
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X225-20 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 225mm stroke, G1/2 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 aluminium barrel keeps the assembly light, while the G1/2 port feeds the 32 mm rod for high flow and stable thrust.
The -20 code defines a 20 mm external adjuster window, letting you shorten the extend stroke on-site down to 205 mm without swapping the cylinder. The retract end remains fixed, and the stop screw sets the end position rather than locking the load. This base SKU has no magnet and cannot take a CMSE or DMSE sensor. Adjustable 33 mm air cushions at both ends absorb kinetic energy, but a plain cylinder drifts on air loss, so fit an external rod lock or pilot-operated check valve for held loads.
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X225-20 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 225 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | G1/2 |
| Rod thread | M26×1.5 |
| 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, 33 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 | 3525 N | 3525 N |
| 0.7 MPa | 4935 N | 4935 N |
| Max (@1.0 MPa) | 719 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). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×225 | 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 205 to 225 mm extend position on-site to accommodate different material thicknesses without changing the actuator.
The adjustable stroke is invaluable when you need to fine-tune an end position on the machine or want a single spare part that covers 205 to 225 mm variants. You can mount it via FA, LB, TC, TCM1 or TCM2 brackets. Because this SKU lacks the -S magnet, position sensing is impossible here. For this 225 mm stroke, always guide the load to prevent side-load wear on the rod seals.
Quick checklist
At 0.5 MPa it pushes 3927 N and pulls 3574 N. At 0.7 MPa it pushes 5497 N and pulls 5003 N. The theoretical maximum force is 801 kgf at 1.0 MPa. The cylinder uses a G1/2 port and a 32 mm rod.
The nominal 225 mm stroke is the maximum. The -20 code means an external adjuster lets you shorten the extend stroke on-site by up to 20 mm, giving a usable extend range of 205 to 225 mm. The retract end is fixed, and the adjuster sets the end position rather than acting as a load lock.
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.