Sample Preparation

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Sample Preparation

9 items

Rapid Soil Processor

Processing soil for soil compaction tests has never been easier than when using Humboldt’s Rapid Soil Processor. It automatically processes semi-moist, moist and even samples close to optimum moisture content to minus #4 screen size more than five times faster than any other method available. Samples of up to 30 pounds of fat and tough clays at field moisture levels can be processed in less than 15 minutes. For those drying back samples or taking up to 24 hrs to prepare samples for five-point moisture/density relationship tests, the rapid soil processor can accomplish this preparation in about 5 hours. Other test preparations can also benefit from the rapid soil processor, reducing prep time to almost nothing. If you use field expedient methods, such as “rapid compaction” or “family of curves” testing, the rapid soil processor is a must. In addition, while processing a sample, rocks in the sample of up to 0.75" in size are automatically separated from the soil, preventing damage to the screen. The rapid soil processor features heavy-duty, all-metal construction, which provides years of dependable service under constant use. The offset rotating drum is motor driven and requires no preset adjustments. Automatic operation frees up technician’s time allowing them to do other tasks while processing soil samples. Easy-to-install, replacement screens are available, as are replacement parts. Overall dimensions: 32" x 36" x 53" (813 x 915 x 1346mm).

Soil Grinder

Soil grinders are laboratory tools that are effectively used to reduce agglomerations of caked soil to individual grains with repeatable results. The use of soil grinders saves time and money as compared with the use of mortar and pestle methods. The simple operation consists of loading the hopper, starting the grinder, and using the gate for manual feed control. Humboldt’s soil grinder prepares samples to a designated particle size with accurate results. The unit includes a No. 10 perforated stainless plate and grinds one-pint samples in just 15 seconds. This table-top unit prepares soil samples to designated particle size for accurate, repeatable test results. Grinds one-pint sample in 15 seconds. Stainless steel construction. The direct drive motor and grinding device is mounted on a sturdy tripod stand, with an in-line switch to control motor operation.

Disk Grinding Mill, Electric

Electric Disk Grinding Mill is used in testing labs around the world and complies with ASTM C409 for sample preparation of Hardgrove Grindability specimens. This grinding mill features a 1/3hp single-phase, geared motor, which is mounted to a rigid, cast-aluminum base with rubber feet for stability. The grinding mill head construction is made of sturdy, durable cast iron. The grinding mill head can be easily removed and disassembled for cleaning without the use of any special tools. The grinding plates are made of a hard iron alloy designed for clog resistance and long life. Plate-to-plate clearance is easily adjusted by hand in order to change the mesh size range desired. Output capacity is up to 40lbs (18kg) per hour with dry material and the material hopper provides 50in3 (820ml) approximately 2lb (0.9kg) of material. Grinding mill is sold with the dry grinding feeder and disk set— a wet grinding feeder a

Disk Grinding Mill, Hand-operated

Hand-operated Grinding Mill mounts to bench top up to 1.5" (38.1mm) thick with an integral c-clamp for fast grinding of samples. The mill is made of sturdy, durable, painted cast iron. Mill head can be easily disassembled for cleaning without the use of any special tools. The grinding plates are made of a hard iron alloy designed for clog resistance and long life. Unit is sold with dry grinding feeder and disk set, but wet grinding set up is available as an accessory. Output capacity is up to 40lbs (18kg) per hour with dry material and an energized cranker. The material hopper provides 50in3 (820ml) approximately 2lb (0.9kg) of material.

Laboratory Mixer, 5-Qt. (4.73L)

Laboratory Mixer has been designed to provide material testing labs with a step up in quality from the typical lab mixer. This mixer has been designed specifically for the demands of cement and soil mixing and not as a kitchen-prep machine. This new mixer, with its clear safety cover provides a design, which allows for material, water and other additives to be easily added to the mix via a port at the top of the mixer. The clear safety cover is attached to the mixer, independent of the bowl and can be removed for cleaning. The mixer features lightweight aluminum construction and comes with a stainless steel stirrer and mixing bowl.

Mortar Mixer, 5L (5.3qt)

This excellent, alternative to the Hobart mixer features two-speed, manual-control with a very robust design, expressly made for the efficient mixing of cement pastes and mortar. The mixer offers two speeds: 140 rpm for revolving with 62 rpm planetary action and 285 rpm revolving with15 planetary action. This mixer features a heavy-duty design, which provides excellent stability when placed on a counter top. Provides open mixing bowl for easy visual consistency control. Simple distance control between stirrer paddle and mixing bowl maintains standard distance between bowl and stirrer. Hoisting mechanism can also be used to lower the mixing bowl. Quick-clamping system allows mixing bowl to be attached to the mixer easily. Provided with standard stainless steel bowl and standard beater.

Soil Mortar

Heavy porcelain mortar, glazed outside surface and unglazed inside; for use with pestle to break up soil particle aggregates for testing. Mortar is 3.5" (90mm) ID x 2.25" (57mm).

Soil Pestle

Rubber-tipped 8" (203mm) long pestle, made for gently grinding soils without breaking individual particles.

Mixer, 5-Qt. (4.73L), 120V 60Hz

Mixer for mixing material samples. The H-3839 operates on the principle of planetary action, where the beater reaches every part of a batch, rotating on its axis in opposite directions as it moves around the bowl. This mixer thoroughly blends, mixes, and aerates all ingredients for a consistent, predictable finished batch. Selective agitator transmission has 3 speed settings: 139, 285, and 591 RPM. Direct gear drive and a heavy-duty motor ensure constant mixing speeds under load. A locking hand lever provides precise raising and lowering of the mixing bowl. The mixer includes a stainless steel bowl, a wire whip, a dough hook, and an aluminum flat beater. It is suggested that a stainless steel beater or a Humboldt extreme-duty whisk be purchased for materials mixing applications for improved beater life.

Sample Preparation equipment is used to properly prepare soil and material samples before testing. These tools help ensure consistency, accuracy, and reliability in laboratory analysis and are essential for geotechnical and civil engineering applications.