Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX100-50S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX100-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 100mm 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
- Stroke100 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX100-50S
The AirTAC SAIJ63X100-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 100 mm stroke that you can fine-tune down by up to 50 mm, yielding a highly flexible 50-100 mm usable travel window. In the 63 mm bore class, it delivers 1559 N of push force and 1402 N of pull force at 0.5 MPa, making it well-suited for mid-range industrial positioning.
This SKU is configured with an SUS420J2 stainless steel rod (option A) for superior corrosion resistance and includes a standard magnet (-S) for position sensing. The magnet works seamlessly with AirTAC CMSE reed and DMSE electronic solid-state switches mounted into the dual-side sensor grooves on the extruded aluminum barrel. The rear adjustment screw acts purely as a mechanical stop to set the end position and does not lock the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX100-50S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX100-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 100 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 SAIJ63AX100-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×100 | 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 SAIJ63AX100-50S Is Used
Variable End-Stop Positioning
Dial in the exact end-position for automated assembly presses, trimming the 100 mm stroke back by up to 50 mm to accommodate different material thicknesses on the fly.
Product Changeover Systems
Rapidly adjust the travel window from 50 to 100 mm during packaging line size changes without removing the cylinder or bolting on external mechanical stops.
Corrosion-Resistant Actuation
Leverage the SUS420J2 stainless steel rod and DMSE electronic sensors for reliable mid-force (1559 N push) positioning in washdown or mildly corrosive environments.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX100-50S the Right Cylinder?
Select this 63 mm bore adjustable cylinder when your application requires variable end-stops for frequent product changeovers, allowing you to trim the travel from 100 mm down to 50 mm without swapping out physical hardware. If your process demands less force, stepping down to a 50 mm bore yields 982 N push at 0.5 MPa; for heavier loads, an 80 mm bore provides 2513 N push. Remember that the rear adjuster and air cushions only decelerate the travel end—they do not hold the load. For fail-safe load holding without live air, use an SAIL pneumatic lock or BSAI clamp-lock cylinder.
This model features PT tapered port threads (G3/8) and supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because it is dimensionally interchangeable per ISO 15552, it directly replaces other ISO 15552 profile cylinders using the exact same mounting footprint. For any stroke length of 300 mm or more, always add an external guide to support the rod and prevent excessive side-loading.
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 SAIJ63AX100-50S FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. At the maximum rated pressure of 1.0 MPa, it can deliver up to 318 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 100 mm nominal stroke by up to 50 mm, creating a 50-100 mm usable travel window. It only sets the end position and does not lock the load without continuous air pressure.
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