Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-20
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-20 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 SAIJ63X95-20
The AirTAC SAIJ63X95-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers 1559N of push force at 0.5 MPa and uses a G3/8 port. The integrated adjustment screw allows you to fine-tune the effective travel down from the 95mm nominal stroke, creating a precise 75-95mm usable window. This built-in adjustability is ideal for dialing in end positions at commissioning without adding external stops.
This extruded aluminum profile barrel includes sensor grooves on both sides for straightforward CMSE or DMSE switch mounting. The 20mm diameter carbon steel rod with an M16x1.5 thread provides solid rigidity, though long unsupported strokes still require an external guide. The rear adjuster acts purely as a travel stop to set the deceleration point, not as a lock to hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-20 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-20 |
|---|---|
| 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 SAIJ63X95-20
| 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 SAIJ63X95-20 Is Used
Machine Changeover
Dial in the 75-95mm travel window instantly when switching product sizes on a packaging line, avoiding the need to physically swap out cylinders.
End-Stop Calibration
Fine-tune the exact retracted position during initial commissioning using the rear screw, ensuring perfect alignment without external spacers.
Assembly Pressing
Leverage the 1559N push force at 0.5 MPa to seat components, using the adjustable stop to prevent over-travel and damage to delicate parts.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-20 the Right Cylinder?
Choose this 63mm bore when you need more force than the 50mm SAIJ variant (which provides 982N push at 0.5 MPa) but want to avoid stepping up to the heavier 80mm bore. The SAIJ63X95-20 is selected specifically when a 95mm nominal stroke needs on-the-fly trimming, such as during a machine changeover or to perfect a product-size transition. It uses a PT tapered port thread and standard carbon steel rod.
For load-holding applications without continuous air pressure, this cylinder is not suitable since the rear adjuster only functions as a mechanical stop. In those cases, direct your selection toward the SAIL (air-released lock) or BSAI (clamp-lock) series instead. This model supports a mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting 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 SAIJ63X95-20 FAQ
At 0.5 MPa operating pressure, this 63mm bore cylinder generates 1559N of push force and 1402N of pull force. At the maximum 1.0 MPa, it can deliver up to 318 kgf.
The rear adjuster screw lets you mechanically shorten the 95mm nominal stroke by up to 20mm, providing an effective travel range of 75-95mm. This allows precise end-position tuning at commissioning without replacing the cylinder.
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