Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX100-75
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX100-75 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 SAIJ63AX100-75
The AirTAC SAIJ63X100-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel. With a 100 mm nominal stroke and a 75 mm adjustment code, it provides a usable travel window of 25 to 100 mm. This bore delivers a robust push force of 1559 N at 0.5 MPa, making it suitable for medium-duty operations.
This model features a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and uses PT tapered port threads. It includes variable air cushions at both ends with a 36 mm cushion length. The rear adjuster acts strictly as a travel stop to set end positions, so it will not hold the load without live air pressure; for true load-holding, consider the SAIL or BSAI series.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX100-75 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX100-75 |
|---|---|
| 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 SAIJ63AX100-75
| 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 SAIJ63AX100-75 Is Used
Machine Changeover
Dial in the 25 to 100 mm travel window during product-size changeovers without replacing the cylinder or bolting on external stops.
End-Position Tuning
Fine-tune the retract end position at commissioning using the rear adjuster to perfect the placement of medium-duty components.
Variable Assembly Stops
Adapt the stroke on automated lines to handle different package sizes, relying on the 1559 N push force at 0.5 MPa to move loads.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX100-75 the Right Cylinder?
Choose this 63 mm bore when your application requires more force than the 50 mm version, which provides 982 N of push force at 0.5 MPa, but you do not need the higher capacity of the 80 mm bore. The 75 mm adjustment range is ideal for machine setups requiring frequent product-size changeovers, allowing you to fine-tune the end stop without swapping cylinders or adding external stops. As a dimensionally interchangeable ISO 15552 cylinder, it matches standard SAI mounting dimensions with PT ports and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts. For load-holding without live pressure, use an external rod lock or pilot-operated check valve.
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 SAIJ63AX100-75 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides a push force of 1559 N and a pull force of 1402 N. At the maximum pressure of 1.0 MPa, it delivers up to 318 kgf.
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the 100 mm nominal stroke by up to 75 mm. This creates a usable travel window of 25 to 100 mm for fine-tuning end positions without replacing the cylinder.
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