Identify and isolate pulp contaminants - stickies, shives, dirt, and more - in 10 to 15 minutes. The Technidyne Pulmac MasterScreen™ mechanically separates fibers from contaminants and deposits them onto filter paper so you can see exactly what’s in your pulp.
The Technidyne Pulmac MasterScreen™ gives you a fast, definitive answer to the question every mill asks: what contaminants are in my pulp? It mechanically separates fibers from stickies, dirt, shives, vessel cell elements, plastics, and hot melts at low consistency.Â
Contaminants are automatically deposited onto filter paper, giving you a clear visual record of what’s in your furnish — no guesswork, no interpretation required.Â
When contaminants show up in your finished product, the MasterScreen™ helps you trace them back to the source. Sample at any point in your process — digesters, cleaners, refiners, grinders, repulpers, screening systems — and the MasterScreen™ isolates what’s getting through.Â
The result: fewer customer complaints, less downgraded product, and a process you can troubleshoot with evidence instead of guesswork.Â
We’ve been supporting the pulp and paper industry for decades, developing equipment that helps identify, analyze, and reduce contaminants in pulp.Â
Across our portfolio, the MasterScreen™ stands out as a low-consistency screening device that mechanically separates fibers from contaminants such as stickies, shives, dirt, and vessel cell elements. For customers looking to assess fiber quality beyond contamination, the Z-Span Tester is a natural next step, allowing precise measurement of fiber strength and bonding properties.Â
Be sure to explore other fiber and pulp testing solutions from across the Industrial Physics portfolio.Â
Over the years, we’ve gathered insight into effective fiber screening and contamination analysis.
We share much of this knowledge in our knowledgebase. For example, if you’re new to pulp evaluation, check out Pulp Evaluation: Application Information. Or, for a deep dive into standard pulp testing methods, see the TAPPI T 275 article.Â
These resources will help you maximize the MasterScreen™’s performance, troubleshoot issues, and understand how contaminant data can impact overall pulp quality.Â
While you’re exploring fiber screening solutions, why not take a look at the Pulmac Z-Span Tester? It measures fiber strength and bonding properties through automated zero span and short span testing, giving you the insight you need to ensure your pulp performs reliably on the paper machine.
If you have any other questions do not hesitate to reach out, our team of experts will be happy to help.
SKU: PULMAC-MASTERSCREEN
Applications: Freeness Testing of Pulp Mixtures, Paper Testing, Paperboard Testing, Sample Preparation, Sample Testing
Materials: Corrugated Paper, Paper, Paperboard
Maximum sample size: 100 g (oven dried equivalent)Â
Test time:  Approximately 10–15 minutesÂ
Screen plate sizes: Standard .004” and .006”Â
Custom screen plate range: .003” – .014”Â
Screening chamber pressure: Adjustable up to 15 psi (XLQ configuration)Â
Feed tank design: Large capacity with air mixing for uniform consistencyÂ
Contaminant collection: AutoFilter cartridge with removable screenÂ
Feed tank features: Adjustable level control with enclosed lid to localize water sprayÂ
Programs available: SA, MS, XLQÂ
Optional configuration: XLQ valve between screening chamber and feed tankÂ
Test standards: TAPPI T 274, TAPPI T 277, PAPTAC C.12P, ISO 15360-2, ASTM D6148, INGEDE Method 4Â
Crated weight (American): 650Â lbsÂ
Crated dimensions (American): 78 in (H) Ă— 45 in (W) Ă— 37 in (D)Â
Net weight (American): 500Â lbsÂ
Net dimensions (American): 73 in (H) Ă— 37 in (W) Ă— 31 in (D)Â
Crated weight (International): Â 300 kgÂ
Crated dimensions (International): 2000 mm (H) Ă— 1140 mm (W) Ă— 940 mm (D)Â
Net weight (International): Â 225 kgÂ
Net dimensions (International): 1900 mm (H) Ă— 940 mm (W) Ă— 790 mm (D)Â
Service Requirements:
American:
Water supply: 10 gal per minute of potable filtered waterÂ
Water connection: 3/4” – 11 GHT male fittingÂ
Drain connection: 1 1/2” NPT male fittingÂ
Electrical service: 120 V, 60 Hz, 20 AmpÂ
Compressed air: 10 CFM at 65 psiÂ
Air supply fitting: 1/4” slip fittin
International:
Water supply: 40 L per minute of potable filtered waterÂ
Water connection: 3/4” – 11 GHT male fittingÂ
Drain connection: 1 1/2” NPT male fittingÂ
Electrical service: 240 V, 50 HzÂ
Compressed air: 60 L/min at 5.5 barÂ
Air supply fitting:  8 mm slip fittingÂ
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