Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X60-20S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X60-20S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm bore and 60mm 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
- Stroke60 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM18×1.5
- CushionAdjustable, 20.5 mm
About the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X60-20S
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder is built for applications that demand exact end-position tuning on the floor. An external stop screw lets you shorten the extend stroke by up to 20 mm on site, giving a usable range of 40 to 60 mm without swapping the actuator. The retract end remains fixed. Because the nominal 60 mm stroke is the maximum, you can fine-tune the movement to hit a precise target. This safe working load handles about 589 N of real work, which translates to lifting roughly 50 kg vertically with a 2:1 margin.
The extruded hard-anodized aluminum barrel keeps the overall body shorter and more compact than a same-bore ISO 15552 cylinder. It features a G1/4 port, an M18x1.5 rod thread, and 20.5 mm adjustable air cushions at both ends to decelerate the piston smoothly. The -S suffix means a built-in piston magnet is included, allowing CMSE or DMSE sensors to drop directly into the side grooves for position detection. Note that a plain cylinder drifts on air loss; the cushion only decelerates, so fit an external rod lock or pilot-operated check valve if you need to hold a load.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X60-20S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X60-20S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 60 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 JSIJ50X60-20S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×60 | 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 JSIJ50X60-20S Is Used
Clamp Stroke Tuning
Dial in the exact clamping depth on a fixture by shortening the extend stroke up to 20 mm on site, preventing damage to delicate parts.
Transfer Gate Adjustment
Fine-tune the diversion gate extension length on a packaging line without physically removing or replacing the cylinder.
Short-Stop Sorting
Use the 40 to 60 mm usable range to actuate a short-stroke sorting paddle, adjusting the reach on the fly to handle varying package sizes.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X60-20S the Right Cylinder?
When sizing this actuator, compare it against the neighbouring 40 mm bore, which offers 628 N of push at 0.5 MPa, and the larger 63 mm bore, which provides 1559 N. The 50 mm bore sits perfectly in the middle for medium-duty tasks. The 20 mm adjustable window is especially useful when you want a single shared spare across slightly different stroke variants or need to dial in a final end position after mounting. You can choose from Basic, FA, LB, TC, TCM1, or TCM2 mounting styles. The integrated magnet supports CMSE/DMSE switches for precise sensing. Because the stroke is short at 60 mm, side-load risks are minimal, but always guide the load for any stroke over 300 mm.
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 JSIJ50X60-20S 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 adjustable air cushion at each end.
The external adjuster lets you shorten the extend stroke by up to 20 mm on site. The nominal 60 mm stroke is the maximum, so the usable extend range is 40 to 60 mm. The retract end is fixed. This mechanism sets the end position but does not lock the load; you still need an external rod lock or pilot-operated check valve to hold a load securely.
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