Donaldson Engine Air Filter Catalogue

STG Donaclone ™ Air Cleaner

Versatile STG Provides Airflow to 50 m³/min. Choose Peripheral or Tubular Inlet, Horizontal or Vertical Mount

Main Filter Housing

Applications • Allows 11 to 50 m³/min. airflow throughput per air cleaner • Horizontal or vertical installation • Off-road, high dust conditions Air Cleaner Features • Very reliable! Only one critical filter seal! • Airflow throughput can be doubled by using two air cleaners • Two body styles (peripheral inlet and tubular inlet) to accommodate location and ducting • Optional inlet shroud available for peripheral style • When the air cleaner is mounted directly on the engine and there is clearance around it for airflow, choose the peripheral inlet style (see photo on right) • When the air cleaner is mounted above the cab or somewhere far from the engine to get above the dust cloud, choose the tubular inlet style, which will accept ducting into the inlet • Built-in Donaclone pre-cleaning tubes separate up to 95% of incoming dust to dust cup before it reaches the filter, resulting in more thorough cleaning and fewer filter changes! • Choose the dust cup best suited to your maintenance practices: (1) the quick-release style for easy, manual emptying, or (2) a dust cup with a Donaldson Vacuator Valve that expels the dust automatically • All models include a fitting for a filter service indicator Filter Features • Replacement main filter choices: Standard life filters (for scheduled maintenance) and Donaldson Endurance extended service high efficiency filters • Safety filter on all models

Access Cover for Filter Service

Mounting Bracket

Choose between two STG body styles (tubular or peripheral), depending on the mounting location of the air cleaner and its ducting. The peripheral inlet style is shown here.

Outlet to Engine

Perforated Air Inlet

Pre-Cleaning Section contains a cluster of Donaclone tubes

Dust Cup

How the Two-Stage STG Donaclone Works

Air is drawn in through the perforations in the lower part of the unit and forced down through a bank of Donaclone tubes. The Donaclone tubes spin the air so that centrifugal force causes the heavier dust particles to separate from the airstream. While these particles fall into the dust cup at the bottom, the partially cleaned air is directed upward, into the primary filter in the upper portion of the unit. ­ The specially-developed pleated media in the primary filter stops up to 99.9% of the remaining dust, allowing clean air to pass to the engine.

Optional Inlet Shroud

112 n Engine Air Cleaners, Accessories & Service Parts

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