Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-30S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 190mm 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
- Stroke190 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-30S
The AirTAC SAIJ63X190-30-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 160-190 mm usable travel window, allowing you to dial back the nominal 190 mm stroke by up to 30 mm during commissioning without adding external stops. It delivers a robust 2182 N push force at 0.7 MPa, making it suitable for moderate-force industrial motion tasks.
This variant includes a piston magnet for position sensing via AirTAC CMSE reed or DMSE electronic switches. It uses a SUS420J2 stainless steel rod for enhanced corrosion resistance and features PT tapered port threading. The extruded aluminum barrel includes sensor grooves on both sides, and the adjustable stopper acts purely as a travel end-limit, not a load-holding lock.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-30S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 190 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 SAIJ63AX190-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×190 | 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 SAIJ63AX190-30S Is Used
Machine Changeover
Fine-tune the 160-190 mm travel window on the fly to accommodate slightly different product lengths without changing the cylinder.
End-Stop Calibration
Dial in the exact retract position during initial setup, absorbing mechanical tolerances directly at the rear adjuster instead of shimming.
Variable Positioning
Set a precise lower-end stop for pressing or holding operations where the nominal stroke needs a 30 mm safety margin.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-30S the Right Cylinder?
Select this 63 mm bore model when a 50 mm bore (982 N push at 0.5 MPa) lacks the thrust for your tooling, but an 80 mm bore (2513 N push at 0.5 MPa) is physically oversized. The 30 mm adjustment range is ideal for product changeovers where the precise end-of-stroke position shifts by a few centimeters, saving you from swapping out a fixed-stroke SAI cylinder.
Because the 190 mm stroke exceeds the 300 mm threshold where side-loading becomes critical, standard guidance applies: ensure external linear guides carry the load. Remember that the rear adjuster only sets the travel end-point; it does not hold the load without live air pressure. For true fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder. This SAIJ model uses the reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and 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 SAIJ63AX190-30S FAQ
At 0.7 MPa operating pressure, this 63 mm bore cylinder generates 2182 N of push force and 1402 N of pull force. It can achieve a maximum of 318 kgf at 1.0 MPa.
The rear adjuster screw lets you shorten the effective stroke from the nominal 190 mm down to 160 mm. This creates a 30 mm tuning window for the retract end-position, but it functions only as a mechanical stop and does not lock the load without continuous air pressure.
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