Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-40 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 SAIJ100BX700-40
The AirTAC SAIJ100X700-40 is a double-acting ISO 15552 profile cylinder featuring a built-in rear stroke adjuster. It provides a nominal 700 mm travel with a 40 mm adjustment range, yielding a usable stroke window of 660 to 700 mm. This allows precise end-position tuning during commissioning without swapping hardware. Delivering 3927 N of push force at 0.5 MPa, it is built with a SUS304 stainless steel rod for superior corrosion resistance.
This model uses a PT tapered G1/2 port and incorporates variable air cushions at both ends to decelerate heavy loads. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure. For position holding, consider the SAIL or BSAI series. Extruded aluminum barrel features sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is added later.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-40 |
|---|---|
| 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 SAIJ100BX700-40
| 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 SAIJ100BX700-40 Is Used
Machine Changeover
Dial in the exact 660-700 mm end position during product size changes without fabricating new stop blocks.
Variable End Stops
Fine-tune the retract position on a long-stroke conveyor diverter to accommodate varying package lengths.
Commissioning Tuning
Trim the stroke precisely during machine setup to synchronize multi-axis movements without replacing the cylinder.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-40 the Right Cylinder?
Choose this 100 mm bore when 80 mm (2513 N at 0.5 MPa) is insufficient but you want to avoid the bulk of a 125 mm cylinder. The adjustable stroke is ideal for product-size changeovers on a line, letting you dial back the travel by up to 40 mm instead of adding external stops. It uses the SAIJ mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Because the 700 mm stroke is long, the 25 mm rod diameter handles side loads well but an external guide is still recommended to prevent rod binding. This SKU omits a magnet (-S), so it cannot host CMSE/DMSE sensors out of the box. For load-holding without live pressure, select a SAIL or BSAI cylinder instead of relying on the adjuster.
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 SAIJ100BX700-40 FAQ
It generates 3927 N of push force and 3681 N of pull force at 0.5 MPa. The 700 mm nominal stroke combined with the 40 mm adjuster provides a usable travel window of 660 to 700 mm.
No, the rear adjuster is strictly a travel stop that sets the end position, and the air cushions only manage deceleration. Neither holds the load without live air pressure. For true load-holding, use a SAIL or BSAI cylinder.
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