Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 65mm 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
- Stroke65 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-50S
The AirTAC SAIJ100X65-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 3927N of push force at 0.5MPa. Its 65mm nominal stroke can be dialed back by up to 50mm, providing an exact 15-65mm usable travel window. This built-in adjustability allows you to fine-tune the retract end position during commissioning without adding external stops.
This unit features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE and DMSE sensors. The extruded aluminum barrel includes sensor grooves on both sides, and the PT G1/2 port ensures high flow for the 100mm bore. The rear adjusting screw acts purely as a travel stop and does not hold the load without live air.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 65 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 SAIJ100BX65-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×65 | 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 SAIJ100BX65-50S Is Used
Machine Changeover
Dial in the 15-65mm travel window during product size transitions to set new retract positions without replacing hardware.
End-Stop Calibration
Fine-tune the final retract position at commissioning using the rear screw, ensuring precise mechanical alignment.
Heavy Clamping
Leverage the 3927N push force at 0.5MPa to secure heavy workpieces while adjusting the clamping depth on the fly.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-50S the Right Cylinder?
Choose this 100mm bore when you need heavy thrust (3927N push at 0.5MPa) that a 80mm bore cannot provide (2513N), or step down if 1767N from a 50mm bore is sufficient. An adjustable stroke is ideal for machine setups requiring variable end-stops or frequent product-size changeovers, avoiding the need to swap out a fixed-stroke SAI cylinder. For a true ISO 15552 replacement match, verify the 65mm stroke, 50mm adjustment, PT G1/2 port, and mounting style (Basic, FA, LB, TC, FTC, TCM1, or TCM2).
Because the stroke is under 300mm, side-load stress is minimized, though the robust 25mm rod still handles standard loads well. Remember that the rear adjuster is a stop, not a lock; for load-holding without live air pressure, consider an AirTAC SAIL or BSAI cylinder.
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 SAIJ100BX65-50S FAQ
The rear adjuster lets you shorten the 65mm nominal stroke by up to 50mm, creating a 15-65mm usable travel window. It acts as a mechanical stop to set the end position and does not lock the load without continuous air pressure.
At 0.5MPa it provides 3927N of push force and 3681N of pull force. At 0.7MPa the push force increases to 5497N.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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