Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-20
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 800mm 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
- Stroke800 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-20
The AirTAC SAIJ100X800-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel. With a nominal 800 mm stroke and a 20 mm adjustment range, it provides a usable travel window of 780 to 800 mm. This fine-tuning capability is ideal for dialing in end positions during commissioning without adding external stops. The 100 mm bore delivers a robust 7068N of push force at 0.9 MPa, making it well-suited for heavy-duty positioning tasks.
Constructed with an extruded aluminum barrel and sensor grooves on both sides, this non-magnetic variant uses a standard PT tapered port and a 25 mm carbon steel rod. The rear adjuster acts purely as a mechanical stop to set the travel end and is not a lock; it cannot hold the load without continuous live air pressure. For applications requiring position holding without air, consider the SAIL or BSAI series instead.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 800 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 SAIJ100X800-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×800 | 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 SAIJ100X800-20 Is Used
Machine Changeover
Dial in the exact 780 to 800 mm travel window during product size changeovers without swapping the cylinder or bolting on external stops.
Heavy Positioning
Leverage the 7068N push force at 0.9 MPa to move heavy fixtures precisely, using the rear stopper to fine-tune the final retracted position.
Long-Stroke Assembly
Execute long linear assembly presses, relying on the adjustable end-stop to compensate for mechanical tolerances over the 800 mm travel.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-20 the Right Cylinder?
Choose this 100 mm bore when you need substantial thrust that exceeds the 4523N push force at 0.9 MPa of the smaller 80 mm version, but do not require the massive 11045N output of the 125 mm size. An adjustable stroke is highly beneficial over a fixed SAI cylinder when you need variable end-stops for machine changeovers or precise product-size adjustments on a line. To match this ISO 15552 replacement exactly, specify the 100 mm bore, 800 mm stroke, 20 mm adjustment, PT port, and no magnet (-S). Because the 800 mm stroke is long and unsupported, an external guide is strongly recommended to prevent excessive side-loading on the 25 mm rod.
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 SAIJ100X800-20 FAQ
At 100 mm bore, it provides 3927N of push force at 0.5 MPa and 7068N at 0.9 MPa. The pull force is 3681N at 0.5 MPa and 5497N at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 800 mm nominal stroke by up to 20 mm. This creates a usable travel window of 780 to 800 mm for fine-tuning end positions.
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