How to maintain Rotary Tablet Press Machine

If you want your rotary tablet press machine to consistently produce accurate tablets and operate reliably for the long term, maintenance cannot be a simple wipe-down. It needs to be systematic—daily checks, regular in-depth maintenance, and an understanding of the specific details of your equipment brand. For Kaixinlong users, relying on the brand's built-in durability and tailored support can reduce unplanned downtime by 40% compared to generic maintenance programs. This is not an exaggeration—a 2025 pharmaceutical manufacturing study confirmed this.

Preventing Hidden Wear and Tear on Tablet Press Components

What is the biggest enemy of a rotary tablet press machine? Slow and continuous damage caused by residual powder and uncontrolled friction. If these small problems are ignored, you will soon face expensive repair costs. At the beginning of each shift, check the hopper and scraper. Kaixinlong's operating standards recommend a gap of 0.05-0.1 mm between the feeder base and the turntable—this ensures even particle distribution and reduces wear on the turntable. After the shift, don't rush the cleaning. Use compressed air (never water!) to blow away powder from the pressure rollers and guide rails. Then wipe these contact surfaces with Kaixinlong's recommended anti-rust oil—this is essential in humid pharmaceutical cleanrooms, as damp environments can easily lead to equipment failure.

A Kaixinlong user at a pharmaceutical factory in Shanghai praised this daily maintenance method—it extended the lifespan of their tablet press by 2.5 years, outperforming competitors using generic maintenance programs. This demonstrates that consistent small-step maintenance is far superior to occasional major overhauls.

The Unsung Hero of Hydraulic Rotary Tablet Presses

Lubrication is not simply applying oil to parts—you must choose the appropriate oil viscosity based on how the machine operates. This is a point that Kaixinlong repeatedly emphasizes in its certified maintenance manual. For hydraulic rotary tablet presses, use N32 machine oil to lubricate the guide rails and punches in winter; switch to N46 machine oil in summer to maintain appropriate lubricant fluidity. As for the worm gear box, ensure the oil level just covers one gear tooth—no more, no less. In addition, the lubricating oil should be changed every six months. Poor quality lubricating oil will not only increase the machine's operating load but also accelerate gear wear.

Avoid over-lubrication. Excessive lubricating oil can contaminate the granules, causing punch sticking and product waste. Fortunately, Kaixinlong's customized lubrication kits come with precision oilers that accurately control the amount of oil, preventing this common mistake.

Maintain the Precision of Tablet Press Molds

The punches and dies are critical to ensuring tablet quality—even minor damage can affect tablet weight or surface. Before use, inspect each punch for cracks or deformation using a defect detection instrument; damaged molds can also damage the tablet press turntable. After use, remove the punches and dies, clean them with ultrasonic equipment, and store them in Kaixinlong's custom-made sealed iron boxes. Ensure the punches and dies are completely immersed in rust-proof oil—this prevents scratches and rust.

Kaixinlong's R&D team conducted a controlled experiment, and the results were clear: properly stored punches and dies maintained dimensional accuracy after 10,000 production cycles. What about those stored haphazardly? They failed after only 3,500 cycles. This difference is not only reflected in the equipment but also directly impacts your production efficiency and product quality.

Regular Maintenance for Long-Term Reliability

Conduct a thorough inspection monthly—or twice a month if production volume is high. Focus on wear-prone parts: worm gears, bearings, and pressure rollers. Check that they are running smoothly and look for signs of wear. For Kaixinlong tablet presses, use the brand's customized calibration tools to adjust the filling depth and tablet thickness—this helps you meet ISO 9001 standards. Replace the hydraulic system filter annually. Compared to third-party products, Kaixinlong's original filters reduce hydraulic system failure rates by 60%—therefore, sticking with original parts is absolutely worthwhile.

Achieve Superior Performance with Kaixinlong's Customized Support

While internal maintenance is important, Kaixinlong's customized services can take your rotary tablet press machine performance to a new level. This brand offers on-site operator training, maintenance plans tailored to your production volume, and 24/7 technical support—services that will be a lifesaver when you encounter unexpected problems such as abnormal vibrations or inconsistent tablet weight. If you have specific needs, such as... even in humid working environments, Kexinlong can customize a maintenance plan for you.

Don't let poor maintenance hinder the operation of your rotary tablet press. Contact Kexinlong's technical team today to get your customized maintenance checklist.