Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX275-100S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX275-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 275mm 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
- Stroke275 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX275-100S
The AirTAC SAIJ63X275-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 175 to 275 mm. Delivering 1559 N of pull force at 0.5 MPa, it features a SUS420J2 stainless steel piston rod for enhanced durability against moisture. The integrated magnet enables position sensing with CMSE reed or DMSE solid-state switches.
This adjustable-stroke model allows operators to fine-tune end positions during commissioning without adding external stops. It utilizes a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and features PT tapered ports sized at G3/8. The rear adjuster acts purely as a travel stop to set deceleration, meaning it will not hold a load safely without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX275-100S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX275-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 275 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 SAIJ63AX275-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×275 | 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 SAIJ63AX275-100S Is Used
Machine Changeover
Dial in the exact end position for new product runs by adjusting the rear stopper up to 100 mm, eliminating the need to physically swap cylinders on the line.
Variable End-Stop Setup
Perfect for test rigs and assembly stations where the effective travel window of 175-275 mm must be frequently fine-tuned during commissioning.
Packaging Positioning
Provides reliable 1559 N pull force for actuating packaging flaps or stops, with a SUS420J2 rod offering corrosion resistance in washdown environments.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX275-100S the Right Cylinder?
Choose this 63 mm bore when an application requires around 1559 N pull force at 0.5 MPa, stepping down to a 50 mm bore (825 N pull) for lighter loads or up to an 80 mm bore (2268 N pull) for heavier demands. An adjustable stroke is ideal for machines processing varying product sizes, allowing rapid changeovers by dialing the rear stopper back up to 100 mm instead of swapping the entire cylinder.
For load-holding without continuous air pressure, this cylinder is insufficient as the adjuster is not a brake; consider the SAIL (air-released lock) or BSAI (clamp-lock) variants. Because the 275 mm stroke exceeds 300 mm? No, but for any stroke over 300 mm, ensure an external guide supports the rod to prevent side-load wear. This unit matches the ISO 15552 mounting interface, includes a -S magnet, and uses PT G3/8 ports.
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 SAIJ63AX275-100S FAQ
At 0.5 MPa, this 63 mm bore cylinder provides 1559 N of pull force and 2182 N at 0.7 MPa. The 100 mm adjustment code allows the nominal 275 mm stroke to be trimmed back, creating a usable travel window of 175 to 275 mm.
No, the rear adjuster functions only as a travel stop to set the end position and deceleration. It does not act as a lock or brake. For fail-safe load holding without live air, use an AirTAC SAIL or BSAI cylinder, or an external rod lock.
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