Founded in 1948 by Howard R. Houghton, Houghton Manufacturing Company started as a machining/welding shop. By the early 1950s, the company ventured into material testing equipment, achieving immediate success with a newly designed centrifuge for asphalt testing, now a standard in the industry.
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Our gradation pan is American made and is used to collect all of the material off of a sieve during cleaning.
The size of the pan (16″ x 17″ x 3″) ensures that all of your fines are accounted for and the angled sides and corners make pouring everything easier.
Vacuum pycnometer for a rice test setup. Our pycnometers are machined from high-grade aluminum and are slightly tapered to improve their strength.
The Large 4000 g Metal Vacuum Pycnometer for your rice test setup.
The Houghton Sieve Shaker is built for efficiency and cost, not for the amount of features that you can stuff inside. This no-frills piece of American made equipment can fit 8″ or 12″ test sieves, is just as quiet as its competition, and meets every sieve shaker specification out there.
The Liquid Limits Machine helps us see when soil changes from a runny liquid to a soft and squishy state by tapping it a certain number of times. It comes with a special brass cup that drops the soil exactly 1 centimeter onto a rubber base, and you can take the cup off to clean it when you’re done.
The explosion proof asphalt extractor is designed to separate liquid AC from the aggregate using a solvent.
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