
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X50-10 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 50mm 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 omits external rods, making the overall body shorter and more compact than a same-bore ISO 15552 unit. It uses a G3/8 port and an M18x1.5 rod thread.
The external adjuster lets you shorten the extend stroke by up to 10 mm on-site, dropping the usable travel from the 50 mm maximum down to 40 mm without swapping the cylinder. This fine-tunes the end position perfectly. Note that this non-magnet SKU cannot take a sensor; you need the -S version for CMSE or DMSE switches.
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-10 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 50 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). |
| ×50 | 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 crimp depth on a terminal press by trimming the extend stroke up to 10 mm on-site, ensuring perfect joints without machining new spacers.
Fine-tune the clamping endpoint on a machining fixture, shortening the 50 mm stroke by up to 10 mm to avoid crushing delicate aluminum castings.
When sizing this unit, the 50 mm bore steps down to 825 N pull at 0.5 MPa, while the 80 mm bore jumps up to 2268 N pull, giving you clear boundaries around this 1402 N pull class. The 10 mm adjuster is ideal when you need to tune the extend end-position on the machine or want a single shared spare across slightly different stroke variants. You can mount it via FA, LB, TC, TCM1, or TCM2 brackets. Because this specific SKU lacks the -S magnet, it cannot accept position sensors. For any application approaching or exceeding 300 mm of stroke, always guide the load to prevent side-load damage to the rod seals.
Quick checklist
At 0.5 MPa it pushes 1559 N and pulls 1402 N. At 0.7 MPa the push is 2182 N and pull is 1962 N. The theoretical maximum force is 318 kgf at 1.0 MPa. It features a 63 mm bore, a 20 mm rod, a G3/8 port, and a 29 mm adjustable air cushion at each end.
The nominal 50 mm stroke is the maximum travel. An external stop screw lets you shorten the extend stroke by up to 10 mm on-site, giving a usable range of 40 to 50 mm. The retract end remains fixed. This mechanism only sets the end position; it does not lock the load, so you need an external rod lock or pilot-operated check valve to hold a load against air loss.
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