Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X275-75S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X275-75S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm bore and 275mm 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
- Stroke275 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM18×1.5
- CushionAdjustable, 20.5 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X275-75S
Generating 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder delivers a 275 mm extend stroke that can be shortened by up to 75 mm on site. An external stop screw lets you fine-tune the extend end position without swapping the actuator, giving a usable extend range of 200-275 mm while the retract end stays fixed. The hard-anodized aluminum 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 safe working load, which means you can lift roughly 50 kg vertically with a 2:1 safety margin. The G1/4 air port feeds the double-acting single-rod piston, and the built-in magnet (-S) supports CMSE/DMSE sensors.
Air cushions at both ends provide 20.5 mm of deceleration to protect your mechanics, but remember the cushion only slows the piston near stroke end. A plain cylinder does not hold a load on air loss or when the valve is centered, so fit an external rod lock or pilot-operated check valve if you need to prevent drift. Operating pressure spans 0.15-1.0 MPa across a -20 to +70 C range, with a speed of 30-800 mm/s.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X275-75S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X275-75S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 275 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 JSIJ50X275-75S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×275 | 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 JSIJ50X275-75S Is Used
Press Fit Tuning
Dial in the exact 200-275 mm extend position for seating bearings without machining custom spacers or changing the cylinder.
Variable Length Diverter
Adjust the extend stop on site to deflect different package sizes on a line, using the 75 mm window to shift the gate position.
Vertical Lift Stop
Lift a 50 kg payload and fine-tune the upper stop precisely, relying on the 982 N push force at 0.5 MPa to raise the load smoothly.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X275-75S the Right Cylinder?
This 50 mm bore sits in the mid-range, pushing 982 N at 0.5 MPa. If you need less force, the 40 mm bore offers 628 N; if your load is heavier, step up to the 63 mm bore for 1559 N. The 75 mm adjustable window is ideal when you need to tune the extend end position on the fly or want a single shared spare for slightly different stroke variants. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2. Because the stroke is 275 mm, ensure you guide the load to prevent side-load bending on the 20 mm rod. The -S magnet means you can drop CMSE/DMSE reed or electronic switches directly into the side sensor grooves.
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 JSIJ50X275-75S 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 max force is 200 kgf at 1.0 MPa. The air port is G1/4.
The nominal 275 mm stroke is the maximum. An external stop screw lets you shorten the extend stroke by up to 75 mm on site, giving a usable extend range of 200-275 mm. The retract end is fixed, and the stop sets end position rather than locking the load.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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