
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX95-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 95mm stroke, G3/8 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 SAIJ80X95-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel anywhere within a 55-95 mm window. Delivering 2513 N of push force at 0.5 MPa, it is built with a SUS304 stainless steel rod for superior corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides, and because this unit includes a magnet, it is fully compatible with AirTAC CMSE reed and DMSE electronic solid-state switches.
Configuration is highly versatile, utilizing PT tapered port threads and a G3/8 air supply. The rear stopper screw lets you dial back the nominal 95 mm stroke by up to 40 mm during machine commissioning, eliminating the need to physically swap cylinders or bolt on external stops when product sizes change. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, intentionally omitting the FB, CA, CB, and CR variants found on some other series.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX95-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 95 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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. |
|---|---|
| 80 | Bore size in mm. |
| ×95 | 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 55-95 mm end-position during machine setup to accommodate different material thicknesses without changing the physical cylinder.
Rapidly adjust the retract stop on packaging lines to handle varying package dimensions on the fly, minimizing downtime between production runs.
Leverage the SUS304 stainless steel rod and 2513 N push force to drive heavy gating or clamping tasks in wash-down or mildly corrosive industrial settings.
Selecting this 80 mm bore provides a robust 2268 N pull force at 0.5 MPa, bridging the gap between the 63 mm bore (1402 N pull) and the 100 mm bore (3681 N pull). The adjustable stroke is ideal for production lines running multiple product lengths, as the 40 mm trim range allows rapid end-position tuning without mechanical modifications. For load-holding applications without live air pressure, note that the rear adjuster acts only as a travel stop and does not function as a lock; you should specify an AirTAC SAIL or BSAI series cylinder or an external pilot-operated check valve instead.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 95 mm stroke, 40 mm adjustment range, PT G3/8 port, and the -S magnet requirement. Because the stroke is under 300 mm, side-load stress on the 25 mm rod and M20x1.5 rod thread is manageable, though long unsupported loads should still use an external guide.
Quick checklist
At an operating pressure of 0.5 MPa, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At the maximum rated pressure of 1.0 MPa, it can deliver up to 513 kgf.
The rear adjuster acts as a mechanical stop that allows you to shorten the nominal 95 mm stroke by up to 40 mm, providing a usable travel window of 55 to 95 mm. It only sets the end position and decelerates the load; it does not hold the load without live air pressure.
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