Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX290-75S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX290-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm 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.
- BoreØ63 mm
- Stroke290 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX290-75S
The AirTAC SAIJ63X290-75-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 1559 N push force at 0.5 MPa, utilizing a G3/8 port and an M16x1.5 rod thread. Because this SKU carries the -75 adjustment code, its usable travel window spans 215 to 290 mm, allowing precise end-position tuning without swapping out the physical cylinder.
This configuration includes an integrated magnet (-S) for direct compatibility with AirTAC CMSE reed and DMSE electronic sensors. The piston rod is constructed from SUS420J2 stainless steel (material code A) for enhanced corrosion resistance. The rear adjuster acts purely as a mechanical stop to set the retraction end-point; it does not lock or hold the load without continuous live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX290-75S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX290-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 290 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX290-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | 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 SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX290-75S Is Used
Product Changeover Tuning
Dial in the 215 to 290 mm stroke window on the fly during packaging line format changes, accommodating different carton sizes without replacing hardware.
End-Stop Calibration
Fine-tune the retraction end-position during machine commissioning to prevent mechanical crashes, using the rear screw rather than adding external stopper blocks.
Variable Positioning Stops
Provide adjustable physical endpoints for automated assembly presses that need to handle multiple part heights within the 75 mm adjustment band.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX290-75S the Right Cylinder?
Choose this 63 mm bore when you need higher thrust than a 50 mm cylinder (which provides 982 N push at 0.5 MPa) but want to avoid the larger footprint of an 80 mm option. The adjustable stroke is ideal for machine setups requiring variable end-stops or frequent product-size changeovers, whereas a fixed SAI cylinder is better suited for static, unchanging strokes. To replace this cylinder with another ISO 15552 component, match the 63 mm bore, 290 mm stroke, 75 mm adjustment range, PT tapered port threads, and the -S magnet option.
Since the 290 mm stroke is substantial, the M16x1.5 rod will experience deflection under high side loads. An external guide mechanism should be installed to prevent premature seal wear. If your application requires true load-holding without live air pressure, consider the SAIL pneumatic lock or BSAI clamp-lock series instead of relying on the rear stopper. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX290-75S FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
The rear adjuster screw allows you to trim the effective stroke back by up to 75 mm from the nominal 290 mm, creating a usable travel window of 215 to 290 mm. This mechanical stop sets the end position but does not hold the load without live air.
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