Airtac PGJ Plug Pin Reducing Straight Connector PGJ8-6
The AirTAC Airtac PGJ Plug Pin Reducing Straight Connector PGJ8-6 is a genuine plug-in reducer for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypePlug-in reducer
- SeriesPGJ
- Working pressure0 - 1.0 MPa (0 - 10 kgf/cm2)
- Proof pressure1.5 MPa
- Temperature-20 to +70 °C
- 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 PGJ Plug Pin Reducing Straight Connector PGJ8-6
The PGJ8-6 is an AirTAC PGJ plug-in reducer, a tube-to-tube union in the resin one-touch family that joins a Dia 8 mm supply line to a Dia 6 mm branch line in a single straight body. Because both ends are tube sockets, there is no threaded port at all - no thread sealant, no wrench, no risk of a port seal backing out under vibration. Push the tube in and the internal chuck grips it; press the release ring and it slides free.
This is the standard resin spec profile, not the metal BP line: working pressure 0-1.0 MPa, negative pressure down to -750 mmHg, proof pressure 1.5 MPa, and a temperature range of -20 to +70 C. It ships in grey as standard, and ordering the D suffix changes the body to black. The gripping hardware inside - the POM chuck, stainless spring gasket and NBR O-ring - is identical on both diameters, so the 6 mm side seals just as firmly as the 8 mm side.
Airtac PGJ Plug Pin Reducing Straight Connector PGJ8-6 Technical Specifications
| Model | Airtac PGJ Plug Pin Reducing Straight Connector PGJ8-6 |
|---|---|
| Type | Plug-in reducer |
| Series | PGJ |
| Connection | Push-in one-touch |
| Working pressure | 0 - 1.0 MPa (0 - 10 kgf/cm2) |
|---|---|
| Negative pressure | -750 mmHg (10 Torr) |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Applicable tubing | Soft nylon or polyurethane tube |
| Thread standard | PT (Rc tapered) unless the code says otherwise |
POM release button and chuck, aluminium-alloy guide, stainless spring gasket, NBR O-ring; body brass or PBT depending on the part. AirTAC publishes flow as a characteristic curve rather than a single figure, so no L/min value is listed.
Model Code: Airtac PGJ Plug Pin Reducing Straight Connector PGJ8-6
| PGJ | Plug-in reducer. |
|---|---|
| 4 / 6 / 8 / 10 / 12 | Tube outside diameter in mm (3.2 mm exists on the mini series). |
| M5 / 01 / 02 / 03 / 04 | Thread: M5x0.8, 1/8", 1/4", 3/8", 1/2" (M3 on the mini series). |
| D | Black. Blank = grey. |
Fitting & Sealing Notes
- check Cut the tube square and clean before pushing it home, or the seal will leak.
- check Push until it stops, then pull back to check the chuck has gripped.
- check To release, press the collet ring fully in and pull the tube out.
- check Threaded parts arrive with sealant on the thread; M5 sizes use a sealing gasket.
- check Match the tube OD exactly - a 6 mm fitting will not hold 1/4" tube.
Where the Airtac PGJ Plug Pin Reducing Straight Connector PGJ8-6 Is Used
Pick-and-place gripper feed
On a robotic pick-and-place head, an 8 mm drop from the main air block steps down to a 6 mm line feeding a compact pneumatic gripper, keeping the end-of-arm wiring and tubing bundle light.
Carton sealer blow-off
Along a carton sealing machine, an 8 mm trunk run reduces to 6 mm for short branches driving small blow-off nozzles that clear dust before the flap folder closes each box.
Solenoid valve pilot drop
In a control cabinet, an 8 mm distribution line steps down to 6 mm right at the manifold, sizing the pilot feed correctly for a bank of 5/2 solenoid valves without adapters.
Is the Airtac PGJ Plug Pin Reducing Straight Connector PGJ8-6 the Right Part?
This size sits mid-ladder. One step down is PGJ6-4, which hands off from a 6 mm run to a 4 mm pilot or sensor line and flows noticeably less, so keep it for small cylinders and air-assist circuits. One step up is PGJ10-8, the better choice when the 8 mm side is a main trunk feeding more than one downstream drop. The key rule either way: tube OD must match the socket exactly. A Dia 6 socket will not hold 1/4 inch tube, which measures 6.35 mm, so never mix nominal systems.
Choose PGJ over the fixed-diameter PG straight when you genuinely need two different line sizes at one joint, and use soft nylon or polyurethane tubing only. If your 6 mm side runs hot near the 70 C ceiling, remember the tubing itself is usually the limit, not the fitting body.
Quick checklist
- ✓ Tube outside diameter matches exactly
- ✓ Thread size and standard match the port
- ✓ Working pressure within 0 - 1.0 MPa (0 - 10 kgf/cm2)
- ✓ Temperature within -20 to +70 °C
Airtac PGJ Plug Pin Reducing Straight Connector PGJ8-6 FAQ
It is a plug-in reducer joining Dia 8 mm tube to Dia 6 mm tube, with no thread on either side. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), negative pressure is -750 mmHg (10 Torr), proof pressure is 1.5 MPa, and the temperature range is -20 to +70 C. Use soft nylon or polyurethane tubing on both ends.
No. One-touch sockets grip the exact listed OD only, and 1/4 inch tube measures 6.35 mm, which neither the 6 mm nor the 8 mm socket will seal. Keep both sides on true metric tube. Also note that because this joint is tube-to-tube, no thread sealant is involved - the seal is made entirely by the internal O-rings at each socket.
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