Airtac SAIJ100 Adjustable Cylinder SAIJ100X65-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X65-20S 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 SAIJ100X65-20S
The AirTAC SAIJ100X65-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 45 to 65 mm for precise end-position tuning. It delivers a substantial 3927 N push force at 0.5 MPa, making it well-suited for heavy-duty positioning tasks. The barrel features extruded aluminum construction with sensor grooves on both sides, fully supporting the integrated magnet (-S) for CMSE reed and DMSE electronic solid-state switches.
The rear adjustment screw acts purely as a mechanical stop to trim the retract stroke without swapping out the cylinder or adding external stops. It is important to note that neither this adjuster nor the variable air cushions at both ends can hold a load without continuous live air pressure; for true load-holding, a SAIL or BSAI variant is required. This 100 mm bore model uses a G1/2 port and a 25 mm carbon steel rod with an M20x1.5 thread, offering robust resistance to side loading.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X65-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X65-20S |
|---|---|
| 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 SAIJ100X65-20S
| 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 SAIJ100X65-20S Is Used
Precision Press Fitting
Dial in the exact 45-65 mm insertion depth for press operations during machine setup, allowing rapid adaptation to slightly varying part heights without changing hardware.
Product Changeover Stops
Quickly adjust the retract end-stop when a production line shifts to a new product format, fine-tuning the travel window by up to 20 mm in seconds.
Heavy Duty Positioning
Leverage the 3927 N push force at 0.5 MPa to move heavy pallets or fixtures into their final mechanical stops with precise, adjustable positioning.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X65-20S the Right Cylinder?
Select this adjustable-stroke model when your application requires exact end-position tuning during commissioning or frequent product changeovers, avoiding the need to physically swap a fixed-stroke SAI cylinder. With a 100 mm bore delivering 3927 N of thrust at 0.5 MPa, it provides immense pushing power; if your force requirements are lower, stepping down to an 80 mm bore yields 2513 N, while moving up to a 125 mm bore provides 6136 N. To ensure a true ISO 15552 replacement match, verify the 65 mm nominal stroke, 20 mm adjustment range, G1/2 PT port, and the -S magnet option.
Because the 25 mm rod and M20x1.5 thread provide excellent structural rigidity, this cylinder handles high kinetic energy well, though any application with heavy lateral loads should still incorporate an external guide to prevent premature seal wear. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, deliberately omitting FB, CA, CB, and CR configurations.
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 SAIJ100X65-20S FAQ
The rear adjuster screw allows you to mechanically shorten the retract stroke by up to 20 mm, creating a usable travel window of 45 to 65 mm. It functions as a hard stop for end-position tuning and does not lock the load without live air pressure.
At 0.5 MPa operating pressure, it provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
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