The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X100-10S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm bore and 100mm stroke, G1/4 air ports and adjustable end cushioning. Its no-tie-rod, hard-anodized profile barrel is more compact than an ISO 15552 cylinder of the same bore — a space-saver on tight machines.
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder features an external adjuster that shortens the extend stroke on-site by up to 10 mm. The nominal 100 mm stroke remains the maximum travel, yielding a usable 90-100 mm extend range while the retract end stays fixed. Its extruded hard-anodized aluminium barrel makes it shorter and more compact than a same-bore ISO 15552 cylinder. The -S suffix adds a built-in piston magnet for CMSE/DMSE switches. A G1/4 port handles the air supply.
In practical terms, it handles about 589 N of real work, roughly 50 kg lifted vertically with a 2:1 margin. The adjustable air cushions at both ends provide 20.5 mm of deceleration. Remember that a plain cylinder drifts on air loss; the cushion only decelerates near the end, so fit an external rod lock or pilot-operated check valve for held loads.
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X100-10S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 100 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/4 |
| Rod thread | M18×1.5 |
| 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, 20.5 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC JSI (JIS standard) datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G. Barrel: hard-anodized aluminum profile (no tie rods).
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×100 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensors. |
JSI-family variants: JSI (double acting), JSID (double rod), JSIJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / TCM1 / TCM2. Thread PT (blank) / G.
Dial in the exact 90-100 mm extend reach on-site to clamp varying part heights without re-engineering the fixture.
Shorten the extend stroke by 10 mm on the fly to accommodate different package widths on a packaging line.
Lift up to 50 kg vertically while using the 20.5 mm cushions to soften the end-of-stroke impact safely.
Size this 50 mm bore against its neighbours: a 40 mm bore gives 628 N push at 0.5 MPa, while a 63 mm bore yields 1559 N. Choose the 50 mm when you need roughly 589 N of safe working load. The 10 mm extend-shortening window lets you fine-tune the end position without swapping the cylinder, ideal for sharing a spare across stroke variants. Mounting options include FA, LB, TC, TCM1, and TCM2. The -S magnet supports CMSE/DMSE sensors in the side grooves. For any stroke at or over 300 mm, always use a guide rail to prevent side-load damage to the M18x1.5 rod thread.
Quick checklist
At 0.5 MPa it pushes 982 N and pulls 825 N. At 0.7 MPa it pushes 1374 N and pulls 1154 N. The theoretical maximum force is 200 kgf at 1.0 MPa.
The external stop screw lets you shorten the extend stroke by up to 10 mm on-site. The nominal 100 mm stroke is the maximum, giving a usable extend range of 90-100 mm, while the retract end remains fixed.
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