Airtac JSI Series Standard Cylinder JSI100X40S
The AirTAC Airtac JSI Series Standard Cylinder JSI100X40S is a genuine double acting JIS-standard air cylinder with a Ø100mm bore and 40mm 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
- Stroke40 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 JSI100X40S
Delivering 3927 N of push force at 0.5 MPa, this double-acting 100 mm bore JIS-standard profile cylinder is built for heavy-duty machinery. Its extruded hard-anodized aluminum barrel omits external rods, making the unit significantly shorter and more compact than an equivalent ISO 15552 cylinder. A heterogeneous two-way piston seal retains grease for extended, low-friction operation.
The -S suffix indicates a built-in piston magnet, allowing CMSE or DMSE electronic switches to drop directly into the side sensor grooves for position detection. 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. The G1/2 air port and M26x1.5 rod thread handle the high flow and structural loads required for this thrust class.
Airtac JSI Series Standard Cylinder JSI100X40S Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI100X40S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 40 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 JSI100X40S
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×40 | 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 JSI100X40S Is Used
Stamping Press Feed
Pushes heavy steel blanks into a mechanical press with 3927 N of force, utilizing the 40 mm stroke for rapid, short-cycle clamping.
Pallet Stopper Gate
Acts as a high-strength physical stop barrier on roller conveyors, easily holding back loaded pallets weighing up to 200 kg.
Injection Mold Eject
Provides a powerful 3574 N retraction pull to extract dense plastic injection molded parts from deep cavities before robotic pickup.
Is the Airtac JSI Series Standard Cylinder JSI100X40S the Right Cylinder?
When sizing this 100 mm bore actuator, consider the neighboring JSI options: stepping down to the 80 mm bore yields 2513 N push at 0.5 MPa, while the larger 125 mm bore provides 6136 N. This JSI100X40S includes the -S magnet for CMSE/DMSE sensors; without that suffix, the groove would be empty and position sensing impossible. The 40 mm stroke keeps the rod short and rigid, minimizing bending concerns.
Because it is a standard double-acting cylinder, the piston will drift if air pressure drops or the valve is centered—the adjustable 33 mm end cushions only decelerate the stroke and never act as a locking brake. To safely suspend a load, 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 JSI100X40S FAQ
At 0.5 MPa it provides 3927 N push and 3574 N pull. At 0.7 MPa it provides 5497 N push and 5003 N pull. The theoretical maximum is 801 kgf at 1.0 MPa. The air port is G1/2, the rod is 32 mm, and the rod-end thread is M26x1.5.
It is a JIS-standard profile cylinder that is shorter and more compact than an ISO 15552 cylinder of the same 100 mm bore. The hard-anodized aluminum extrusion has no external rods, saving valuable space. The built-in -S magnet also allows drop-in CMSE/DMSE sensors for position feedback.
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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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