Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X125-50
The AirTAC Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X125-50 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 JSIJ80X125-50
Delivering 2513 N of push force at 0.5 MPa, this 80 mm bore JIS profile cylinder brings on-site flexibility to heavy pneumatic tasks. The hard-anodized aluminium barrel makes it shorter and more compact than a same-bore ISO 15552 unit. It handles about 1508 N of real work safely, which translates to lifting roughly 128 kg vertically with a 2:1 margin.
A 50 mm external adjuster lets you shorten the extend stroke down to 75 mm without changing the mount, while the retract end stays fixed. Air connects via a G3/8 port, and adjustable 29 mm cushions absorb shock at both ends. Because this SKU lacks a magnet, it cannot take a CMSE or DMSE sensor.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X125-50 Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X125-50 |
|---|---|
| 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 JSIJ80X125-50
| 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 JSIJ80X125-50 Is Used
Press Stroke Tuning
Dial in the exact 75 to 125 mm extend reach on a light stamping press without swapping cylinders.
Variable Transfer Stops
Adjust the stopper block position on the fly to handle different package widths on a single line.
Pallet Positioning
Fine-tune the end-of-stroke push distance when squaring pallets before stretch wrapping.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X125-50 the Right Cylinder?
For 0.5 MPa working loads below 1508 N, dropping to a 63 mm bore saves space, but if you need over 3518 N of push force, step up to the 100 mm bore. The 50 mm adjuster window is ideal when you need to fine-tune the extend end position on-site or want a single spare cylinder to cover several shorter stroke variants. You can mount it using FA, LB, TC, TCM1, or TCM2 brackets. For any stroke at or over 300 mm, always use a guide rail to prevent side-load damage. Note this non-magnetic SKU cannot support position sensing.
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 JSIJ80X125-50 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 nominal 125 mm extend stroke is the maximum. An external stop screw lets you shorten the extend stroke by up to 50 mm on-site, giving a usable range of 75 to 125 mm. The retract end is fixed, and this mechanism sets end position rather than locking the load.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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