Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-50S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-50S 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 SAIJ63AX190-50S
The AirTAC SAIJ63X190-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 140-190 mm usable travel window, allowing you to dial back the nominal 190 mm stroke by up to 50 mm during commissioning. Delivering 1559 N of push force at 0.5 MPa, it handles mid-range actuation with precision.
This variant features a SUS420J2 stainless steel rod (code A) for improved corrosion resistance and includes a magnet (-S) for position sensing. The extruded aluminum barrel incorporates sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic solid-state switches. Pneumatic connections use a PT tapered G3/8 port.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-50S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-50S |
|---|---|
| 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 SAIJ63AX190-50S
| 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 SAIJ63AX190-50S Is Used
Product Changeovers
Quickly reconfigure the 140-190 mm travel window on packaging lines to accommodate different carton sizes without changing hardware.
End-Position Tuning
Fine-tune the retract end-stop during machine commissioning to dial in exact clamping or pressing positions on the fly.
Variable End Stops
Use the 50 mm adjustment range to create flexible positioning profiles in automated assembly equipment.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-50S the Right Cylinder?
Choose this 63 mm bore when a 50 mm bore falls short on power, as the latter only provides 982 N of push force at 0.5 MPa. The 50 mm adjustment range is ideal for product-size changeovers, letting you set variable end-stops without swapping the cylinder or adding external stops. For drop-in replacements, match the 63 mm bore, 190 mm stroke, 50 mm adjustment, PT G3/8 port, and -S magnet.
Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. The M16x1.5 rod thread handles side loads well, but because the 190 mm stroke approaches the mid-range, ensure adequate external guiding for unsupported loads. Note that the rear adjuster acts as a travel stop, not a lock; the cylinder will not hold a load without live air, so consider a SAIL or BSAI cylinder if load-holding is required.
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 SAIJ63AX190-50S FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder produces 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 acts as an external stopper that lets you shorten the effective stroke from the nominal 190 mm down to 140 mm. It sets the travel end but does not lock the load without continuous air pressure.
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