Airtac JSI Series Standard Cylinder JSI80X25SFA
The AirTAC Airtac JSI Series Standard Cylinder JSI80X25SFA is a genuine double acting JIS-standard air cylinder with a Ø80mm bore and 25mm 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
- Stroke25 mm
- Port sizeG3/8
- Acting typeDouble acting
- 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 JSI Series Standard Cylinder JSI80X25SFA
Delivering 2513 N of push force at 0.5 MPa, the AirTAC JSI80X25SFA is a double-acting JIS-standard profile cylinder built for tight machinery. Its extruded hard-anodized aluminum barrel omits external rods, making it shorter and more compact than an ISO 15552 cylinder of the same 80 mm bore. The included -S piston magnet allows CMSE or DMSE sensors to drop directly into the side grooves for position detection.
The 25 mm stroke moves a 25 mm rod through G3/8 ports, guided by a grease-retaining two-way NBR seal for low-friction life. Plan for about 1508 N of real work at 0.5 MPa, which lifts roughly 128 kg vertically with a 2:1 margin. The FA flange mount secures the body firmly for these short, rapid 30-800 mm/s cycles.
Airtac JSI Series Standard Cylinder JSI80X25SFA Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI80X25SFA |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| 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 JSI Series Standard Cylinder JSI80X25SFA
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 80 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×25 | 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 JSI Series Standard Cylinder JSI80X25SFA Is Used
Short-Stroke Pressing
Applies up to 2513 N at 0.5 MPa for pressing small bearings or pins into housings on automated assembly lines.
Flange-Mounted Diverter
Uses the FA front flange to rigidly mount a 25 mm stroke diverter arm, rapidly routing packages at 30-800 mm/s.
Spot Weld Clamp
Provides the 128 kg vertical equivalent holding force needed to clamp steel sheets briefly before a robotic welder fires.
Is the Airtac JSI Series Standard Cylinder JSI80X25SFA the Right Cylinder?
If 2513 N at 0.5 MPa is too much force, step down to the 63 mm bore offering 1559 N; if you need more, the 100 mm bore provides 3927 N. Because this SKU includes the -S magnet, it is ready for CMSE or DMSE switches. The FA flange accessory provides a solid front mounting face for fixed-frame installations. Remember that standard air cushions only decelerate the piston near the end of travel; they do not lock the rod. To hold a vertical load safely during air loss or valve centering, install an external rod lock or pilot-operated check valve.
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 JSI Series Standard Cylinder JSI80X25SFA FAQ
At 0.5 MPa it provides 2513 N push and 2268 N pull. At 0.7 MPa it provides 3518 N push and 3175 N pull. The theoretical maximum force is 513 kgf at 1.0 MPa. The air port size is G3/8.
It is a JIS-standard profile cylinder that is shorter and more compact than an ISO 15552 cylinder of the same 80 mm bore. The -S magnet enables CMSE or DMSE sensors, and the FA flange mount allows rigid front attachment.
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Genuine AirTAC parts produced by AirTAC factory.
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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