Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X350-10S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X350-10S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm bore and 350mm 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
- Stroke350 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM18×1.5
- CushionAdjustable, 20.5 mm
About the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X350-10S
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder features a hard-anodized aluminum barrel that is noticeably shorter than a same-bore ISO 15552 unit. It includes a built-in piston magnet for CMSE/DMSE sensors and uses a G1/4 air port. The external stop screw lets you shorten the extend stroke on-site by up to 10 mm, meaning the usable extend range is 340-350 mm while the retract end stays fixed. This allows fine end-position tuning without swapping the cylinder. Factoring a 60% safety margin, it handles about 589 N of real work, which translates to lifting roughly 50 kg vertically with a 2:1 margin.
The adjustable air cushions provide 20.5 mm of deceleration at each end to absorb kinetic energy. Because this is a 350 mm stroke, you should support the load with external guides to prevent rod bending and excessive side loading. Keep in mind the stop screw sets the end position but does not act as a load lock; a plain cylinder drifts on air loss, so add an external rod lock or pilot-operated check valve if you need to hold a load securely.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X350-10S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X350-10S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 350 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 JSIJ50X350-10S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×350 | 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 JSIJ50X350-10S Is Used
Transfer Push-Off
Fine-tunes the 350 mm extend stroke by up to 10 mm to account for varying package widths on a conveyor push-off station without changing the cylinder.
Vertical Press
Leverages the 982 N push force at 0.5 MPa for light pressing duties, using the external stop screw to set a precise lower end position.
Divert Gate
Uses the built-in magnet and CMSE/DMSE sensors to confirm gate position, while the compact JIS profile saves valuable machine space.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X350-10S the Right Cylinder?
When sizing this unit, the 50 mm bore sits between the 40 mm option (628 N push at 0.5 MPa) and the 63 mm option (1559 N push at 0.5 MPa). The 10 mm adjustable window is ideal for sharing a spare across stroke variants or dialing in a final end position on-site. You can mount it using FA, LB, TC, TCM1, or TCM2 brackets. The -S suffix means the side grooves are ready for CMSE/DMSE reed or electronic switches. Because the stroke is 350 mm, always use external guides to manage side loads and prevent rod bending.
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 JSIJ50X350-10S 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. This 50 mm bore cylinder uses a G1/4 air port.
An external stop screw lets you shorten the extend stroke on-site by up to 10 mm. The nominal 350 mm stroke is the maximum, giving a usable extend range of 340-350 mm. The retract end is fixed, and the stop screw only sets the end position rather than locking the load.
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