Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X50-20S
The AirTAC Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X50-20S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø80mm bore and 50mm stroke, G3/8 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.
- BoreØ80 mm
- Stroke50 mm
- Port sizeG3/8
- Acting typeDouble acting, adjustable stroke
- Rod threadM22×1.5
- CushionAdjustable, 29 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 JSIJ63~80 Adjustable Cylinder JSIJ80X50-20S
Delivering 2513 N of push force at 0.5 MPa, this 80 mm bore JIS profile cylinder uses an external adjuster to shorten the extend stroke by up to 20 mm on site. The nominal 50 mm stroke remains the maximum travel, letting you fine-tune the end position without swapping the actuator. Its hard-anodized extruded aluminum barrel is noticeably shorter than an equivalent ISO 15552 build, saving machine space. The G3/8 port and M22x1.5 rod thread handle robust airflow, while the -S suffix adds a piston magnet for drop-in CMSE/DMSE sensors.
In practical terms, this model handles about 1508 N of real work safely, which translates to lifting roughly 128 kg vertically with a 2:1 margin. Adjustable air cushions at both ends decelerate the load smoothly over 29 mm. Remember that a plain cylinder does not hold load on air loss; the cushion only decelerates, so fit an external rod lock or pilot-operated check valve if you need strict position holding.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X50-20S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X50-20S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 50 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G3/8 |
| Rod thread | M22×1.5 |
| 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, 29 mm |
| Max standard stroke | Up to 1500 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X50-20S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 80 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×50 | 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 JSIJ63~80 Adjustable Cylinder JSIJ80X50-20S Is Used
Press Fit Tuning
Dial in the exact 30 to 50 mm extend position for seating bearings without machining custom spacers or changing the actuator body.
Variable Transfer Stops
Adjust the extend stop on-site to accommodate different package widths on a shared line, using the 20 mm shortening window.
Compact Lifting Jig
Lift 128 kg vertically using the 80 mm bore power, fitting the shorter JIS profile into tight automated storage retrieval cells.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X50-20S the Right Cylinder?
When sizing this 80 mm bore, step down to a 63 mm unit if your force needs drop below 1559 N push at 0.5 MPa, or step up to a 100 mm bore if you need more than the 3518 N push available here at 0.7 MPa. The 20 mm adjustable window is ideal for sharing a single spare cylinder across machines that need slightly different extend endpoints. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. The included -S magnet supports CMSE/DMSE switches in the side grooves. Because this is a 50 mm stroke, side-load risks are minimal, but for any application exceeding 300 mm of travel, always guide the load externally to prevent rod binding.
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 JSIJ63~80 Adjustable Cylinder JSIJ80X50-20S FAQ
At 0.5 MPa it pushes 2513 N and pulls 2268 N. At 0.7 MPa it pushes 3518 N and pulls 3175 N. The theoretical maximum force is 513 kgf at 1.0 MPa.
The external adjuster lets you shorten the extend stroke by up to 20 mm on site, meaning usable extend travel is 30 to 50 mm. The nominal 50 mm stroke is the maximum, and the retract end remains fixed. This mechanism sets the end position and is not a load lock.
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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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