Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX300-100S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX300-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 300mm 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
- Stroke300 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX300-100S
The AirTAC SAIJ63X300-100-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. With a nominal 300 mm stroke and a 100 mm adjustment range, you can dial back the retract end-position to anywhere within a 200-300 mm usable travel window during commissioning. It delivers 1559 N of pull force at 0.5 MPa and uses a PT G3/8 port for pneumatic supply.
This SKU includes a SUS420J2 stainless steel rod (option A) for superior corrosion resistance compared to standard carbon steel. The -S magnet enables position sensing with AirTAC CMSE reed and DMSE electronic switches fitted into the dual-side sensor grooves on the extruded aluminum barrel. The rear screw acts purely as a travel stop for end-position tuning and does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX300-100S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX300-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 300 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 SAIJ63AX300-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×300 | 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 SAIJ63AX300-100S Is Used
Variable End-Stop Positioning
Dial in the exact retract distance between 200 and 300 mm during machine setup to accommodate varying material thicknesses without changing the physical cylinder.
Product Line Changeover
Quickly adjust the stroke window up to 100 mm when switching the production line to a new product size, minimizing downtime and avoiding mechanical cylinder swaps.
Corrosion-Resistant Actuation
Leverage the SUS420J2 stainless steel rod and 1559 N pull force in humid or mildly corrosive manufacturing environments where standard carbon rods would degrade.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX300-100S the Right Cylinder?
Choose this 63 mm bore when you need 1559 N pull force at 0.5 MPa (or 2182 N push at 0.7 MPa) and require significant on-machine flexibility. The 100 mm adjustment window is ideal for product changeovers on a single line, eliminating the need to physically swap cylinders or bolt on external stops. If your force requirements are lower, stepping down to a 50 mm bore yields 825 N pull at 0.5 MPa, while stepping up to an 80 mm bore provides 2268 N pull.
Because the 300 mm stroke exceeds the 27 mm cushion length, you must provide an external guide to prevent excessive side-loading on the 20 mm rod and M16x1.5 rod thread. For load-holding without continuous air pressure, select a SAIL pneumatic lock or BSAI clamp-lock cylinder instead of relying on this adjuster. This unit is dimensionally interchangeable per ISO 15552 and uses the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ63AX300-100S FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of pull force and 1402 N of push force. At the maximum 1.0 MPa pressure, it delivers up to 318 kgf.
The rear adjuster screw acts as a mechanical stop that lets you trim the effective stroke back by up to 100 mm, creating a 200-300 mm usable travel window. It only sets the end position and deceleration; it does not lock or hold the load without live air pressure.
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