Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-30S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-30S 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 JSIJ50X50-30S
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder brings on-site extend tuning to mid-range pneumatics. The hard-anodized aluminium barrel makes it shorter and more compact than a same-bore ISO 15552 unit, while the G1/4 port keeps air flow responsive across the 30-800 mm/s speed range.
The external stop screw provides a 30 mm adjustment window, letting you shorten the 50 mm extend stroke down to 20 mm without changing the hardware. This mechanism handles about 589 N of real work safely, lifting roughly 50 kg vertically with a 2:1 margin. The built-in magnet (-S) supports CMSE/DMSE sensors in the side grooves, and the retract end remains fixed.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-30S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-30S |
|---|---|
| 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 JSIJ50X50-30S
| 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 JSIJ50X50-30S Is Used
Clamp Stroke Tuning
Dial in the exact 20 to 50 mm extend reach on a machining fixture to clamp parts of varying heights without swapping cylinders.
Variable Sealing Press
Adjust the extend endpoint on the fly to seal cartons of different depths, using the 30 mm window to prevent crushing.
Sensor Equipped Sorting
Leverage the -S magnet and CMSE/DMSE switches to confirm mid-stroke positions while routing parts on a compact assembly line.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-30S the Right Cylinder?
Size this 50 mm bore against the 40 mm (628 N push at 0.5 MPa) and 63 mm (1559 N) options to match your pressure limits. The 30 mm adjuster is ideal for sharing one spare across multiple stroke variants or fine-tuning the end position after mounting. Choose from Basic, FA, LB, TC, TCM1, or TCM2 mounts, and use the -S magnet for CMSE/DMSE position sensing. Because the nominal stroke is only 50 mm, side-load guides are less critical here than on long-stroke units, but always guide the load for smooth operation.
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 JSIJ50X50-30S FAQ
At 0.5 MPa it pushes 982 N and pulls 825 N. At 0.7 MPa it pushes 1374 N and pulls 1154 N. The theoretical maximum is 200 kgf at 1.0 MPa. It uses a G1/4 air port and features a 20 mm piston rod with an M18x1.5 rod-end thread.
The nominal 50 mm extend stroke is the maximum. An external stop screw lets you shorten the extend stroke by up to 30 mm on site, giving a usable extend range of 20 to 50 mm. The retract end is fixed. This stop sets the end position and is not a load lock; use an external rod lock or pilot-operated check valve to hold a load.
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