Airtac JSI Series Standard Cylinder JSI100X550SFB
The AirTAC Airtac JSI Series Standard Cylinder JSI100X550SFB is a genuine double acting JIS-standard air cylinder with a Ø100mm bore and 550mm 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
- Stroke550 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 JSI100X550SFB
Delivering 3927 N of push force at 0.5 MPa, this 100 mm bore double-acting actuator shrinks machine footprints because its JIS-standard extruded profile is physically shorter than an ISO 15552 cylinder of the same bore. The hard-anodized aluminum barrel omits external rods to resist wear, while a two-way piston seal retains grease for a long, low-friction service life. Plan for about 2356 N of real work at 0.5 MPa, which translates to lifting roughly 200 kg vertically with a 2:1 safety margin.
This specific SKU includes the -S piston magnet, allowing CMSE or DMSE electronic switches to drop directly into the side sensor grooves for position detection. Air connections use a G1/2 port, and the FB flange mount provides a rigid front-cover interface for your fixed machinery. The adjustable 33 mm air cushions at both ends absorb kinetic energy smoothly, operating reliably across a 0.15-1.0 MPa pressure range.
Airtac JSI Series Standard Cylinder JSI100X550SFB Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI100X550SFB |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 550 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 JSI100X550SFB
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×550 | 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 JSI100X550SFB Is Used
Pallet Diversion Gate
Shifts heavy wooden pallets sideways on a high-speed packaging line using 3927 N of push force at 0.5 MPa, with the FB flange keeping the actuator rigid under sudden lateral impacts.
Injection Mold Ejection
Drives a secondary ejector plate over 550 mm to clear large automotive interior panels from a press, relying on the 33 mm adjustable air cushions to prevent end-of-stroke shock.
Vertical Lift Station
Raises loaded material trays weighing up to 200 kg using a 2:1 safety margin, requiring external linear guides to stabilize the long 550 mm extension and prevent rod bending.
Is the Airtac JSI Series Standard Cylinder JSI100X550SFB the Right Cylinder?
When sizing this 100 mm bore unit against its neighbors, step down to a 63 mm JSI for lighter loads of 1559 N push at 0.5 MPa, or step up to a 125 mm bore if you need the maximum 6136 N push. Because this is a 550 mm stroke, the extended 32 mm rod is susceptible to bending under lateral stress; always use external guide rails to support the payload and prevent side-load damage.
The built-in -S magnet pairs perfectly with CMSE/DMSE sensors, and the FB front flange mount handles heavy fixed loads. Remember that standard air cushions only decelerate the piston near the stroke ends and do not act as a brake; if air pressure drops or the valve centers, the piston will drift. Use an external pilot-operated check valve or a dedicated rod lock to hold a suspended load safely in place.
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 JSI100X550SFB FAQ
This 100 mm bore model features a G1/2 port and an M26x1.5 rod thread. It generates 3927 N push and 3574 N pull at 0.5 MPa, increasing to 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 is built to JIS standards and uses an extruded hard-anodized aluminum barrel without external rods, making it significantly shorter and more compact than an ISO 15552 cylinder of the same 100 mm bore. This space-saving design retains full sensor compatibility via the side grooves when the -S magnet option is present.
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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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