Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X400-10S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X400-10S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm bore and 400mm 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
- Stroke400 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM18×1.5
- CushionAdjustable, 20.5 mm
About the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X400-10S
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS actuator brings on-site flexibility to long-stroke automation. The hard-anodized aluminium profile barrel keeps the overall body more compact than a same-bore ISO 15552 unit. It handles about 589 N of real work safely, which means you can lift roughly 50 kg vertically with a 2:1 margin.
The external stop screw lets you fine-tune the extend position, shortening the 400 mm nominal stroke by up to 10 mm without changing the cylinder itself, while the retract end stays fixed. A built-in piston magnet (-S) supports CMSE/DMSE sensors in the side grooves. Pneumatic connections use a G1/4 port, and adjustable air cushions of 20.5 mm decelerate the load at each end. Remember that the cushion only slows the piston; use an external rod lock or pilot-operated check valve if you need to hold a load on air loss.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X400-10S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X400-10S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 400 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 JSIJ50X400-10S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×400 | 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 JSIJ50X400-10S Is Used
Conveyor Diverter Trim
Fine-tune the 400 mm extend reach by up to 10 mm on-site to perfectly align a diverter gate without swapping the actuator.
Vertical Lift Positioning
Lifts approximately 50 kg using the 982 N push force, with the 10 mm window allowing precise top-end height adjustment.
Carton Sealing Stroke Set
Adjust the extend end position to accommodate varying package sizes on a single line using the external stop screw.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X400-10S the Right Cylinder?
When sizing this 50 mm bore, stepping down to a 40 mm bore drops the 0.5 MPa push force to 628 N, while stepping up to a 63 mm bore raises it to 1559 N. The -10 mm adjustable window is ideal for sharing one spare cylinder across slightly different stroke variants or finalizing end positions during machine commissioning. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. The -S magnet allows CMSE/DMSE switches for position confirmation. Because the 400 mm stroke is relatively long, always support the load with an external guide to prevent rod bending and excessive side loading.
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 JSIJ50X400-10S 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.
The nominal 400 mm stroke is the maximum. The external adjuster lets you shorten the extend stroke by up to 10 mm on-site, giving a usable range of 390-400 mm. The retract end is fixed. This mechanism sets the end position and does not lock the load.
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