Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 290mm 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
- Stroke290 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-30
The AirTAC SAIJ80X290-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 290 mm nominal stroke by up to 30 mm for a usable travel window of 260-290 mm. It delivers robust thrust, generating 2513 N of push force and 2268 N of pull force at 0.5 MPa, making it suitable for heavy-duty positioning tasks. The extruded aluminum barrel features sensor grooves on both sides for straightforward detection integration.
This unit features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. It uses PT tapered port threads (G3/8) and includes variable air cushions at both ends to manage deceleration. The rear adjuster acts purely as a mechanical stop to set the end position and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 290 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 SAIJ80AX290-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×290 | 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 SAIJ80AX290-30 Is Used
Machine Changeover
Quickly fine-tune the 260-290 mm travel end-stop during product size transitions without physically replacing the cylinder or reengineering fixed stops.
Heavy-Duty Positioning
Leverage the 2513 N push force at 0.5 MPa to move substantial jigs or workpieces into exact alignment before a secondary clamping operation takes over.
Assembly Line Setup
Dial in the exact retraction point during initial commissioning to accommodate varying part tolerances, using the 30 mm adjustment window to perfect the stroke.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-30 the Right Cylinder?
Choose this 80 mm bore when an application requires more force than the 63 mm class (1559 N push at 0.5 MPa) but does not need the full output of a 100 mm cylinder (3927 N push). The adjustable stroke is ideal for machine setups requiring fine end-position tuning during commissioning or product changeovers, eliminating the need to swap cylinders or add external stops. Because the nominal stroke is 290 mm, ensure adequate external guiding to prevent excessive side loading on the rod.
For an exact ISO 15552 replacement match, verify the 80 mm bore, 290 mm stroke, 30 mm adjustment range, PT G3/8 port, and the required mounting style. SAIJ supports a specific subset of mounts: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Remember that the rear adjuster is a travel stop, not a lock; for load-holding without live air, consider an AirTAC SAIL or BSAI cylinder.
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 SAIJ80AX290-30 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from the 290 mm nominal stroke down to 260 mm. It sets the end position but does not lock the load without continuous air pressure.
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