Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-10
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-10 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 SAIJ63AX270-10
The AirTAC SAIJ63X270-10 is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, delivering 1559N push force at 0.5 MPa. It features a 63mm bore, a 270mm nominal stroke, and a fine-tuning range of up to 10mm, creating a usable travel window between 260 and 270mm. This built-in adjustability allows you to dial in the exact retract end-position during commissioning without adding external stops.
This model is equipped with a SUS420J2 stainless steel rod for enhanced durability and uses PT tapered port threads (G3/8). The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE and DMSE switches. It supports a speed range of 30-800 mm/s and uses adjustable air cushions at both ends to decelerate the load smoothly.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-10 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-10 |
|---|---|
| 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 SAIJ63AX270-10
| 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 SAIJ63AX270-10 Is Used
End-Stop Calibration
Perfect for dialing in the exact retract position on machining fixtures where a 10mm window allows micro-adjustments without swapping cylinders.
Product Changeover
Enables rapid adjustment of the stroke end-position on packaging lines when switching between slightly different carton sizes.
Assembly Pressing
Provides 1559N of thrust at 0.5 MPa for pressing operations, with the rear stop allowing precise depth control during commissioning.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-10 the Right Cylinder?
Choose this 63mm bore when you need higher thrust than a 50mm cylinder (which provides 982N push at 0.5 MPa) but want to avoid the larger footprint and higher air consumption of an 80mm model. The 10mm rear adjuster is ideal for applications requiring slight end-position tweaks during machine setup or product changeover, rather than the wide travel changes of a 50mm adjuster. Since the 270mm stroke exceeds 300mm? No, it is under 300mm, so standard side-load precautions apply but external guides are only mandatory for longer unsupported strokes. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for fail-safe load holding, consider an external rod lock or pilot-operated check valve. When replacing an ISO 15552 cylinder, match the 63mm bore, 270mm stroke, PT G3/8 port, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), which omits FB, CA, CB, and CR brackets.
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 SAIJ63AX270-10 FAQ
At 0.5 MPa operating pressure, this 63mm bore cylinder provides 1559N of push force and 1402N of pull force. At the maximum pressure of 1.0 MPa, it can deliver up to 318 kgf.
The rear adjusting screw acts as a mechanical stopper that can shorten the effective stroke by up to 10mm, giving you a usable travel window of 260-270mm. It allows fine-tuning of the end position at commissioning but does not lock or hold the load without continuous air pressure.
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