Airtac JSI Series Standard Cylinder JSI80X300S
The AirTAC Airtac JSI Series Standard Cylinder JSI80X300S is a genuine double acting JIS-standard air cylinder with a Ø80mm bore and 300mm 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
- Stroke300 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 JSI80X300S
Delivering 2513 N of push force at 0.5 MPa, the AirTAC JSI80X300S is a double-acting JIS-standard profile cylinder built for tight machinery layouts. It is noticeably shorter and more compact than an ISO 15552 cylinder of the same 80 mm bore, saving valuable space without sacrificing power. The extruded hard-anodized aluminum barrel eliminates external rods to resist wear, while the two-way piston seal retains grease for a long, low-friction service life.
Because this SKU includes the -S magnet, CMSE or DMSE electronic switches drop directly into the side grooves for position sensing. Plan for about 1508 N of real work at 0.5 MPa, which translates to lifting roughly 128 kg vertically with a 2:1 safety margin. The unit features a 25 mm piston rod, an M22x1.5 rod-end thread, and a G3/8 air port.
Airtac JSI Series Standard Cylinder JSI80X300S Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI80X300S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 300 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 JSI80X300S
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 80 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×300 | 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 JSI80X300S Is Used
Pallet Diverters
Pushes heavy wood or aluminum pallets sideways across conveyor lines using a safe 1508 N working load at 0.5 MPa.
Vertical Crate Lifter
Lifts parts weighing up to 128 kg in packaging stations, relying on the 300 mm stroke to clear machine guards.
Press Ejection
Ejects formed metal components from hydraulic presses, using the hard-anodized barrel to withstand industrial debris.
Is the Airtac JSI Series Standard Cylinder JSI80X300S the Right Cylinder?
When sizing this 80 mm bore, stepping down to a 63 mm JSI drops the 0.5 MPa push force to 1559 N, while moving up to a 100 mm bore increases it to 3927 N. For the 300 mm stroke, use an external guide to prevent rod bending and premature seal wear under side loads. Remember that a standard cylinder drifts if air pressure is lost or the valve is centered; the adjustable 29 mm air cushions only decelerate the piston near the end of travel. To hold a load securely, install an external rod lock or a 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 JSI80X300S 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, and 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. It uses an extruded aluminum barrel instead of external rods, and the -S suffix means it has a built-in magnet for CMSE or 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.
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