Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-50S 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 SAIJ100X800-50S
The AirTAC SAIJ100X800-50-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers 3927N of push force at 0.5 MPa and provides a usable travel window of 750 to 800mm, letting you dial back the stroke by up to 50mm during machine setup. The extruded aluminum barrel includes dual sensor grooves, and the integrated -S magnet works seamlessly with AirTAC CMSE reed and DMSE electronic solid-state switches.
This 100mm bore model uses a robust 25mm carbon steel rod with an M20x1.5 thread, paired with a G1/2 PT port for high airflow. The rear adjuster acts purely as a mechanical stop to fine-tune the end position without needing external stops, while the variable air cushions at both ends manage deceleration over the long 800mm travel.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-50S |
|---|---|
| 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 SAIJ100X800-50S
| 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 SAIJ100X800-50S Is Used
Machine Changeover
Dial in the exact end-stop up to 50mm during product size changeovers on a packaging line without replacing the entire cylinder assembly.
End-Position Tuning
Fine-tune the retract position during commissioning to perfect a press fit, compensating for mechanical tolerances using the rear adjustment screw.
Long-Stroke Conveying
Push heavy pallets along an 800mm travel path, using the adjustable stop to vary the indexing distance for different pallet sizes.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-50S the Right Cylinder?
Choose this adjustable-stroke cylinder when your application requires precise end-position tuning at commissioning or frequent product-size changeovers, avoiding the need to physically swap out a fixed-stroke SAI cylinder. If you need less force, stepping down to an 80mm bore yields 2513N push force at 0.5 MPa; for heavier loads, a 125mm bore provides 6136N. To match this ISO 15552 replacement, specify the 100mm bore, 800mm stroke, 50mm adjustment, G1/2 PT port, and the -S magnet.
Because the nominal stroke is 800mm, the 25mm rod will experience leverage forces over that distance, so an external guide is recommended to prevent excessive side-loading. Remember that the rear adjuster is a travel stop, not a lock; this plain SAIJ cylinder will not hold a load without live air pressure, so for fail-safe load holding you should look to an SAIL air-released lock, a BSAI clamp-lock, or an external rod lock.
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 SAIJ100X800-50S FAQ
At 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At the maximum 1.0 MPa, it delivers up to 801 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from the nominal 800mm down to 750mm. It only sets the end position and does not lock the load without continuous air pressure.
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