Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-30
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-30 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 SAIJ100X800-30
The AirTAC SAIJ100X800-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 770 to 800 mm usable travel window. It delivers 3927 N of push force at 0.5 MPa and utilizes a robust 25 mm carbon steel rod with an M20x1.5 thread to manage heavy loads.
This adjustable-stroke design allows you to fine-tune the retract end position during commissioning without adding external stops. It includes adjustable air cushions at both ends to decelerate the motion, but note that the rear adjuster acts only as a travel stop, not a load-holding lock. For position holding without live air pressure, consider the SAIL or BSAI series.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-30 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-30 |
|---|---|
| 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 SAIJ100X800-30
| 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 SAIJ100X800-30 Is Used
Heavy Machinery Setup
Dial in the 770-800 mm retract stop during heavy equipment assembly to achieve exact positioning without machining custom spacers.
Product Changeover
Adjust the stroke end on the fly when packaging lines switch to different product sizes, ensuring precise indexing without cylinder swaps.
Long-Travel Automation
Utilize the 3927 N push force across an 800 mm span for large automated press unloading, using the rear screw for final calibration.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-30 the Right Cylinder?
Choose this 100 mm bore when the 80 mm bore class (2513 N push at 0.5 MPa) is insufficient for your load, but the 125 mm class (6136 N) would be excessive overkill. The SAIJ100X800-30 is selected over a fixed SAI cylinder when machinery requires precise end-position tuning or frequent product changeovers. To replace an ISO 15552 cylinder, match the 100 mm bore, 800 mm stroke, 30 mm adjustment, PT tapered ports, and the desired mounting bracket.
Because the 800 mm stroke is long, the 25 mm rod will experience side-load leverage if the load is not guided. Always use an external linear guide to prevent rod binding and premature seal wear.
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 SAIJ100X800-30 FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw lets you shorten the effective travel from the nominal 800 mm down to 770 mm, providing a 770-800 mm window. This stopper fine-tunes the end position but does not lock the load without continuous air pressure.
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