Concrete Products

JUN 2019

Concrete Products covers the issues that attract producers of ready mixed and manufactured concrete focusing on equipment and material technology, market development and management topics.

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www.concreteproducts.com June 2019 • 47 INNOVATIONS EQUIPMENT & PRODUCTS Company's new Air Knocker, available in direct or indirect models, keeps sticky materials moving even if they are clinging to vessel walls. Pneumatic hammering technology loosens the material by Knocker piston impact, the pressure of which can be adjusted to match process goals and materials. Operators can install additional Knockers depend- ing on silo, hopper or pipe size and shape. Device features simple design, along with durability and ease of maintenance characteristics. — Solimar Pneumatics, 763/574-1820; www.solimarpneumatics.com Pneumatic line air knocker Company has extended its Elastocolor product line of coatings to include Primer AR, an alkaline-resistant primer, and Texture, a high- build, textured coating. These two water-based products offer high performance for a variety of cementitious substrates in above-grade, new or previously coated concrete surface conditions. Elastocolor Primer AR is highly flexible; protects against the dam- aging effects of high pH levels; offers excellent filling and adhesion on prepared substrates; and, is designed for use on stucco, concrete and masonry units. Elastocolor Texture is specially designed with a unique blend of aggregates to produce an attractive, uniform textured finish, making it ideal for reducing the appearance of surface imperfections and irregular substrates. — Mapei North America, Deerfield Beach, Fla., 800/426-2734; www.mapei.com Primer, textured coatings The Model BSD (belt speed detector) is a "traction action" motion control that indi- cates when a conveyor belt has slowed or quit moving altogether. The unit can be adjusted as an overspeed, underspeed, or zero speed control. The output of the Model BSD can be wired into a PLC or DCS, or to the optional RMS controller, which has a DP/DT relay to control up to two sep- arate circuits, one for machinery shutdown and one for an alarm. The Model BSD can shut down rotating equipment before damage is encountered. It provides protection for interlocked con- veyor belts, especially if one fails due to overloading or quits due to tearing. The standard construction is a mild steel/ carbon steel frame with safety yellow poly- ester powder coating. The device requires no drilling or tapping of tail pulley shaft; is shielded between top and bottom of con- veyor belt; and, can be placed anywhere on the conveyor belt. — Conveyor Compo- nents Co., Croswell, Mich., 800/233-3233; www.conveyorcomponents.com Conveyor belt speed sensor

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