Airtac SAIJ100 Adjustable Cylinder SAIJ100X65-40S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X65-40S 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 SAIJ100X65-40S
The AirTAC SAIJ100X65-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 3927N of push force at 0.5 MPa. By turning the rear screw, you can trim the nominal 65mm stroke back by up to 40mm, creating a precise 25-65mm usable travel window for exact end-position tuning during commissioning. This eliminates the need to swap cylinders or bolt on external stops when dialing in a machine sequence.
This bore features a 25mm carbon steel rod and an M20x1.5 rod thread, providing a robust interface that handles high side loads well. The extruded aluminum barrel includes sensor grooves on both sides, and because this SKU includes a magnet (-S), it supports AirTAC CMSE reed and DMSE electronic solid-state switches for exact position feedback. It uses a PT tapered port thread and adjustable air cushions at both ends to decelerate the payload smoothly.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X65-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X65-40S |
|---|---|
| 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 SAIJ100X65-40S
| 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 SAIJ100X65-40S Is Used
Machine Setup & Changeover
Dial in the exact 25-65mm retraction end-stop during product family changeovers without swapping out the entire actuator or adding external mechanical stops.
Variable End-Stop Forming
Provides 3927N of thrust at 0.5 MPa for pressing or forming operations where the material thickness varies and the final stroke distance requires physical fine-tuning.
Short-Stroke Clamping
Ideal for heavy-duty clamping stations that need a wide 40mm adjustment window to accommodate different part sizes while using DMSE electronic sensors for position verification.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X65-40S the Right Cylinder?
Select this 100mm bore when an 80mm cylinder (delivering 2513N push at 0.5 MPa) lacks the necessary thrust, but before stepping up to a 125mm bore (6136N push at 0.5 MPa) which adds excess physical size and air consumption. The 40mm adjustment range is ideal for prototyping or product-size changeovers where the exact retraction distance must be dialed in physically on the machine rather than programmed electronically. To match this cylinder for an ISO 15552 replacement, confirm the 65mm stroke, 40mm adjuster, PT port thread, and the -S magnet requirement.
Remember that the rear adjuster functions strictly as a travel stop, not a locking device; it cannot hold a load without continuous live air pressure. If your application requires true load-holding on the retraction end without air pressure, consider an AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinder instead of relying on the standard SAIJ adjuster. The mounting hardware is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2 kits, deliberately omitting FB, CA, CB, and CR brackets.
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 SAIJ100X65-40S FAQ
At 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. If you increase the pressure to 0.7 MPa, the push force rises to 5497N.
The rear adjusting screw acts as a mechanical stopper that lets you shorten the nominal 65mm stroke by up to 40mm, resulting in a usable travel window of 25-65mm. It sets the end position but does not lock the load without live air pressure.
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