Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X900-20S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X900-20S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm bore and 900mm 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
- Stroke900 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 JSIJ50X900-20S
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS actuator brings on-site flexibility to long-stroke automation. The hard-anodized aluminum profile barrel keeps the overall body shorter and more compact than a same-bore ISO 15552 cylinder. A built-in piston magnet (-S) allows CMSE or DMSE switches to drop directly into the side grooves for precise position detection.
The external adjuster provides a 20 mm shortening window for the extend stroke, meaning the usable forward travel spans 880 to 900 mm while the retract end remains fixed. You can fine-tune the end position without physically swapping the cylinder. It handles about 589 N of real work safely, which translates to lifting roughly 50 kg vertically with a 2:1 margin. Pneumatic connections use a G1/4 port, and adjustable air cushions of 20.5 mm at each end absorb kinetic energy near the stroke limits.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X900-20S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X900-20S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 900 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 JSIJ50X900-20S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×900 | 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 JSIJ50X900-20S Is Used
Long-Transfer Pushing
Moves workpieces down a 900 mm line with the 20 mm extend window allowing exact alignment against a downstream stop without re-mounting hardware.
Vertical Material Lift
Raises a 50 kg payload using the 0.5 MPa thrust class, relying on external linear guides to keep the 900 mm rod stable during the vertical travel.
Adjustable Pallet Stop
Acts as a floor-track stopper where the 880-900 mm reach is fine-tuned on-site to accommodate pallet depth variations via the external adjuster.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X900-20S the Right Cylinder?
When sizing this actuator, the 50 mm bore sits comfortably between the lighter 40 mm option (628 N push at 0.5 MPa) and the heavier 63 mm class (1559 N push at 0.5 MPa). The 20 mm adjustable extend window is ideal if you need to share a spare cylinder across slightly different stroke variants or dial in a final end position on the machine. JSIJ mounting choices include Basic, FA, LB, TC, TCM1, and TCM2 styles. Because this is a 900 mm stroke, you must support the load with external guides to prevent rod bending and side-load damage. The -S magnet is already integrated for your sensing needs.
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 JSIJ50X900-20S 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. The air port size is G1/4.
The nominal 900 mm stroke is the maximum forward travel. The external adjuster lets you shorten the extend stroke by up to 20 mm on-site, giving a usable range of 880 to 900 mm. The retract end is fixed. This mechanism sets the end position and does not lock the load.
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Standard models are processed and dispatched in 3-5 business days.
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