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Liquid-Filled Capsule Technology

Automatic Liquid Capsule Filling and Sealing Machine (NJP-260L)

Unlock the Power of Liquid-Filled Capsules. Engineer Your Next-Gen Pharmaceutical, Nutraceutical, or CBD Product with Our cGMP-Compliant, Leak-Proof Encapsulation Technology.

Servo-Driven Precision
±3% Filling Accuracy
Leak-Proof Sealing
Gelatin Band Technology
Multi-Formulation
Oils, Pastes & Suspensions
Full Compliance
cGMP & 21 CFR Part 11 Ready

Proven for High-Value Applications:

Pharmaceuticals CBD Oils Omega-3
Market Opportunity

The Future is Liquid: Why Leading Brands are Switching to Liquid-Filled Capsules

Discover the three core advantages that are making liquid-filled hard capsules the preferred delivery system for high-value supplements and pharmaceuticals.

Enhanced Bioavailability

Liquid and semi-solid formulations can improve the absorption and efficacy of active ingredients like CBD, fish oil, and fat-soluble vitamins, delivering faster, more predictable results for consumers.

Formulation Flexibility

Perfectly encapsulate oils, pastes, and suspensions that are impossible to formulate as powders. Ideal for overcoming challenges with low-melt-point substances and complex active ingredients.

Superior Product Appeal

Offer a premium product with better taste-masking and improved shelf stability. The crystal-clear, leak-proof finish creates a high-end look that commands consumer trust and a higher price point.

Close-up of premium, crystal-clear liquid-filled capsules showing their high quality.

However, realizing these benefits requires specialized equipment. The HIJ NJP-260L is engineered to overcome the unique challenges of liquid encapsulation—from precise, gentle filling to a perfect, leak-proof seal.

Start Your Liquid Capsule Project
Our Engineering Process

Our 3-Step Process for Perfect, Leak-Proof Liquid Capsules

From precision injection to hermetic sealing, every stage is meticulously engineered to ensure the integrity and quality of your final product.

Heated and stirred tank for liquid capsule filling
01

Precision Liquid Injection

Our servo-driven pump, connected to a heated and stirred tank, injects a precise dose (±3% accuracy) of your liquid formulation into the capsule body. It perfectly handles everything from low-viscosity oils to thick pastes.

Photoelectric detection system for capsule inspection
02

Intelligent Capsule Closing & Rejection

Filled capsules are securely closed. Our photoelectric detection system then inspects each capsule, automatically rejecting any that are unclosed or flawed before they can reach the critical sealing stage.

Secure band sealing station for leak-proof capsules
03

Secure Band Sealing

This is the most critical step. A gelatin band is applied to the cap-body interface and dried, creating a robust, tamper-evident, and hermetic seal.

This is how we guarantee a leak-proof result. It's the final lock on quality.

Complete Liquid Filling Solution

Not Just a Machine, But a Complete Oil Capsule Filling Solution

Every component of the NJP-260L is engineered to solve the unique challenges of liquid encapsulation—from maintaining formulation consistency to ensuring absolute leak-proof sealing.

Heated and agitated liquid filling tank with temperature control
Temp Controlled

Heated & Agitated Filling Tank

Maintains your formulation at the optimal temperature and consistency, ensuring uniform filling from the first capsule to the last. Perfect for semi-solids and suspensions that require precise thermal management.

Temperature range: Ambient to 80°C
Continuous agitation prevents sedimentation of suspensions
Jacketed design for heat-sensitive ingredients
High-precision servo pump system on liquid capsule filling machine workbench
±3% Accuracy

High-Precision Servo Pump System

Provides unparalleled dosing accuracy and repeatability. Easily adjust fill volume via the touchscreen, minimizing product waste and ensuring dose consistency across every batch. Works flawlessly with low-viscosity oils to thick pastes.

