Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X350-50
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X350-50 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 JSIJ50X350-50
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder brings on-site extend tuning to long-stroke tasks. The extruded hard-anodized aluminium barrel omits tie rods entirely, making the body shorter and more compact than a same-bore ISO 15552 unit. It handles about 589 N of real work safely, which translates to roughly 50 kg lifted vertically with a 2:1 margin.
A 50 mm external stop screw window lets you trim the 350 mm maximum extend stroke down to 300 mm without swapping the actuator, while the retract end stays fixed. Air connects via a G1/4 port, and adjustable 20.5 mm cushions decelerate the load at both ends. Note this SKU lacks a magnet, so it cannot take CMSE or DMSE sensors.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X350-50 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X350-50 |
|---|---|
| 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 JSIJ50X350-50
| 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 JSIJ50X350-50 Is Used
Sorter Diverter Tuning
Dial in the exact 300 to 350 mm push distance for a package diverter arm without machining new hard stops.
Press Standby Position
Shorten the extend stroke by 50 mm to set a precise waiting gap before a secondary clamping operation.
Pallet Stopper Gate
Adjust the end position on-site to accommodate different pallet depths while keeping the retract end fixed.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X350-50 the Right Cylinder?
Size this 50 mm bore against its neighbours: a 40 mm gives 628 N push at 0.5 MPa, while a 63 mm jumps to 1559 N. The JSIJ series supports Basic, FA, LB, TC, TCM1, and TCM2 mounts. The -50 mm adjuster is perfect for sharing one spare across slightly different stroke machines or dialling in final end positions on-site. Because the stroke is 350 mm, always use an external guide to prevent rod bending under side loads. For position feedback, select the -S variant for CMSE/DMSE sensors.
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 JSIJ50X350-50 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 force is 200 kgf at 1.0 MPa.
The nominal 350 mm extend stroke is the maximum. An external stop screw lets you shorten the extend stroke by up to 50 mm on-site, giving a usable range of 300 to 350 mm. The retract end is fixed, and this stop is for positioning only, not load holding.
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