Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-20
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-20 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 SAIJ100X500-20
The AirTAC SAIJ100X500-20 is a double-acting ISO 15552 profile cylinder with a rear-mounted stroke adjuster, letting you fine-tune the end position within a 480 to 500 mm usable travel window. Delivering 5497N of push force at 0.7 MPa, this carbon-steel rod model handles heavy loads without requiring a cylinder swap during product changeovers.
The integrated air cushion at both ends decelerates the motion, but the rear screw acts as a travel stop, not a lock. For position holding without live air pressure, consider the SAIL or BSAI series. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-20 |
|---|---|
| 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 SAIJ100X500-20
| 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 SAIJ100X500-20 Is Used
Variable End-Stop Tuning
Dial in the precise 480-500 mm end position during machine setup without swapping out the entire cylinder or adding external mechanical stops.
Product Changeover
Quickly adjust the rear stopper to accommodate slight variations in product dimensions on the production line.
Heavy Load Positioning
Leverage the 7068N push force at 0.9 MPa to move heavy pallets or tooling, using the adjustable stop to fine-tune the final resting position.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-20 the Right Cylinder?
Choose this 100 mm bore when you need higher thrust than an 80 mm bore (which provides 3518N push at 0.7 MPa) but want to avoid the larger footprint of a 125 mm cylinder. The 20 mm adjustment range is ideal for dialing in exact end-stops during machine commissioning, whereas a fixed SAI cylinder lacks this flexibility. To replace an ISO 15552 cylinder, match the 100 mm bore, 500 mm stroke, 20 mm adjustment, PT G1/2 port, and standard carbon rod.
Because the stroke is 500 mm, the 25 mm rod and M20x1.5 thread provide robust support, but an external guide is recommended to prevent side-load damage over this long unsupported 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 SAIJ100X500-20 FAQ
At 0.7 MPa it provides 5497N of push force and 5143N of pull force. At the maximum operating pressure of 1.0 MPa, the push force reaches 801 kgf.
The rear adjuster screw lets you shorten the effective stroke by up to 20 mm, creating a 480 to 500 mm travel window. It acts as a mechanical stop to fine-tune the end position and does not lock the load without live air.
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Standard models usually ship in 3-4 days.
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