Air Intake Pre-Cleaners

Strata™ Cap

The scavenged Strata Cap pre-cleaner removes up to 96% of incoming contaminant – the highest efficiency rating of any Donaldson self-contained pre-cleaner. It is designed for the most demanding heavy dust environments in the construction and mining industries.

Features 

• Separates up to 96% of incoming contamination per ISO 5011/SAE J726
• Significantly extends air filter life
• Reduces air filter servicing and replacement
• Lowers operating cost per hour
• Separates more than 99% of particles 20 microns and above
• Light weight and low profile for maximum operator visibility
• Robust design:
  • No moving parts
  • Built in rain cap
  • No bowl to clean or empty
  • UV resistant plastic construction
• Simple installation:
  • Install outside the engine compartment – no underhood space required
  • No wires or power requirements
  • Requires standard scavenge components

Applications

• Accommodates a range of airflows from 9.9 to 36.8 m³/min / 350 to 1,300 cfm
• Primarily used in heavy dust environments
• Great for off-road vehicles and equipment from crawler tractors to farm tractors to skid steer loaders
• Recommended mounting: outside of engine compartment on top of the air cleaner inlet stack

Large Vane

The large vane pre-cleaner is specifically designed to handle large fibrous contaminant and heavy dust in agricultural and forestry applications.

The large single-vane design easily separates chaff, cotton linters, wood fibers, and other large contaminant, in addition to removing extremely heavy dust.

Features

• Built-in large vane spins air to separate up to 94% of incoming fibrous debris and up to 90% of incoming heavy dust from the air intake system, per ISO 5011/SAE J726
• Works as part of a scavenged flow system to continuously expel pre-cleaned contaminants through the scavenge source
• Durable, non-corroding reinforced plastic 
• High efficiency with low restriction 
• No maintenance. Self-cleaning. No moving parts.

Applications

• Harvesters and other agricultural equipment, refuse, logging and forestry
• For engine airflows from 300–900 cfm
• Recommended mounting: external, using bracket

TopSpin™

Donaldson TopSpin pre-cleaner will extend primary air filter life, boost system efficiency, and extend engine life.

Features

• Extends filter life in heavy dust conditions
• Extend primary air filter life, boost system efficiency, and extend engine life
• Separates up to 85% of incoming contaminant per ISO 5011/SAE J726.
• Greatly extends air filter life
• Reduces air filter usage
• Lowers cost per operating hour
• Automatically ejects mixed debris
• Separates more than 99% of 20 micron and above particles
• Self-cleaning/self-scavenging:
  • No maintenance to clean bowl
  • No exhaust ejector required
• Easy installation:
  • Quick installation
  • One clamp to tighten
  • No wires or power requirements
• Dual mounted bearings:
  • More robust design
  • Extends bearing life
• Lighter weight:
  • Lighter than competitive pre-cleaners
  • Lighter than Donaldson full-view pre-cleaner

Applications

• Engine airflows of 2.3 to 42.5 m³/min / 80 to 1500 cfm 
• Primarily used in medium to heavy dust environments
• Great for off-road vehicles and equipment from crawler tractors to farm tractors to skid steer loaders
• Recommended mounting: on top of the air cleaner inlet stack

Full-View

The Full-View pre-cleaner is traditional, cost effective, and easy to use.

Features

• Full-View pre-cleaner helps extend filter life
• Centrifugal force in bowl separates up to 75% of incoming dust before it enters the engine air intake system
• Low maintenance
• Durable, lightweight, noncorrosive construction
• Full-view plastic bowl lets operator easily see when service is needed
• One-bolt cover retention for easy service. When dirt reaches the level of the arrow, remove top nut and plastic body, then empty – no tools required
• Mounting clamp included

Applications

• Agricultural and construction equipment
• Recommended mounting: on top of the engine intake stack

DonaSpin™

The Donaspin Pre-Cleaner extends the life your air filter by removing up to 90% of the dirt and contaminant before it reaches the filter and ejecting it automatically via the exhaust system. Donaspin is designed especially for equipment operating in very heavy dust/debris environments.

Features

• Built-in louvers spin air to separate up to 90% of incoming dirt and debris from the air intake system
• Works as part of a scavenged flow system to continuously expel pre-cleaned contaminants through the exhaust flow
• Durable, corrosion-resistant steel construction
• High efficiency with low restriction
• No maintenance, self-cleaning, no moving parts
• Mounting clamp is included

Applications

• Vehicles: agricultural equipment, construction and waste haul vehicles
• For engine airflows of 8.6 to 22.7 m³/min / 305 to 800 cfm
• Recommended mounting: on top of the air inlet stack

In-Line Separators

Donaldson in-line separators provide two-stage cleaning for unexpectedly heavy dust/moisture conditions.

When your truck is being used in heavier-than-anticipated dust or moisture conditions, you may not have to replace the entire air cleaner. The problem may be solved by adding a Donaldson in-line separator. This enables an over-highway vehicle, which usually sees only light dust, to be easily and economically adapted to off-road medium to heavy dust conditions.

Features

• Economical way to convert air intake system from light dust to medium to heavy dust condition
• 80% water removal efficiency
• 70% dust removal efficiency

Applications

• Vertical model: On/off road, mounted on inlet tubing or cowl mounted directly to air cleaner – Compatible with engine airflows of 14.2 to 42.5 m³/min / 500 to 1500 cfm
• Horizontal model: On/off road, typically mounted underhood – compatible with engine airflows of 2.8 to 40 m³/min / 100 to 1400 cfm