Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-30S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 140mm 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
- Stroke140 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-30S
The AirTAC SAIJ63X140-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down from 140 mm to a 110-140 mm window. It delivers a robust 1559 N pull force at 0.5 MPa, making it well-suited for mid-range actuation tasks. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed and DMSE electronic switches.
This adjustable variant omits the FB, CA, CB, and CR mounts, offering a focused set of ISO 15552 interfaces including Basic, FA, LB, TC, FTC, TCM1, and TCM2. The piston rod is constructed from SUS420J2 stainless steel for improved corrosion resistance, and the PT tapered ports ensure a reliable pneumatic connection.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-30S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 140 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 SAIJ63AX140-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×140 | 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 SAIJ63AX140-30S Is Used
Machine Changeover
Quickly reconfigure the 110-140 mm stroke window when switching product sizes on a packaging line, using the rear screw to set new end positions without changing cylinders.
End-Position Tuning
Fine-tune the exact retraction point during commissioning to perfect part ejection or clamping, avoiding the need for external stopper blocks.
Assembly Actuation
Leverage the 1559 N pull force at 0.5 MPa to reliably pull components into place while using the adjuster to compensate for mechanical tolerances.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-30S the Right Cylinder?
Choose this 63 mm bore when a 50 mm bore (825 N pull at 0.5 MPa) lacks the necessary force, but an 80 mm bore (2268 N pull) would be excessive overkill. The 30 mm adjustment range is ideal for product changeovers, allowing you to dial in the exact end-stop without swapping the cylinder or adding external stops. For strokes of 140 mm, side-load is minimal, but always guide the load if pushing off-center.
When specifying a replacement, match the 63 mm bore, 140 mm nominal stroke, 30 mm adjustment, PT G3/8 port, and the -S magnet option. Remember that the rear adjuster is a travel stop, not a lock; if you need to hold the load securely without live air pressure, consider the SAIL or BSAI series instead.
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 SAIJ63AX140-30S FAQ
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke from 140 mm down to 110 mm. This provides a 30 mm tuning window to dial in the exact end position during setup or product changeover.
At 0.5 MPa operating pressure, it provides 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
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