Airtac SAIJ100 Adjustable Cylinder SAIJ100AX425-75
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX425-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 425mm 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
- Stroke425 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 SAIJ100AX425-75
The AirTAC SAIJ100X425-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 425 mm travel that can be dialed back by up to 75 mm, yielding a precise 350-425 mm usable window for fine end-position tuning during commissioning.
This model incorporates variable air cushions at both ends and dual-side sensor grooves. The rear adjuster acts purely as a mechanical stop to set the travel limit and does not hold the load without live air pressure. For load-holding requirements without continuous air, an external rod lock or the AirTAC SAIL/BSAI series is recommended.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX425-75 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX425-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 425 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 SAIJ100AX425-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×425 | 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 SAIJ100AX425-75 Is Used
Machine Setup & Changeover
Dial in the 350-425 mm travel window during product size transitions without physically swapping the cylinder or adding external mechanical stops.
Variable End-Stop Positioning
Use the 75 mm rear adjuster to fine-tune the retract end position precisely during initial commissioning or tooling adjustments.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX425-75 the Right Cylinder?
The adjustable stroke is ideal for machine setups requiring variable end stops or product changeovers, avoiding the need to swap out a fixed-stroke SAI cylinder or bolt on external stops.
With a 425 mm stroke exceeding 300 mm, the 25 mm rod diameter and M20x1.5 rod thread carry decent side loads, but an external guide is strongly recommended to prevent rod binding over long unsupported travels. This SKU is configured with PT tapered ports and uses the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
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 SAIJ100AX425-75 FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 75 mm from the 425 mm nominal length, creating a 350-425 mm travel window. The adjuster functions as a travel stop and does not lock or hold the load without continuous air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ100 Adjustable Cylinder SAIJ100AX425-75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.