Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-20S 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 SAIJ100BX700-20S
The AirTAC SAIJ100X700-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling you to fine-tune the end position during commissioning. Based on a 700 mm nominal stroke and a 20 mm adjustment screw, it provides a usable travel window of 680-700 mm without requiring external stops. It delivers 3927 N of push force at 0.5 MPa, scaling up to 7068 N at 0.9 MPa.
This variant features a SUS304 stainless steel rod (option B) for superior corrosion resistance and uses PT tapered port threads with a G1/2 connection. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet works seamlessly with AirTAC CMSE reed and DMSE electronic solid-state switches for precise position feedback.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-20S |
|---|---|
| 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 SAIJ100BX700-20S
| 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 SAIJ100BX700-20S Is Used
Machine Changeover
Dial in the 680-700 mm travel window during product size transitions on a packaging line without swapping out the entire cylinder assembly.
End-Position Tuning
Fine-tune the retract stroke exactly to the final 20 mm during machine commissioning to perfect pressing or lifting alignment.
Variable End Stops
Adjust the stroke on the fly for diverter gates or indexing mechanisms that require slight positional shifts for different package lengths.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-20S the Right Cylinder?
Select this 100 mm bore when an application requires substantial thrust—stepping down to an 80 mm bore yields 2513 N at 0.5 MPa, while moving up to 125 mm provides 6136 N. The adjustable stroke is ideal for machine changeovers where product sizes vary, replacing fixed-stroke SAI cylinders to allow on-the-fly end-stop tuning. For any stroke of 700 mm, the 25 mm rod diameter handles higher side loads, but an external guide is still recommended to prevent rod binding.
To match this ISO 15552 dimensionally interchangeable cylinder, specify: 100 mm bore, 700 mm stroke, 20 mm adjustment range, PT G1/2 ports, Basic/FA/LB/TC/FTC/TCM1/TCM2 mountings, and a -S magnet. Remember that the rear adjuster acts only as a travel stop; it cannot hold a load without live air. For true load-holding, consider the SAIL or BSAI series.
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 SAIJ100BX700-20S FAQ
At 0.5 MPa, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At the maximum operating pressure of 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw allows you to shorten the effective travel from the 700 mm nominal stroke down to 680 mm, giving a 680-700 mm usable window. It acts as a physical stop to tune the end position, but it is not a lock and cannot hold the load without continuous air pressure.
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