
The AirTAC Airtac JSI Series Standard Cylinder JSI80X250TC is a genuine double acting JIS-standard air cylinder with a Ø80mm bore and 250mm 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.
Delivering 2513 N of push force at 0.5 MPa, the AirTAC JSI80X250TC is a double-acting JIS-standard profile cylinder built for tight machinery. Its extruded hard-anodized aluminum barrel omits external rods, making the unit shorter and more compact than an ISO 15552 cylinder of the same 80 mm bore. The internal two-way piston seal retains grease for a long, low-friction service life.
Because this SKU lacks the -S magnet, it cannot accept CMSE or DMSE position sensors. Plan for roughly 1508 N of real work at 0.5 MPa, which translates to lifting about 128 kg vertically with a 2:1 safety margin. Air enters via G3/8 ports, and adjustable 29 mm air cushions at both ends decelerate the piston smoothly.
| Model | Airtac JSI Series Standard Cylinder JSI80X250TC |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 250 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).
| 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.
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 80 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×250 | 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.
Provides the 2513 N push force needed to eject formed metal blanks from a 50-ton stamping press, using the 250 mm stroke to clear the die area completely.
Uses the TC trunnion mount to pivot a heavy diverter arm on a packaging line, deflecting filled cartons weighing up to 128 kg onto a secondary spur belt.
Raises and lowers a 100 kg loading dock gate through 250 mm of travel, relying on the hard-anodized barrel to withstand dusty, high-cycle warehouse environments.
When sizing this 80 mm bore against its neighbors, note the 63 mm option yields 1559 N push while the 100 mm step provides 3927 N at 0.5 MPa. The integrated TC trunnion mount suits pivoting articulations, but ensure your frame supports the side loads inherent to a 250 mm stroke by guiding the rod end to prevent bending. Since this is a non-magnetic SKU, switching to a JSI80X250TC-S variant is required if you need drop-in sensor tracking.
Remember that standard pneumatic operation will not secure a suspended load; if air pressure drops or the valve centers, the piston drifts. The end cushions only slow travel near the stroke limits and never act as a brake. To hold a vertical load safely, fit an external rod lock or a pilot-operated check valve.
Quick checklist
This 80 mm bore cylinder features G3/8 ports and an M22x1.5 rod thread. It generates 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push and 3175 N pull at 0.7 MPa, with a theoretical maximum of 513 kgf at 1.0 MPa.
No, because this specific SKU does not include the -S magnet. To use CMSE or DMSE magnetic switches in the side sensor grooves, you must select the JSI80X250TC-S variant instead.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.