
The AirTAC Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X1000-10 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø125mm bore and 1000mm 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.
Delivering 6136 N of push force at 0.5 MPa, this 125 mm bore JIS profile cylinder brings heavy-duty motion to applications needing exact end-position tuning. An external adjuster lets you shorten the extend stroke on-site by up to 10 mm, meaning the usable extension range is 990 to 1000 mm. The nominal 1000 mm stroke is the maximum, while the retract end remains fixed. This on-site tuning is ideal for dialing in a machine setup without physically swapping the actuator.
Built with an extruded hard-anodized aluminum barrel, the body is noticeably shorter and more compact than an ISO 15552 cylinder of the same bore. It handles about 3682 N of real work safely, which translates to roughly 313 kg lifted vertically with a 2:1 margin. The unit features a G1/2 port, an M27x2.0 rod thread, and adjustable air cushions of 33 mm at each end. Because this SKU lacks the -S magnet option, it cannot accept CMSE or DMSE sensors.
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X1000-10 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 1000 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| 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 – 500 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 | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×1000 | 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.
Raises loaded pallets in distribution hubs, using the 10 mm extend adjuster to fine-tune the exact discharge height at the conveyor transfer without changing the actuator.
Pushes heavy stamped parts out of a hydraulic press, relying on the 6136 N thrust at 0.5 MPa and the 33 mm adjustable cushions to absorb impact at the end of a long travel.
Actuates multi-level shuttle doors on an automated storage crane, dialing in the precise closed seal position via the external stop screw during commissioning.
When sizing this actuator, stepping down to an 80 mm bore yields 2513 N push at 0.5 MPa, while this 125 mm bore provides 6136 N at the same pressure, defining the upper force edge of the series. The 10 mm adjustable extend window is highly useful for sharing a spare cylinder across slightly different stroke variants or fine-tuning a final stop on-site. Mounting choices include Basic, FA, LB, TC, TCM1, and TCM2. Because the stroke is 1000 mm, you must support the load with external guides to prevent rod bending and side-load damage. A plain cylinder drifts on air loss, so add an external rod lock or pilot-operated check valve if the load must be held.
Quick checklist
At 0.5 MPa it pushes 6136 N and pulls 5734 N. At 0.7 MPa it pushes 8590 N and pulls 8028 N. The theoretical maximum force is 1251 kgf at 1.0 MPa. It operates between 0.15 and 1.0 MPa, has a proof pressure of 1.5 MPa, and runs at 30-500 mm/s. The bore is 125 mm, the port is G1/2, and the rod thread is M27x2.0.
The -10 code means an external stop screw lets you shorten the extend stroke by up to 10 mm on-site. The usable extend range is 990 to 1000 mm, with the 1000 mm nominal stroke acting as the maximum. The retract end is fixed. This mechanism sets the end position and does not lock the load; you still need a rod lock or check valve to hold a load vertically.
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