Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-20
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 150mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke150 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-20
The AirTAC SAIJ80X150-20 is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, delivering 2513N of pull force at 0.5 MPa. It features a 25mm carbon steel rod and PT tapered G3/8 porting. The external rear screw provides a 130-150mm usable travel window, letting you trim up to 20mm from the 150mm nominal stroke.
This adjuster acts purely as a mechanical stop for end-position tuning during commissioning. It does not lock the load without live air pressure; for load-holding, consider the SAIL or BSAI variants. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed and DMSE electronic switches, though this specific SKU lacks the -S magnet.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 150 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-20 Is Used
Machine Changeover
Dial in the 130-150mm travel window during product size changes without replacing the cylinder or bolting on external stoppers.
End-Position Tuning
Use the rear adjuster to precisely set the retract distance at commissioning, compensating for mechanical tolerances in the fixture.
Variable End Stops
Ideal for diverters or gates where the actuation endpoint must be occasionally trimmed back by up to 20mm to handle varying package sizes.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-20 the Right Cylinder?
Choose this 80mm bore when an application requires 2513N pull force at 0.5 MPa, bridging the gap between the 63mm bore (1402N pull) and the 100mm bore (3681N pull). The 20mm adjustment window is ideal for product changeovers, allowing you to fine-tune the retract end position without swapping cylinders or adding external stops. Unlike a fixed-stroke SAI, this SAIJ variant accommodates variable end-stops on the fly.
For a direct ISO 15552 replacement, match the 80mm bore, 150mm stroke, 20mm adjustment, PT G3/8 port, and standard carbon steel rod. Since this model uses a subset of mounts (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB/CA/CB/CR, verify your bracket compatibility. At 150mm stroke, side-load risks are moderate, but ensure external guiding for heavy offsets.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-20 FAQ
At 0.5 MPa, this 80mm bore cylinder provides 2513N of pull force and 3518N of push force. At the maximum operating pressure of 1.0 MPa, it delivers up to 513 kgf.
The rear adjuster screw lets you shorten the effective travel from the 150mm nominal stroke down to 130mm. It functions as a mechanical stop for fine-tuning and does not hold the load without live air.
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