Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-40S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 700mm 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
- Stroke700 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-40S
The AirTAC SAIJ100X700-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the end-of-travel position. It provides a usable travel window of 660 to 700 mm, letting you dial back the nominal 700 mm stroke by up to 40 mm during commissioning. Delivering a robust 5497 N push force at 0.7 MPa, it is built to handle heavy loads with precision.
This variant features a SUS304 stainless steel rod (code B) for superior corrosion resistance and includes a magnet (-S) for use with AirTAC CMSE reed and DMSE solid-state sensors. The extruded aluminum barrel includes sensor grooves on both sides, and the PT tapered port threads ensure a reliable pneumatic seal.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 700 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 SAIJ100BX700-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×700 | 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 SAIJ100BX700-40S Is Used
Product Changeover
Dial in the exact 660-700 mm end position for varying product lengths on a packaging line without changing the cylinder hardware.
Machine Commissioning
Fine-tune the final retract position during setup to align heavy actuators perfectly, using the rear stopper instead of external shims.
Variable End Stops
Adjust the travel limit on the fly for sorting or diverting applications where the required stroke distance varies by batch.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-40S the Right Cylinder?
Choose this 100 mm bore cylinder when an 80 mm bore (providing 3518 N at 0.7 MPa) is insufficient for your load, but a 125 mm bore (8590 N) would be excessive overkill. The adjustable stroke is ideal for machine setups requiring variable end-stops or product-size changeovers, avoiding the need to physically swap cylinders or bolt on external stops. Because the 700 mm stroke is substantial, an external guide is recommended to prevent rod side-loading and premature wear.
To replace an ISO 15552 cylinder, match the 100 mm bore, 700 mm stroke, 40 mm adjustment, PT port threads, and the -S magnet. Remember that the rear adjuster acts only as a travel stop, not a lock; the SAIJ cannot hold a load without live air. For true fail-safe load holding, consider the AirTAC SAIL or BSAI series instead. The SAIJ mounting set includes 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 SAIJ100BX700-40S FAQ
At an operating pressure of 0.7 MPa, this 100 mm bore cylinder generates a push force of 5497 N and a pull force of 3681 N. It can reach a maximum push force of 7068 N at 0.9 MPa.
The rear adjuster screw allows you to shorten the effective stroke by up to 40 mm, providing a usable travel window of 660 to 700 mm. This stopper only decelerates or sets the travel end and does not lock the load without live air pressure.
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