Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-50 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 SAIJ100X800-50
The AirTAC SAIJ100X800-50 is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, delivering 3927 N of push force at 0.5 MPa. It features a 25 mm carbon steel piston rod and a G1/2 port. The integrated external screw stopper allows you to shorten the effective stroke, providing a precise 750-800 mm usable travel window for fine-tuning during commissioning.
This adjustable mechanism acts purely as a mechanical stop to set the retract end position and relies on variable air cushions at both ends for deceleration; it does not hold the load without live air pressure. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE reed or DMSE electronic sensors if a magnet is specified later. It uses a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-50 |
|---|---|
| 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 SAIJ100X800-50
| 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 SAIJ100X800-50 Is Used
Machine Changeover
Dial in the 750-800 mm travel window during product size changes without physically replacing the cylinder or reworking fixed stops.
End-Position Tuning
Fine-tune the retract end-position at commissioning to absorb mechanical tolerances over the 800 mm stroke using the rear screw.
Assembly Line Conveying
Push heavy pallets with 3927 N of force at 0.5 MPa while adjusting the stroke by up to 50 mm to handle varied pallet sizes.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-50 the Right Cylinder?
Choose this 100 mm bore when 80 mm (2513 N push at 0.5 MPa) is insufficient, but a 125 mm bore (6136 N) would be excessive. The 50 mm adjustment range is ideal for product changeovers on a line, allowing you to shift the end-stop by 50 mm without swapping the cylinder or adding external stops. For load-holding without live air, the rear adjuster is not a lock—consider an AirTAC SAIL or BSAI cylinder instead.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 800 mm stroke, 50 mm adjustment, G1/2 PT port, and mounting style. Because the 800 mm stroke is long, the 25 mm rod handles significant side loads, but an external guide is recommended to prevent binding over this extended 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 SAIJ100X800-50 FAQ
At 0.5 MPa, it provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 800 mm nominal stroke by up to 50 mm, resulting in a 750-800 mm usable travel window. It is a stop, not a lock, and does not hold the load without air pressure.
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