Filling precision: ≤±3% for all liquid types
Adjustable fill volume: 50mg to 1000mg
Servo-driven for zero pulsation filling
PLC touchscreen control panel for liquid capsule filling machine
21 CFR Part 11

Intuitive PLC & Touchscreen Control

Simplifies operation and parameter setting. Store recipes for different formulations, manage production data, and meet 21 CFR Part 11 requirements with built-in user management and audit trails. Reduce training time and eliminate operator errors.

10.4-inch color touchscreen with multi-language support
Recipe management: Store unlimited formulations
Data export to USB or network for batch records
SS316L stainless steel construction of cGMP liquid capsule filling machine
SS316L

Robust cGMP Construction

All contact parts are made of SS316L stainless steel, with a tool-free design for easy cleaning and validation. Built to exceed cGMP standards for pharmaceutical and nutraceutical production. No compromises on material quality or hygiene.

Product contact surfaces: 100% SS316L
Tool-free disassembly in under 15 minutes
Fully enclosed design for Class 100,000 cleanroom

Ready to Process Your Liquid Formulation?

Send us your formulation details (viscosity, fill volume, production target), and our engineers will design a customized solution with a detailed technical proposal—at no cost to you.

Get Free Formulation Analysis & Quote
Express FAT Available
24/7 Engineering Support
Full cGMP Documentation
Complete Technical Data

NJP-260L Technical Specifications

The NJP-260L is our flagship Automatic Liquid Capsule Filling Machine, meticulously engineered for R&D laboratories, pilot-scale production, and medium-volume manufacturing. Every parameter is optimized for precision, compliance, and reliability.

15,600
Capsules/Hour
Max Output
±3%
Filling Precision
Guaranteed
00#-5#
Capsule Size
Range
Servo PLC
Control System
Industry 4.0
SS316L
Contact Materials
cGMP Grade

Detailed Technical Parameters

Performance Parameters
Maximum Output 260 capsules/min (15,600 caps/hour)
Filling Precision ≤±3% (Liquid fill ≥300mg)
Capsule Size Range 00#, 0#, 1#, 2#, 3#, 4#, 5# + Safety Capsules A-E
Capsule Utilization Rate ≥99.5% (Minimal waste)
Noise Level ≤75 dBA (Quiet operation for cleanroom environments)
Machine Specifications
Overall Dimensions 1020mm × 860mm × 1970mm (L × W × H)
Machine Weight 900 kg (Robust construction)
Power Consumption 5.75 kW
Power Supply 3-Phase, AC 380V, 50Hz (customizable)
Control System & Materials
Control System Servo-Driven PLC with Frequency Stepless Governor
Contact Materials SS316L stainless steel (All capsule & liquid contact parts)
Non-Contact Parts SS304 stainless steel (Frame and structure)
Environmental Requirements
Working Temperature 21°C ± 3°C (Critical for liquid stability)
Relative Humidity 40% - 55% (Optimal for capsule integrity)
Room Size Requirement ≥2.6m (Manual feeding) | ≥2.8m (Vacuum feeding)
Exhaust Capacity 300 m³/hour (For powder dust control)
Utility Requirements
Compressed Air 0.06 m³/min @ 0.3 MPa
Vacuum Requirement -0.02 to -0.06 MPa
Water Supply 250 L/hour (Water cycle pump or external source)
Inlet Pipe Diameter 20 mm
Outlet Pipe Diameter 27 mm

Ideal Formulations for the NJP-260L

CBD & Cannabis Oils
Fish Oils (Omega-3/6/9)
Vitamin E & D3 Oils
Herbal Pastes & Extracts

Note: The NJP-260L's servo-driven pump and heated tank system handle viscosities ranging from low-viscosity oils (like CBD) to thick pastes (like herbal extracts), making it uniquely versatile for challenging liquid formulations.

Need Customization or Have Questions?

Our engineering team can customize the NJP-260L to match your exact formulation requirements. From non-standard capsule sizes to specific voltage requirements, we adapt to your needs. Get in touch for a detailed technical consultation.

