
The AirTAC Airtac JSI Series Standard Cylinder JSI100X140 is a genuine double acting JIS-standard air cylinder with a Ø100mm bore and 140mm 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.
Delivering 3927 N of push force at 0.5 MPa, this double-acting 100 mm bore cylinder tackles heavy machinery tasks with ease. The extruded hard-anodized aluminum barrel sheds external rods to save machine space, measuring shorter and more compact than an ISO 15552 cylinder of the same bore. A two-way piston seal retains grease for a long, low-friction service life across its 140 mm stroke.
Air enters via a G1/2 port to drive the 32 mm chrome rod at 30-800 mm/s, while 33 mm adjustable cushions at both ends soften end-of-stroke impacts. Because this SKU lacks the -S magnet, it cannot accept CMSE or DMSE position switches. For real-world sizing, plan for about 2356 N of actual work at 0.5 MPa, which safely lifts a 200 kg load vertically with a 2:1 margin.
| Model | Airtac JSI Series Standard Cylinder JSI100X140 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 140 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).
| 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.
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×140 | 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.
Pushes heavy coil stock into a mechanical press, utilizing the 3927 N thrust at 0.5 MPa to overcome material friction.
Ejects empty wooden pallets from a magazine stack, where the 200 kg safe vertical lift capacity easily handles the weight.
Secures mold halves on a mid-size injection molding machine, using the compact profile to fit tight cell layouts.
When sizing this 100 mm bore unit, the 80 mm class offers 2513 N push at 0.5 MPa for lighter duties, while the 125 mm tier jumps to 6136 N if you need more raw power. The 140 mm stroke is well within the 1500 mm standard limit, keeping the assembly rigid without needing auxiliary guides. Mounting options include LB foot, FA/FB flange, CA/CB clevis, or TC trunnion brackets to fit your frame.
Remember that the air cushion only decelerates the piston near the end of travel; it does not function as a brake. If power or air is lost, the rod will drift, so fit an external rod lock or pilot-operated check valve to suspend loads safely.
Quick checklist
This 100 mm bore cylinder features a G1/2 port and generates 3927 N push / 3574 N pull at 0.5 MPa, and 5497 N push / 5003 N pull at 0.7 MPa. The theoretical maximum force is 801 kgf at 1.0 MPa.
No, this specific SKU lacks the -S magnet, so it cannot accept CMSE or DMSE switches. You must select the JSI100X140-S variant to enable position sensing in the side grooves.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.