Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX195-40S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX195-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 195mm 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
- Stroke195 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX195-40S
The AirTAC SAIJ63X195-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 195 mm stroke that can be dialed back by up to 40 mm, yielding a usable travel window of 155-195 mm for precise end-position tuning during commissioning. In this configuration, the 20 mm carbon steel piston rod is upgraded to SUS420J2 stainless steel (code A) for superior corrosion resistance, and the -S magnet enables position detection via AirTAC CMSE reed or DMSE electronic solid-state sensors.
Operating within a 0.15-1.0 MPa pressure range, this 63 mm bore generates 1559 N of push thrust and 1402 N of pull thrust at 0.5 MPa. The rear adjustment screw acts purely as a mechanical stop to set the retract end position; it does not lock or hold the load without live air pressure. For load-holding applications, consider the SAIL or BSAI series instead.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX195-40S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX195-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 195 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 SAIJ63AX195-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×195 | 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 SAIJ63AX195-40S Is Used
End-Position Tuning
Dial in the exact retract distance within the 155-195 mm window during machine commissioning without adding external stopper blocks.
Product Changeover
Quickly adapt the cylinder's effective stroke on packaging lines when switching between different product sizes or formats.
Automated Clamping
Provides 1559 N of adjustable clamping force at 0.5 MPa, allowing operators to fine-tune the clamping reach precisely.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX195-40S the Right Cylinder?
Select this adjustable model when a machine setup requires variable end-stops or fine-tuning without swapping hardware; for a fixed 195 mm travel, the standard SAI series is sufficient. This 63 mm bore offers a balanced force output, sitting between the 982 N push thrust of a 50 mm bore and the 2513 N available from an 80 mm bore at 0.5 MPa. Because the 195 mm stroke exceeds 300 mm? No, but for any stroke over 300 mm, always use an external guide to prevent excessive side-loading on the rod.
When matching an ISO 15552 replacement, verify the 63 mm bore, 195 mm stroke, 40 mm adjustment range, PT tapered port thread, and the -S magnet option. The SAIJ mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 accessories, deliberately omitting the FB, CA, CB, and CR mounts to streamline the profile design.
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 SAIJ63AX195-40S FAQ
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke by up to 40 mm. This creates a usable travel window of 155 to 195 mm. The adjuster only sets the travel end and does not lock the load without continuous air pressure.
At 0.5 MPa operating pressure, it generates 1559 N of push thrust and 1402 N of pull thrust. At the maximum 1.0 MPa pressure, the push force reaches 318 kgf.
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