Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 500mm 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
- Stroke500 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-40
The AirTAC SAIJ100X500-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a robust 3927N push force at 0.5MPa. It features a 25mm carbon steel rod and a G1/2 PT port. The built-in rear stopper screw allows you to fine-tune the effective travel within a 460-500mm window, providing precise end-position calibration during commissioning without needing external stops.
Because the nominal 500mm stroke is substantial, the 25mm rod diameter and M20x1.5 thread are critical for managing side loads, though an external guide is still recommended for unsupported loads. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches. This adjustable variant uses a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 500 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 SAIJ100X500-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×500 | 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 SAIJ100X500-40 Is Used
Machine Setup & Changeover
Dial in the exact end-position within the 460-500mm window during product line changeovers without physically replacing the cylinder.
Variable End-Stop Positioning
Provides a mechanical stop to tune the retract distance on automated assembly lines where multiple part sizes are processed.
Material Handling Diverter
Adjusts the stroke length on the fly to accommodate different package sizes on a conveyor routing system.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-40 the Right Cylinder?
Select this 100mm bore cylinder when your application requires substantial thrust—stepping up from the 80mm bore yields 2513N push force at 0.5MPa, while dropping to 125mm increases it to 6136N. An adjustable stroke is ideal for machine setups requiring variable end-stops or product-size changeovers, eliminating the need to swap out a fixed-stroke SAI cylinder. When matching an ISO 15552 replacement, verify the 100mm bore, 500mm stroke, 40mm adjustment, G1/2 port, and mounting style.
For a 500mm stroke, adding an external guide is highly recommended to prevent excessive rod wear. Note that the rear adjuster functions purely as a mechanical travel stop and does not hold the load without live air pressure; for true load-holding without continuous air, 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 SAIJ100X500-40 FAQ
At 0.5MPa, 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 acts as a mechanical stop, allowing you to trim the effective travel back by up to 40mm. This creates a usable stroke window of 460-500mm for fine-tuning end positions at commissioning.
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