Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-30S 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 SAIJ100BX475-30S
The AirTAC SAIJ100X475-30-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a robust 3927N push force at 0.5MPa and features a 475mm nominal stroke that can be fine-tuned down by up to 30mm, creating a precise 445-475mm usable travel window. This built-in adjustability allows you to dial in the exact retract end position during commissioning without swapping out the cylinder.
This specific configuration includes a SUS304 stainless steel rod for superior corrosion resistance and features an integrated magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors housed in the dual-side barrel grooves. It uses PT tapered ports and, like all SAIJ models, supports a dedicated mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-30S |
|---|---|
| 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 SAIJ100BX475-30S
| 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 SAIJ100BX475-30S Is Used
Product Changeover
Quickly adapt machinery for varying product lengths by dialing the retract stroke back up to 30mm, eliminating the need to physically swap cylinders during line format changes.
End-Position Tuning
Fine-tune the exact end-of-stroke position during machine commissioning to perfect seating or clamping forces without adding bulky external mechanical stops.
Heavy Forming Setup
Leverage the 3927N push force at 0.5MPa for heavy pressing or forming tasks, using the adjuster to precisely set the working depth for different material batches.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-30S the Right Cylinder?
Choose this 100mm bore when you need substantial thrust, such as the 3927N push or 3681N pull at 0.5MPa, but want the flexibility to trim the retract distance on the fly. If your application requires less force, stepping down to an 80mm bore yields 2513N push force, whereas moving up to a 125mm bore provides 6136N. The adjustable stroke is ideal for product-size changeovers on a line, whereas a fixed-stroke SAI cylinder is better for rigid, unchanging end stops.
Because the nominal stroke is 475mm, the M20x1.5 rod should be guided externally to prevent excessive side-loading and premature seal wear. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding without pressure, consider an external rod lock or the AirTAC SAIL lock variant. To replace an ISO 15552 cylinder, match the 100mm bore, 475mm stroke, PT ports, desired mounting, 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 SAIJ100BX475-30S FAQ
The rear adjuster acts as an external stopper that lets you shorten the effective stroke by up to 30mm. This gives the 475mm nominal stroke a usable travel window of 445-475mm, allowing you to fine-tune the retract position without changing the cylinder.
At a standard 0.5MPa operating pressure, it provides 3927N of push force and 3681N of pull force. At 0.7MPa, the push force increases to 5497N.
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