Airtac GAF Filter GAF300N15AJ
The AirTAC Airtac GAF Filter GAF300N15AJ is a genuine compressed-air filter. Its diversion structure spins the air to separate liquid water and trap solid particles down to 40 µm, protecting downstream valves and tools. It has 1/2" ports and a 60 cc drain bowl. It is a filter only — it does not regulate or set pressure.
- TypeAir filter
- Port size1/2"
- Filtering grade40 µm
- Pressure range0.15 - 0.9 MPa
- Bowl materialNylon
- Drainautomatic
- Drain bowl60 cc
- Weight360 g
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GAF Filter GAF300N15AJ
The GAF300N15AJ is a filter-only unit that spins incoming air to throw liquid water and solid particles into its 60 cc nylon bowl, while the 40 um HDPE core traps fine grain. With a 1/2in port and 360 g mass, this GAF300 body sits between the smaller GAF200 and larger GAF400 classes.
This model ships with an automatic drain that purges condensate without manual attention, and no mounting bracket for panel installations. It operates from 0.15-0.9 MPa (20-130 psi) and -5 to 70 C, but does not regulate pressure or remove oil vapor.
Airtac GAF Filter GAF300N15AJ Technical Specifications
| Model | Airtac GAF Filter GAF300N15AJ |
|---|---|
| Series | GAF300 air filter |
| Port size | 1/2" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Bowl material | Nylon |
| Drain type | Automatic drain |
| Bracket | Not included (J) |
| Fluid | Air |
|---|---|
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Capacity of drain bowl | 60 cc |
| Element | HDPE filter core |
| Weight | 360 g |
Specifications follow the official AirTAC GAF catalogue (pages 225-226). Air must not freeze in the unit. This is a filter only — it separates water and solid particles but does not set or hold a downstream pressure. To regulate pressure as well, use the matching GAFR300 filter-regulator.
Model Code: Airtac GAF Filter GAF300N15AJ
| GAF300 | GA300 series air filter — sets the port range, drain-bowl capacity and weight. |
|---|---|
| N | Bowl material: Nylon. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 15 | Port size 1/2". This body offers 08 = 1/4", 10 = 3/8", 15 = 1/2". |
| A | Drain: Automatic drain. |
| J | No bracket (J) — supplied without the mounting bracket. |
| (blank) | Filtering grade 40 µm. |
| (blank) | PT port thread. |
A GAF has no regulator and no pressure gauge — there is no type, gauge or reflux code. Need to regulate pressure too? The matching GAFR300-15 is the same filter with a built-in regulator.
Size Class & Flow Envelope
- GAF2001/8"-1/4" · 3000 L/min
- GAF3001/4"-1/2" · 6000 L/min
- GAF4003/8"-1/2" · 8000 L/min
- GAF5003/4" · 9000 L/min
- GAF6003/4"-1" · 12000 L/min
Figures are the end of the flow curve plotted in the AirTAC catalogue — a sizing envelope for comparing bodies, not a rated flow. Read the catalogue curve for a real duty point. A filter this size drops less pressure at flow than the same-body GAFR filter-regulator, so match it to your peak demand.
| This model | GAF300 · 1/2" · curve to 6000 L/min |
|---|---|
| One size down | GAF200 |
| One size up | GAF400 (curve to 8000 L/min) |
| Add regulation | GAFR300-15 (filter + regulator) |
Where the Airtac GAF Filter GAF300N15AJ Is Used
CNC coolant lines
Protect precision valves on a machining center from water slugs and swarf that would otherwise score spools and shorten service life.
Assembly station manifolds
Feed a multi-fixture workbench where several pneumatic cylinders share one 1/2in supply, keeping the whole station dry.
Packaging line air prep
Guard stretch-wrap machines and case erectors from dirty plant air, with the auto drain handling condensate overnight.
Is the Airtac GAF Filter GAF300N15AJ the Right Filter?
Choose the GAF300 body for 1/4in to 1/2in lines where a 60 cc bowl balances capacity against a 360 g footprint. The nylon bowl suits environments where you prefer non-glass visibility, while the automatic drain handles wet or unattended lines. This J code omits the bracket for panel mounting, and the 40 um element covers general shop air. For pressure control, pair it with a GAR regulator or step up to the GAFR300-15 filter-regulator. The 6000 L/min flow envelope is exactly 2x the GAF200's 3000 L/min curve, so this body doubles your sizing headroom.
Quick checklist
- ✓ Body size for your peak flow (1/2" here)
- ✓ Element 40 µm (general) or 5 µm (fine)
- ✓ Bowl material: PC (blank), Metal (C), Nylon (N)
- ✓ Drain: semi-auto + manual, or automatic
- ✓ Bracket kept or removed (J)
- ✓ Need pressure control too? Use GAFR300
Installation & Maintenance Notes
- check Install with the airflow arrow: IN to OUT, bowl accessible.
- check Place the filter FIRST in the air-prep train, ahead of any regulator or lubricator.
- check Keep pressure at or below the 1.5 MPa (215 psi) proof limit.
- check Drain condensate before the 60 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 360 g unit on its bracket, not on the tubing.
This is a filter only — it removes water and solid particles but adds no pressure control and no lubrication. Add a GAR regulator, a GAL lubricator, or step up to the GAFR300-15 filter-regulator as your air-prep needs grow.
Airtac GAF Filter GAF300N15AJ FAQ
It is a 40 um filter with a 1/2in PT port, 60 cc nylon bowl, and 360 g weight. Working pressure is 0.15-0.9 MPa (20-130 psi), proof pressure is 1.5 MPa (215 psi), and temperature range is -5 to 70 C. The flow curve plots to 6000 L/min.
The J code omits the mounting bracket for panel or existing frame installations. The A drain automatically expels condensate when the bowl fills, so it suits unattended lines or wet climates where manual draining would be forgotten.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC Air-Preparation Units
Request a Quote for Airtac GAF Filter GAF300N15AJ
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.