Airtac SAIJ100 Adjustable Cylinder SAIJ100AX300-20S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX300-20S 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 SAIJ100AX300-20S
The AirTAC SAIJ100X300-20-S is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, enabling you to dial back the 300 mm nominal stroke by up to 20 mm for a precise 280-300 mm usable travel window. The extruded aluminum barrel features sensor grooves on both sides to accommodate position feedback.
This specific SKU is configured with a SUS420J2 stainless steel rod for superior corrosion resistance and includes a piston magnet (-S) for use with AirTAC CMSE reed and DMSE solid-state sensors. It uses a PT tapered port and offers variable air cushions at both ends to manage kinetic energy. The rear adjuster acts purely as a mechanical stop to fine-tune the end position during commissioning without adding external stops.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX300-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX300-20S |
|---|---|
| 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 SAIJ100AX300-20S
| 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 SAIJ100AX300-20S Is Used
Machine Changeover
Fine-tune the 280-300 mm end-stop during product size transitions on a packaging line without physically swapping cylinders or repositioning hard stops.
Commissioning Calibration
Dial in the exact retraction point during initial machine setup to perfectly seat heavy components, absorbing mechanical tolerance variations across the fixture.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX300-20S the Right Cylinder?
The 20 mm adjustment range is ideal for product changeovers where the exact end-of-stroke position varies slightly by part size, saving you from swapping out a fixed-stroke SAI cylinder. To replicate this ISO 15552 interchangeable cylinder, match the 100 mm bore, 300 mm stroke, 20 mm adjustment, PT port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and the -S magnet.
Because the stroke is 300 mm, the 25 mm rod diameter should still be paired with an external guide to prevent excessive side-loading on the rod seals. Remember that the rear adjuster and air cushions only decelerate the load; they do not hold it without live air. For true load-holding without pressure, consider the SAIL or BSAI series instead.
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 SAIJ100AX300-20S FAQ
The rear adjusting screw acts as an external stopper, allowing you to shorten the effective stroke from the nominal 300 mm down to 280 mm. This provides a 20 mm adjustable travel window for fine-tuning the end position at commissioning without changing the cylinder itself.
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