Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX105-40S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX105-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 105mm 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
- Stroke105 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX105-40S
The AirTAC SAIJ63X105-40-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 105 mm stroke with an adjustable travel window of 65 to 105 mm, allowing you to dial in the exact retract position without adding external stops. Delivering 1559 N of push thrust at 0.5 MPa, it fits perfectly into mid-range force applications.
This specific SKU is configured with a SUS420J2 stainless steel rod for enhanced corrosion resistance and includes a magnet (-S) for position sensing with AirTAC CMSE reed or DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides, and the rear adjuster functions strictly as a travel stop for end-position tuning, not a load-holding lock.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX105-40S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX105-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 105 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 SAIJ63AX105-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×105 | 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 SAIJ63AX105-40S Is Used
Variable End-Stop Machining
Dial in the exact clamping depth between 65 and 105 mm during machine setup, allowing quick changes for different material thicknesses without swapping cylinders.
Product Diversion Changeover
Adjust the retract stroke on the fly to handle varying package sizes on a conveyor line, tuning the stop position precisely at commissioning.
Sensor Calibration Rigs
Leverage the -S magnet with DMSE electronic sensors to verify positions across the adjusted travel window, fine-tuning the end point without external mechanical stops.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX105-40S the Right Cylinder?
Choose this 63 mm bore when a 50 mm bore (982 N push at 0.5 MPa) is too weak or an 80 mm bore (2513 N push at 0.5 MPa) is too bulky for your machine. The 40 mm adjustment range is ideal for product changeovers where the required retract distance varies within that 65 to 105 mm window. Because the stroke is 105 mm, side-load is minimal, but always ensure the M16x1.5 rod thread is properly aligned to prevent premature seal wear.
For an exact ISO 15552 replacement, match the 63 mm bore, 105 mm stroke, PT tapered port threads, and the -S magnet requirement. If your process requires the cylinder to hold a load without live air pressure, note that this rear adjuster only acts as a stop; you should instead select an AirTAC SAIL or BSAI series cylinder with an integrated lock.
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 SAIJ63AX105-40S 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 the maximum 1.0 MPa pressure, it delivers 318 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke from 105 mm down to 65 mm. This creates a 65-105 mm travel window for fine-tuning end positions at commissioning, but it does not lock or hold the load without air pressure.
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