Airtac SAIJ100 Adjustable Cylinder SAIJ100AX175-20
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX175-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 175mm 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
- Stroke175 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX175-20
The AirTAC SAIJ100X175-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 155 to 175 mm. It delivers a robust 3927 N of push force at 0.5 MPa, making it well suited for heavy-duty positioning tasks. The extruded aluminum barrel features sensor grooves on both sides for straightforward detection integration.
This specific configuration utilizes a SUS420J2 stainless steel rod (material code A) for enhanced durability against moisture and PT tapered port threads. The rear adjustment screw acts purely as a mechanical stop to fine-tune the retract end position during commissioning. It does not lock the load without live air pressure, so applications requiring true load-holding should utilize an external rod lock or a SAIL pneumatic lock cylinder.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX175-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX175-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 175 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 SAIJ100AX175-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×175 | 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 SAIJ100AX175-20 Is Used
Product Changeovers
Dial in the 155-175 mm travel window during line format changes to accommodate different package sizes without replacing the cylinder.
Heavy Pressing
Leverage the 3927 N push force at 0.5 MPa for firm pressing operations, using the rear stopper to precisely set the final contact position.
Machine Setup
Fine-tune the retract end position during initial commissioning to align heavy tooling perfectly, avoiding the need for external shims.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX175-20 the Right Cylinder?
Choose this 100 mm bore when you need significantly more thrust than a 63 mm cylinder (which provides 1559 N push at 0.5 MPa) but want to avoid the larger footprint of a 125 mm unit. The 20 mm adjustment range is ideal for product changeovers, allowing you to dial in the exact end-of-stroke position without machining external stopper blocks or swapping to a fixed-length SAI cylinder. To match this ISO 15552 footprint for a direct replacement, confirm a 100 mm bore, 175 mm stroke, 20 mm adjustment, PT ports, and no magnet (-S omitted).
Because the 175 mm stroke is moderate, side-loading risks are lower than on extended units, but the 25 mm rod diameter and M20x1.5 rod thread still require external guiding if the load is heavy or off-center. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, deliberately omitting FB, CA, CB, and CR brackets. Without a magnet, this SKU cannot host CMSE reed or DMSE electronic sensors.
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 SAIJ100AX175-20 FAQ
At a 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. If you increase the pressure to 0.7 MPa, the push force rises to 5497 N.
The rear adjuster screw lets you shorten the nominal 175 mm stroke by up to 20 mm, creating a 155 to 175 mm travel window. It acts as a mechanical stop to set the end position and does not function as a lock to hold the load without air pressure.
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