
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X800-30 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm bore and 800mm 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 is built for long-reach actuation where end-position flexibility matters. The hard-anodized aluminium barrel keeps the overall body shorter and more compact than a same-bore ISO 15552 unit. It handles about 589 N of real work safely, which translates to lifting roughly 50 kg vertically with a 2:1 margin. Air connects via a G1/4 port, and the Ø20 mm rod carries an M18x1.5 thread.
The -30 code defines an external adjuster window that lets you shorten the extend stroke on-site by up to 30 mm, giving a usable range of 770-800 mm while the retract end stays fixed. You can fine-tune the stopping point without swapping the cylinder. Note that this SKU lacks a magnet, so it cannot take CMSE or DMSE sensors. The 20.5 mm adjustable air cushions at both ends only decelerate the piston near stroke end; they do not hold the load. For vertical holding on air loss, fit an external rod lock or pilot-operated check valve.
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X800-30 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 800 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). |
| ×800 | 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.
Raises a heavy access panel over 770-800 mm. The external adjuster lets you dial in the exact closed height on-site without changing the cylinder.
Pushes parts down a 800 mm lane. Fine-tune the extend stop by up to 30 mm to accommodate different product lengths on the fly.
Swings a diverter arm into a high overhead lane. The compact JIS profile saves valuable vertical headroom compared to standard ISO 15552 units.
Size this 50 mm bore against its neighbours: a 40 mm gives 628 N push at 0.5 MPa, while a 63 mm jumps to 1559 N. The JSIJ series mounts via Basic, FA, LB, TC, TCM1, or TCM2 brackets. Because this is a no-magnet SKU, you cannot fit position sensors; choose an -S variant if you need CMSE or DMSE switches. The 800 mm stroke is substantial, so always support the load with an external guide to prevent rod bending and side-load damage. The adjustable stroke is ideal for sharing one spare across multiple stroke variants or finalizing end positions during machine commissioning.
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 air port is G1/4.
The nominal 800 mm stroke is the maximum. The external adjuster lets you shorten the extend stroke on-site by up to 30 mm, giving a usable extend range of 770-800 mm. The retract end is fixed, and the adjuster sets the end position rather than locking the load.
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