
The AirTAC JSIJ32~50 Adjustable Cylinder JSIJ32X300-20S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø32mm bore and 300mm 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.
Its hard-anodized aluminum extruded barrel makes it shorter and more compact than a same-bore ISO 15552 unit, while the G1/8 port keeps pneumatic connections small.
The external adjuster lets you shorten the extend stroke on-site by up to 20 mm, giving a usable range of 280-300 mm without changing the cylinder itself. The built-in magnet (-S) supports CMSE/DMSE sensors in the side grooves.
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ32X300-20S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 300 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). |
| ×300 | 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 by up to 20 mm on-site to dial in exact clamping depth without swapping cylinders.
Fits into tight conveyor frames thanks to the short JIS profile, adjusting the push stroke to match various package sizes.
The adjustable stroke is ideal for sharing a spare across stroke variants or fine-tuning the end position on-site. Mounting options include FA, LB, TC, TCM1, and TCM2. Because the stroke is 300 mm, use an external guide to prevent rod bending and manage side loads. The -S magnet enables position sensing.
Quick checklist
This 32 mm bore cylinder pushes 402 N and pulls 345 N at 0.5 MPa. At 0.7 MPa it pushes 563 N and pulls 483 N. The theoretical max force is 82 kgf at 1.0 MPa. It uses a G1/8 air port.
The -20 code means an external adjuster can shorten the extend stroke by up to 20 mm on-site. The usable extend range is 280-300 mm, with 300 mm being the maximum nominal stroke. The retract end is fixed, and the adjuster sets the end position rather than locking the load.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.