Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X75-75
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X75-75 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm bore and 75mm 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
- Stroke75 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM18×1.5
- CushionAdjustable, 20.5 mm
About the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X75-75
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder features an external adjuster that shortens the extend stroke on-site by up to 75 mm. The nominal 75 mm stroke represents the maximum travel, allowing you to fine-tune the end position without swapping the actuator. It handles about 589 N of real work safely, which translates to lifting roughly 50 kg vertically with a 2:1 margin.
Built with an extruded hard-anodized aluminum barrel, the unit is noticeably shorter and more compact than an ISO 15552 cylinder of the same bore. It uses a G1/4 port and a 20 mm rod. This specific SKU lacks a magnet and cannot accept CMSE/DMSE sensors; you would need the -S variant for position detection. Note that the air cushion only decelerates the piston near the ends, so an external rod lock or pilot-operated check valve is required to hold a load securely.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X75-75 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X75-75 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 75 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 JSIJ50X75-75
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×75 | 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 JSIJ50X75-75 Is Used
Press Fit Tuning
Adjusts the extend end-position on-site to set precise insertion depths for light-duty press fits without changing the actuator body.
Variable Stopper Arm
Acts as a retractable stop on a conveyor line, letting operators dial the exact 0 to 75 mm protrusion distance needed for different product sizes.
Sealing Head Stroke
Fine-tunes the downward extend travel of a heat-sealing head to accommodate varying package thicknesses on the fly.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X75-75 the Right Cylinder?
When sizing this model, the 40 mm bore offers 628 N push at 0.5 MPa for lighter duties, while the 63 mm bore steps up to 1559 N if you need more thrust. The -75 mm adjust window is especially useful when you want a shared spare across slightly different stroke variants or need precise on-site end-position tuning. JSIJ mounting options include FA, LB, TC, TCM1, and TCM2. Because this is a no-magnet SKU, it cannot take a sensor. For any stroke length of 300 mm or more, always use a guide rail to prevent excessive side loading on the rod.
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 JSIJ50X75-75 FAQ
This 50 mm bore cylinder pushes 982 N and pulls 825 N at 0.5 MPa. At 0.7 MPa it pushes 1374 N and pulls 1154 N. The theoretical maximum force is 200 kgf at 1.0 MPa. It uses a G1/4 air port.
The external adjuster lets you shorten the extend stroke on-site by up to 75 mm from the nominal maximum. The retract end remains fixed. This mechanism only sets the end position and does not lock the load; you need an external rod lock or pilot-operated check valve to hold a load against air loss.
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