Airtac JSI Series Standard Cylinder JSI80X25S
The AirTAC Airtac JSI Series Standard Cylinder JSI80X25S 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 JSI80X25S
Delivering 2513 N of push force at 0.5 MPa, this 80 mm bore pneumatic actuator fits tight machinery where a standard ISO 15552 cylinder would be too long. The JIS-standard profile body uses an extruded, hard-anodized aluminum barrel that sheds weight while resisting wear. A heterogeneous two-way piston seal retains grease for a long, low-friction service life.
Because this SKU includes the -S magnet, CMSE or DMSE sensors drop directly into the side grooves for precise end-of-stroke detection. In real use, plan for about 1508 N of actual work at 0.5 MPa, which translates to lifting roughly 128 kg vertically with a 2:1 safety margin. The unit features a G3/8 port, a 25 mm stroke, and adjustable air cushions at both ends to smooth out impacts.
Airtac JSI Series Standard Cylinder JSI80X25S Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI80X25S |
|---|---|
| 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 JSI80X25S
| 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 JSI80X25S Is Used
Short-Stroke Clamping
Ideal for holding heavy steel plates in a welding fixture, using the 25 mm stroke to quickly secure parts before the arc starts.
Parts Ejection
Provides the fast, forceful push needed to eject finished machined castings from an assembly line conveyor.
Pallet Stopper
Acts as a high-strength stop gate at the end of a heavy-duty roller conveyor, halting loaded pallets reliably.
Is the Airtac JSI Series Standard Cylinder JSI80X25S the Right Cylinder?
If 2513 N at 0.5 MPa is more force than your application needs, the next size down is the 63 mm bore, which outputs 1559 N; stepping up to the 100 mm bore provides 3927 N. This 25 mm stroke is ideal for short clamping or ejecting motions. Since this is a double-acting cylinder, air drives the rod in both directions. Remember that a standard cylinder will drift if air pressure drops or the valve is centered, so add an external rod lock or pilot-operated check valve if you need to hold a load safely in place. The integrated magnet means it is fully ready for 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 JSI Series Standard Cylinder JSI80X25S FAQ
This 80 mm bore model uses a G3/8 port and delivers a push force of 2513 N and a pull force of 2268 N at 0.5 MPa. At 0.7 MPa, push is 3518 N and pull is 3175 N. The theoretical maximum force is 513 kgf at 1.0 MPa.
The JSI is a JIS-standard profile cylinder that is shorter and more compact than an ISO 15552 cylinder of the same 80 mm bore, saving valuable space on tight machines. It features a hard-anodized aluminum barrel with no external rods, and the -S suffix means it includes a piston magnet for CMSE/DMSE sensors.
Authorized Export Seller
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.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC JSI Cylinders
Request a Quote for Airtac JSI Series Standard Cylinder JSI80X25S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.