Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X240-50S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X240-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 240mm 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
- Stroke240 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X240-50S
The AirTAC SAIJ63X240-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 240 mm stroke that can be dialed back by up to 50 mm, yielding a precise 190-240 mm usable travel window for exact end-position tuning during commissioning. Delivering 1559 N of pull force at 0.5 MPa, it handles mid-range automation tasks with ease. The extruded aluminum barrel features sensor grooves on both sides, and this -S variant includes a magnet for use with AirTAC CMSE reed and DMSE solid-state sensors.
This model utilizes a carbon steel piston rod and PT tapered port threads. The rear adjuster acts purely as a mechanical stop to set the travel end and deceleration point alongside the standard air cushions; it does not hold the load without live air pressure. For load-holding requirements without continuous air supply, consider the SAIL or BSAI series instead.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X240-50S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X240-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 240 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 SAIJ63X240-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×240 | 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 SAIJ63X240-50S Is Used
Machine Changeover
Dial in the 190-240 mm stroke window during product size changes without physically swapping the cylinder or repositioning hard stops.
End-Position Tuning
Fine-tune the retract end position at commissioning to absorb mechanical tolerances and ensure precise placement of the 63 mm bore tooling.
Assembly Line Indexing
Provides 1559 N of pull force at 0.5 MPa for moving mid-weight pallets, with the rear adjuster allowing quick line resets.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X240-50S the Right Cylinder?
Choose this 63 mm bore when your application requires around 1559 N of pull force at 0.5 MPa, stepping up from a 50 mm bore (982 N pull) for heavier workpieces. The 50 mm adjustment range is ideal for product changeovers, letting you fine-tune the 190-240 mm travel window without swapping cylinders or adding external stops. For fixed-stroke needs without commissioning adjustments, the standard SAI series is sufficient.
When replacing an ISO 15552 cylinder, match the 63 mm bore, 240 mm stroke, 50 mm adjustment, G3/8 port, and PT thread type. This SAIJ variant supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the 240 mm stroke is under the 300 mm side-load threshold, the 20 mm rod handles standard loads well, though external guides are recommended for heavy off-center 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 SAIJ63X240-50S FAQ
At a 0.5 MPa operating pressure, this 63 mm bore cylinder generates 1559 N of pull force and 2182 N of push force. It can deliver up to 318 kgf at its maximum 1.0 MPa pressure.
The rear adjuster screw lets you shorten the effective travel from the nominal 240 mm down to 190 mm, creating a 190-240 mm adjustable window. It functions as a travel stop and does not lock the load without live air pressure.
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