Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-50
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 95mm 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
- Stroke95 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-50
The AirTAC SAIJ63X95-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 1559 N of push force at 0.5 MPa. It features a 63 mm bore, a 12 mm rod thread (M16x1.5), and PT tapered port threading (G3/8). The integrated rear stopper allows you to dial back the 95 mm nominal stroke by up to 50 mm, creating a highly flexible 45 to 95 mm usable travel window.
This wide adjustment range is ideal for product changeovers, letting you fine-tune end positions at commissioning without swapping hardware or adding external stops. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed or DMSE electronic switches, though a magnet is not included on this base configuration. Remember that the rear adjuster functions strictly as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-50 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 95 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 SAIJ63X95-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×95 | 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 SAIJ63X95-50 Is Used
Product Size Changeovers
Leverage the 45-95 mm travel window to rapidly accommodate varying package lengths on a packaging line without physically replacing the cylinder.
Prototype End-Stop Tuning
Dial in the exact retraction point during machine commissioning using the rear screw, avoiding the need to machine custom external spacers for the 63 mm bore.
Variable Assembly Pressing
Apply up to 1559 N of pushing force at 0.5 MPa for light-duty pressing tasks where the material thickness or engagement depth varies between production runs.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-50 the Right Cylinder?
Choose this 63 mm bore when an application requires approximately 1559 N of thrust at 0.5 MPa, stepping up from a 50 mm bore (982 N) or down from an 80 mm bore (2513 N). The 50 mm adjustment capacity is exceptionally large relative to the 95 mm stroke, making it perfect for prototyping or lines running multiple product sizes. Because the nominal stroke is under 300 mm, side-load stress on the 20 mm carbon steel rod is manageable without external guides, though the rod itself is not designed to support lateral loads.
To match this exact configuration for an ISO 15552 replacement, specify a 63 mm bore, 95 mm stroke, 50 mm adjustment range, PT port thread, and no magnet. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets. If your process requires true load-holding without continuous air pressure, you must integrate an external pilot-operated check valve or switch to an AirTAC SAIL or BSAI locking cylinder.
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 SAIJ63X95-50 FAQ
At a 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 2182 N.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke from its 95 mm nominal length down to as little as 45 mm. This stopper only sets the travel end point and does not lock the load; the cylinder remains double-acting and requires live air to hold position.
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