Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-30S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-30S 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 SAIJ63AX270-30S
The AirTAC SAIJ63X270-30-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 270 mm stroke that can be dialed back by up to 30 mm, giving you a usable travel window of 240-270 mm to perfectly dial in end positions during commissioning. This 63 mm bore generates 1559 N of pull force at 0.5 MPa and 2805 N of push force at 0.9 MPa.
This SKU features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and includes a magnet (-S) for position sensing. You can mount AirTAC CMSE reed or DMSE electronic solid-state switches directly into the sensor grooves on both sides of the extruded aluminum barrel. It uses a G3/8 port and offers adjustable air cushions at both ends to decelerate the load smoothly.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-30S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-30S |
|---|---|
| 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 SAIJ63AX270-30S
| 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 SAIJ63AX270-30S Is Used
End-Stop Calibration
Dial in the exact 240-270 mm travel distance during machine setup to perfect the final resting position of your tooling without mechanical rework.
Product Changeover
Quickly adjust the rear stopper by up to 30 mm on packaging lines when switching to a different product size, minimizing downtime.
Precision Forming
Leverage the 2805 N push force at 0.9 MPa to press or form components, using the adjustable stroke to control the exact depth of operation.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-30S the Right Cylinder?
Choose this 63 mm bore when you need 1559 N of pull force at 0.5 MPa; stepping down to a 50 mm bore drops that to 825 N, while an 80 mm bore increases it to 2268 N. The adjustable stroke is selected over a fixed SAI cylinder when you need variable end-stops or fine-tuning during product changeovers without adding external stops. For any stroke of 270 mm, ensure you use an external guide to support the load, as the 20 mm rod diameter and M16x1.5 thread can only handle limited side loading.
To match this ISO 15552 dimensionally interchangeable cylinder, specify: 63 mm bore, 270 mm stroke, 30 mm adjustment, PT tapered port threads, SUS420J2 rod, and a magnet for CMSE/DMSE sensors. Remember that the rear adjuster acts only as a travel stop, not a lock; the cylinder will not hold its position without live air. For load-holding without pressure, consider the SAIL or BSAI series. Available mountings include 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 SAIJ63AX270-30S FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 30 mm. This creates a usable travel window of 240-270 mm, letting you fine-tune the retract end position at commissioning without swapping the cylinder.
At 0.5 MPa it provides 1559 N of push force and 1402 N of pull force. At 0.9 MPa, the push force increases to 2805 N.
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