Oblan air cleaners
KL Series Air Cleaner Housings
Three-stage air cleaners: static vanes spin out the heaviest dirt, which drops out through a self-emptying evacuator valve, then primary and safety elements clean the rest. One connection to the engine.
- 11 sizesKL 4 to KL 43
- 1.5 – 43 m³/minairflow
- 30 – 450 hpengine size
- 99.9%of what’s left held by the elements
The range
KL Series Sizes
| Model | Airflow, m³/min (CFM) | Engine, hp (kW) | Weight, kg |
|---|---|---|---|
| KL 4 | 1.5 – 4.5 (53 – 159) | 30 – 80 (22 – 60) | 3.80 |
| KL 6 | 4.5 – 6.0 (159 – 212) | 80 – 90 (60 – 67) | 4.90 |
| KL 8 | 6.0 – 8.0 (212 – 282) | 90 – 120 (67 – 90) | 5.30 |
| KL 12 | 8.0 – 12.0 (282 – 423) | 120 – 160 (90 – 120) | 7.50 |
| KL 15 | 12.0 – 15.0 (423 – 529) | 160 – 180 (120 – 134) | 9.95 |
| KL 18 | 15.0 – 18.0 (529 – 635) | 180 – 210 (134 – 157) | 12.50 |
| KL 20 | 18.0 – 20.0 (635 – 706) | 210 – 250 (157 – 187) | 14.10 |
| KL 21 | 20.0 – 21.0 (706 – 741) | 240 – 280 (179 – 209) | 15.40 |
| KL 28 | 21.0 – 28.0 (741 – 988) | 280 – 320 (209 – 239) | 18.15 |
| KL 35 | 28.0 – 35.0 (988 – 1,235) | 320 – 380 (239 – 283) | 21.00 |
| KL 43 | 35.0 – 43.0 (1,235 – 1,517) | 380 – 450 (283 – 335) | 35.70 |
How it works
How the KL Series Works
Static Vanes and Two Elements
Air comes in through the intake (8) and the static vanes (3), plastic or metal, spin it. The heaviest dirt is thrown out and leaves through the evacuator valve (9) on its own. The primary element (4) and safety element (5) hold back 99.9% of the rest, and clean air goes to the engine through the outlet (1).
Use it on its own, or with an Oblan pre-cleaner on the inlet.
Why the KL series
Simple and Robust
No Moving Parts
The static-vane first stage has nothing to wear.
Empties Itself
Separated dust leaves through the evacuator valve automatically.
Universal Mounting
Steel housing, powder coated, with universal mounting bands.
Pairs with a Pre-Cleaner
The tube-style inlet suits an Oblan pre-cleaner for the dustiest jobs.
How to choose
Choosing a Model
Size It by Airflow
For turbocharged or turbo-aftercooled engines, choose by the engine’s maximum airflow (m³/min or CFM). The horsepower range is only a guide for naturally aspirated engines.
Match the Outlet
Each model has standard outlet sizes; reducing sleeves adapt it to smaller tubes, from 7" down to 2.5" in ¼" or ½" steps.
Keep It Clear
Pre-cleaners need almost no maintenance – just check now and then that nothing is blocking the intake or the discharge ports.
Ask Us
Send us the engine make, model and power and we’ll pick the model and fittings.
Literature & related
More Information
- KL series data sheet
Sizes, dimensions and mounting · PDF, 854 KB - Sizing chart
Choosing a pre-cleaner by engine · PDF, 92 KB
Not Sure Which One You Need?
Tell us about the job – the machine, the conditions and what it has to do – and we’ll help you choose the right Oblan product.