Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 155mm 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
- Stroke155 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-30S
The AirTAC SAIJ100X155-30-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 125 to 155 mm, allowing you to dial back the nominal 155 mm stroke by up to 30 mm during commissioning. Operating at 0.7 MPa, it delivers 5497 N of push force and 3681 N of pull force.
This variant includes a magnet for CMSE reed and DMSE electronic sensors, utilizing the dual-side sensor grooves machined into the extruded aluminum barrel. It features a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and uses PT tapered port threads. The adjuster acts purely as a travel stop for end-position tuning and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 155 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 SAIJ100AX155-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×155 | 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 SAIJ100AX155-30S Is Used
Machine Changeover
Dial in the exact retract distance within the 125-155 mm window when swapping product fixtures of varying sizes on a packaging line.
End-Position Tuning
Fine-tune the final resting position during commissioning without swapping the entire cylinder or machining external stop blocks.
Variable Assembly Stops
Set precise end-stops for multi-model assembly processes where the effective stroke needs periodic adjustment based on the component being handled.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-30S the Right Cylinder?
Choose this 100 mm bore when an 80 mm bore (3518 N push at 0.7 MPa) is insufficient or a 125 mm bore (8590 N push) is oversized. An adjustable stroke is preferred over a fixed SAI when you need to fine-tune the retract end position on the fly or accommodate product size changeovers without adding external stops. For exact ISO 15552 replacement matching, confirm the 155 mm stroke, 30 mm adjustment, PT G1/2 port, and the -S magnet. Because the stroke is under 300 mm, side-load concerns are minimal, but the 25 mm rod still handles standard loads well. Note that the rear adjuster is a stop, not a lock; for load-holding without live pressure, consider the SAIL or BSAI series.
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 SAIJ100AX155-30S FAQ
The rear adjusting screw acts as a mechanical stop, allowing you to shorten the effective stroke from 155 mm down to as little as 125 mm, giving a 30 mm tuning window without changing the cylinder.
At 0.7 MPa operating pressure, this 100 mm bore cylinder provides 5497 N of push force and 3681 N of pull force. It can reach a maximum push force of 7068 N at 0.9 MPa.
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