The Micron Air Jet Sieve® is an updated, USA-made redesign of the time-proven Alpine Air-Jet Siever. Working components have changed little, but are now mounted in a newly-designed housing with electronic digital controls.","The air jet method is an effective single-sieve system for dry powders from No.4 to 5um. Air moves through a slowly-rotating slotted nozzle to gently fluidize the sample in a 200mm diameter sieve. Exit air flow carries undersize particles downward to a collection canister. Multiple particle sizes are determined by starting with the finest sieve. Retained sample is then transferred to the next larger sieve size. Air jet action is gentle, effective, and especially useful for fragile or low specific gravity materials. Test times vary, but are typically one to five minutes for a 510g sample, or up to five to ten minutes for fine micron sizes. Digital timer and vacuum controls assure reproducibility of results. Sieves are ordered separately by mesh sizes required. Sieves are constructed with stainless steel frame and mesh, and are supplied with sealing gaskets. The Cyclone Collector is an alternate means of collecting undersize sieve fractions efficiently. A Multi-Sieve Adapter Assembly that accommodates one to three special 83mm diameter sieves is optionally available. Inquire. Also inquire for an upgraded AJ-102 Air Jet Sieve with computer interface and operating software.","The Micron Air Jet Sieve® consists of the base unit with a Plexiglas lid, slotted brass air nozzle, electronic controls with a built-in electronic timer and vacuum displays. The cast aluminum Air Jet housing has an attractive baked enamel finish. The timer has memory for up to nine preset test times. The Siever is connected to a separate low-noise vacuum power system with 1-1\/2hp motor and epoxy-lined steel filter canister with 4gal (15L) recoverable capacity. The vacuum is monitored at the housing outlet and has a control valve for adjustment. Est. Ship Wt.: 110lb (50kg).

• Widest selection of sand equivalent shakers and components available. "," • SE-2B assures precise repeatability and safe automatic operation. "," • SE-6 is repeatable and economical for lighter testing schedules. "," • SE-5 is the most economical for occasional use. ","The Sand Equivalent Test indicates the relative portion of undesirable clay-like fines and dusts that occur in granular soils and fine aggregates passing the No.4 sieve. The Sand Equivalent Shaker is also used in the Durability Index Test which measures the relative resistance of an aggregate to producing such undesirable clay-like fines when subjected to degradation. In either application, the sample to be tested is placed in a clear plastic cylinder with sand equivalent solution, consisting of calcium chloride, formaldehyde, and glycerine. After shaking the cylinder with a Sand Equivalent Shaker, it is allowed to stand for a 20 minute sedimentation period. Readings are taken on the cylinder scale for the level of the top of the clay suspension, and for the sand level. The \"Sand Equivalent\" is the sand reading divided by the clay reading x 100."," SE-2B Motor Driven Shaker is recommended for labs performing sand equivalent tests on a regular basis. Positive DC drive assures precise speed and stroke and eliminates errors inherent in hand shaking or with less expensive belt-driven or AC motor driven machines. A timer selection switch gives options of precise fixed times of 45 seconds and 10 minutes as used in sand equivalent and durability index tests. The 8in (203mm) throw at 175cpm is smooth, quiet, and efficient. The 1\/8hp DC gear motor with sealed gear box and other mechanical parts are housed in a sturdy metal case. The hinged safety cover with 3-1\/2in (89mm) high front and top viewing windows must be closed to operate the shaker. Green \"start\" and red emergency \"stop\" buttons are provided. Test cylinder is held securely by base pin and spring-loaded holder on stoppered end. Overall Dimensions: 35x14x20in (889x356x508mm), WxDxH; allow 10in (254mm) additional height for opening of safety cover. Est. Ship Wt.: 200lb (91kg)."," SE-6 Hand Crank Shaker has 8in (203mm) throw. Geared manual crank gives 3cpm of clear plastic cylinder per revolution of crank. Operator cranks at one turn per second until the digital counter reaches 131 cycles. Cylinder mounts to fixed-travel guide rod by base pin and threaded clamp holder on stoppered end. Base has holes for mounting. Dimensions: 30x14x10in (762x356x254mm), LxWxH. Est. Ship Wt.: 68lb (31kg)."," SE-5 Hand Operated Spring Shaker is more operator-dependent than mechanical models, but conforms to ASTM, AASHTO and California 217 test methods. Unit has cylinder mounting bracket suspended by two steel straps. Operator manually oscillates cylinder via steel straps to a preset mark on the case at proper rate. Digital counter records stroke counts. Components are mounted in a vinyl-covered, plywood case with reinforced corners, removable front and a top handle. Dimensions: 24x6x25in (610x152x635mm), WxDxH. Est. Ship Wt.: 30lb (14kg)."," The SEA-100 Sand Equivalent Test Sets is packed in a latching, vinyl-covered wooden case with carrying handle. Economy SEA-99 Set includes the same items, without carrying case. Plastic measuring cylinders are 17in high, 1-1\/4in (31.8mm) inside dia., and are graduated from 015in (0381mm) by 0.1in graduations from bottom of cylinder. Measuring tin is approximately 2-1\/4in (57mm) dia. with capacity of 85ml. Weighted foot assembly weighs 1,000g.

W.S. Tyler™ Ro-Tap® Sieve Shakers have 278 oscillations and 150 taps per minute as specified in some ASTM and other sieving applications. Horizontal, circular action combined with vertical tapping assures accurate and consistent results.","These shakers are designed for heavy-duty use and bolt easily to a solid table or sturdy bench top. All models feature an adjustable-plate sieve support and built-in 99 minute x 0.1 second digital timer. Powerful 1\/4hp motors provide plenty of action for efficient separations. Sieves are ordered separately and a sieve cover is required."," SS-30 8in Ro-Tap® Sieve Shaker holds up to six full-height 8in (203mm) sieves with a full-height pan, or thirteen half-height sieves with a halfheight pan. Recommended particle size range is No.4 (4.75mm) to No.635 (20¼m). Dimensions: 28x21x25in (711x533x635mm), WxDxH."," SS-31 12in Ro-Tap® Sieve Shaker holds up to four 12in (305mm) full-height sieves and pan, six intermediate height and pan, or eight half-height sieves and pan. Recommended particle size range is 1\/2in (12.5mm) to No.500 (25¼m). Dimensions: 28x21x25in (711x533x635mm), WxDxH."," SS-33 8in Ro-Tap® II Sieve Shaker performs two 8in (203mm) sieve tests simultaneously with exactly the same action as the single-stack models. Recommended particle size range is from No.4 to No.635. Dimensions: 31x27x26in (787x686x660mm), WxDxH."," SSA-320A Sound Enclosure is designed for SS-30 or SS-31 W.S. Tyler™ Ro-Tap® Sieve Shakers. Hammer-tone finished steel cabinet is lined with 1in (25.4mm) thick acoustic foam. Two front doors and a top-opening panel allow easy access to shaker. A small access port is built-in to the rear of each unit."," SSA-321 Sound Enclosure has all the same features as the SS-320A, but is dimensioned to fit the larger SS-33 Ro-Tap® ll Sieve Shaker."," SSA-325 Test Stand for SS-30 and SS-31 Ro-Tap® models can be used with or without the SSA-320A Sound Enclosure. The sturdy, lightweight aluminum frame includes hardware and instructions for easy assembly and floor anchoring.