Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X350-75
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X350-75 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 JSIJ50X350-75
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder is built for applications needing exact end-position tuning. An external adjuster lets you shorten the extend stroke on-site by up to 75 mm, giving a usable range of 275 to 350 mm while the retract end stays fixed. The hard-anodized aluminum barrel keeps the overall body more compact than a same-bore ISO 15552 unit. It handles a safe working load of about 589 N, which is roughly 50 kg lifted vertically with a 2:1 margin.
Air connects via a G1/4 port, driving the 20 mm rod at speeds of 30-800 mm/s with 20.5 mm adjustable air cushions at both ends. Because this specific SKU lacks the -S magnet option, it cannot accept CMSE or DMSE sensors. Note that the adjustable stop sets the end position but does not lock the load; you will need an external rod lock or pilot-operated check valve to hold a load securely against air loss.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X350-75 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X350-75 |
|---|---|
| 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 JSIJ50X350-75
| 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 JSIJ50X350-75 Is Used
Divert Gate Tuning
Fine-tune the extend reach of a sorting diverter on-site by up to 75 mm to accommodate different package widths without remounting the cylinder.
Clamp Position Adjustment
Dial in the exact clamping depth on a machining fixture, using the 275 to 350 mm window to compensate for varying part tolerances.
Pallet Stop Calibration
Adjust the stopping point of a pallet on a roller conveyor by shortening the extend stroke, ensuring precise alignment before wrapping.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X350-75 the Right Cylinder?
When sizing this unit, compare it against neighbouring bores: the 40 mm bore gives 628 N of push at 0.5 MPa, while the 63 mm bore jumps to 1559 N, so the 50 mm sits perfectly in the middle for moderate-force tasks. The -75 mm adjustable window is highly useful for sharing one spare cylinder across several stroke variants or fine-tuning the extend end on the machine without swapping the whole body. You can mount it using FA, LB, TC, TCM1, or TCM2 brackets. Because the 350 mm stroke is relatively long, always use an external guide rail to prevent rod bending and side-load damage. Remember that a no-S SKU like this cannot support magnetic sensing.
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 JSIJ50X350-75 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 air port size is G1/4.
The nominal 350 mm stroke is the maximum. An external stop screw lets you shorten the extend stroke on-site by up to 75 mm, giving a usable extend range of 275 to 350 mm. The retract end is fixed, and this mechanism only sets the end position rather than holding the load.
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