Porta-Screen® Shaker, 5-Tray Capacity (115v/60Hz)

The Porta-Screen is a portable aggregate screening machine designed for construction-materials laboratories that need effective mechanical gradation testing without the size and installation requirements of a full-size stationary Testing Screen. Its counterbalanced mechanism allows smooth operation without floor mounting, while five screen trays plus a collection pan can be used in a single test.

Key Features

• Supports aggregate gradation procedures using screen trays conforming to applicable ASTM E11 and ISO 565 opening requirements
• Particle-size range from 2" through No. 200 / 50.8mm–75µm
• Five screen-tray positions plus one collection-pan position
• Maximum sample capacity of 60lb / 27.3kg
• Counterbalanced vertical vibration provides smooth operation
• Does not require permanent floor mounting
• Programmable timer up to 99 minutes
• LED timer display improves test repeatability
• Compact and portable compared with a full-size Testing Screen
• Optional wheels, dust cover, sample pan, tray rack, and sound enclosure available

Included Items

Porta-Screen shaker with integrated drive, clamping system, and programmable timer. Screen trays and collection pan are purchased separately.

Typical Applications

Aggregate gradation, asphalt aggregate testing, concrete aggregate testing, soil particle-size analysis, quarry QC, DOT testing, field laboratories, commercial materials laboratories, and construction-materials testing where portability is beneficial.

Lab Manager's Tip

The PS-3 is particularly useful for laboratories that don't want to permanently anchor a full-size Testing Screen. It handles up to 60lb of material but still remains portable. If your routine gradations require more than five sieve fractions in one run, consider the seven-tray PS-4 instead.

• User Manual