Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX25-10S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX25-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 25mm 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
- Stroke25 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX25-10S
The AirTAC SAIJ63X25-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 1559 N push force at 0.5 MPa, utilizing a 20 mm rod and G3/8 port. The built-in magnet enables position detection with CMSE reed or DMSE electronic sensors.
With a 25 mm nominal stroke and a 10 mm adjustment range, this unit provides a usable travel window of 15 to 25 mm. This allows precise end-position tuning at commissioning without adding external stops. The extruded aluminum barrel features sensor grooves on both sides, and the SUS420J2 stainless steel rod offers enhanced corrosion resistance for demanding environments.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX25-10S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX25-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 25 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 SAIJ63AX25-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×25 | 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 SAIJ63AX25-10S Is Used
Precision End-Stop Tuning
Dial in the exact 15 to 25 mm travel distance during machine commissioning to accommodate varying product tolerances without swapping hardware.
Product Size Changeover
Quickly adjust the rear stopper on automated lines when switching between different part sizes, minimizing downtime and avoiding external stop blocks.
Short-Stroke Clamping
Utilize the 1559 N push force at 0.5 MPa for robust clamping tasks where the exact final position needs micro-adjustments on the fly.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX25-10S the Right Cylinder?
Choose this 63 mm bore when you need higher thrust than a 50 mm cylinder (which provides 982 N push at 0.5 MPa) but want to avoid the larger footprint of an 80 mm option. The adjustable stroke is ideal for short-stroke applications requiring exact end-stop tuning during machine setup or product changeover, unlike a fixed-stroke SAI cylinder.
To match this ISO 15552 dimensionally interchangeable cylinder, specify a 63 mm bore, 25 mm stroke, 10 mm adjustment, PT tapered port threads, and the -S magnet. Remember that the rear adjuster acts only as a travel stop; it does not hold the load without live air. For load-holding requirements, consider an external rod lock or the SAIL 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 SAIJ63AX25-10S 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 allows you to shorten the effective stroke by up to 10 mm. This creates a usable travel window of 15 to 25 mm from the 25 mm nominal stroke, enabling fine-tuning of the end position without external stops.
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