Discuss Your Technical Requirements
High-Profit Applications

Unlock High-Margin Markets with Liquid Encapsulation

Liquid-filled capsules command premium pricing and open doors to formulations that powders simply cannot deliver. Here's where our NJP-260L can drive your next revenue breakthrough.

Nutraceuticals

Fish Oil • Omega-3 • Vitamin D/K • CoQ10

Launch premium, high-absorption supplements that command 40-60% higher retail prices than powder alternatives.

Premium Segment

CBD & Cannabis

CBD Oil • THC Distillate • Full-Spectrum Extract

Tap into the booming cannabis market with precisely dosed, tamper-proof capsules that meet regulatory standards.

Fastest Growing

Pharmaceuticals

Low-Melt API • Liquid Suspensions • Modified Release

Solve complex formulation challenges and improve bioavailability for drugs that can't be powdered.

Highest Compliance

Cosmetics

Facial Serum • Hair Oil • Vitamin E • Hyaluronic Acid

Create innovative, single-dose beauty capsules that preserve active ingredients and enhance brand appeal.

Luxury Positioning

Ready to Enter These High-Value Markets?

Our pharmaceutical engineers will work with you to determine which application offers the best ROI for your business, and design a custom solution that gets you to market faster.

Get a Custom ROI Analysis
Your Expert Partner

We Understand Liquids. We Understand Your Challenges.

Filling a liquid capsule is not just about buying a machine. It's about mastering viscosity, temperature control, and formulation stability. With HIJ, you gain a partner who has solved these challenges for 20 years.

Forester Xiang, Founder of HIJ - 20 Years of Liquid Encapsulation Expertise
Forester Xiang
Founder & Chief Engineer

Our founder, Forester Xiang, has spent 20 years helping clients with complex formulations. He knows that filling a liquid is not just about the machine; it's about understanding viscosity, temperature, and stability. When you partner with HIJ, you get access to this deep expertise.

Forester Xiang

Founder & Formulation Specialist

RISK-FREE OFFER

Free Liquid Formulation Test – Zero Risk, Total Confidence

Unsure if your formulation will work? Send us a sample of your liquid. We will conduct a free filling and sealing test and provide you with:

A detailed video report of your liquid being filled and sealed

Finished capsule samples for your quality inspection

Expert recommendations on parameters and process optimization

This is our commitment to guaranteeing your success before you invest.

Request Your Free Liquid Test

Proven Success in Liquid Encapsulation

20+

Years of Expertise

100+

Formulations Tested

50+

Countries Served

98%

Client Satisfaction

Expert Answers

Your Questions on Liquid Capsule Filling and Sealing, Answered

We've answered the most critical technical questions from our clients. Don't see your question? Contact our team for personalized guidance.

What is the viscosity range the machine can handle?

The HIJ NJP-260L is designed to handle a wide viscosity spectrum, from low-viscosity oils to thick pastes and suspensions. Our servo-driven dosing pump and heated filling tank system ensure precise and consistent filling across different formulation types.

Low Viscosity: 1-100 cP (e.g., MCT oil, vitamin E)

Medium Viscosity: 100-1,000 cP (e.g., CBD oil, fish oil)

High Viscosity: 1,000-5,000 cP (e.g., herbal pastes)

Temperature Control: Heated tank up to 80°C

Key Feature: Our filling tank includes a built-in heating and stirring system, which maintains your formulation at the optimal temperature and prevents sedimentation during production. This is critical for suspensions and high-viscosity liquids.

Test Your Formulation for Free

How does the sealing process work and how strong is the seal?

Sealing is the most critical step in liquid capsule production. The HIJ NJP-260L uses Gelatin Band Sealing Technology, which is the industry-standard method for creating a leak-proof, tamper-evident seal.

