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Tarmac Stationary Baghouse specifications

RowsSQ. FT. ClothACFM 5.0 to 1
186,62933,134
217,73138,656
248,83644,179
279,94049,701
3011,04555,223
3312,14960,746
3613,25466,268
3914,35871,790
4215,46377,313
4516,56782,835
4817,67188,357
NEED BAGS OR PARTS?

11’11” wide / 15′ bags

Tarmac Stationary Baghouse specifications

RowsSQ. FT. ClothACFM 5.0 to 1
186,62933,134
217,73138,656
248,83644,179
279,94049,701
3011,04555,223
3312,14960,746
3613,25466,268
3914,35871,790
4215,46377,313
4516,56782,835
4817,67188,357
NEED BAGS OR PARTS?

11’11” wide / 15′ bags

Consider The Temperatures As Well As The Makeup Of The Dust Particles

Your System


A Baghouse Dust Collector (often called a filter receiver) is used in a wide variety of industries to filter an even larger variety of material dust and particulates from air streams.

In the industries using Tarmac dryers, we typically deal with three types of bags in the dust control system:

  • Polyester
  • Aramid
  • P84

Even though there are numerous other types of bag materials, these three are usually suited well for the drying of different types of sand, aggregates, soils, steel slags and other bulk materials. There are a couple things to consider when selecting a bag type.

Temperature Requirements


Temperature is frequently the main determining factor. Looking at the temperatures and materials below, consider what will be the normal operating temperature and the maximum (short term exposure) temperature the dusty air / gas will be entering the baghouse.

The most common bag type for rotary drying application is Aramid. Aramid is synonymous with trade names Conex and Nomex. Polyester bags are less expensive than Aramid, however they have a much lower operating temperature. P84 bags on the other hand are much more expensive than Aramid, but have a higher operating temperature and do better with the other deciding factor.

Polyester up to 220°F

Aramid up to 400°F

P84 up to 500°F

Ceramic Candles up to 900°F

Your Product


We need to consider how the properties of the dust being filtered will affect the bag material.

  • Aramid is fair to good with most products but does not work well with oxidizing agents
  • Polyester performs fair to good with most materials
  • P84 bags have good to excellent reaction with materials, but only fair with alkalis.

Therefore, when choosing which type of bag material will be best for your needs, you need to consider the temperatures the bags will be operating in as well as the makeup of the dust particles being filtered.

Air to Cloth Ratios


To correctly size the baghouse we need to understand air (gas) to cloth ratio. ACFM (Actual Cubic Feet per Minute) to square feet of cloth in the baghouse describes this:

  • If we are drying a very fine powder, like sand or fly ash, we would recommend a 3.5:1 air to cloth ratio.
  • If there is less dust or particulate, as in aggregate drying, we would recommend a 5:1 air to cloth ratio.

Typical air to cloth ratios for a baghouse used on a rotary drying system are from 3.5:1 to 6:1. The lower the ratio, the more cloth in the baghouse.

Read more about sizing your baghouse

Tarmac Baghouse Dust Collector Features


  • 3/16″ steel plate sidewalls and hopper construction stand up to corrosion
  • Up to 20″ negative pressure drop capable
  • Center section is part of the hopper for fast setup
  • Clean air duct built into the upper house of the baghouse
  • Enclosed pulse valves
  • Primary knockout box built into inlet of baghouse
  • Tarmac builds stationary, skid mounted, or portable baghouses 
  • Internal auger discharge
  • Pyramidal hopper discharge (no auger)
Ti251 Baghouse1 E1609885645417

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