Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-40
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-40 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 SAIJ63X95-40
The AirTAC SAIJ63X95-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the travel window between 55 and 95 mm during commissioning. It delivers a robust 1559 N pull force at 0.5 MPa, making it well-suited for moderate-load industrial tasks. The extruded aluminum barrel includes sensor grooves on both sides for flexible positioning.
Equipped with a 20 mm carbon steel rod and an M16x1.5 thread, this unit handles side loads effectively, though longer unsupported strokes still require external guidance. It features PT tapered G3/8 ports and variable air cushions at both ends to decelerate the piston smoothly. The rear adjustment screw acts strictly as a travel stop to dial in the exact end position without adding external stops.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-40 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-40 |
|---|---|
| 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 SAIJ63X95-40
| 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 SAIJ63X95-40 Is Used
End-Position Tuning
Dial in the exact retract distance within the 55-95 mm window during machine setup without physically swapping the cylinder or adding external stopper blocks.
Product Changeover
Quickly adjust the travel end-stop on automated lines when processing different package sizes, minimizing downtime between production runs.
Assembly Pressing
Leverage the 1559 N pull force at 0.5 MPa to seat components, using the fine stroke adjustment to prevent overtravel and damage to delicate parts.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-40 the Right Cylinder?
Choose this 63 mm bore adjustable-stroke model when your application requires precise end-position tuning at commissioning or during product changeover, offering a 55-95 mm usable travel window rather than a fixed 95 mm stroke. If your force requirements are lower, stepping down to a 50 mm bore yields 825 N of pull force at 0.5 MPa, while stepping up to an 80 mm bore provides 2268 N. Because the rear adjuster and air cushions only decelerate the piston and do not hold the load without live air, consider a SAIL (air-released lock) or BSAI (clamp-lock) cylinder for fail-safe load holding.
To match this ISO 15552 dimensionally interchangeable cylinder for a replacement, verify the 63 mm bore, 95 mm stroke, 40 mm adjustment range, PT G3/8 port, and mounting style. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Since this SKU lacks the -S magnet suffix, it cannot host CMSE reed or DMSE electronic sensors without modification.
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 SAIJ63X95-40 FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the nominal 95 mm down to 55 mm, providing a 40 mm tuning window. It only sets the end position and does not lock the load without continuous air pressure.
At a 0.5 MPa operating pressure, this double-acting cylinder delivers 1559 N of pull force and 2182 N of push force. It operates at speeds between 30 and 800 mm/s.
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