Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-20S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-20S 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 SAIJ63AX190-20S
The AirTAC SAIJ63X190-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 170-190 mm usable travel window by allowing you to trim up to 20 mm off the 190 mm nominal stroke. In the 63 mm bore class, it generates 1559 N of push thrust and 1402 N of pull thrust at 0.5 MPa, making it well-suited for medium-force handling tasks.
This variant features a SUS420J2 stainless steel rod for improved corrosion resistance compared to standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides, and because this is a -S model, it includes a magnet for position detection via AirTAC CMSE reed or DMSE electronic solid-state switches. Fluid connections use PT tapered threads, and the cylinder supports a 30-800 mm/s operating speed range.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-20S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-20S |
|---|---|
| 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 SAIJ63AX190-20S
| 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 SAIJ63AX190-20S Is Used
Machine Changeover
Dial in the exact 170 to 190 mm retract position when switching between product sizes on a packaging line, avoiding mechanical rebuilds.
End-Stop Calibration
Fine-tune the final end-of-stroke position at commissioning to perfect a pressing or clamping operation without adding external stopper blocks.
Medium-Force Positioning
Leverage the 1559 N push force at 0.5 MPa to push or lift medium-weight jigs into a precise, adjustable end location.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-20S the Right Cylinder?
Select this 63 mm bore adjustable cylinder when your application requires fine-tuning the retract end-position during commissioning or product changeovers without physically swapping the cylinder or adding external stops. If you need less force, the 50 mm bore offers 982 N push at 0.5 MPa; if your load demands more, consider the 80 mm bore which provides 2513 N. For this 190 mm stroke, the M16x1.5 rod thread and 20 mm rod diameter handle moderate side loads, but any stroke of 300 mm or more on larger variants would require an external guide to prevent rod bending.
When specifying this ISO 15552 interchangeable cylinder, confirm the 190 mm nominal stroke, 20 mm adjustment range, G3/8 PT port threads, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Remember that the rear adjuster is a travel stop, not a locking device; this cylinder will not hold a load without live air pressure, so for fail-safe load holding, look to the SAIL or BSAI series instead.
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 SAIJ63AX190-20S FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 20 mm, creating a 170-190 mm travel window. It acts as a physical stop for the retract end-position, letting you fine-tune the travel without replacing the cylinder.
At 0.5 MPa operating pressure, the SAIJ63X190-20-S generates 1559 N of push force and 1402 N of pull force. At the maximum 1.0 MPa pressure, the push force reaches 318 kgf.
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