How It Works:

  • After the capsule body is filled with liquid, the cap is precisely placed onto the body.
  • A thin band of warm gelatin solution (same material as the capsule shell) is applied to the cap-body junction.
  • The gelatin band is then dried using a controlled airflow system, forming a permanent molecular bond with the capsule shell.
  • This creates a hermetic, tamper-evident seal that prevents leakage and oxidation.

Seal Strength: Our sealed capsules pass rigorous quality tests, including vacuum leak testing, tumble testing, and dissolution testing, ensuring zero leakage during storage, transportation, and shelf life.

Request Seal Test Video

Can I use the same machine for liquids and powders?

Short Answer: No, the NJP-260L is a dedicated liquid capsule filling and sealing machine. It cannot be used for powder filling.

Why? Liquid and powder capsules require fundamentally different technologies:

  • Liquid Machines use servo pumps, heated tanks, and gelatin band sealing systems.
  • Powder Machines use dosing discs, auger fillers, and do not require sealing (the cap is simply locked onto the body).

Investment Consideration: While they are separate machines, many of our clients operate both. The ROI for liquid capsules is typically higher due to:

  • Higher product value (CBD oils, Omega-3, fat-soluble vitamins)
  • Better bioavailability and consumer appeal
  • Ability to formulate products that cannot be made into powders

If you need both capabilities, we can design a dual-line solution for your facility.

Discuss Your Production Needs

What is the cleaning and changeover time?

We understand that downtime is lost revenue. That's why the NJP-260L is designed with a tool-free disassembly system and a streamlined cleaning protocol.

Quick Rinse: 15-20 minutes (for color/flavor change)

Deep Clean: 45-60 minutes (for API or allergen change)

No Tools Required: Hand-tightened clamps only

CIP-Ready: Optional Clean-in-Place system available

Key Design Features:

  • All product-contact parts are made of SS316L stainless steel with electropolished surfaces (Ra ≤ 0.4 μm).
  • The filling tank and pump assembly can be detached in under 5 minutes without tools.
  • No hidden corners or dead spots—every surface is accessible and cleanable.
  • We provide detailed cleaning SOPs and validation protocols for cGMP compliance.

Optional Upgrade: For clients with frequent product changes, we offer a portable filling tank system—simply swap out pre-filled tanks for near-instant changeover.

Download Cleaning Validation Guide

Do you have experience with filling CBD oil?

Absolutely. CBD oil encapsulation is one of our specialty applications. We've worked with clients in North America, Europe, and Asia to develop robust processes for both full-spectrum and isolate-based CBD formulations.

Why CBD Oil is Challenging:

  • Viscosity Variations: CBD oils can range from thin (in MCT carrier) to thick (in coconut oil or with added terpenes).
  • Temperature Sensitivity: Cannabinoids can degrade at high temperatures, requiring precise thermal control.
  • Oxidation Risks: CBD oxidizes when exposed to air, making a hermetic seal critical.
  • Dosing Accuracy: With high-value ingredients, even small dosing variations can significantly impact cost and efficacy.

How We Solve These Challenges:

  • Our heated filling tank maintains your oil at the optimal temperature (typically 40-50°C) without degrading cannabinoids.
  • The servo pump delivers ±3% dosing accuracy, ensuring consistent CBD content in every capsule.
  • Our gelatin band sealing creates an oxygen barrier, preserving product potency throughout its shelf life.
  • We provide inert gas purging options (nitrogen or argon) for ultra-sensitive formulations.

Compliance Support: We understand the evolving regulatory landscape for CBD. Our machines are designed to meet FDA 21 CFR Part 111 (dietary supplement cGMP) and EU Novel Food standards. We provide all necessary documentation for regulatory submissions.

Request CBD Formulation Consultation

Still Have Questions? Let's Talk.

Every formulation is unique. Our team is ready to discuss your specific requirements and design a solution that guarantees your success.

Schedule a Free Consultation

Let's Design Your Production Line

Share your requirements and I'll personally craft a solution that maximizes your efficiency and profitability.