Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X950-30S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X950-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 950mm 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
- Stroke950 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X950-30S
The AirTAC SAIJ63X950-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 1559N of pull force at 0.5 MPa. It features a carbon steel rod and a PT tapered port. The integrated magnet (-S) allows seamless positioning feedback using AirTAC CMSE reed or DMSE electronic sensors housed in the dual-side barrel grooves.
With a nominal 950mm stroke and a 30mm adjustment range, this model provides a usable travel window of 920-950mm. This built-in stopper allows you to fine-tune the retract end-position during commissioning without adding external physical stops. The adjuster solely dictates the travel endpoint and does not function as a load lock, meaning live air pressure is required to hold the rod in place.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X950-30S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X950-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 950 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 SAIJ63X950-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×950 | 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 SAIJ63X950-30S Is Used
Machine Changeover
Dial in the 920-950mm travel window during product size changes without swapping the physical cylinder or adding external stopper blocks.
Extended Stroke Positioning
Handle long-travel conveying tasks where the 950mm stroke requires fine-tuning at the retract end to perfectly seat parts.
Sensor-Driven Assembly
Leverage the -S magnet with DMSE electronic sensors to confirm rod position in automated assembly lines operating at 30-800mm/s.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X950-30S the Right Cylinder?
Select this 63mm bore cylinder when an application requires precise end-position tuning within a 920-950mm travel window. If your setup needs less force, stepping down to a 50mm bore yields 825N of pull force at 0.5 MPa; stepping up to an 80mm bore provides 2268N. Because the stroke is 950mm, an external guide is strongly recommended to prevent excessive side-loading on the rod.
An adjustable stroke is ideal for machine changeovers or product-size variations, eliminating the need to physically swap cylinders as you would with a fixed-stroke SAI model. To replace an ISO 15552 cylinder, match the 63mm bore, 950mm stroke, 30mm adjustment, PT port, and -S magnet. Note that SAIJ utilizes a specific mounting subset: 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 SAIJ63X950-30S FAQ
At 0.5 MPa, 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 acts as a stopper that trims the effective travel back by up to 30mm, creating a 920-950mm usable window. It sets the end position but does not lock the load without live air pressure.
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