Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X125-75
The AirTAC Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X125-75 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø80mm bore and 125mm 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
- Stroke125 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 JSIJ80X125-75
Delivering 2513 N of push force at 0.5 MPa, this 80 mm bore JIS profile cylinder keeps your machinery shorter than a comparable ISO 15552 unit. The hard-anodized aluminum barrel omits tie rods for a clean exterior, and the G3/8 port handles the air flow for a 30-800 mm/s speed range.
A -75 external adjuster lets you shorten the extend stroke on site by up to 75 mm, dropping the usable forward travel from the 125 mm maximum down to 50 mm without swapping the actuator. This on-site tuning handles about 1508 N of real work safely, which means you can lift roughly 128 kg vertically with a 2:1 margin. Note that this specific SKU lacks a magnet, so it cannot take CMSE or DMSE sensors.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X125-75 Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X125-75 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 125 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 JSIJ80X125-75
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 80 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×125 | 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 JSIJ80X125-75 Is Used
Press Fit Tuning
Use the 75 mm extend window to dial in the exact insertion depth of a bearing press on the factory floor without machining new stops.
Transfer Diverter
Adjust the retract stop externally to change how far a diverter arm extends into the product flow, accommodating different package sizes on the fly.
Pallet Stopper
Set the precise 50 to 125 mm protrusion needed to halt pallets securely, relying on the 2513 N push force to absorb the impact.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X125-75 the Right Cylinder?
When sizing this unit, the neighboring 63 mm bore offers 1559 N push at 0.5 MPa for lighter duties, while the 100 mm bore jumps to 3927 N if you need substantially more power. The adjustable stroke is ideal when you want one shared spare across slightly different stroke variants or need fine end-position tuning after mechanical assembly. You can mount it via FA, LB, TC, TCM1, or TCM2 brackets. Because the 125 mm stroke is relatively short, side-load risks are minimal, but for any stroke at or above 300 mm you should always guide the rod end to prevent binding. Remember that a plain cylinder drifts on air loss—the cushion only decelerates—so fit an external rod lock or pilot-operated check valve if the load must hold position.
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 JSIJ80X125-75 FAQ
This 80 mm bore actuator features a G3/8 port and a 25 mm rod. It delivers 2513 N push and 2268 N pull at 0.5 MPa, increasing to 3518 N push and 3175 N pull at 0.7 MPa. The theoretical maximum force is 513 kgf at 1.0 MPa.
The -75 indicates an external adjuster that lets you shorten the extend stroke by up to 75 mm on site. The nominal 125 mm stroke remains the maximum, so your usable extend travel can be fine-tuned down to 50 mm. The retract end is fixed, and the stop mechanism only sets the end position—it does not lock the load.
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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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