Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX275-10
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX275-10 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 SAIJ63AX275-10
The AirTAC SAIJ63X275-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 1559N of push force at 0.5 MPa. It features a SUS420J2 stainless steel rod and a PT tapered port. By turning the rear screw, you achieve a usable travel window of 265-275mm, allowing exact end-position tuning without swapping hardware.
This adjustable-stroke design is ideal for product changeovers, letting you trim the retract distance on the fly. The extruded aluminum barrel includes sensor grooves on both sides for CMSE or DMSE switches, though this specific SKU lacks the internal magnet. Remember that the rear adjuster functions strictly as a travel stop, not a load lock.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX275-10 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX275-10 |
|---|---|
| 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 SAIJ63AX275-10
| 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 SAIJ63AX275-10 Is Used
End-Stop Calibration
Dial in the exact 265-275mm retract position during machine commissioning to perfect part seating without adding external stopper blocks.
Product Changeover
Quickly adjust the stroke by up to 10mm on packaging lines when switching to a slightly different product size.
Machining Clamping
Securely clamp workpieces using 1559N of push force at 0.5 MPa while fine-tuning the clamping depth precisely.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX275-10 the Right Cylinder?
Choose this 63mm bore when you need more thrust than a 50mm cylinder (982N push at 0.5 MPa) but want to avoid the bulk of an 80mm unit (2513N). The 10mm adjustment window is perfect for fine-tuning machine setup rather than making massive travel changes. For fixed-travel needs without commissioning tweaks, a standard SAI cylinder suffices.
Because the stroke is 275mm, ensure external guides support the load to prevent excessive side-loading on the rod. This model uses PT tapered ports and omits the magnet. If your application requires holding the load without live air pressure, integrate an external SAIL pneumatic lock or a pilot-operated check valve, as the adjuster and air cushions cannot hold loads.
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 SAIJ63AX275-10 FAQ
At 0.5 MPa operating pressure, this 63mm bore cylinder provides 1559N of push force and 1402N of pull force. At 0.7 MPa, the push force increases to 2182N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 275mm nominal stroke by up to 10mm, creating a 265-275mm travel window. It only sets the end position and does not lock the load without live air.
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