Airtac JSI Series Standard Cylinder JSI100X50SFA
The AirTAC Airtac JSI Series Standard Cylinder JSI100X50SFA is a genuine double acting JIS-standard air cylinder with a Ø100mm bore and 50mm 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
- Stroke50 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 JSI100X50SFA
Delivering 3927 N of push force at 0.5 MPa, the AirTAC JSI100X50SFA is a JIS-standard double-acting profile cylinder built for heavy-duty machinery. Its extruded hard-anodized aluminum barrel omits external rods, making the unit significantly shorter and more compact than an ISO 15552 cylinder of the same 100 mm bore. The built-in piston magnet (-S) allows CMSE or DMSE switches to drop directly into the side grooves for precise end-of-stroke detection, while the two-way NBR seal retains grease for a long, low-friction service life.
With a 50 mm stroke, this FA flange-mounted model is engineered for high-impact tasks. The G1/2 port feeds the 32 mm chrome-plated rod, generating 3574 N of pull force at 0.5 MPa. For practical sizing, plan for about 2356 N of real work at 0.5 MPa, which means it lifts roughly 200 kg vertically with a 2:1 safety margin. Adjustable 33 mm air cushions at both ends absorb kinetic energy smoothly at the stroke limits.
Airtac JSI Series Standard Cylinder JSI100X50SFA Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI100X50SFA |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 50 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 JSI100X50SFA
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×50 | 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 JSI100X50SFA Is Used
Press Tonnage Backup
Supplies 3927 N of push at 0.5 MPa to hold heavy stamping dies or welding fixtures firmly in place during automated press cycles.
Injection Mold Clamping
Uses the FA flange to bolt securely onto mold bases, providing 3574 N of pull force at 0.5 MPa to separate heavy tooling halves.
Pallet Stopper Gate
Acts as a robust 100 mm bore barrier in high-mass conveyor lines, lowering its 32 mm rod to halt loaded pallets on demand.
Is the Airtac JSI Series Standard Cylinder JSI100X50SFA the Right Cylinder?
When sizing this 100 mm bore unit against its neighbors, note the 80 mm JSI provides 2513 N of push at 0.5 MPa, while the 125 mm version steps up to 6136 N. Choose this 100 mm bore if your application requires around 2356 N of actual working force. The included FA flange provides a robust front mounting face for secure bolting to machine frames. Because the -S magnet is present, you can easily add CMSE or DMSE sensors for position feedback. Remember that a standard air cylinder drifts if air pressure drops or the valve is centered; the cushions only decelerate the piston near the end of stroke rather than locking it. To hold a vertical load securely, integrate an external rod lock or a pilot-operated check valve into your circuit.
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 JSI100X50SFA FAQ
This 100 mm bore cylinder features a G1/2 air port and an M26x1.5 rod thread. It generates 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 JSI series follows JIS standards and uses an extruded hard-anodized aluminum barrel without external rods, making it shorter and more compact than an ISO 15552 cylinder of the same bore. This space-saving design is ideal for tight machine layouts.
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1-Year Warranty
Covers non-human-caused product damage.
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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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