Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-10S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 240mm 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
- Stroke240 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-10S
The AirTAC SAIJ63X240-10-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 230-240 mm, letting you dial in the exact retract position during commissioning without adding external stops. In the 63 mm bore class, it delivers a 0.5 MPa push force of 1559 N and a pull force of 1402 N.
This variant includes a SUS420J2 stainless steel piston rod (option A) for improved corrosion resistance compared to standard carbon steel. The barrel extrusion incorporates sensor grooves on both sides, and because this unit has the -S magnet, it is fully compatible with AirTAC CMSE reed and DMSE electronic solid-state switches. Fluid ports are PT tapered thread type.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-10S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 240 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 SAIJ63AX240-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×240 | 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 SAIJ63AX240-10S Is Used
Position Commissioning
Dial in the exact 230-240 mm retract end-stop during machine setup to perfect stroke length without swapping cylinders.
Product Changeover
Quickly adjust the end position by up to 10 mm on automated lines when handling slightly different product sizes.
Assembly Line Actuation
Provides 1559 N of push force at 0.5 MPa for driving clamps and stops on the factory floor.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-10S the Right Cylinder?
Choose this 63 mm bore when an application requires around 1559 N of push force at 0.5 MPa. If your load is lighter, stepping down to a 50 mm bore yields 982 N, whereas moving up to an 80 mm bore provides 2513 N. The 10 mm adjustment range is ideal for fine-tuning a 240 mm stroke to meet a precise product changeover position, which is often faster than machining a fixed SAI cylinder spacer.
When ordering a replacement, verify the 63 mm bore, 240 mm stroke, 10 mm adjuster, PT G3/8 port, and the -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets, omitting the FB, CA, CB, and CR styles found on some other series. Note that the rear adjuster acts only as a travel stop; it does not hold the load without live air pressure. For true pneumatic locking, consider the SAIL or BSAI series.
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 SAIJ63AX240-10S 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 0.7 MPa, the push force increases to 2182 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the nominal 240 mm down to 230 mm. It allows fine-tuning of the end position at commissioning but does not lock the load without live air pressure.
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