Airtac SAIJ80 Adjustable Cylinder SAIJ80X290-75
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X290-75 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 SAIJ80X290-75
The AirTAC SAIJ80X290-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers a robust 2513N push force at 0.5 MPa, utilizing a 25mm carbon steel rod and G3/8 PT ports. By turning the rear stopper screw, you achieve a usable travel window of 215 to 290 mm, enabling precise end-position tuning during commissioning without swapping hardware.
This adjustable mechanism acts strictly as a travel stop to set the retract end, not as a lock. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches. It supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X290-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X290-75 |
|---|---|
| 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 SAIJ80X290-75
| 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 SAIJ80X290-75 Is Used
Product Changeover
Dial in a new retract end-stop of 215 to 290 mm instantly on the factory floor when switching between product sizes, avoiding external stop hardware swaps.
Commissioning Tuning
Fine-tune the final end position during machine setup to perfect a pressing or clamping action, using the rear screw to hit the exact target without cylinder removal.
Variable End Stops
Adjust the effective travel distance on automated machinery to accommodate different material lengths or pusher depths without changing the entire actuator.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X290-75 the Right Cylinder?
Choose this 80mm bore when the neighboring 63mm class (providing 1559N at 0.5 MPa) is insufficient for your load, but the 100mm bore (3927N) would be excessive. The 75mm adjustment range is selected for applications requiring frequent product changeover, allowing you to dial in a new end-stop rapidly instead of adding external mechanical stops. For exact ISO 15552 interchangeability, match the 80mm bore, 290mm stroke, PT G3/8 port, and the specified mounting bracket.
Because the 290mm stroke is relatively long, the 25mm rod with its M20x1.5 thread can carry substantial side loads, but an external guide rail is still recommended to prevent binding. If your process requires the load to be held mechanically without live air pressure, note that this rear adjuster only decelerates the stroke end. You must look to an SAIL air-released lock or BSAI clamp-lock cylinder for true load-holding capability.
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 SAIJ80X290-75 FAQ
At 0.5 MPa, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At the maximum operating pressure of 1.0 MPa, it delivers a maximum push force of 513 kgf.
The rear stopper screw allows you to shorten the 290mm nominal stroke by up to 75mm, creating an adjustable travel window of 215 to 290mm. This screw acts as a travel stop to set the end position and does not lock the load without live air pressure.
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