Airtac SAIJ100 Adjustable Cylinder SAIJ100X400-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X400-30S 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 SAIJ100X400-30S
The AirTAC SAIJ100X400-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 370-400mm. Delivering 3927N of push force at 0.5MPa, this carbon-steel rod unit integrates a magnet for position sensing via CMSE reed or DMSE electronic switches.
Featuring a G1/2 port and M20x1.5 rod thread, the robust 25mm rod handles high side-loads, though a 400mm stroke still requires an external guide for optimal stability. The rear adjuster acts purely as a mechanical stop to dial in the end position during commissioning; it does not lock the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X400-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X400-30S |
|---|---|
| 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 SAIJ100X400-30S
| 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 SAIJ100X400-30S Is Used
Machine Setup & Changeover
Quickly dial in the 370-400mm travel window during format changes, eliminating the need to physically swap out cylinders for different product lengths.
Variable End-Stop Positioning
Fine-tune the retract end position on the fly to accommodate varying package sizes on a conveyor line without adding external mechanical stops.
Heavy-Duty Assembly Press
Leverage the 3927N push force at 0.5MPa for pressing components, using the rear screw to precisely set the final pressing depth during commissioning.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X400-30S the Right Cylinder?
Choose this 100mm bore when 80mm (2513N push at 0.5MPa) is insufficient, but a 125mm bore (6136N) would be excessive overkill. The 30mm adjustable window is ideal for product-size changeovers on a packaging line, allowing you to shift the retract end-stop without swapping the cylinder or bolting on external stops. For holding loads without live air, select the SAIL or BSAI series instead, as the SAIJ adjuster is not a locking brake.
When matching ISO 15552 cylinders, specify the 400mm stroke, 30mm adjustment, PT tapered G1/2 port, and the -S magnet. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets.
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 SAIJ100X400-30S FAQ
At 0.5MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At 0.9MPa, the push force increases to 7068N.
The rear adjusting screw acts as a mechanical stop that lets you shorten the effective stroke by up to 30mm, providing a usable travel window of 370-400mm. It only sets the end position and does not hold the load without live air pressure.
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