
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 50mm 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 SAIJ100X50-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 20 to 50 mm, allowing you to dial back the nominal 50 mm stroke by up to 30 mm during commissioning. In this configuration, the rod is crafted from SUS304 stainless steel (code B) and utilizes a PT tapered port thread.
Delivering 3927 N of push force at 0.5 MPa, this bore size handles substantial loads. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed or DMSE electronic switches, though no magnet is equipped in this specific SKU. The rear adjuster acts purely as a travel stop to fine-tune end positions without swapping the cylinder.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 50 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. |
| ×50 | 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 20 to 50 mm end position during product size transitions without replacing the cylinder or adding shims.
Use the rear adjusting screw to fine-tune the final retract position during machine commissioning for precise placement.
Leverage the 3927 N push force at 0.5 MPa to move substantial masses while trimming the stroke to match the process window.
Choose this 100 mm bore when a 80 mm bore (providing 2513 N push at 0.5 MPa) is insufficient for your load requirements. The adjustable 20-50 mm travel window is ideal for product changeovers or fine-tuning end stops without adding external physical stops. For any application needing the cylinder to hold a load without live air pressure, note that this adjuster is not a lock; consider an external pilot-operated check valve or the AirTAC SAIL lock series.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 50 mm stroke, 30 mm adjustment range, PT port thread, SUS304 rod material, and standard mounting interface. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
At 0.5 MPa operating pressure, the 100 mm bore provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster acts as a mechanical stop, allowing you to shorten the effective travel from the nominal 50 mm down to 20 mm. It sets the end position but does not lock or hold the load without live air pressure.
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