Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-50S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-50S 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 JSIJ50X50-50S
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder saves valuable machine space because its hard-anodized aluminum barrel is noticeably shorter than a same-bore ISO 15552 unit. The integrated piston magnet supports CMSE/DMSE switches that mount directly into the side grooves, giving you reliable position feedback without extra brackets.
The -50 code means an external adjuster can shorten the extend stroke on-site by up to 50 mm, letting you fine-tune the end position without swapping the cylinder. With a 0 to 50 mm usable extend window and a G1/4 port, it handles a safe working load of about 589 N, which is roughly 50 kg lifted vertically with a 2:1 margin. The retract end remains fixed, and the adjustable air cushions decelerate the load smoothly.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-50S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-50S |
|---|---|
| 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 JSIJ50X50-50S
| 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 JSIJ50X50-50S Is Used
Clamp Stroke Tuning
Dial in the exact clamping contact point on machined parts by adjusting the extend stroke on-site within the 50 mm window.
Variable Transfer Stops
Act as a raised stop on a conveyor line where product sizes change, allowing operators to shorten the extend stroke without replacing the cylinder.
Compact Sorting Diverter
Fit into tight sorting chutes thanks to the short JIS profile barrel, using the built-in magnet to confirm the diverted position.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-50S the Right Cylinder?
When sizing this unit, the 63 mm bore steps up to 1559 N push at 0.5 MPa, while the 40 mm bore drops to 628 N, so the 50 mm bore is ideal for medium-duty tasks. The 50 mm adjustable window is especially useful when you want to share one spare cylinder across several stroke variants or dial in a precise end stop on-site. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. The -S suffix ensures you have the magnet for electronic or reed sensors. For any stroke length at or above 300 mm, always use a guide rail to prevent side-load damage.
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 JSIJ50X50-50S 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 external adjuster lets you shorten the extend stroke by up to 50 mm on-site, meaning the usable extend range is 0 to 50 mm while the nominal 50 mm is the maximum. The retract end is fixed. This mechanism sets the end position and does not hold the load.
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Standard models usually ship in 3-4 days.
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