Hard Gelatin Capsule Filling Machine

A Hard Gelatin Capsule Filling Machine, also known as a capsule filler or encapsulator, is specialized equipment used primarily in the pharmaceutical, nutraceutical, and supplement industries to fill empty hard gelatin capsules with precise doses of powders, granules, pellets, mini-tablets, liquids, or semi-solids. These capsules consist of two interlocking halves made from gelatin derived from animal collagen, water, and sometimes colorants or plasticizers. The machines automate the process of orienting, opening, filling, and closing the capsules, ensuring accuracy, consistency, and compliance with standards like GMP and pharmacopeia requirements.

Hard gelatin capsules are preferred for their ease of swallowing, tamper-evident design, and ability to mask bitter tastes or odors. They are widely used for oral solid dosage forms in drugs, vitamins, and herbal supplements.

Manual Capsule Filling Machine Video

How Does It Work?

The working principle of a hard gelatin capsule filling machine involves a step-by-step automated or semi-automated process:

1. Capsule Feeding and Orientation: Empty capsules are loaded into a hopper and oriented using mechanical vibrations or gravity.

2. Separation and Transfer: The machine separates the cap from the body and transfers the bodies to a dosing station.

3. Filling: The precise amount of material is dosed into the capsule body. For powders/granules, tamping pins compress the fill into slugs; for liquids or pellets, specialized dosers are used. Filling accuracy is typically ±3-5% of the target weight.

4. Closing and Ejection: The caps are rejoined with the filled bodies, and the completed capsules are ejected onto a conveyor for further processing.

5. Cleaning and Inspection: Integrated systems often include dust removal, weight checks, and rejection of defective capsules.

Most machines operate intermittently or continuously, with safety features like overload protection and automatic shutdown for material shortages. The process minimizes dust and ensures high precision, especially for heat-sensitive or hygroscopic materials.

Key Features and Specifications

• Capsule Sizes: Compatible with standard sizes 000 to 5; most handle 00 to 4.

• Filling Accuracy: Meets USP/EP standards; uses volumetric or auger dosing.

• Materials: Stainless steel construction for hygiene; CE/GMP/ISO certified.

• Safety and Efficiency: Touchscreen controls, variable speed, low noise, and energy-efficient.

• Add-Ons: Capsule polishers, vacuums for dust control, and vision systems for defect detection.

• Challenges Addressed: Handles incompatible materials via two-phase fills; prevents cross-linking for solubility control.

Applications and Benefits

• Industries: Pharmaceuticals, nutraceuticals, and cosmetics.

• Benefits:

  • High throughput reduces labor costs.

  • Precise dosing ensures uniform drug release and bioavailability.

  • Versatile for R&D to commercial scale; supports clinical trials.

  • Quality: Minimizes contamination; easy cleaning for batch changes.

For special formulations, techniques like formalin treatment or coatings adjust solubility, and machines can fill semi-solids or liquids with adapters.

Salient Features of Manual Capsule Filling Machine

• Compact Model.

• Option of Stainless Steel 304 and 316 materials constructions.

• Universal design hence easy to operate and easily service available.

• Powder tray provided for spillage free filling of powder.

• Interchangeability to different capsule size format parts.

• Machine suitable for hard gelatin capsules, veg capsules and HPMC capsules.

• Power with different bulk density can be filled easy through multiple press option.

• Option of Manual Capsule Loader as well as Auto Capsule Loader for loading empty capsules onto loading tray.

• Tablet Filling Attachment can be offered optionally to fill tablets into capsules.

• IQ/OQ documentation can be provided.

Process Operation of  Manual Capsule Filler Machine

Adinath is one of the leading manual capsule filling machine manufacturers in India. We are giving here below step-by-step process guide of Capsule Filling Machine:

• Place empty capsules onto the loading tray and place tray onto the machine. Check the front knob it should be turned to the right.

• Pull locking lever forward. Push down long handle which will lifts the caps off all the bodies. Set aside the tray containing all the caps.

• Push locking lever back, by which capsule bodies will drop down and become level with filling surface.

• Place powder tray on filler keeps powder from spilling.

• Pour & spread the pre-measured powder. Move extra powder onto powder tray’s shelf. Lower tamper and lock.

• Turn handle to compress powder: this allows you to fill more powder in each capsule.

• Raise tamper & spread extra powder from shelf into capsules ensures uniform fill weights.

• Return the tray containing caps to filler. Turn front knob to the left and lower locking plate. Engage lock for locking plate.

• Hold tamper handle and push down on long handle. Bodies are pushed up into caps: all the capsules are now locked in one step.

• Disengage lock for locking plate. Lift locking plate and turn front knob to the right.

• Push down long handle and remove tray of completed capsules.

• Capsules are filled now. You can turn tray and all the capsules will get out from the tray.

Technical Specification of Manual Capsule Filling Machine

* Power voltage can be adjusted as per customer’s domestic power voltage requirements.
* Rights of technical improvements & modification reserved.
* Illustrations & dimensions are shown for information purpose only.