Chinese Pharmacopoeia and GMP standards) |
|
Machine Design |
Fully enclosed with transparent safety windows; removable worktable |
|
Voltage / Power |
380V 50Hz; main motor power approx. 5-8KW |
|
Model Series |
NJP-1200 / NJP-2000 / NJP-3500 Automatic Capsule Filling Machine |
|
Output Range |
1,200 – 3,500 capsules per minute (varies by model and filling material) |

Many machines claim to be "servo-driven," but the difference lies in control depth. Kaixinlong automatic capsule filling machines manufacturer in China
use advanced servo control systems with independent station drives.
Different powders behave differently – some are cohesive, some are hygroscopic, others are static-prone. This machine allows quick change of dosing discs and tamping pins to accommodate a wide range of powder characteristics, ensuring consistent fill weights from batch to batch.
Cross-contamination is a major risk in pharmaceutical production. The fully enclosed design with transparent viewing panels contains dust inside the machine. An optional integrated dust extraction port can be connected to your facility's central vacuum system.
For handling difficult powders or achieving higher filling speeds, a vacuum-assisted filling system is available. It improves powder flow into the capsule body and reduces fine particle escape.
A Automatic capsule filling machine is only as good as the support behind it. Here is what comes with each unit from Kaixinlong.
Choosing a Automatic capsule filling machine is not just about picking equipment. It is about setting up your production line for consistent output, manageable maintenance, and GMP compliance as your business grows.
Whether you are still deciding on capsule sizes or ready to move forward, we can help. Contact our team to discuss your output targets, powder characteristics, and any custom configuration needs for your next capsule filling machine.
No. of station:26/32/40
Max.tablet diameter:25/16/13mm
No. of station:45/55/75
Max.tablet diameter:25/16/13mm
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