
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X150-40 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 150mm 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.
Generating 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder features an on-site extend-shortening window of 40 mm. The external adjuster allows the usable extend stroke to be fine-tuned between 110 and 150 mm without changing the cylinder itself, while the retract end remains fixed. Because it uses an extruded hard-anodized aluminum profile barrel, the overall build is shorter and more compact than a same-bore ISO 15552 cylinder. The G1/4 port and M14x1.5 rod thread keep pneumatic and mounting integration simple.
In practical terms, this actuator handles a safe working load of roughly 377 N, which equates to lifting about 32 kg vertically with a 2:1 margin. The adjustable air cushions at both ends provide 20.5 mm of deceleration to absorb impact. Note that this specific SKU lacks a magnet, so it cannot accept CMSE or DMSE sensors; order the -S variant if position detection is required. Furthermore, the cushion only decelerates the piston near stroke end and does not lock the load on air loss, so fit an external rod lock or pilot-operated check valve for suspended loads.
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X150-40 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 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). |
| ×150 | 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 110 to 150 mm extend position on a machining fixture without swapping cylinders.
Pushes parts along a belt where the final travel distance needs occasional on-site adjustment.
Acts as an adjustable physical stop for varying pallet depths in a compact JIS footprint.
When sizing this model, the 40 mm bore provides 628 N push and 528 N pull at 0.5 MPa; stepping down to a 32 mm bore drops the push to 402 N, while moving up to a 50 mm bore increases it to 982 N. The 40 mm adjustable window is particularly useful when you need to share one spare cylinder across several stroke variants or fine-tune the end position on-site. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2 brackets. Because this is a non-magnetized SKU, it cannot host position sensors. For any stroke length of 300 mm or more, always use a guide rail to prevent side-load damage to the piston rod.
Quick checklist
At 0.5 MPa it delivers 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. It features a 16 mm rod, a G1/4 port, M14x1.5 rod thread, and 20.5 mm adjustable air cushions at both ends.
The nominal stroke is 150 mm, which is the maximum extend length. The external adjuster lets you shorten the extend stroke on-site by up to 40 mm, yielding a usable range of 110 to 150 mm. The retract end remains fixed. This mechanism sets the end position and does not lock the load.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
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