
The AirTAC JSIJ32~50 Adjustable Cylinder JSIJ32X250-50S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø32mm bore and 250mm stroke, G1/8 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.
The hard-anodized aluminum profile body is notably shorter than a same-bore ISO 15552 unit, saving valuable machine space. A built-in piston magnet comes standard, allowing CMSE or DMSE switches to drop directly into the side grooves for precise position detection.
The external stop screw lets you shorten the extend stroke by up to 50 mm on-site, giving a usable range of 200 to 250 mm without changing the cylinder itself. This makes it ideal for fine-tuning end positions or standardizing a shared spare across stroke variants.
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ32X250-50S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 250 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 mm |
| Max standard stroke | Up to 1000 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 | 346 N | 346 N |
| 0.7 MPa | 484 N | 484 N |
| Max (@1.0 MPa) | 70 kgf | |
JSIJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative).
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 32 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×250 | 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.
Fine-tune the extend position of a small clamping jaw on-site by dialing the 50 mm window, avoiding mechanical redesign.
Keep one 250 mm cylinder in stock and adjust it down to 200 mm to cover multiple stroke variants across a packaging line.
Fit the short JIS profile body into tight transfer stations to push light 20 kg product loads between belts.
The adjustable stroke is a major advantage when you need to tune end positions in the field or want one spare to cover slight stroke variations. Mounting options include FA, LB, TC, TCM1, and TCM2. The -S suffix means the magnet is already present for sensors. Because the stroke is 250 mm, ensure adequate side-load guidance to prevent rod binding.
Quick checklist
This 32 mm bore cylinder uses a G1/8 port.
An external stop screw shortens the extend stroke by up to 50 mm on-site, giving a usable range of 200 to 250 mm. The nominal 250 mm is the maximum, and the retract end remains fixed. This mechanism sets the end position and is not a load lock.
Genuine AirTAC parts produced by AirTAC factory.
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