
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 195mm 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 SAIJ125X195-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 95-195 mm, allowing you to dial back the nominal 195 mm stroke by up to 100 mm during commissioning without adding external stops. The 125 mm bore delivers 6136 N pull force at 0.5 MPa, scaling to 11045 N at 0.9 MPa for heavy-duty positioning.
This model uses a PT tapered port thread and a robust 32 mm carbon steel rod with an M27x2 thread, providing high resistance to side loads. It supports speeds of 30-500 mm/s and features variable air cushions at both ends. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of DMSE solid-state or CMSE reed switches.
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 195 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 40 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 | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 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. |
|---|---|
| 125 | Bore size in mm. |
| ×195 | 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 end-stop for new product dimensions during line changeovers without swapping the cylinder or adding external mechanical stops.
Fine-tune the retract stroke within the 95-195 mm window during commissioning to perfect the seating force of large heavy-duty assemblies.
Leverage the 11045 N push force at 0.9 MPa for substantial pressing and forming tasks while retaining the flexibility to adjust travel.
Select this 125 mm bore adjustable cylinder when your application requires precise end-position tuning across a 95-195 mm travel window, such as accommodating multiple product sizes on the same line. If you need less force, the 100 mm bore offers 3681 N pull at 0.5 MPa; if you need more, the 160 mm bore provides 9425 N. The rear adjuster acts as a travel stop and does not hold the load without live air. For fail-safe load holding without pressure, consider the SAIL pneumatic lock or BSAI clamp-lock series.
As a dimensionally interchangeable ISO 15552 cylinder, it matches standard mounting footprints using the Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounting set, omitting FB, CA, CB, and CR options. Because the 195 mm stroke is under the 300 mm threshold, external side-load guides are less critical here, but the 32 mm rod still handles substantial off-axis forces effectively.
Quick checklist
At 0.5 MPa it provides 6136 N pull force and 8590 N push force. At 0.9 MPa, the push force increases to 11045 N.
The rear adjuster screw lets you shorten the effective travel from the 195 mm nominal stroke down to 95 mm. It functions as a mechanical stop to decelerate the load, not as a lock, so it will not hold the load without live air pressure.
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