
The AirTAC AirTAC GL300-08 Lubricator (GL30008) is a genuine G-series air lubricator. It meters an oil mist into the compressed-air line so cylinders, valves and air tools downstream stay lubricated, with PT1/4" ports and a pc oil bowl. A lubricator does not filter or regulate — it goes last in the line, after the filter and the regulator.
The AirTAC GL30008 is a size 300 air lubricator: its only job is to add a fine oil mist to compressed air so downstream cylinders, valves and air tools receive lubrication. It has no filtration or pressure regulation function. This configuration carries a PT1/4 port in the standard PT thread and ships with a mounting bracket, and the PC bowl suits a working pressure up to 1.0 MPa (145 psi) in a -5 to 70 C, non-freezing environment.
This is a genuine AirTAC part from the G series, which spans sizes 200, 300, 400 and 600 so you can step port and body size up or down as your line requires. Flow figures are published as curves rather than a single rating, so send us your application details and we will confirm the sizing and full datasheet on request.
| Model | AirTAC GL300-08 Lubricator (GL30008) |
|---|---|
| Series | GL300 air lubricator |
| Port size | PT1/4" (PT thread) |
| Oil bowl material | PC |
| Bracket | Mounting bracket included |
| Fluid | Compressed air |
|---|---|
| Inlet pressure | 0.05 - 1.0 MPa (7 - 145 psi) |
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Function | Oil-mist lubrication only |
Specifications follow the official AirTAC G-series air-preparation data. A lubricator has no drain, no regulating mechanism, no gauge and no filter element, so none of those figures apply. Oil grade, bowl capacity, flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| GL300 | G-series air lubricator, 300 body — sets the port range. |
|---|---|
| 08 | Port size PT1/4". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| (blank) | Mounting bracket included. A bracket ships by default; J orders it without. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
The lubricator has the shortest code of the six G-series subfamilies — size, port, bracket, thread. There is no drain, pressure-type, gauge or filtering-grade position. Example: GL300-10JG is a 300 body, PT3/8", no bracket, G (BSPP) thread.
A larger body carries a larger port and passes more air. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GL600 uses an aluminium-alloy oil bowl; the 200, 300 and 400 bodies use PC.
| This model | GL300 · PT1/4" |
|---|---|
| One size down | GL200 |
| One size up | GL400 |
| Line order | Filter first, then regulator, lubricator last |
On a carton-sealing or case-packing line, the double-acting cylinders that fold flaps and press boxes need a continuous trace of oil in the supply air. The GL30008 sits directly upstream of the machine's valve manifold to keep those cylinders running smoothly shift after shift.
Impact wrenches, nutrunners and air ratchets at an assembly station rely on misted oil to protect their internal vanes and bearings. Placed at the bench drop, this lubricator feeds the tool circuit whenever the trigger is pulled.
A light-duty conveyor section driven by a rotary vane air motor needs lubricated air to avoid premature wear. The GL30008 in the supply line ahead of the motor's flow control keeps a steady oil mist reaching the motor during continuous runs.
Start with the port: this unit is a 1/4 inch (PT1/4) size 300 lubricator. If your air consumption sits beyond what a 1/4 inch port comfortably serves, step up to a size 400 or 600 GL rather than choking flow through a small body. Thread is PT as the standard; G (BSPP) and NPT are catalogue options you can order by specifying the trailing letter. A mounting bracket is included as standard - if your manifold or panel does not need one, ask for the J variant of the same model.
Flow is published as curves, not a single rated figure, so before ordering let us check the GL30008 against your actual air consumption and we will confirm the datasheet on request.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The oil mist travels downstream, so if any branch of the line must stay oil-free, take that branch off before the lubricator. We will confirm the recommended oil grade from the factory datasheet on request.
AirTAC publishes lubricator flow as performance curves rather than one rated number, so we do not quote a single flow figure here. Tell us your operating pressure and air consumption and we will confirm the correct curve and sizing from the datasheet on request before you order.
Yes - the plain GL30008 includes a mounting bracket as standard. If you are manifold or panel mounting and do not need one, order the GL30008J variant. For thread, PT is the standard on this model; G (BSPP) and NPT are catalogue options specified with a trailing letter on the order.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, availability and lead time — usually within 7-8 hours.