Airtac SAIJ100 Adjustable Cylinder SAIJ100X400-100S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X400-100S 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 SAIJ100X400-100S
The AirTAC SAIJ100X400-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a carbon steel piston rod and a built-in magnet for position sensing. With a nominal 400 mm stroke and a 100 mm adjustment range, it provides a flexible 300-400 mm usable travel window, allowing you to dial in the exact end position without adding external stops.
Delivering 5497 N of push force at 0.7 MPa, this bore size handles heavy loads while retaining standard ISO 15552 mounting dimensions. The extruded aluminum barrel includes dual sensor grooves compatible with CMSE reed and DMSE electronic switches. The rear adjuster acts purely as a mechanical stop to set travel limits and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X400-100S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X400-100S |
|---|---|
| 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 SAIJ100X400-100S
| 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 SAIJ100X400-100S Is Used
Product Size Changeovers
Quickly adapt machinery for varying product lengths by dialing the rear stopper back from 400 mm to 300 mm, avoiding the need to physically swap cylinders during a line changeover.
End-Position Calibration
Fine-tune the retract end-position during machine commissioning to ensure precise alignment without machining custom external stop blocks.
Variable Stroke Diverging
Sort or divert items of varying dimensions on a conveyor by adjusting the effective stroke within the 300-400 mm window to accommodate different package profiles.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X400-100S the Right Cylinder?
Choose this adjustable model when your machine setup requires frequent product-size changeovers or fine end-position tuning at commissioning. Instead of swapping a fixed-stroke SAI cylinder, the rear screw lets you trim up to 100 mm of travel on the fly. If your application needs less force, stepping down to an 80 mm bore yields 3518 N at 0.7 MPa; if you require more, a 125 mm bore provides 8590 N.
Because the nominal stroke is 400 mm, the M20x1.5 rod thread and 25 mm rod diameter should be supported by an external guide to prevent excessive side-loading on the gland. This cylinder uses a PT tapered port thread and supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2. For applications that must hold a load mechanically without continuous air pressure, use an SAIL air-released lock or BSAI clamp-lock cylinder instead of relying on the rear adjuster.
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 SAIJ100X400-100S FAQ
At 0.7 MPa operating pressure, this 100 mm bore cylinder generates 5497 N of push force and 3681 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 801 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from the 400 mm nominal stroke down to 300 mm. It sets the end position but does not lock or hold the load without live air pressure.
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