Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX375-10
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX375-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 375mm 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
- Stroke375 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX375-10
The AirTAC SAIJ63X375-10 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 365-375 mm usable travel window, allowing you to dial back the 375 mm nominal stroke by up to 10 mm during commissioning without adding external stops. Delivering 1559 N pull force at 0.5 MPa, it handles robust actuation tasks while maintaining a standard ISO 15552 mounting footprint.
This variant uses a SUS420J2 stainless steel rod for enhanced corrosion resistance and features PT tapered port threads with a G3/8 air connection. The extruded aluminum barrel includes sensor grooves on both sides for flexible positioning of CMSE reed or DMSE electronic switches. The rear adjuster acts strictly as a travel stop for end-position tuning and does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX375-10 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX375-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 375 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 SAIJ63AX375-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×375 | 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 SAIJ63AX375-10 Is Used
Machining Clamp Tuning
Fine-tune the 365-375 mm clamping end-stop during setup to accommodate varying workpiece lengths without changing the cylinder.
Product Diversion
Adjusts the retract position by up to 10 mm to perfectly align a diverter arm for different package widths on a packaging line.
End-Stop Calibration
Provides a precise mechanical stop for calibrating end-of-stroke positions during machine commissioning, replacing external stopper hardware.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX375-10 the Right Cylinder?
Choose this 63 mm bore unit when a 40 mm bore (providing 528 N pull at 0.5 MPa) lacks the necessary thrust, but a larger 80 mm bore (2268 N pull) would be physically oversized. The 10 mm adjustment range is ideal for applications needing minor end-position tweaks during machine setup or product changeover, avoiding the need to swap out a fixed-stroke SAI cylinder. Mounting options include the standard SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
Because the 375 mm stroke is relatively long, the 20 mm diameter rod and M16x1.5 thread can still transmit side loads, so an external guide is recommended to prevent rod binding. For applications requiring the load to be held in place without continuous air pressure, note that this cylinder's adjuster and air cushions function only as travel stops, not as locks; a SAIL or BSAI variant would be required for positive holding.
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 SAIJ63AX375-10 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
The rear adjuster screw allows you to shorten the effective stroke from 375 mm down to a minimum of 365 mm. It acts as a mechanical travel stop for end-position tuning and does not function as a lock to hold the load without live air pressure.
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