Airtac SAIJ100 Adjustable Cylinder SAIJ100X425-10
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X425-10 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke425 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X425-10
The AirTAC SAIJ100X425-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 3927N of push force at 0.5MPa. It features a carbon steel piston rod and PT tapered ports. By integrating an external adjusting screw, this cylinder provides a usable travel window of 415-425mm, letting you dial in the exact retract position without adding external stops.
Because it is an extruded aluminum profile cylinder, it includes sensor grooves on both sides for straightforward position feedback. The rear screw acts purely as a travel stop for end-position tuning, meaning it will not hold the load dynamically without live air pressure. For applications requiring position holding without continuous air, consider the SAIL or BSAI locking cylinder variants.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X425-10 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X425-10 |
|---|---|
| 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 | 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 SAIJ100X425-10
| 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 SAIJ100X425-10 Is Used
Machine Setup & Changeover
Fine-tune the 415-425mm retract position during product line changeovers to accommodate varying package sizes without swapping cylinders.
Variable End-Stop Positioning
Dial in the exact end-of-stroke point during initial commissioning to perfect the mechanical timing of heavy-duty assembly equipment.
Heavy-Duty Forming
Leverage the 3927N push force at 0.5MPa for pressing applications while using the 10mm adjuster to set precise material engagement depths.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X425-10 the Right Cylinder?
Choose this 100mm bore when you need substantial thrust, such as the 3927N push force at 0.5MPa, but want the flexibility to fine-tune the retract end-stop during commissioning or product changeovers. If your application requires less force, stepping down to an 80mm bore yields 2513N at 0.5MPa, whereas moving up to a 125mm bore provides 6136N. The adjustable stroke is ideal for variable end stops where a fixed-stroke SAI cylinder would require mechanical shimming.
When replacing an ISO 15552 cylinder, match the 100mm bore, 425mm stroke, 10mm adjustment range, PT port threads, and your required mounting style. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Since the 425mm stroke is relatively long, ensure adequate external guidance to prevent excessive side-loading on the 25mm rod, despite its robust M20x1.5 thread.
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 SAIJ100X425-10 FAQ
At 0.5MPa operating pressure, this 100mm bore cylinder provides a push force of 3927N and a pull force of 3681N. At 0.7MPa, the push force increases to 5497N.
The rear adjuster screw allows you to shorten the effective stroke by up to 10mm, creating a usable travel window between 415mm and 425mm. It functions as a mechanical stop for end-position tuning and is not a locking device.
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