Airtac SAIJ100 Adjustable Cylinder SAIJ100BX35-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX35-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 35mm 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
- Stroke35 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX35-20S
The AirTAC SAIJ100X35-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. Equipped with a SUS304 stainless steel rod and a position-sensing magnet, it delivers a robust 3927N push force at 0.5 MPa. The integrated rear stopper allows you to fine-tune the end position during commissioning without adding external stops.
This model provides a usable travel window of 15 to 35 mm, letting you dial in the exact retract distance on the fly. It features a G1/2 port and uses the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR options. The position magnet is fully compatible with AirTAC CMSE reed and DMSE solid-state sensors.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX35-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX35-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 35 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 SAIJ100BX35-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×35 | 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 SAIJ100BX35-20S Is Used
Short-Stroke Pressing
Ideal for high-force pressing tasks over a short distance, where the 15-35mm adjustable window ensures perfect contact depth on varying material thicknesses.
Machine Changeover
Quickly fine-tune the retract end-position during product size changeovers without swapping the cylinder or bolting on external mechanical stops.
Sensor-Verified Clamping
The integrated magnet works with CMSE and DMSE sensors to confirm clamp positions, while the SUS304 rod handles corrosive cooling fluids.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX35-20S the Right Cylinder?
Choose this 100mm bore when your application requires high force (3927N push at 0.5 MPa) over a short, variable distance. If you need less force, stepping down to a 63mm bore yields 1559N, but this model is ideal for heavy pressing or clamping. The adjustable 15-35mm travel window is perfect for product changeovers where the end-stop distance varies slightly.
Because the nominal stroke is 35mm, no external guide is necessary for side loads. The rear adjuster acts purely as a mechanical stop and does not hold the load without live air pressure. For true load-holding without air, select an SAIL pneumatic lock or BSAI clamp-lock cylinder. To replace an ISO 15552 unit, match the 100mm bore, 35mm stroke, 20mm adjustment, G1/2 PT port, and -S magnet.
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 SAIJ100BX35-20S FAQ
At 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At 0.7 MPa, the push force increases to 5497N.
The rear adjusting screw acts as a mechanical stop, allowing you to shorten the effective travel from 35mm down to 15mm. This creates a 15-35mm usable window for fine-tuning the end position at commissioning.
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