Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X450-30S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X450-30S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm bore and 450mm 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
- Stroke450 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM18×1.5
- CushionAdjustable, 20.5 mm
About the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X450-30S
Generating 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder is built for precise on-site stroke tuning. The external stop screw lets you shorten the extend stroke by up to 30 mm, giving a usable range of 420 to 450 mm without swapping the actuator. Its extruded hard-anodized aluminium barrel makes it shorter and more compact than a same-bore ISO 15552 cylinder. The G1/4 port and M18x1.5 rod thread keep pneumatic connections straightforward.
Because it carries the -S suffix, a built-in piston magnet is included for CMSE or DMSE reed and electronic switches that mount directly into the side grooves. In practical terms, it handles about 589 N of real work, which is roughly 50 kg lifted vertically with a 2:1 safety margin. The retract end remains fixed, and the adjustable air cushions at both ends decelerate the load smoothly over the 20.5 mm cushion zone.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X450-30S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X450-30S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 450 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 JSIJ50X450-30S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×450 | 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 JSIJ50X450-30S Is Used
Transfer Push-Off
Fine-tunes the push-off distance on a moving conveyor by dialing the extend stroke back from 450 mm to exactly 420 mm to match varying package widths.
Press Positioning
Adjusts the downward extend end-point on-site for a light pressing task, ensuring the 50 kg vertical working load is applied accurately without reprogramming the motion controller.
Pallet Diverting
Uses the -S magnet and CMSE sensors to confirm mid-stroke positions while the external adjuster sets the exact reach for diverting different pallet sizes.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X450-30S the Right Cylinder?
When sizing this actuator, the 50 mm bore sits comfortably between the 40 mm option, which provides 628 N of push at 0.5 MPa, and the 63 mm version, which delivers 1559 N. The 30 mm adjustable window is ideal for sharing a single spare across multiple stroke variants or fine-tuning the end position during machine commissioning. You can mount it using the FA, LB, TC, TCM1, or TCM2 brackets. Since the stroke is 450 mm, always use an external guide rail to prevent rod bending and 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 JSIJ50X450-30S 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 model uses a G1/4 air port.
The external stop screw lets you shorten the extend stroke on-site by up to 30 mm, giving a usable extend range of 420 to 450 mm. The nominal 450 mm stroke is the maximum, and the retract end is fixed. This stop only sets the end position; it is not a load lock.
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