W.S. Tyler Ro-Tap Sieve Shakers

Ro-Tap Sieve Shakers is a sieving machine that is widely accepted in standardized particle sizing test methods. The Ro-Tap generates 278 oscillations and 150 taps per minute, as specified in some ASTM and other sieving applications. These shakers have a horizontal, circular motion with a vertical tapping action to ensure accurate and consistent particle analysis testing results.

These rugged test sieve shakers are built for heavy-duty use and can be bolted to a solid table or sturdy benchtops for stable operation. All models feature a powerful 1/4hp motor for performing consistent particle analysis testing, an adjustable plate sieve support, and a built-in 99-minute x 0.1-second digital timer.

SS-30 8in Ro-Tap® Sieve Shaker holds up to six full-height 8in/200mm diameter test sieves with full-height pan or thirteen half-height sieves with a half-height pan, ISO 200mm sieves can also be used. Recommended for the separation of particle sizes ranging from No. 4–No. 635 (4.75mm–20µm).

SS-31 12in Ro-Tap® Sieve Shaker holds up to four full-height 12in/300mm diameter test sieves and pan, six intermediate-height sieves and pan, or eight half-height sieves and pan. 12in sieves have more than twice the effective sieving area as 8in sieves. Recommended for separations of particle sizes ranging from 1/2in–No. 500 (12.5mm–25µm).

SS-33 8in Duo Ro-Tap® ll Sieve Shaker performs tests on two separate 8in/200mm diameter test sieve stacks simultaneously with precisely the same action as Ro-Tap® single-stack models. Recommended for separations of particle sizes ranging from No. 4–No. 635 (4.75mm–20µm).

Features:

• Widely accepted in standardized test methods
• Fast-acting adjustable plate sieve support
• Built-in 99-minute x 0.1-second digital timer for precise control

Included Items:

• 8in or 12in W.S. Tyler® Ro-Tap® Sieve Shaker

Accessories:

• ASTM or ISO Test Sieves are available in a wide selection of frame diameters, heights, materials, and opening sizes
• Test Stand is used to support SS-31 or SS-33 models by themselves or with Sound Enclosure
• Sound Enclosures is a steel cabinet lined with acoustic foam that greatly reduces operating noise
• Clean-N-Stor accessories streamline fraction collection, sieve cleaning, and weighing operations

Related blogs:

• Characteristics of Aggregates: Shape, Size & Specific Gravity
• Sieve Analysis of Coarse Aggregate: From the Field to the Lab
• Simple Steps to Preserve & Extend Service Life of Costly Equipment
• Coarse Aggregate Gradation: Test Sieves or Screen Trays?