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US Amoxicillin Capsule Manufacturer Praises Rich Packing's NJP-3800D Capsule Filling Machine–Solves Filling Fine Powder Points

Nov 28, 2025

On November 26th, Mary, a senior sales manager at Rich Packing, warmly received a delegation from a U.S.-based pharmaceutical company specializing in amoxicillin capsule production. The client’s sole mission: to source a reliable capsule filling machine that could resolve the persistent issues plaguing their current NJP-2500C model – erratic single-capsule dosage, severe powder dust emission, and frequent machine jams – all of which had disrupted their production efficiency and compromised product quality.

 

pharmaceutical capsule filling machine

 

Carrying their own amoxicillin powder material, the client traveled to Rich Packing’s Guangzhou factory (2 kilometers from the Canton Fair Complex) after stumbling upon the brand’s technical posts on Facebook, hoping to “take a chance” on finding a viable solution. Thanks to the professional support of Engineer Yang and the outstanding performance of the NJP-3800D high-speed pharmaceutical capsule filling machine, the on-site trial was a resounding success, with the client expressing strong intent to purchase.

 

Persistent Pain Points: Old Encapsulation Machine Hinders Production

The U.S. client revealed that their existing NJP-2500C automatic capsule filler had become a major bottleneck in amoxicillin production:

 

  1. Unstable Dosage: The fully automatic capsule machine failed to maintain consistent filling volume, resulting in dosage deviations that violated strict pharmaceutical quality standards, leading to costly product rejections.
  2.  
  3. Severe Dust Pollution: Capsule filling that takes more than an hour will cause a large amount of dust to spread, posing a threat to workers' health and requiring frequent shutdowns for cleaning, which reduces overall production efficiency by 30%.
  4.  
  5. Frequent Jams: Material often adheres to the filling capsule rod, causing frequent machine blockages. This requires constant cleaning and maintenance, severely impacting production progress and wasting valuable production time.

 

“We’ve struggled with these issues for over six months, testing various adjustments and even consulting third-party technicians, but nothing worked,” the client shared. “We saw Rich Packing’s posts on Facebook about solving fine powder filling challenges, and since we were already in China, we decided to visit their factory and give it a try.”

 

automatic capsule filler

 

On-Site Filling Capsules Testing

Upon the client’s arrival, Engineer Yang immediately initiated a 20-minute material characteristic test on the amoxicillin powder. Using specialized equipment, he analyzed key properties: low fluidity (angle of repose >35°), high hygroscopicity (absorbing 8% moisture in ambient air), and strong electrostatic aggregation tendency – the root causes of the client’s problems. Based on these findings, Engineer Yang fine-tuned the NJP-3800D powder capsule filling machine’s parameters, including adjusting the feeding speed, optimizing the filling pressure, and calibrating the anti-sticking settings.

 

capsule filling machine

 

When the client’s powder was loaded into the NJP-3800D capsule filling machine automatic for the trial run, the results exceeded expectations: the machine operated smoothly without any jams, the single-capsule dosage deviation was controlled within ±0.5% (well below the industry’s ±2% standard), and dust emission was nearly eliminated. The client watched closely, taking notes and capturing video of the stable operation, with visible satisfaction on their faces.

 

Technical Explanation: The Root Cause of the Fine Powder Problems

Engineer Yang then walked the client through the technical principles behind the NJP-3800D’s success, breaking down the three core issues with fine amoxicillin powder and the pharma capsules filling machine’s targeted solutions:

 

  1. Low Fluidity & Bridging: The powder’s fine particles create more contact points, leading to electrostatic aggregation and “bridging” in the feeding system. The NJP-3800D’s upgraded feeding system uses pneumatic vibration to ensure precise, stable material supply, while the filling station is equipped with specially designed paddles and bottom guide impellers to break up bridging in real time.
  2.  
  3. Hygroscopicity & Sticking: Fine powder easily absorbs moisture and adheres to filling punches. The NJP-3800D’s filling punches feature electronic stepless polishing and optional Teflon coating, creating a smooth surface that prevents powder adhesion.
  4.  
  5. Dust Emission: Open filling structures exacerbate dust problems. The NJP-3800D is fitted with a sealed cover at the filling station, and the accompanying user manual provides a detailed dust control plan. A free toolbox with sieves is included, allowing users to adjust settings easily per the manual – no specialized technical skills required.

 

njp capsule filling machine

 

Client’s High Praise & Intent to Purchase

Impressed by the NJP-3800D high speed capsule filling machine’s performance and Engineer Yang’s professional explanation, the client praised Rich Packing’s technical expertise: “We’ve visited multiple manufacturers, but Rich Packing is the first to thoroughly analyze our material and provide an on-site solution that works. The NJP-3800D addresses every pain point we have – stable dosage, no dust, and no jams. Barring any unforeseen circumstances, we are committed to purchasing the NJP-3800D auto capsule filling machine and look forward to a long-term partnership.”

 

As a leading pharmaceutical machinery manufacturer with 32+ years of experience, Rich Packing’s NJP capsule filling machines are renowned for their adaptability to complex materials and reliable performance. The successful on-site trial not only showcases the brand’s technical strength but also reinforces its reputation in the global pharmaceutical equipment market. For more information about the NJP-3800D and other customized solutions, visit Rich Packing’s official website or contact the international sales team.

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