Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-50
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-50 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 JSIJ50X50-50
Generating 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder features a 50 mm nominal stroke that can be shortened on-site by up to 50 mm. An external stop screw lets you fine-tune the extend end position without swapping the actuator, while the retract end remains fixed. The hard-anodized aluminum barrel makes it shorter and more compact than a same-bore ISO 15552 unit. It handles about 589 N of real work safely, which translates to lifting roughly 50 kg vertically with a 2:1 margin.
This double-acting single-rod actuator uses a G1/4 port and an M18x1.5 rod thread. It includes adjustable air cushions of 20.5 mm at both ends to decelerate the load smoothly. Note this specific SKU lacks a magnet and cannot accept CMSE or DMSE sensors; for that capability, specify the -S variant. The stop screw sets end position only and does not hold the load on air loss.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-50 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-50 |
|---|---|
| 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 JSIJ50X50-50
| 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 JSIJ50X50-50 Is Used
Press Fit Tuning
Dial in the exact insertion depth of a bearing press by adjusting the extend stroke on-site, ensuring perfect seating without remounting the cylinder.
Variable Length Diverter
Adjust the reach of a sorting gate on a packaging line to handle different box sizes, using the 50 mm extend window to reposition the stop quickly.
Shared Spare Actuator
Keep one cylinder as a universal replacement for 20 mm to 50 mm stroke machines, shortening the extend as needed to get a stalled line running fast.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-50 the Right Cylinder?
For sizing, the neighboring 40 mm bore yields 628 N push at 0.5 MPa, while the 63 mm bore provides 1559 N, giving you clear steps if this 982 N unit is over or under-powered. The 50 mm adjustable window is highly useful when you need to sync end positions across multiple stations or standardize a single spare part for slightly different stroke needs. You can mount it using basic, FA, LB, TC, TCM1, or TCM2 brackets. Because this is a non-magnet SKU, position sensing is not possible. For any application approaching a 300 mm stroke or longer, 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 JSIJ50X50-50 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 model uses a G1/4 air port and features a 20 mm rod with an M18x1.5 thread.
The nominal 50 mm stroke is the maximum extend length. An external adjuster screw lets you shorten the extend stroke by up to 50 mm on-site, allowing you to set the exact end position without changing the cylinder. The retract end is fixed. This mechanism only sets position; it does not lock the load, so you need an external rod lock or pilot-operated check valve to hold a load against air loss.
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