Pulse-Bac Pro Series 311

The Pulse-Bac Pro Series 311 is a dust extractor for concrete work, and the reason contractors buy Pulse-Bac is the pulse cleaning. Conventional vacuums lose airflow steadily through the day as the filter loads, and the operator either accepts the loss or stops to shut down and clean. Pulse-Bac's system cleans the filter during operation, so the machine holds airflow across a shift instead of fading after the first hour.

That matters because airflow at the shroud is the only thing standing between a concrete grinder and a room full of respirable silica. Capture does not happen at the vacuum, it happens at the tool, and it only happens if the machine behind the hose is still moving air. A vacuum that has quietly dropped half its airflow is worse than useless because everyone assumes it is working.

Match the extractor to the grinder and the hose. A vacuum sized for hand grinder work will not keep up with a large walk-behind machine, and a hose that is too small or too long throws away the airflow you paid for. Tell us what grinder you are running and the shroud and hose sizes you use, and we will confirm the pairing. Filters, gaskets and hose accessories for Pulse-Bac equipment are stocked separately.

On OSHA silica, be clear-eyed. A dust extractor is the equipment component of a control plan, and the outcome depends on the whole system: shroud seal at the tool, hose size and condition, filter condition, how collected dust is emptied, and the work practices your crew actually follows. Twin Coating Supplies does not claim a specific OSHA Table 1 listing for this machine.

Freight: a dust extractor in this class ships LTL, not parcel. A liftgate or a forklift is needed at delivery, residential and limited-access deliveries cost more, and the carrier schedules an appointment. Call 817-676-6793 for a freight quote, lead time and configuration before ordering.