Airtac SAIJ100 Adjustable Cylinder SAIJ100X650-75
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X650-75 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 SAIJ100X650-75
The AirTAC SAIJ100X650-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers a robust 5497N push force at 0.7 MPa, utilizing a 25mm carbon steel rod and G1/2 PT porting. The integrated rear screw stopper allows you to fine-tune the effective travel window down from a 650mm nominal stroke to a minimum of 575mm, providing a 75mm adjustment range without swapping out the physical cylinder.
This adjuster functions purely as a mechanical travel stop to set the end position and relies on the standard variable air cushions for deceleration; it is not a locking mechanism and cannot hold a load without continuous air pressure. The extruded aluminum barrel includes sensor grooves on both sides, and because no magnet is specified, you would need a different configuration to use CMSE or DMSE electronic sensors.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X650-75 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X650-75 |
|---|---|
| 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 SAIJ100X650-75
| 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 SAIJ100X650-75 Is Used
Product Changeover Lines
Dial in the 575-650mm travel window during format changeovers to accommodate varying package lengths without changing hardware.
End-Position Tuning
Use the 75mm rear stopper to precisely trim the final retract position during machine commissioning, avoiding external stop fabrication.
Large Package Sorting
Leverage the 5497N push force at 0.7 MPa to reliably divert or index heavy pallets along a 650mm stroke path.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X650-75 the Right Cylinder?
Choose this 100mm bore when an 80mm cylinder lacks thrust (the 80mm yields 3518N push at 0.7 MPa, whereas this 100mm provides 5497N). The 75mm adjustment range is highly advantageous for production lines running mixed product sizes, allowing rapid end-position changes during commissioning rather than machining external stops or reverting to a fixed-stroke SAI cylinder. Because the nominal 650mm stroke is substantial, an external guide is strongly recommended to prevent excessive side-loading on the 25mm rod thread.
For drop-in replacement, match the 100mm bore, 650mm stroke, 75mm adjustment, PT port thread, and mounting choice (the SAIJ set includes Basic, FA, LB, TC, FTC, TCM1, TCM2, omitting FB/CA/CB/CR). Remember that for fail-safe load holding without live air, you must look to the SAIL or BSAI series, as this cylinder's adjuster is only a stop.
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 SAIJ100X650-75 FAQ
At 0.7 MPa operating pressure, this 100mm bore cylinder provides 5497N of push force and 5148N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 801 kgf of push force.
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from the 650mm nominal stroke down to a minimum of 575mm. It sets the end position but does not lock the load without live air pressure.
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