Airtac SAIJ100 Adjustable Cylinder SAIJ100AX425-50S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX425-50S 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 SAIJ100AX425-50S
The AirTAC SAIJ100X425-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel window down from a 425 mm nominal stroke to a 375-425 mm range. The integrated PT G1/2 port threads and SUS420J2 stainless steel rod (code A) provide reliable corrosion resistance for demanding environments.
Because this SKU includes a magnet (-S), it supports position sensing via AirTAC CMSE reed switches or DMSE solid-state electronic sensors fitted into the dual-side extruded aluminum barrel grooves. The rear adjustment mechanism functions strictly as a travel stop for end-position tuning and relies on the variable air cushions for deceleration; it does not lock or hold the load without live air pressure. For applications requiring true load-holding without continuous air, consider the SAIL pneumatic lock or BSAI clamp-lock series.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX425-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX425-50S |
|---|---|
| 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 SAIJ100AX425-50S
| 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 SAIJ100AX425-50S Is Used
Variable End-Stop Positioning
Dial in the 375-425 mm travel window during commissioning to precisely set the pusher end-position for varying product lengths without adding external mechanical stops.
Product Size Changeover
Quickly readjust the rear stopper on the line when switching between different package dimensions, utilizing the 50 mm trim range to accommodate new format requirements.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX425-50S the Right Cylinder?
The 50 mm adjustment window is ideal when you need variable end-stops for different product sizes on the same line, saving the cost and downtime of physically swapping a fixed-stroke SAI cylinder. To match this ISO 15552 interchangeable cylinder, specify the 100 mm bore, 425 mm stroke, 50 mm adjuster, PT G1/2 port, and the -S magnet.
Since the 425 mm stroke exceeds the 300 mm threshold, the 25 mm diameter piston rod and M20x1.5 rod thread will experience amplified leverage on any lateral force. Even with the sturdy stainless steel rod, you must use an external guide rail to prevent side-loading and premature seal wear during extended travel.
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 SAIJ100AX425-50S FAQ
The maximum thrust is 801 kgf at 1.0 MPa.
The rear adjusting screw acts as an external stopper, allowing you to shorten the effective stroke from the nominal 425 mm down to as little as 375 mm. This creates a 50 mm tuning window for setting exact end-positions without swapping the cylinder.
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Standard models are processed and dispatched in 3-5 business days.
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