Airtac SAIJ100 Adjustable Cylinder SAIJ100BX155-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX155-30S 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 SAIJ100BX155-30S
The AirTAC SAIJ100X155-30-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 100 mm bore and a 155 mm nominal stroke, yielding a usable travel window of 125 to 155 mm. This built-in adjustability allows precise end-position tuning at commissioning without swapping the cylinder or adding external stops. The SUS304 stainless steel rod provides excellent corrosion resistance for demanding environments.
Delivering 5497 N of push force and 3927 N of pull force at 0.7 MPa, this unit handles heavy loads within its 30-800 mm/s speed range. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet (-S) directly supports AirTAC CMSE reed and DMSE electronic solid-state switches. It uses a G1/2 port and offers variable air cushions at both ends to manage impact energy.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX155-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX155-30S |
|---|---|
| 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 SAIJ100BX155-30S
| 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 SAIJ100BX155-30S Is Used
Product Changeovers
Dial in the 125-155 mm stroke window during format changes on packaging lines, allowing rapid adaptation to different carton or part sizes without mechanical rebuilds.
Press Fit Tuning
Fine-tune the exact bottoming position of a 5497 N press operation at commissioning, compensating for mechanical tolerances directly via the rear stopper screw.
Variable End Stops
Implement flexible retract endpoints on heavy-duty material handling equipment where the exact resting position of the 100 mm bore actuator must be adjusted on the fly.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX155-30S the Right Cylinder?
Select this 100 mm bore cylinder when an application requires substantial thrust—such as 5497 N at 0.7 MPa—combined with variable end-stop positioning. If your setup needs less force, stepping down to an 80 mm bore yields 3518 N at 0.7 MPa, whereas moving up to a 125 mm bore provides 8590 N. The adjustable 125-155 mm travel window is ideal for product-size changeovers on a line, replacing the need for a fixed-stroke SAI cylinder when exact final positioning cannot be predetermined.
Because the stroke is 155 mm, an external guide is recommended to manage side loads, even though the 25 mm rod diameter provides substantial structural support. The rear adjuster acts purely as a travel stop and does not hold the load without live air; for true load-holding without pneumatic pressure, consider an AirTAC SAIL or BSAI cylinder. This SAIJ model accepts PT tapered port threads and utilizes the standard SAIJ mounting subset: 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 SAIJ100BX155-30S FAQ
At 0.7 MPa operating pressure, this 100 mm bore cylinder provides 5497 N of push force and 3927 N of pull force. At the maximum 1.0 MPa pressure, it achieves a maximum push force of 801 kgf.
The rear adjuster screw allows you to trim the effective stroke by up to 30 mm from the 155 mm nominal length, creating a usable travel window of 125 to 155 mm. The adjuster functions as a mechanical stop and does not lock the load without continuous air pressure.
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