Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX195-40
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX195-40 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 SAIJ63AX195-40
The AirTAC SAIJ63X195-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the effective travel anywhere within a 155-195 mm window. It delivers a robust 1559 N pull force at 0.5 MPa, making it well-suited for moderate-duty positioning tasks. The extruded aluminum barrel features sensor grooves on both sides for straightforward detection setup.
This variant features a SUS420J2 stainless steel piston rod (code A) for improved corrosion resistance and uses PT tapered port threads. The rear adjuster acts purely as a mechanical stop to set the end position and relies on the built-in air cushions for deceleration; it does not hold the load without live air pressure. Mounting options include the reduced SAIJ set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX195-40 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX195-40 |
|---|---|
| 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 SAIJ63AX195-40
| 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 SAIJ63AX195-40 Is Used
Machine Changeover
Dial in the 155-195 mm travel window during product size transitions without physically replacing the cylinder or adding external stop blocks.
End-Position Tuning
Use the rear adjusting screw at commissioning to precisely set the retract stroke endpoint, accommodating minor mechanical variations in the fixture.
Assembly Line Indexing
Provides reliable 1559 N pull force at 0.5 MPa for moving moderate payloads, while the double-acting design ensures consistent return strokes.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX195-40 the Right Cylinder?
Choose this 63 mm bore if you need more thrust than the 50 mm size (which provides 825 N pull at 0.5 MPa) but want to avoid the larger footprint of the 80 mm option. The adjustable stroke is ideal for machine setups requiring exact end-position tuning during commissioning or product changeover, eliminating the need to swap out a fixed-stroke SAI cylinder or bolt on external stops. Because the rear adjuster and air cushions only manage travel deceleration and do not lock the load, you must maintain live air pressure or use a SAIL or BSAI cylinder for true fail-safe holding. To match this ISO 15552 replacement exactly, specify the 63 mm bore, 195 mm stroke, 40 mm adjustment, PT G3/8 ports, the desired mounting style, and no magnet.
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 SAIJ63AX195-40 FAQ
At 0.5 MPa, this 63 mm bore cylinder provides 1559 N of pull force and 2182 N at 0.7 MPa. The maximum thrust is 318 kgf at 1.0 MPa.
The rear adjuster allows you to shorten the 195 mm nominal stroke by up to 40 mm, creating a usable travel window of 155-195 mm. It functions as a mechanical stop and relies on air cushions for deceleration, so it will not hold the load without continuous air pressure.
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