Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-75
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 230mm 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
- Stroke230 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-75
The AirTAC SAIJ63X230-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 155 to 230 mm, allowing you to dial back the nominal stroke by up to 75 mm during commissioning or product changeovers without adding external stops. Delivering a push force of 1559 N at 0.5 MPa, it fits medium-force applications perfectly.
This unit is built with a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and uses PT tapered ports. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. The rear adjuster acts purely as a mechanical stop to set the end position; it does not lock or hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-75 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 230 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 SAIJ63AX230-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×230 | 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 SAIJ63AX230-75 Is Used
Product Changeovers
Dial in the exact end position for new part sizes using the 75 mm rear adjustment screw, eliminating the need to physically swap cylinders between production runs.
Machine Setup Tuning
Fine-tune the 155 to 230 mm travel window during commissioning to perfectly time the stroke without machining custom external stoppers.
Variable End Stops
Adapt clamping or ejection positions on the fly for mixed-model lines, relying on the 1559 N push force at 0.5 MPa to handle the work.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-75 the Right Cylinder?
Choose this 63 mm bore when you need 1559 N of push force at 0.5 MPa, stepping up from the 50 mm bore that yields 982 N. The 75 mm adjustment range is ideal for machines running multiple product sizes, offering far more on-the-fly flexibility than a fixed-stroke SAI cylinder. If your process requires holding a load during an air-loss event, select the SAIL or BSAI series instead, as the SAIJ adjuster is only a travel stop.
For ISO 15552 replacement matching, confirm the 63 mm bore, 230 mm stroke, 75 mm adjustment, G3/8 PT ports, and the required mounting accessory from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the 230 mm stroke is moderately long, ensure external guides support any heavy side loads to prevent rod binding.
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 SAIJ63AX230-75 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 0.7 MPa, the push force increases to 2182 N.
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from 230 mm down to as little as 155 mm. It sets the end position but does not lock the load without continuous air pressure.
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