Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX120-10
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX120-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 120mm 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
- Stroke120 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX120-10
The AirTAC SAIJ63X120-10 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 110-120 mm usable travel window, allowing you to dial back the nominal 120 mm stroke by up to 10 mm during commissioning. Delivering 1559 N of push force at 0.5 MPa, it fits perfectly into mid-range pneumatic setups requiring precise end-position tuning.
This variant features an SUS420J2 stainless steel rod (material code A) for enhanced durability against moisture and minor surface wear. The extruded aluminum barrel includes sensor grooves on both sides, and fluid connections use PT tapered ports sized at G3/8. You can fine-tune the retract end position without swapping out the entire cylinder or adding external stops.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX120-10 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX120-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 120 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 SAIJ63AX120-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×120 | 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 SAIJ63AX120-10 Is Used
End-Position Tuning
Dial in the exact retract distance within a 110-120 mm window to perfectly seat components without reprogramming machine logic.
Machine Changeover
Quickly adjust the rear stopper screw by up to 10 mm when switching a production line to a slightly different product size.
Assembly Calibration
Fine-tune the 1559 N clamping or pressing stroke during setup to prevent crushing delicate workpieces.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX120-10 the Right Cylinder?
Choose this 63 mm bore when a 50 mm bore (offering 982 N push at 0.5 MPa) lacks the necessary thrust, but an 80 mm bore (2513 N push at 0.5 MPa) would be physically oversized. The 10 mm adjustment range is ideal for applications needing slight end-position tweaks rather than massive travel changes. For fixed-position tasks without any trim requirement, a standard SAI cylinder is simpler. To match this cylinder for an ISO 15552 replacement, verify the 120 mm stroke, 10 mm adjust, G3/8 PT ports, and your required mounting style from the available Basic, FA, LB, TC, FTC, TCM1, and TCM2 set. Note that FB, CA, CB, and CR mounts are omitted from the SAIJ 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 SAIJ63AX120-10 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. It can reach a maximum push force of 2805 N at 0.7 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke from 120 mm down to 110 mm. It only sets the travel end and does not lock the load without live air pressure.
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