Airtac SAIJ100 Adjustable Cylinder SAIJ100AX300-75S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX300-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 300mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke300 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX300-75S
The AirTAC SAIJ100X300-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling you to dial back the nominal 300 mm travel by up to 75 mm for a usable window of 225-300 mm. The integrated -S magnet pairs directly with AirTAC CMSE reed and DMSE solid-state sensors mounted in the dual-side extruded aluminum barrel grooves.
This adjustable-stroke design allows precise end-position tuning during commissioning or product changeover without swapping the cylinder or adding external stops. The rear screw acts purely as a travel stop to set deceleration alongside the variable air cushions at both ends; it is not a locking mechanism and will not hold a load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, deliberately omitting FB, CA, CB, and CR.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX300-75S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX300-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 300 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX300-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×300 | 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 SAIJ100AX300-75S Is Used
Variable End-Stop Setup
Dial in the exact 225-300 mm retraction point during machine commissioning to accommodate different product sizes without physically swapping the cylinder.
Format Changeover
Quickly adjust the stroke length on packaging or assembly lines to handle varying material widths, ensuring precise positioning every time.
Deceleration Tuning
Fine-tune the rear stop position to work in harmony with the variable air cushions, optimizing the end-of-stroke deceleration for heavy loads.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX300-75S the Right Cylinder?
The adjustable 225-300 mm travel window is ideal for variable end-stop setups and machine format changeovers, offering flexibility that a fixed-stroke SAI cylinder cannot match. When specifying a replacement, ensure you match the 100 mm bore, 300 mm stroke, 75 mm adjustment, PT G1/2 port, and the -S magnet requirement.
Because this cylinder features a 300 mm stroke, the 25 mm rod and M20x1.5 rod thread will experience increased leverage forces. While the robust rod handles standard side loads well, an external guide rail is highly recommended to prevent binding and ensure smooth operation over this extended travel distance.
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 SAIJ100AX300-75S FAQ
At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw allows you to shorten the effective travel from the nominal 300 mm by up to 75 mm, creating a usable stroke window of 225-300 mm. This stop only sets the end position; it does not lock the load without live air.
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