Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-75S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 240mm 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
- Stroke240 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-75S
The AirTAC SAIJ100X240-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end position without swapping out the unit. It provides a usable travel window of 165 to 240 mm, letting you dial back the nominal stroke by up to 75 mm during commissioning or product changeovers. In this configuration, the cylinder delivers a robust 7068 N of push force at 0.9 MPa.
This specific SKU is built with a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for position sensing using CMSE reed or DMSE electronic solid-state switches. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting. It features PT tapered ports sized at G1/2 and relies on adjustable air cushions at both ends to decelerate the load smoothly.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-75S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 240 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 SAIJ100BX240-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×240 | 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 SAIJ100BX240-75S Is Used
Machine Setup and Changeover
Dial in the exact end-position during line changeovers by adjusting the rear stopper up to 75 mm, avoiding the need to physically swap cylinders or add external shims.
Variable Product Sorting
Adapt to different package sizes on a conveyor by fine-tuning the 165-240 mm stroke window on the fly, ensuring the diverter meets each specific product profile accurately.
Heavy Payload Positioning
Leverage the 7068 N push force at 0.9 MPa to move heavy actuators or fixtures into place, using the adjustable end-stop to guarantee precise placement without overtravel.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-75S the Right Cylinder?
Choose this 100 mm bore cylinder when your application requires substantial force—stepping down to an 80 mm bore yields 4523 N of push force at 0.9 MPa, while this 100 mm unit provides 7068 N for heavier payloads. An adjustable stroke is ideal for machinery that requires variable end-stops or frequent product-size changes, whereas a fixed-stroke SAI cylinder is sufficient for repetitive single-depth tasks. Remember that the rear adjuster is a travel stop, not a lock; this SAIJ model will not hold a load without continuous air pressure. For load-holding requirements, consider an external pilot-operated check valve or the SAIL locking cylinder.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 240 mm nominal stroke, 75 mm adjustment range, G1/2 PT ports, and the -S magnet option. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the total travel can reach 240 mm, ensure adequate side-load support by using an external guide rail to protect the 25 mm diameter rod and M20x1.5 rod thread from excessive deflection.
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 SAIJ100BX240-75S 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 3681 N. It can deliver a maximum push force of 801 kgf at 1.0 MPa.
The rear adjusting screw acts as an external stopper that lets you shorten the effective stroke from the nominal 240 mm down to a minimum of 165 mm. This provides a 75 mm adjustable travel window for fine-tuning the retract end position during commissioning, though it does not lock the load without live air pressure.
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