Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-100
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 650mm 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
- Stroke650 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-100
The AirTAC SAIJ100X650-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 650 mm travel back by up to 100 mm, creating a precise 550-650 mm usable window. It delivers a robust 3927 N of push force at 0.5 MPa, scaling to 7068 N at 0.9 MPa, making it well-suited for heavy positioning tasks.
Built with a SUS304 stainless steel rod for superior corrosion resistance, this model uses PT tapered port threads (G1/2) and operates at speeds between 30-800 mm/s. The extruded aluminum barrel includes sensor grooves on both sides, while the adjustable stopper functions purely as an end-position stop and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-100 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 650 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 SAIJ100BX650-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×650 | 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 SAIJ100BX650-100 Is Used
Machine Setup & Changeover
Dial in the exact 550-650 mm end-stop during product size changeovers without machining new stopper blocks or swapping the cylinder.
Heavy Fixture Positioning
Leverage the 7068 N push force at 0.9 MPa to move heavy machining fixtures into exact alignment before a clamping operation.
Long-Stroke Assembly Pressing
Use the long travel and fine rear adjustment to set precise pressing depths for varying component heights on an assembly line.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-100 the Right Cylinder?
Choose this 100 mm bore when the 80 mm variant's 2513 N push force at 0.5 MPa is insufficient for your application, but before stepping up to the 125 mm size which outputs 6136 N. The integrated rear adjuster is selected over a fixed-stroke SAI cylinder when you need fine end-position tuning during commissioning or product changeover without swapping out the physical cylinder.
Because the 650 mm stroke is relatively long, an external guide is recommended to prevent excessive side-loading on the 25 mm rod. For load-holding without continuous air pressure, note that this cylinder's adjuster is not a lock; you would need to specify an SAIL or BSAI variant, or use an external rod lock. This unit is dimensionally interchangeable per ISO 15552 with mounting options including Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ100BX650-100 FAQ
At 0.5 MPa it provides 3927 N of push force and 3681 N of pull force. If you increase the operating pressure to 0.9 MPa, the push force reaches 7068 N.
The rear adjusting screw acts as an external stopper, allowing you to shorten the 650 mm nominal stroke by up to 100 mm, resulting in a usable travel window of 550-650 mm. It only sets the end position and does not lock the load without live air.
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