Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX250-30
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX250-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 250mm 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
- Stroke250 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX250-30
The AirTAC SAIJ63X250-30 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 250 mm stroke that can be fine-tuned down by up to 30 mm, creating a precise 220-250 mm usable travel window. Delivering a push force of 1559 N at 0.5 MPa, it fits perfectly into mid-range pneumatic setups requiring exact end-position tuning.
This variant features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and uses PT tapered port threads with a G3/8 connection. The extruded aluminum barrel includes sensor grooves on both sides, allowing for straightforward positioning feedback when paired with AirTAC CMSE reed or DMSE electronic sensors.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX250-30 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX250-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 250 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 SAIJ63AX250-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×250 | 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 SAIJ63AX250-30 Is Used
Product Changeover
Quickly adapt end positions for varying product sizes on a packaging line without replacing the cylinder.
Machine Setup
Fine-tune the 220-250 mm travel window during commissioning to achieve exact tooling alignment.
Variable End Stops
Dial in the precise retraction point for assembly processes that require flexible stopping distances.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX250-30 the Right Cylinder?
Select this 63 mm bore cylinder when an application requires a 220-250 mm travel window and approximately 1559 N of thrust at 0.5 MPa. If your process demands less force, stepping down to a 50 mm bore yields 982 N; if more power is needed, an 80 mm bore provides 2513 N. The adjustable stroke is ideal for machine changeovers, letting you dial in the exact end-stop without swapping cylinders or adding external stops.
Because the stroke is 250 mm, ensure adequate external guiding to prevent excessive side loading on the rod. The rear adjuster acts strictly as a travel stop and does not hold the load without live air; for fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder. This model uses the SAIJ mounting subset (Basic, FA, LB, TC, FTC, TCM1, TCM2) and 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 SAIJ63AX250-30 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides a push force of 1559 N and a pull force of 1402 N. At 0.7 MPa, the push force increases to 2182 N.
The rear adjuster screw allows you to shorten the effective travel from the nominal 250 mm down to 220 mm. This stopper only sets the end position and does not lock the load without continuous air pressure.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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