Airtac SAIJ100 Adjustable Cylinder SAIJ100AX165-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX165-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 165mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke165 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX165-50S
The AirTAC SAIJ100X165-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 115-165 mm. Delivering 3927 N of push force at 0.5 MPa, it handles heavy loads with precision. The extruded aluminum barrel includes sensor grooves on both sides, and this specific SKU features a SUS420J2 stainless steel rod and a magnet for CMSE and DMSE switches.
The integrated rear adjusting screw acts as a mechanical stop, allowing you to fine-tune the retract end position at commissioning without adding external stops. Remember that this adjuster and the variable air cushions decelerate the travel end but do not hold the load without live air; for position holding, consider an external rod lock or the SAIL series. It uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and features a 25 mm rod with an M20x1.5 thread.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX165-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX165-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 165 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX165-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×165 | 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 SAIJ100 Adjustable Cylinder SAIJ100AX165-50S Is Used
Machine Setup Changeover
Dial in the exact retract position within the 115-165 mm window during product changeovers without swapping hardware.
End-Position Tuning
Fine-tune the mechanical stop at commissioning to perfect the stroke end without relying on external spacers.
Heavy Load Handling
Leverage the 3927 N push force to move heavy jigs while retaining the flexibility of an adjustable end-stop.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX165-50S the Right Cylinder?
Choose this 100 mm bore when 80 mm falls short (2513 N at 0.5 MPa) but you want to avoid the larger 125 mm footprint. The 50 mm adjustment range is ideal for product-size changeovers on a line, letting you dial in the exact end-stop without swapping the cylinder. When replacing an ISO 15552 cylinder, match the 165 mm stroke, 50 mm adjust, PT tapered ports, and the -S magnet. Because the stroke is under 300 mm, side-load risks are lower, but the 25 mm rod still handles guide loads well.
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 SAIJ100 Adjustable Cylinder SAIJ100AX165-50S FAQ
The nominal stroke is 165 mm, but the rear adjuster lets you trim the travel back by up to 50 mm, creating a usable window of 115-165 mm. The adjuster acts as a stop to set the exact retract position.
At 0.5 MPa it provides 3927 N of push force and 3681 N of pull force. The -S option includes a magnet for CMSE reed and DMSE electronic sensors.
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