Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-100
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-100 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 SAIJ100AX155-100
The AirTAC SAIJ100X155-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 155 mm stroke with an impressive 100 mm adjustment range, giving you a usable travel window between 55 and 155 mm. Delivering 5497 N of push force at 0.7 MPa, it handles heavy actuation tasks while allowing precise end-position tuning at commissioning without swapping out the unit.
This variant uses a SUS420J2 stainless steel rod (option A) for better corrosion resistance and PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for adding CMSE reed or DMSE electronic switches. Remember that the rear adjuster acts purely as a travel stop to set deceleration, not as a lock; for load-holding without live air, look to the SAIL or BSAI series.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-100 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-100 |
|---|---|
| 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 SAIJ100AX155-100
| 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 SAIJ100AX155-100 Is Used
Variable End-Stop Setup
Dial in the exact retraction point between 55 and 155 mm during machine commissioning to accommodate new fixture lengths without adding external stopper blocks.
Product Size Changeover
Quickly adjust the travel distance on packaging lines that handle varying package dimensions, utilizing the full 100 mm trim range to switch between product profiles.
Heavy-Duty Positioning
Leverage the 5497 N push force at 0.7 MPa to move heavy jigs into place, relying on the rear stopper to fine-tune the final resting position precisely.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-100 the Right Cylinder?
Choose this 100 mm bore when an 80 mm bore (providing 3518 N push at 0.5 MPa) is insufficient, but you want to avoid stepping up to a 125 mm cylinder. The massive 100 mm adjustment window is ideal for machines processing multiple product sizes, letting you dial back the stroke from 155 mm down to 55 mm during changeovers rather than installing external stops or a fixed-stroke SAI cylinder. To match this ISO 15552 replacement exactly, specify bore 100, stroke 155, 100 mm adjustment, PT ports, and no magnet.
Because the stroke is 155 mm, the 25 mm piston rod and M20x1.5 rod thread handle side loads well, but any long unsupported travel still requires an external guide to prevent binding. The mounting set is limited to 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 SAIJ100AX155-100 FAQ
At 0.7 MPa operating pressure, this 100 mm bore cylinder provides 5497 N of push force and 3681 N of pull force. At 0.5 MPa, it delivers 3927 N push and 3681 N pull.
The rear adjuster screw acts as a mechanical stop that lets you trim the effective travel back by up to 100 mm from the 155 mm nominal stroke, creating a usable 55 to 155 mm window. It sets the travel end and deceleration point but does not lock or hold the load without live air pressure.
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