Airtac SAIJ100 Adjustable Cylinder SAIJ100X400-30
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X400-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 400mm 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
- Stroke400 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X400-30
The AirTAC SAIJ100X400-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering robust thrust for demanding pneumatic setups. It yields 3927N of push force and 3681N of pull force at 0.5 MPa, scaling up to 7068N push at 0.9 MPa. This specific SKU features a 400mm nominal stroke paired with a 30mm adjustment range, creating a precise 370-400mm usable travel window for exact end-position tuning.
A defining advantage of this adjustable model is the ability to dial in the retract stop during commissioning without swapping the cylinder or fabricating external stops. The extruded aluminum barrel includes dual sensor grooves, and while this configuration omits a magnet, adding an -S variant enables compatibility with AirTAC CMSE reed and DMSE electronic solid-state switches. The G1/2 port and M20x1.5 rod thread are engineered to handle substantial loads, though the 400mm stroke requires an external guide to prevent excessive side-loading on the rod.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X400-30 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X400-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 400 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 SAIJ100X400-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×400 | 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 SAIJ100X400-30 Is Used
Variable End-Stop Diverters
Fine-tune the 370-400mm retract distance on packaging lines to adjust diverter gates for varying carton sizes without mechanical rebuilds.
Machine Setup Changeover
Speed up product changeovers by dialing the 30mm rear adjuster to hit new end positions precisely during commissioning.
Long-Stroke Forming Press
Leverage the 7068N push force at 0.9 MPa for deep-draw forming, using the adjustable stop to set material compression depth accurately.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X400-30 the Right Cylinder?
Selecting the SAIJ100X400-30 is ideal when an application requires a 370-400mm travel window that can be fine-tuned on the fly, such as accommodating product-size changes on a line. If your setup demands less force, stepping down to an 80mm bore provides 2513N push at 0.5 MPa; conversely, a 125mm bore offers 6136N for heavier loads. The rear adjuster acts strictly as a travel stop and does not hold the load without live air—true load-holding requires a SAIL pneumatic lock, BSAI clamp-lock, or external rod lock.
To match this exact ISO 15552 footprint for a direct replacement, specify a 100mm bore, 400mm stroke, 30mm adjustment range, PT tapered port thread, and carbon steel rod material. The approved mounting set for this profile cylinder includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets. Operating speed spans 30-800 mm/s, regulated by variable air cushions at both ends.
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 SAIJ100X400-30 FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 30mm, providing a usable travel window of 370-400mm. It functions as a mechanical stop for end-position tuning and does not lock the load without continuous air pressure.
At 0.5 MPa, it provides 3927N of push force and 3681N of pull force. At 0.9 MPa, the push force increases to 7068N.
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