Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX1000-75
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX1000-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 1000mm 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
- Stroke1000 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX1000-75
The AirTAC SAIJ63X1000-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel by up to 75 mm. This yields a usable stroke window of 925-1000 mm, enabling precise end-position tuning at commissioning without swapping out the entire actuator. It delivers 1559 N of pull force at 0.5 MPa and utilizes a PT tapered port thread paired with a G3/8 air connection.
Equipped with a SUS420J2 stainless steel rod (option A), this 63 mm bore unit handles demanding environments better than standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is added later. Because the stroke reaches 1000 mm, an external guide is recommended to prevent excessive side-loading on the extended rod.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX1000-75 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX1000-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 1000 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 SAIJ63AX1000-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×1000 | 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 SAIJ63AX1000-75 Is Used
Variable End-Stop Tuning
Dial in the exact retraction point within the 925-1000 mm window during machine commissioning to accommodate varying product lengths without machining new hard stops.
Product Changeover
Quickly adjust the rear stopper by up to 75 mm when switching between different package sizes on a packaging line, minimizing downtime between production runs.
Long-Stroke Assembly
Leverage the 1559 N pull force to push components over a 1000 mm travel path while fine-tuning the final seating position to prevent over-travel damage.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX1000-75 the Right Cylinder?
Choose this 63 mm bore cylinder when you need 1559 N pull force at 0.5 MPa and a highly adjustable end-stop; step down to a 50 mm bore if your application only requires 825 N of pull, or up to an 80 mm bore for 2268 N. The 75 mm adjustment window is ideal for product changeovers on a line, allowing you to dial in the exact 925-1000 mm travel without adding external stopper blocks. For a fixed end position, a standard SAI cylinder would suffice, but the SAIJ variant saves setup time during mechanical commissioning.
When replacing an ISO 15552 cylinder, match the 63 mm bore, 1000 mm nominal stroke, PT port thread, and mounting style (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Note that the rear adjuster acts strictly as a travel stop and does not hold the load without live air; for true load-holding, consider the SAIL or BSAI series. Given the 1000 mm stroke, always support the load with an external guide rail to protect the M16x1.5 rod thread from deflection.
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 SAIJ63AX1000-75 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of pull force and 1559 N of push force. At the maximum 1.0 MPa pressure, it can deliver up to 318 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the nominal 1000 mm stroke by up to 75 mm. This creates a usable travel window of 925-1000 mm for fine-tuning the end position without needing live air to hold the load.
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