
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X25-10 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 25mm stroke, G3/8 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 barrel keeps the build clean without external tie rods. A G3/8 port feeds the double-acting double-rod piston, while adjustable air cushions of 29 mm absorb end impacts.
The -10 suffix means an external stop screw lets you shorten the extend stroke on-site by up to 10 mm, dropping the usable forward travel from the 25 mm maximum down to 15 mm for fine position tuning without swapping the cylinder. The retract end remains fixed. This SKU lacks a magnet, so it cannot take a CMSE or DMSE sensor. Note that the cushion only decelerates; use an external rod lock or pilot-operated check valve if you need to hold a load on air loss.
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X25-10 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 25 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | G3/8 |
| 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, 29 mm |
| Max standard stroke | Up to 1500 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 | 1402 N | 1402 N |
| 0.7 MPa | 1962 N | 1962 N |
| Max (@1.0 MPa) | 286 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). |
|---|---|
| 63 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×25 | 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.
Tunes the final 15 to 25 mm clamping contact point on-site via the external adjuster to compensate for varying material thicknesses.
Acts as a compact JIS-profile stop gate that fits into tight conveyor frames, using the 10 mm window to dial in the exact stopping height.
The 10 mm adjustable window is ideal when you need to tune a short final position on-site or want one shared spare across slight stroke variants. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. Because this is a non-magnet SKU, you cannot fit position sensors; order the -S version if your circuit needs CMSE or DMSE switches. Even at this 25 mm stroke, ensure adequate guiding if the payload imposes side loads.
Quick checklist
This 63 mm bore cylinder uses a G3/8 port and a 20 mm rod with an M18x1.5 thread.
The nominal stroke is 25 mm, which is the maximum extend travel. The external adjuster lets you shorten that forward stroke by up to 10 mm on-site, giving a usable extend range of 15 to 25 mm. The retract end is fixed, and this stop mechanism only sets the end position rather than locking the load.
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