Capsule Filling Machines With Siemens PLC And Custom Molds

Understanding the Demand for Siemens PLC-Enabled Capsule Filling Solutions

Pharmaceutical manufacturers, medium-scale producers, and research institutes searching for professional capsule filling machine manufacturers often face a specific set of technical and operational concerns: how to reduce manual labor intensity, minimize material waste, prevent dust contamination, and avoid frequent equipment failure in production. Guangdong Rich Packing Machinery Co., Ltd., operating under the brand name Guangdong Rich Packing, was established to close this technological gap. As an export-oriented, high-growth industrial machinery manufacturer, the company develops and manufactures innovative pharmaceutical packaging machinery specializing in automatic and semi-automatic capsule filling solutions.

Corporate Background and Strategic Positioning

Guangdong Rich Packing’s strategic positioning centers on delivering high-precision, GMP-compliant capsule filling solutions that enhance material utilization, ensure product quality, and reduce labor costs. A key milestone in the company’s development history is the independent development of China’s first hard capsule liquid filling and sealing production line, the NJY-330C. This achievement reflects the company’s focus on addressing gaps that traditional manual filling methods could not solve, including powder leakage, inconsistent dosing, and difficulty handling oily liquids or suspensions.

Core Technical Capabilities and Global Component Integration

For buyers specifically searching for Siemens PLC-based equipment, Guangdong Rich Packing’s technology platform is built around a mechatronic and pneumatic integrated control system that combines Siemens PLC and Schneider HMI platforms. This integration is part of a broader network of technology partnerships that includes:

• Siemens (Germany) for PLC and HMI
• Schneider Electric (France) for electrical components
• Omron (Japan) for relays
• Yaskawa (Japan) for servo motors
• Zeiss (Germany) for optical dividing heads
• Becker (Germany) for vacuum pumps
• SEW (Germany) for drive motors
• NSK/IKO (Japan) for bearings
• SAMICK (Korea) for linear bearings

These components support proprietary R&D outcomes, including multiple national invention patents covering patented turntable designs and dual-sealing systems. Across the product range, dosing accuracy is maintained at ±1% to ±3% depending on the model, production speed reaches up to 40,000 capsules per hour, and operating noise stays below 75 dB(A). Modular designs also allow for 15-minute mold changes, directly supporting operational flexibility for manufacturers who need to switch between capsule sizes or formulations quickly.

Product Lineup Overview

Guangdong Rich Packing’s current matrix includes three distinct machines, each addressing a different production scenario.

CGNT-209 Semi-auto Capsule Filling Machine

Positioned as a high-speed semi-automatic filler for medium-scale production and research, the CGNT-209 targets the pain points of high manual labor requirements, powder leakage, and inconsistent dosing found in traditional filling methods. Its Dual-Row Capsule Feeding System uses two trays for high-speed efficiency, while Oxidized Capsule Trays provide enhanced hardness for higher feeding success rates. A Horizontal Capsule Locking mechanism uses pneumatic activation for secure locking, and Independent Workstations allow feeding, filling, and locking to operate independently. The machine is controlled through a Siemens PLC with Touchscreen for simplified mechatronic operation, and Precision Filling Control with variable frequency speed adjustment keeps dosing error within ±3%. This machine is delivered as hardware with onsite setup and is adapted for pharmaceutical manufacturers, hospitals, and laboratories.

NJP-1500D Fully Automatic Capsule Filling Machine

The NJP-1500D is described as an innovative fully automatic filler featuring seven technological advancements, built to resolve frequent mechanical failures in older models, dust leakage, and long downtime for cleaning. Its Patented Turntable Design uses SIL silicone seals to prevent dust entry, while a CNC-Machined Internal Groove Cam is produced through single-operation machining for quiet, gapless stability. The National Patent Filling Mechanism applies three-dimensional adjustment for even force on measuring plates, and a Powder Recovery Device achieves a 100% recovery rate to eliminate waste. An Exclusive Double Seal combining NBR and SIL silicone materials prevents bearing jams, Electronic Polishing enhances material flow and prevents sticking or clogging, and Automatic Waste Rejection removes unqualified capsules automatically. Stability is reinforced by a 100DS indexing box for reliable continuous operation, while precision is supported by a German Zeiss optical dividing head keeping dosing error at ≤3%. Maintenance benefits from the 15-minute mold change feature paired with an intelligent lubrication system. This model is adapted for traditional Chinese medicine, Western medicine, and health supplement production.

NJY-330C Automatic Capsule Liquid Filling and Sealing Machine Production Line

As China’s first independent hard capsule liquid filling and sealing solution, the NJY-330C addresses the difficulty of filling oily liquids or suspensions, leakage during transport, and complex cleaning of sticky materials. Its Ceramic Pump Technology handles sticky substances and prevents dripping, while Capsule Cap Detection performs real-time inspection and skips filling if capsules are not opened. Customizable Sealing allows tailored sealing liquids for different capsule materials, and Matrix-Style Discharge prevents jams and blockages during output. A One-Touch PLC Cleaning function simplifies discharge of residual oil and maintenance, while the Dual-Sealing System—a patented national-level technology—is compatible with gelatin and vegetable capsules. An optional Pellet Filling feature allows for combined liquid and pellet dosing. Accuracy is delivered through a Japanese Yaskawa servo motor, keeping liquid injection error below 2%, and an integrated vertical air-drying system provides 63% higher drying efficiency. This full production line is adapted for potent medicines, hygroscopic materials, and sustained-release products.

Custom Mold Sets and After-Sales Support

For buyers specifically seeking manufacturers that offer custom mold sets, Guangdong Rich Packing’s service scope includes pre-shipment quality inspection, custom mold sets, and technical configuration. Platform compatibility extends to standard capsule sizes 000# to 5#, supporting gelatin, HPMC, and vegetable capsules. Aviation interfaces are built in for safe and easy operation, and modular hardware supports third-party component integration. After-sales support includes standardized mold sets and modular designs that simplify customer-side maintenance. Deployment is handled through on-premises hardware installation, with pricing based on custom enterprise quotes reflecting configuration choices such as optional pellet devices or Teflon coating.

Market Validation and Quantified Results

In pharmaceutical dosing scenarios, implementation of the NJP-1500D has achieved a 99.9% empty capsule feeding rate and a 99.8% full capsule success rate, with dosing accuracy maintained within ±3%. In liquid encapsulation scenarios, the NJY-330C deployment has provided ±1% accuracy and zero leakage for poorly soluble drugs. The company is also noted as the only one in its region adopting the 100DS configuration for specific filler models, and its quality framework aligns with GMP Standards and JB20025-2004 Standards.

With ample inventory, Guangdong Rich Packing is able to ship equipment within 14 days, serving large pharmaceutical manufacturers, medium-scale producers, and research institutes across the pharmaceutical, health supplement, healthcare, and research sectors.