The A to Z Guide to Gel Capsule Filling Trays

Automation has been the norm in the pharmaceutical world for quite some time now. Modern encapsulation machines can churn out thousands of pills and capsules per hour, and that’s impressive.

But here’s the thing: manual capsule filling trays still have a major role to play, especially in the early stages of production or in facilities that produce a diverse variety of medicines.

If you’re in an R&D lab testing a new formula, or a supplement startup trying out custom herbal blends, you probably don’t need (or want) a bulky, expensive machine.

Instead, you need something that gives you control, precision, and ease of use. And that’s what a capsule filling tray does.

In this blog, we’ll break down everything you need to know about gel capsule filling trays, starting from how these trays actually work, to what to consider before buying them, and how Chemtech International supports both established manufacturers and emerging formulators with high-quality equipment built for serious use.

Let’s begin by understanding what capsule fill trays are.

What Is a Gel Capsule Filling Tray?

A pill capsule filling tray is a simple, manual device designed to help you fill empty capsules, usually gelatin or vegetarian, with powders. These are most commonly used for batch sizes of 50, 100, or 200 capsules at a time.

Here’s how the process usually works:

1. You load the capsules into the tray, usually base-down.
2. The tray helps you separate the cap from the body.
3. You then fill the lower half (the body) with powder, using a tamper or spreader to distribute the contents evenly.
4. Finally, the cap is placed back on and the capsule is closed manually or with a simple press.

They’re commonly used for capsule sizes like 00, 0, and 1, which are typical for most nutraceuticals and prescription applications.

👉 At Chemtech, we supply commercial-grade gel capsule drying trays built specifically for pharmaceutical, nutraceutical, and R&D use cases. These are the same trays you’ll find in GMP-compliant environments.

Who Needs Capsule Filler Trays?

Capsule filler trays may look simple, but the user base is quite diverse. Here’s a look at some applications where soft gel cap trays prove indispensable:

• Pharmaceutical Labs: For compounding custom dosage forms, especially when individual patient needs vary
• Nutraceutical Brands: For small batch vitamins, herbal blends, or unique supplement stacks
• R&D Teams: Perfect for experimental batches or short-run pilot studies
• Veterinary Pharmacies: For specialty doses or hard-to-find medications for animals
• Specialty Compounding Pharmacies: When formulations are too niche or variable for automated systems

The key advantage of these capsule filler trays? Sheer range of purpose.

Capsule fill trays allow for testing and small-scale production of capsules without the overhead or complexity of automation. It’s especially useful when you’re still in the formulation or proof-of-concept phase. However, that’s not all. These trays are equally useful during the softgel drying phase of the process.

Capsule Filling Tray vs. Capsule Filling Machine: What’s the Difference?

This is a question we hear often, and it’s a valid one. While both serve the same end goal of filling capsules, they do it in very different ways.

Capsule filling trays have these characteristics:

• Manual operation
• Low initial investment
• Minimal space requirement 
• Flexibility for small production runs or testing new formulations

Whereas capsule filling machines have these attributes:

• Automation (or semi-automation)
• Higher upfront cost
• Suitability for mass production
• Training and installation space requirements

A lot of businesses actually start with a capsule filling tray, especially during the R&D phase or when validating a formulation. Once they scale up, they add automation, but the tray never becomes obsolete. It remains a valuable tool for short runs or unique orders.

What to Look for in a Capsule Filling Tray

As not all the capsule filling trays are created equal, here’s what you need to think about before choosing one…

1. Capsule Size Compatibility

Make sure the pill capsule filling tray you choose supports the capsule sizes you work with most often, be it 00, 0, 1, or even smaller sizes like 3 or 4, if needed.

2. Batch Capacity

Choose between 50, 100, or 200 holes depending on how many capsules you typically need to fill in one go. For larger operations, higher capacity trays save time.

3. Material

• Plastic: Lightweight, affordable, but may wear faster over time
• Stainless Steel: Durable, easy to sterilize, preferred in sterile environments
• Acrylic: Transparent, moderately durable, often used in visual inspection setups

4. Features You Should Prioritize

• Smooth capsule alignment and separation
• A fast and secure capping mechanism
• Compatibility with tampers and spreaders
• Made from food-safe or pharma-grade materials

At ChemTech, we help clients source trays based on their capsule sizes, production goals, and GMP needs. We don’t believe in one-size-fits-all. 

So, whether you’re a compounding pharmacy or a supplement innovator, we’ll help match the right tray to your workflow.

5 Best Practices When Using a Capsule Filling Tray

Even though the process in the gel capsule filling tray is manual, a little attention to detail goes a long way. 

Here are five best practices that’ll make your capsule filling smoother and more efficient:

1. Always clean your capsule filler trays before and after use. It helps avoid contamination and maintains compliance with cleanroom standards.
2. Presort capsule halves before loading. Keeping the caps and bodies separate saves a lot of fumbling mid-process.
3. Use a spreader or tamper tool to evenly distribute powder. This ensures consistent fill weight and reduces air pockets.
4. Store capsule fill trays in a dry, clean environment. Humidity can warp trays or cause capsule shells to become sticky.
5. Control moisture in your working space, especially if you’re using gelatin capsules. Too much moisture and they’ll start absorbing water from the air.

ChemTech’s Solutions for Gel Capsule Drying

At ChemTech, we don’t sell capsule filling trays; however, we act as a sourcing partner for pharmaceutical and supplement producers who need reliable material handling equipment that performs under real-world conditions. We supply post-filling solutions like gel capsule drying trays, which are a critical part of the workflow when moisture control is essential.

• We offer soft gel and vial loading trays in a variety of sizes and materials from the best manufacturers in the USA.
• All trays are commercial-grade, not entry-level kits.
• Built for use in GMP-compliant labs, pharmacies, and nutraceutical setups.

✅ For high-volume or precision drying, check out our Hurst Injection Molded Gel Cap Drying Trays

These stackable, injection-molded trays are trusted by major players in pharma and nutraceutical manufacturing, offering efficient drying without damaging the capsules.

Final Thoughts

Whether you’re working in a research lab or managing a nutraceutical brand, a pill capsule filling tray can make your production process far more controlled, cost-effective, and scalable. And when paired with other equipment like drying trays or tamper tools, the benefits compound even further.

At Chemtech, we make sure you’re not just getting a tray, but a complete, reliable and high-quality pharmaceutical-grade solution that keeps your operations compliant and running smoothly.

Looking for durable, precise capsule filler trays? Chemtech can help you find the right match for your production needs, whether you’re just getting started or scaling up your operations. Get in touch and let’s see what we can do for you!