Airtac JSI Series Standard Cylinder JSI40X220S
The AirTAC Airtac JSI Series Standard Cylinder JSI40X220S is a genuine double acting JIS-standard air cylinder with a Ø40mm bore and 220mm 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.
- BoreØ40 mm
- Stroke220 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM14×1.5
- CushionAdjustable, 20.5 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 JSI40X220S
Delivering 628 N of push force at 0.5 MPa, this double-acting JIS-standard profile cylinder saves valuable machine space by being noticeably shorter than an equivalent ISO 15552 unit of the same 40 mm bore. The extruded hard-anodized aluminum barrel omits external rods to resist wear, while a heterogeneous two-way piston seal retains grease for a long, low-friction service life. It breathes through a G1/4 port and decelerates cleanly via 20.5 mm adjustable air cushions at both ends.
Because the code carries the -S suffix, a built-in piston magnet is included so CMSE or DMSE switches can drop directly into the side grooves for position sensing. For real-world sizing, plan for roughly 377 N of actual work at 0.5 MPa, which translates to lifting about 32 kg vertically with a 2:1 safety margin.
Airtac JSI Series Standard Cylinder JSI40X220S Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI40X220S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 220 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).
Theoretical Output Force (Ø40mm)
| 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.
Model Code: Airtac JSI Series Standard Cylinder JSI40X220S
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×220 | 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 JSI40X220S Is Used
Package Diverting
Actuates routing gates on packaging conveyors, using the 220 mm stroke to push cartons cleanly into secondary lanes without overshooting.
Small Part Ejection
Ejects molded plastic components from press tools, relying on the 528 N pull force at 0.5 MPa to retract the stripper plate reliably.
Tray Indexing
Indexes empty pallets along a roller bed where the compact JIS profile keeps the drive head thin and avoids clashing with adjacent frames.
Is the Airtac JSI Series Standard Cylinder JSI40X220S the Right Cylinder?
When sizing this 40 mm bore, dropping down to a JSI32 reduces the output to 402 N push at 0.5 MPa, whereas stepping up to a JSI50 raises it to 982 N. The 220 mm stroke sits comfortably within the 1200 mm standard limit, but at this length you should support the load with an external guide to prevent rod bending and premature seal wear. The included -S magnet pairs perfectly with CMSE or DMSE sensors. Remember that standard air cushions only decelerate the piston near the end of travel; if air pressure drops, the rod will drift, so fit an external rod lock or pilot-operated check valve for suspended loads.
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 JSI40X220S FAQ
This 40 mm bore cylinder features a G1/4 port and an M14x1.5 rod thread. The thrust outputs are 628 N push and 528 N pull at 0.5 MPa, increasing to 879 N push and 739 N pull at 0.7 MPa. The theoretical maximum force is 128 kgf at 1.0 MPa.
Yes, the -S suffix means a magnet is built-in, allowing CMSE or DMSE switches to mount in the side grooves. Regarding safety, the adjustable cushions only slow the piston near stroke ends and will not hold a load if air is lost; you must add an external rod lock or pilot check valve to prevent drifting.
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Standard models are processed and dispatched in 3-5 business days.
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