
The AirTAC Airtac JSI Series Standard Cylinder JSI40X200SFA is a genuine double acting JIS-standard air cylinder with a Ø40mm bore and 200mm stroke, G1/4 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 628 N of push force at 0.5 MPa, the AirTAC JSI40X200SFA is a double-acting JIS-standard profile cylinder built for tight machinery layouts. It is intentionally shorter and more compact than an ISO 15552 cylinder of the same 40 mm bore, saving valuable space without sacrificing power. The extruded hard-anodized aluminum barrel omits external rods to resist wear, while a two-way piston seal retains grease for long, low-friction life. Because this SKU includes the -S magnet, you can drop CMSE or DMSE reed or electronic switches directly into the side grooves for position sensing.
Plan for about 377 N of real work at 0.5 MPa, which safely lifts roughly 32 kg vertically with a 2:1 margin. The unit features a 16 mm rod, an M14x1.5 rod-end thread, and a G1/4 port. Adjustable 20.5 mm air cushions at both ends absorb end-of-stroke impact, operating smoothly across a 30-800 mm/s speed range.
| Model | Airtac JSI Series Standard Cylinder JSI40X200SFA |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 200 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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, 20.5 mm |
| Max standard stroke | Up to 1200 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×200 | 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.
Uses the 628 N push force to deflect cartons between sorting lanes on a compact packaging conveyor.
Retracts a 200 mm stroke to push stamped small metal parts out of a tight-progression press die.
Extends to secure lightweight aluminum extrusions during automated drilling and tapping cycles.
When sizing this 40 mm bore, stepping down to a 32 mm JSI drops the 0.5 MPa push force to 402 N, while moving up to a 50 mm bore increases it to 982 N. This model carries the FA front-flange mounting accessory, providing a rigid face-mount interface for your fixture. Note that a standard cylinder drifts if air is lost or the valve is centered; the cushions only decelerate the piston near stroke end and do not act as a lock. For suspended loads, add an external rod lock or a pilot-operated check valve. With a 200 mm stroke, keep the load guided to prevent rod bending and premature seal wear from side loads.
Quick checklist
At 0.5 MPa it provides 628 N push and 528 N pull. At 0.7 MPa it yields 879 N push and 739 N pull, with a theoretical maximum of 128 kgf at 1.0 MPa. The air port is G1/4.
It is a JIS-standard profile cylinder that is shorter and more compact than an ISO 15552 cylinder of the same 40 mm bore. The extruded aluminum barrel has no external rods, and the included -S magnet allows CMSE/DMSE sensors to slot into 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.
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