Airtac SAIJ100 Adjustable Cylinder SAIJ100AX150-75
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX150-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 150mm 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
- Stroke150 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX150-75
The AirTAC SAIJ100X150-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 150 mm stroke that can be mechanically dialed back by up to 75 mm, yielding a precise usable travel window of 75 to 150 mm. This allows you to fine-tune the retract end-position at commissioning without swapping the cylinder or adding external stops.
Delivering 7068 N of push force at 0.9 MPa, this 100 mm bore unit is built with a SUS420J2 stainless steel rod for enhanced corrosion resistance. It features PT tapered port threads (G1/2), variable air cushions at both ends, and extruded aluminum barrel sensor grooves on both sides. The rear adjuster acts purely as a mechanical stop to set the travel end and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX150-75 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX150-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 150 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 SAIJ100AX150-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×150 | 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 SAIJ100AX150-75 Is Used
Changeover Calibration
Dial in the 75-150 mm retract window during product line changeovers to set exact end-stops without machining new hard stops.
Variable Positioning
Trim the stroke precisely during machine commissioning to perfect the final resting position of a 7068 N push assembly.
Assembly Stroke Tuning
Adjust the effective travel on the fly to accommodate varying material thicknesses or stack heights on automated assembly lines.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX150-75 the Right Cylinder?
Choose this adjustable model when your machine setup requires variable end-stops or frequent product-size changeovers, rather than relying on a fixed-stroke SAI cylinder. If you need less force, stepping down to an 80 mm bore yields 4523 N at 0.9 MPa; stepping up to 125 mm provides 11045 N. Because the 150 mm stroke is under 300 mm, side-load risks are moderate, but the 25 mm rod diameter and M20x1.5 rod thread handle standard loads effectively.
When specifying an ISO 15552 replacement, match the 100 mm bore, 150 mm nominal stroke, 75 mm adjustment range, PT port threads, and SUS420J2 rod material. Note that the SAIJ mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR brackets. Since no magnet is specified, position sensing via CMSE or DMSE switches is not available on this base configuration.
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 SAIJ100AX150-75 FAQ
At a 0.9 MPa operating pressure, the 100 mm bore generates 7068 N of push force and 3681 N of pull force. It can deliver a maximum of 801 kgf at 1.0 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the 150 mm nominal stroke by up to 75 mm, creating a 75 to 150 mm usable travel window. It only sets the travel end and does not lock or hold the load without continuous air pressure.
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