Airtac SAIJ100 Adjustable Cylinder SAIJ100BX140-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX140-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 140mm 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
- Stroke140 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX140-30S
The AirTAC SAIJ100X140-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a usable travel window of 110 to 140 mm. It delivers a robust 7068 N push force at 0.9 MPa, making it well-suited for heavy-duty positioning tasks. The barrel is extruded aluminum with sensor grooves on both sides, and this configuration includes a SUS304 stainless steel rod for superior corrosion resistance.
This model uses a PT tapered port thread and comes with a magnet for position sensing. It is compatible with AirTAC CMSE reed and DMSE solid-state switches. The rear adjuster acts purely as a mechanical stop to fine-tune the end position during commissioning; it does not lock or hold the load without continuous air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX140-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX140-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 140 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 SAIJ100BX140-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×140 | 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 SAIJ100BX140-30S Is Used
Machine Setup & Changeover
Dial in the exact 110-140 mm travel window during product size changes without physically swapping the cylinder or adding external stopper blocks.
Heavy-Duty Positioning
Leverage the 7068 N push force at 0.9 MPa to move heavy jigs or tooling plates into precise final positions on automated machining centers.
Variable End-Stop Actuation
Use the rear adjuster to fine-tune the retract stroke end-position on packaging equipment, accommodating different material thicknesses on the fly.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX140-30S the Right Cylinder?
Choose this 100 mm bore when you need significantly more force than the 80 mm version (which provides 4523 N push at 0.9 MPa), but want to avoid the larger footprint of a 125 mm cylinder. The adjustable 30 mm stroke window is ideal for product changeovers on a line, allowing you to dial in the exact end-stop without swapping out the cylinder or adding external stops. For any load-holding requirements without live air pressure, consider the SAIL or BSAI series instead, as the SAIJ adjuster is not a locking mechanism.
When replacing an existing ISO 15552 cylinder, verify the 100 mm bore, 140 mm nominal stroke, 30 mm adjustment range, PT port thread, and the -S magnet requirement. The standard SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options. Although the 140 mm stroke is relatively short, the 25 mm rod and M20x1.5 rod thread provide excellent rigidity, though external guides are always recommended for heavy lateral loads.
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 SAIJ100BX140-30S FAQ
At an operating pressure of 0.9 MPa, this 100 mm bore cylinder generates a push force of 7068 N and a pull force of 5497 N. At 0.5 MPa, the push force is 3927 N.
The rear adjuster screw allows you to shorten the effective stroke by up to 30 mm from the 140 mm nominal length, providing a usable travel window of 110 to 140 mm. This allows for fine-tuning the end position at commissioning without changing the cylinder.
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