Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-75S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 475mm 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
- Stroke475 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-75S
The AirTAC SAIJ100X475-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a robust 3927N push force at 0.5 MPa and uses a PT tapered G1/2 port. The integrated -75 adjuster screw creates a 400-475mm usable travel window, allowing you to dial in the exact end position during commissioning without adding external stops.
This variant includes a SUS304 stainless steel rod for superior corrosion resistance and an -S magnet for electronic DMSE or reed CMSE sensors. The extruded aluminum barrel carries sensor grooves on both sides. Remember that the rear adjuster acts only as a travel stop to set deceleration, not as a load-holding lock; use a SAIL or BSAI cylinder if static holding without live air is required.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-75S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 475 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 SAIJ100BX475-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×475 | 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 SAIJ100BX475-75S Is Used
Machine Setup & Changeover
Fine-tune the 400-475mm travel window during product line changeovers to accommodate varying package sizes without swapping out the cylinder.
Variable End-Stop Positioning
Dial in the exact retraction point during initial commissioning to synchronize multiple actuators on a large assembly fixture.
Heavy-Duty Clamping
Leverage the 3927N push force at 0.5 MPa to securely clamp large workpieces while using the rear screw to adjust clamping depth.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-75S the Right Cylinder?
Select this 100mm bore cylinder when an 80mm bore (2513N push at 0.5 MPa) lacks the thrust for your fixture, but you also need precise variable end-stops for product changeovers. The 475mm stroke exceeds 300mm, so an external guide is strongly recommended to prevent side-loading damage to the M20x1.5 piston rod.
An adjustable SAIJ is preferred over a fixed SAI when machine setups require fine end-position tuning. To match this ISO 15552 interchangeable cylinder, specify: 100mm bore, 475mm stroke, -75mm adjustment, PT G1/2 ports, Basic/FA/LB/TC/FTC/TCM1/TCM2 mountings, and the -S magnet.
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 SAIJ100BX475-75S FAQ
The rear adjuster screw lets you shorten the nominal 475mm stroke by up to 75mm, providing a usable travel window of 400-475mm. It acts as a mechanical stop to tune the end position, but it is not a lock and will not hold the load without live air pressure.
At 0.5 MPa it provides 3927N of push force and 3681N of pull force. At the maximum operating pressure of 1.0 MPa, the push force increases to 801kgf.
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