Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-40S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-40S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm bore and 50mm 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.
- BoreØ50 mm
- Stroke50 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM18×1.5
- CushionAdjustable, 20.5 mm
About the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-40S
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder saves valuable machine space because its extruded hard-anodized aluminium barrel is noticeably shorter than a same-bore ISO 15552 unit. The integrated -S piston magnet allows CMSE or DMSE switches to drop directly into the side grooves for precise position detection.
A built-in external adjuster lets you trim the extend stroke on-site by up to 40 mm, giving a usable forward range of 10 to 50 mm while the retract end remains fixed. You can fine-tune the end position without physically swapping the cylinder, and the G1/4 port keeps pneumatic plumbing simple. Factoring a safety margin, it handles about 589 N of real work, which translates to lifting roughly 50 kg vertically.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-40S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-40S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 50 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/4 |
| Rod thread | M18×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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 JSIJ50X50-40S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×50 | 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 JSIJ50X50-40S Is Used
Tooling Stroke Trim
Dial in the exact 10 to 50 mm clamping reach on machining fixtures without machining new spacers or changing the actuator body.
Dynamic Diverter Gate
Adjust the pusher arm extension on the fly to accommodate different package sizes moving down a packaging line.
Compact Vertical Lift
Lift roughly 50 kg loads vertically in tight transfer stations where the shorter JIS profile footprint is required.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-40S the Right Cylinder?
This 50 mm bore sits neatly between the 40 mm class (628 N push at 0.5 MPa) and the 63 mm class (1559 N push), giving you a clear upgrade path if load requirements shift. The 40 mm adjuster window is ideal when you need to tune the extend end-point on the floor or want a single shared spare across slightly different stroke variants. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. Because the -S magnet is present, you can fit CMSE/DMSE sensors directly. For any stroke length at or above 300 mm, always guide the load 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 JSIJ50X50-40S FAQ
At 0.5 MPa it provides 982 N push and 825 N pull. At 0.7 MPa it provides 1374 N push and 1154 N pull. The theoretical maximum force is 200 kgf at 1.0 MPa. The air port size is G1/4.
The nominal 50 mm extend stroke is the maximum. An external stop screw lets you shorten the forward stroke by up to 40 mm on-site, yielding a 10 to 50 mm usable range while the retract end stays fixed. This mechanism only sets the end position; it does not hold the load on air loss. For load holding, use an external rod lock or pilot-operated check valve.
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