Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X150-75S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X150-75S 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.
- BoreØ40 mm
- Stroke150 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM14×1.5
- CushionAdjustable, 20.5 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X150-75S
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder uses an external adjuster to shorten the extend stroke on-site by up to 75 mm. The 150 mm nominal stroke remains the maximum travel, yielding a usable extend range of 75 to 150 mm while the retract end stays fixed. Built with an extruded hard-anodized aluminium barrel, the body is noticeably shorter and more compact than a same-bore ISO 15552 unit.
The integrated -S piston magnet accepts CMSE/DMSE reed or electronic switches that mount directly into the side grooves. Pneumatic connections use a G1/4 port. Factoring a 60 percent safety margin, the cylinder handles about 377 N of real work, which translates to lifting roughly 32 kg vertically. Note that a standard cylinder does not hold load on air loss; the adjustable cushion only decelerates near the ends, so fit an external rod lock or pilot-operated check valve for suspended loads.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X150-75S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X150-75S |
|---|---|
| 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).
Theoretical Output Force (Ø40mm)
| 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.
Model Code: Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X150-75S
| 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.
Where the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X150-75S Is Used
Variable Stroke Clamping
Dial in the exact clamping distance on-site using the 75 mm extend window to accommodate different part widths on a single fixture.
Adjustable Transfer Stop
Set the precise stop position for varying package sizes on a line, shortening the extend stroke from the 150 mm maximum as needed.
Compact Sorting Diverter
Fit the shorter JIS profile body into tight conveyor gaps while using the magnet switches to confirm the diverter arm position.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X150-75S the Right Cylinder?
When sizing, step down to a 32 mm bore for lighter loads (402 N push at 0.5 MPa) or up to a 50 mm bore for heavier duty (982 N push at 0.5 MPa). The 75 mm adjuster window is ideal for fine-tuning the extend end position on-site without swapping the cylinder, letting you standardize one spare across multiple stroke variants. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. The -S magnet enables position sensing. For any stroke at or above 300 mm, always use a guide rail to prevent side-load damage to the rod seals.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X150-75S FAQ
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. The air port size is G1/4.
The 150 mm nominal stroke is the maximum travel. An external stop screw lets you shorten the extend stroke on-site by up to 75 mm, giving a usable extend range of 75 to 150 mm. The retract end is fixed, and this mechanism sets the end position rather than acting as a load lock.
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