Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX40-10
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX40-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 40mm 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
- Stroke40 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX40-10
The AirTAC SAIJ63X40-10 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 30-40 mm usable travel window from its 40 mm nominal stroke. It delivers a robust 1559 N pull force at 0.5 MPa, making it well-suited for high-force positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This specific SKU is configured with an SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and features PT tapered port threads. The rear adjuster acts purely as a mechanical stop to fine-tune the end position at commissioning without adding external stops; it does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX40-10 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX40-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 40 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 SAIJ63AX40-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×40 | 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 SAIJ63AX40-10 Is Used
End-Stop Tuning
Dial in the exact 30-40 mm travel distance during machine commissioning without installing external physical stops.
Product Changeover
Quickly adjust the retract position on a packaging line when handling slightly different product sizes.
High-Force Clamping
Utilize the 1559 N pull force to securely hold components in place during light machining or assembly.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX40-10 the Right Cylinder?
Select this 63 mm bore cylinder when you need the 1559 N pull force at 0.5 MPa (or up to 318 kgf at 1.0 MPa) combined with a highly compact 40 mm stroke that can be dialed back by 10 mm. If your application requires less force, stepping down to a 50 mm bore yields 825 N of pull force at 0.5 MPa. The adjustable stroke is ideal for product changeovers where the exact end-of-travel position varies slightly, eliminating the need to physically swap a fixed-stroke SAI cylinder.
Because the stroke is under 300 mm, side-loading stress is minimal, though the 20 mm rod and M16x1.5 thread provide excellent rigidity. Remember that the rear adjuster is a travel stop, not a locking device; if you need true load-holding without live air, consider the SAIL or BSAI series. For ISO 15552 replacement, match the 63 mm bore, 40 mm stroke, 10 mm adjustment, PT port, and desired mounting from the SAIJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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 SAIJ63AX40-10 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of pull force and 1402 N of push force. At its maximum 1.0 MPa pressure, it can deliver up to 318 kgf.
The rear adjusting screw allows you to shorten the effective stroke by up to 10 mm, creating a 30-40 mm usable travel window. This enables fine-tuning of the end position at commissioning without replacing the cylinder.
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