Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-100
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 270mm 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
- Stroke270 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-100
The AirTAC SAIJ63X270-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 170-270 mm usable travel window. Built with an extruded aluminum barrel, it delivers 1559 N of pull force at 0.5 MPa and 2182 N of push force at 0.7 MPa. The rod is constructed from SUS420J2 stainless steel for improved corrosion resistance, and the PT tapered ports measure G3/8.
This model allows precise end-position tuning at commissioning without swapping hardware or adding external stops. The rear adjuster acts purely as a travel stop to set deceleration, meaning it will not hold a load without live air pressure. For position holding without pneumatic pressure, consider the SAIL or BSAI series. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-100 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 270 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 SAIJ63AX270-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×270 | 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 SAIJ63AX270-100 Is Used
Variable End-Stop Tuning
Dial in the exact 170-270 mm travel distance during machine commissioning to accommodate different product lengths without physically changing the cylinder.
Product Changeover
Quickly adjust the rear stopper on a packaging conveyor to handle varying box sizes on the fly, minimizing line downtime.
Machine Setup Calibration
Fine-tune the retract end-position precisely to align tooling, preventing hard mechanical crashes during initial equipment setup.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-100 the Right Cylinder?
Choose this 63 mm bore when an application requires moderate thrust (1559 N pull at 0.5 MPa) and variable end-stops. If you need higher force, stepping up to the 80 mm bore yields 2268 N of pull at 0.5 MPa. Conversely, dropping to a 50 mm bore reduces pull force to 825 N. The 100 mm adjustment range is ideal for product-size changeovers on a packaging line, replacing fixed-stroke SAI cylinders where external stops are impractical.
Because the nominal 270 mm stroke exceeds 300 mm when fully extended, an external guide is recommended to prevent excessive side-loading on the SUS420J2 stainless rod. When replacing an ISO 15552 cylinder, match the 63 mm bore, 270 mm stroke, 100 mm adjustment, G3/8 PT ports, and mounting interface. Note that this SKU omits the -S magnet; adding it enables AirTAC CMSE reed and DMSE electronic sensors.
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 SAIJ63AX270-100 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of pull force and 1402 N of push force. At 0.7 MPa, the push force increases to 2182 N.
The rear adjuster acts as a stopper that can shorten the nominal 270 mm stroke by up to 100 mm, creating a 170-270 mm travel window. It functions as a travel stop and does not lock the load without live air pressure.
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