Airtac JSI Series Standard Cylinder JSI100X300SFA
The AirTAC Airtac JSI Series Standard Cylinder JSI100X300SFA is a genuine double acting JIS-standard air cylinder with a Ø100mm bore and 300mm stroke, G1/2 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.
- BoreØ100 mm
- Stroke300 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM26×1.5
- CushionAdjustable, 33 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 JSI100X300SFA
Delivering 3927 N of push force at 0.5 MPa, this double-acting single-rod actuator brings heavy-duty performance to tight machine layouts. As a JIS-standard profile cylinder, it is noticeably shorter and more compact than an ISO 15552 cylinder of the same 100 mm bore. The extruded hard-anodized aluminum barrel omits external rods to resist wear, while the two-way piston seal retains grease for a long, low-friction service life.
Equipped with an -S piston magnet, the body accepts CMSE or DMSE reed and electronic switches that drop directly into the side grooves for position sensing. The G1/2 air port handles high flow to keep the 32 mm rod moving at 30-800 mm/s. For practical sizing, plan for about 2356 N of real work at 0.5 MPa, which safely lifts a 200 kg vertical load with a 2:1 margin. Adjustable 33 mm air cushions at both ends decelerate the piston smoothly at stroke ends.
Airtac JSI Series Standard Cylinder JSI100X300SFA Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI100X300SFA |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 300 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M26×1.5 |
| 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, 33 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3525 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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 JSI100X300SFA
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 100 | 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 JSI100X300SFA Is Used
Press Tool Ejection
Uses the full 3927 N push at 0.5 MPa to eject heavy stamped metal panels from a 100-ton press bed, relying on the FA flange to hold alignment under impact.
Pallet Dispenser Pusher
Indexes empty wooden pallets into a packaging line, utilizing the 200 kg safe vertical lift capacity to overcome friction without stalling.
Injection Mold Separation
Cracks large plastic injection molds open across the 300 mm stroke, where the hard-anodized barrel withstands occasional coolant spray and shop debris.
Is the Airtac JSI Series Standard Cylinder JSI100X300SFA the Right Cylinder?
This 100 mm bore pairs a 300 mm stroke with an FA flange mount, which bolts directly to machine frames to handle the substantial 5497 N push force available at 0.7 MPa. If your application requires less power, the adjacent 80 mm bore provides 2513 N at 0.5 MPa; stepping up to the 125 mm bore yields 6136 N. Because this is a 300 mm stroke, external guide rails are recommended to prevent rod bending under heavy side loads.
Note that a standard pneumatic cylinder drifts when air is lost or the valve is centered, as the end cushions only decelerate motion and do not act as a brake. To suspend a load safely during an emergency stop or pressure drop, install an external rod lock or a pilot-operated check valve in the air line.
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 JSI100X300SFA FAQ
The 100 mm bore has a G1/2 air port and an M26x1.5 rod thread. Force output is 3927 N push and 3574 N pull at 0.5 MPa, 5497 N push and 5003 N pull at 0.7 MPa, with a theoretical maximum of 801 kgf at 1.0 MPa.
The JIS-standard extruded profile body is shorter and more compact than an ISO 15552 cylinder of the same bore, saving valuable space on machinery. It uses an FA flange for mounting and includes the -S magnet for side-groove CMSE or DMSE sensors.
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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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