Airtac SAIJ100 Adjustable Cylinder SAIJ100AX165-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX165-20S 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 SAIJ100AX165-20S
The AirTAC SAIJ100X165-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 3927N of push force at 0.5 MPa and features a 145-165mm usable travel window, letting you trim the effective stroke by up to 20mm. The SUS420J2 stainless steel rod (code A) provides excellent corrosion resistance, and the integrated magnet (-S) supports position sensing.
This model uses a G1/2 port and achieves speeds of 30-800mm/s. The rear screw acts purely as a mechanical stop to fine-tune the end position during commissioning without requiring external stops; it is not a locking device and cannot hold loads without continuous air pressure. For load-holding requirements, consider the SAIL or BSAI variants.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX165-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX165-20S |
|---|---|
| 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 SAIJ100AX165-20S
| 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 SAIJ100AX165-20S Is Used
Product Size Changeovers
Dial in the 145-165mm travel window instantly on the factory floor when switching between product sizes, avoiding the downtime of physically replacing cylinders.
End-Position Calibration
Fine-tune the retract end-stop during machine commissioning to achieve exact positioning without fabricating or bolting on external mechanical stops.
High-Force Positioning
Leverage the 3927N push force at 0.5MPa to move heavy pallets or fixtures, relying on the rear adjuster to set the precise drop-off point.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX165-20S the Right Cylinder?
Select this 100mm bore cylinder when an 80mm bore (providing 2513N push at 0.5MPa) is insufficient for your load, but you want to avoid stepping up to a 125mm unit. The adjustable 145-165mm travel window is perfect for machinery requiring precise end-position tuning during product changeovers, eliminating the need to physically swap out a fixed-stroke SAI cylinder. To match this exact configuration for an ISO 15552 replacement, specify the 100mm bore, 165mm stroke, 20mm adjustment, PT tapered port thread, and the -S magnet.
Because the 165mm stroke is relatively short for this bore size, side-load stress on the M20x1.5 rod thread is manageable, though external guides should still be used to maximize seal life. Mounting options include 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 SAIJ100 Adjustable Cylinder SAIJ100AX165-20S FAQ
At 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At 0.7 MPa, the push force increases to 5497N.
The rear adjuster screw allows you to shorten the nominal 165mm stroke by up to 20mm, creating a 145-165mm usable travel window. It functions as a mechanical stop for end-position tuning and requires live air to hold the load; it is not a lock.
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