Minnich Manufacturing Showcases Dust Collection System at World of Concrete 2017
MANSFIELD, Ohio (January 17, 2017) — Minnich Manufacturing, the leading manufacturer of concrete dowel pin drills, concrete vibrators and vibrator monitoring systems, highlighted its dust collection system for dowel-pin drills at World of Concrete 2017 (Booth C5388) in Las Vegas.
The Minnich dust collection system meets the requirements for dowel pin drills found in Table 1 of the Occupational Safety and Health Administration (OSHA) final respirable crystalline silica standard when used with an appropriate filter. Filters supplied with the Minnich dust collection system comply with the OSHA filter efficiency requirement. Construction employers have until June 23, 2017 to comply with the final silica rule.
Featuring Venturi-style suction and manual or automatic purge control, the pneumatic dust collector removes dust from the air as the operator drills. The canister-style unit can be retrofitted to any Minnich on-grade, on-slab, machine-mounted or utility drill model. It can also be adapted to fit other dowel pin drill makes and models.
“The final silica rule is a complex challenge for contractors. We’re here to help,” said Rob Minnich, vice president of marketing at Minnich Manufacturing. “The Minnich dust collection solution can help simplify the compliance process.”
The dust collection system requires 40 scfm for hydraulically powered drills and 50 scfm for pneumatically powered units, and 60 to 110 psi. Each canister can accommodate up to two drills and offers a 60-square-meter filter area. The system comes with drill rod guide collection boots, a 5-gallon pail-type hopper and up to 20 feet of vacuum hose per drill.
Table 1 and Dowel Pin Drilling
Construction employers covered by the new OSHA silica standard essentially have two alternatives to satisfy the rule’s requirements:
- Measure their workers’ exposure to silica and independently determine which dust controls work best to reduce exposure to the new permissible exposure limit (PEL). Exposure measurements can be expensive and time-consuming to perform.
- Use a dust control approach outlined in “Table 1: Specified Exposure Control Methods When Working with Materials Containing Crystalline Silica.” Table 1 lists effective dust control methods and work practices that can be used to achieve the requirements of the new rule.
Table 1 states that, for tasks performed outdoors only, dowel pin drill operators can comply by using a shroud around the drill bit with a dust collection system. The dust collector must have a filter with 99 percent or greater efficiency and a filter-cleaning mechanism.
According to the Table 1 section on dowel-pin drilling, workers must also use a respirator with an assigned protection factor (APF) of at least 10. A HEPA-filtered vacuum must be used when cleaning holes.
There are several additional requirements construction employers must meet regardless of which exposure control path they take. These include implementing a written exposure control plan, offering medical exams and training workers on ways to limit exposure. For complete requirements, visit www.osha.gov/silica.
About Minnich Manufacturing
Since 1968, Minnich Manufacturing has operated with the mission of producing high-quality products that are safe and cost effective for concrete and utility contractors. Minnich Manufacturing is an industry leader in the production of dowel pin drills, concrete paving vibrators, vibrator monitoring systems, and custom-made special application drills. Based in Mansfield, Ohio, Minnich Manufacturing offers optimum service and technical support through a global network of distributors. To learn more about the extensive line of drills, vibrators and monitoring systems, visit www.minnich-mfg.com.