A pharmaceutical manufacturer in Malaysia was producing syrup products on multiple production lines under local GMP requirements. The customer found Pullner Filtration through online research and was looking for a more economical and stable filtration solution to replace their existing disposable filter cartridges.

The customer’s syrup filtration process operated at below 30℃, using several filter housings across different production lines.

Previously, they used disposable PP filter cartridges. According to their internal SOP, each opened filter cartridge could only be used for 30 days, a maximum of 9 batches, or up to 12 hours after cleaning completion.

This replacement frequency caused several issues:

• High annual filter cartridge consumption
• Increased material and labor costs
• Frequent production interruptions for cartridge replacement
• Potential quality concerns caused by fiber shedding from PP filter media

The customer wanted to reduce production costs by switching to reusable stainless steel filter cartridges, while ensuring that the new solution would not affect syrup quality or violate their SOP requirements.

As the customer mentioned:

“Replacing the filter every 9 batches increases our production cost, so we are planning to shift to reusable SS filter cartridges without impacting the quality of the product.”

After reviewing the customer’s operating conditions, housing dimensions, cleaning requirements, and filtration target, Pullner recommended food-grade 316L stainless steel filter cartridges as a direct replacement for the original PP filter cartridges.

The stainless steel filter cartridges were designed to fit the customer’s existing filter housings, so no modification to the production line, piping, or equipment was required.

The solution offered the following advantages:

• Reusable and washable structure, helping extend service life
• 316L stainless steel material, suitable for pharmaceutical and food-grade liquid filtration
• No fiber shedding, reducing potential contamination risk
• Stable filtration performance under below 30℃ operating conditions
• Compatible with the customer’s existing cleaning procedures and SOP requirements
• Easy installation and replacement with existing housings

After switching to Pullner stainless steel filter cartridges, the customer achieved stable operation across multiple syrup production lines.

The service life of each filter cartridge was extended from 9 batches to more than 60 batches per use cycle. Annual filter cartridge consumption was reduced by more than 70%, helping the customer significantly lower material costs and replacement labor.

The customer also reported fewer production interruptions, more stable filtration performance, and consistent syrup quality with no negative impact on product properties.

Main results included:

• Service life extended from 9 batches to over 60 batches per use cycle
• Annual filter cartridge consumption reduced by more than 70%
• Lower replacement frequency and labor cost
• Reduced unplanned downtime
• No fiber shedding risk compared with disposable PP cartridges
• Stable syrup quality and production consistency

By adopting Pullner reusable 316L stainless steel filter cartridges, the Malaysian pharmaceutical manufacturer successfully reduced filtration costs, improved production stability, and maintained consistent syrup quality.

This case shows that Pullner stainless steel filter cartridges can be an effective and economical alternative to disposable PP filter cartridges in pharmaceutical syrup production, especially where customers require reusable filtration, lower replacement frequency, and stable GMP-compliant operation.