Airtac SAIJ50 Adjustable Cylinder SAIJ50AX195-20
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX195-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 195mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ50 mm
- Stroke195 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX195-20
The AirTAC SAIJ50X195-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the effective travel back by up to 20 mm. This creates a 175-195 mm usable stroke window, allowing you to dial in the exact retract end-position during commissioning without swapping out the unit or adding external stops. It delivers 982 N of push force and 825 N of pull force at 0.5 MPa.
This SKU features a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and uses PT tapered port threads (G1/4). The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. The rear adjuster acts purely as a mechanical stop to set the travel end and does not hold the load without live air pressure.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX195-20 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX195-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 195 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ50 Adjustable Cylinder SAIJ50AX195-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×195 | 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 SAIJ50 Adjustable Cylinder SAIJ50AX195-20 Is Used
End-Position Tuning
Fine-tune the 175-195 mm retract window during machine setup to perfectly strike a workpiece without machining custom spacers.
Product Changeover
Quickly adapt the cylinder's effective stroke on the fly when switching between product sizes on the same conveyor line.
Assembly & Clamping
Apply 982 N of clamping force at 0.5 MPa while using the rear screw to compensate for minor tooling height variations.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX195-20 the Right Cylinder?
Choose this 50 mm bore when your application requires around 982 N of thrust at 0.5 MPa. If you need less force, step down to the 40 mm bore which provides 628 N of push force; for heavier payloads, step up to the 63 mm bore which delivers 1559 N. The adjustable stroke is ideal for product changeovers on a line where the exact end-stop varies slightly, saving time compared to a fixed-stroke SAI cylinder.
Because this is a 195 mm stroke, an external guide rail is recommended to prevent excessive side-loading on the 20 mm rod. For load-holding without continuous air pressure, this cylinder is insufficient as the rear adjuster is only a travel stop; consider the SAIL or BSAI series instead. This unit uses PT ports, omits the magnet, and is dimensionally interchangeable per ISO 15552 with a reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, 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 SAIJ50 Adjustable Cylinder SAIJ50AX195-20 FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. At 0.7 MPa, the push force increases to 1374 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 195 mm nominal stroke by up to 20 mm, providing a usable travel window of 175-195 mm. It only sets the end position and does not lock or hold the load without live air pressure.
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