Drill Rig Modifications: Air Inlets
Reverse Circulation Well and Foundation Drilling

The Holte Air Inlet is made of a low carbon alloy steel and carburized to file hard prox 62 Rockwell. This gives the rotating seal surface a long lasting, smooth, hard surface. One ring nut on each end provides even pressure to the packing. A lantern ring in the center of each packing distributes lubricant  evenly.  The Holte Air Inlet will adapt to all drill rigs and drill pipe and is most commonly used to introduce air into a dual wall pipe chamber for reverse circulation foundation and well drilling.


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Reverse Circulation Air Inlets

© Copyright Holte Manufacturing - Veneta, Oregon. Drilling supplies and drilling equipment design, consultation and field applications.

Your #1 source for foundation and well drilling products, drilling supplies, and tools. Reverse Circulation / RC drilling equipment and drill pipe specialist. Hole Hammers, Casing Drivers, Extractor Hammers, Perforators, Casing Cutters, Top Head Drivers, Air Inlet Swivels, Mast modification, Grout Inlets and refurbished drill rigs. We also speicalize in Secant retaining wall construction and bridge construction. Please contact us at (541) 935-5054 for consultation, drilling supplies and or sales questions.

All products are Made in the USA!

We are also proud to make a wide variety of high-quality
Glue Mixing products, machines and tanks used all over the world.

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