
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-75 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.
The AirTAC SAIJ100X475-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 400 to 475 mm, allowing you to dial back the nominal 475 mm stroke by up to 75 mm during commissioning. This bore delivers a robust 7068 N of push force at 0.9 MPa, making it suitable for heavy-duty positioning tasks.
This variant is built with a SUS304 stainless steel rod for superior corrosion resistance and includes PT tapered port threads. The extruded aluminum barrel features sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is added later. The mounting set covers Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-75 |
|---|---|
| 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.
| 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.
| 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.
Dial in the exact retract distance between 400 and 475 mm for heavy-duty machining operations without needing to disassemble the cylinder mount.
Quickly adapt a packaging line to handle different box sizes by adjusting the rear stopper, saving time during production transitions.
Leverage the 7068 N push force at 0.9 MPa to move heavy fixtures into their final resting place, fine-tuning the end position at commissioning.
Choose this 100 mm bore when you need substantial thrust—stepping down to an 80 mm bore drops the 0.5 MPa push force to 2513 N, whereas this model provides 3927 N at the same pressure. The adjustable stroke is ideal for product changeovers, letting you fine-tune the end position without swapping cylinders or adding external stops. Because the 475 mm stroke is relatively long, an external guide is recommended to manage side loads on the 25 mm rod.
For load-holding applications, remember that the rear adjuster acts only as a travel stop and the air cushions only decelerate motion—neither will hold a load without live air pressure. If your setup requires true locking, consider the AirTAC SAIL or BSAI series. To match this ISO 15552 replacement, verify the 100 mm bore, 475 mm stroke, 75 mm adjustment, PT ports, and the specified mounting style.
Quick checklist
This 100 mm bore cylinder provides a push force of 3927 N at 0.5 MPa and 7068 N at 0.9 MPa. The pull force at 0.5 MPa is 3681 N.
The rear adjuster allows you to shorten the effective stroke by up to 75 mm. This creates a usable travel window between 400 and 475 mm, letting you fine-tune the end position without changing the cylinder.
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