
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X1000-20 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 1000mm stroke, G1/4 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 628 N of push force at 0.5 MPa, this 40 mm bore JIS actuator brings on-site extend tuning to long-stroke automation. The external adjuster lets you shorten the extend stroke by up to 20 mm, giving a usable range of 980-1000 mm without swapping the cylinder. It handles about 377 N of real work safely, which translates to lifting roughly 32 kg vertically with a 2:1 margin. Built with an extruded hard-anodized aluminum profile barrel, the body is noticeably shorter and more compact than a same-bore ISO 15552 unit.
This double-acting single-rod model uses a G1/4 port and a 16 mm rod with an M14x1.5 thread. Because this specific SKU lacks the -S magnet option, it cannot accept CMSE or DMSE sensors. The adjustable air cushions at both ends only decelerate the piston near stroke end; they do not hold the load. For vertical or suspended loads that must resist drift on air loss, fit an external rod lock or pilot-operated check valve.
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X1000-20 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 1000 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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, 20.5 mm |
| Max standard stroke | Up to 1200 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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). |
|---|---|
| 40 | 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.
Fine-tune the 1000 mm extend stop by up to 20 mm on-site to perfectly align a diverting gate without machining new mounts.
Keep one adjustable cylinder on the shelf to cover various 980-1000 mm stroke requirements across different packaging lines.
Lower assemblies using the 628 N thrust, relying on external guides to manage side loads over the long 1000 mm extension.
When sizing this 40 mm bore, the adjacent 32 mm bore offers 402 N push at 0.5 MPa for lighter duties, while the 50 mm bore steps up to 982 N if your payload increases. The 20 mm adjustable window is ideal for sharing a spare across slightly different stroke variants or fine-tuning the end position during machine commissioning. JSIJ mounting choices include Basic, FA, LB, TC, TCM1, and TCM2. At a 1000 mm stroke, always support the load with external guides to prevent rod bending and excessive side loading. Remember that a plain non-magnetic SKU cannot host position sensors.
Quick checklist
At 0.5 MPa it provides 628 N push and 528 N pull. At 0.7 MPa it provides 879 N push and 739 N pull. The theoretical maximum force is 128 kgf at 1.0 MPa. This 40 mm bore model features a G1/4 air port.
The external adjuster allows you to shorten the extend stroke by up to 20 mm on-site, yielding a usable extend range of 980-1000 mm. The nominal 1000 mm stroke is the maximum, and the retract end remains fixed. This mechanism sets the end position and does not lock the load.
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