Airtac SAIJ100 Adjustable Cylinder SAIJ100X700-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X700-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 700mm 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
- Stroke700 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X700-20S
The AirTAC SAIJ100X700-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a robust 3927N push force at 0.5 MPa and features a 680-700mm adjustable travel window, allowing you to dial back the 700mm nominal stroke by up to 20mm during commissioning. This built-in fine-tuning eliminates the need to swap cylinders or bolt on external stops when finalizing end positions.
This variant includes a magnet for CMSE and DMSE sensors and uses a carbon steel rod with an M20x1.5 thread. Because the adjuster and the variable air cushions at both ends only decelerate the travel, they do not hold the load without live air. For position holding without pressure, consider the SAIL or BSAI series. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X700-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X700-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 700 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 SAIJ100X700-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×700 | 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 SAIJ100X700-20S Is Used
Product Changeovers
Quickly reconfigure the retract end-stop from 700mm down to 680mm when adapting machinery to run a slightly shorter product format.
Final Position Tuning
Dial in the exact end-of-stroke position during machine commissioning without machining external stopper blocks or replacing the cylinder.
Heavy Forming Press
Leverage the 3927N push force at 0.5 MPa for heavy-duty pressing operations while fine-tuning the bottoming depth via the rear screw.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X700-20S the Right Cylinder?
Choose this 100mm bore when you need significantly more thrust than the 80mm bore provides (2513N push at 0.5 MPa), but do not require the massive output of the 125mm version (6133N). The adjustable stroke is ideal for product-size changeovers on a line, letting you set a new retract end-stop without changing the cylinder. To replace an ISO 15552 cylinder, match the 100mm bore, 700mm stroke, 20mm adjustment, PT tapered port, and the -S magnet.
With a 700mm stroke, the M20x1.5 rod is highly susceptible to side-loading. Even though the larger rod handles more bending stress, you must use an external guide to prevent binding and premature seal wear. The SAIJ mounting set includes 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 SAIJ100X700-20S FAQ
At 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At 0.9 MPa, the push force increases to 7068N.
The rear adjuster screw allows you to shorten the 700mm nominal stroke by up to 20mm, creating a 680-700mm usable travel window. It acts as a mechanical stop to fine-tune the end position and does not lock the load without live air pressure.
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