Airtac JSI Series Standard Cylinder JSI100X350S
The AirTAC Airtac JSI Series Standard Cylinder JSI100X350S is a genuine double acting JIS-standard air cylinder with a Ø100mm bore and 350mm 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
- Stroke350 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 JSI100X350S
Delivering 3927 N of push force at 0.5 MPa, this 100 mm bore double-acting actuator fits a 350 mm stroke into a JIS-standard profile that is noticeably shorter than an equivalent ISO 15552 cylinder. The extruded 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 lifts roughly 200 kg vertically with a 2:1 safety margin.
Because this SKU includes the -S magnet, you can drop CMSE or DMSE reed or electronic switches directly into the side sensor grooves for position detection. Air enters via the G1/2 port, driving the Ø32 mm hard-chrome rod at 30-800 mm/s, with a 33 mm adjustable air cushion at each end to decelerate the payload smoothly.
Airtac JSI Series Standard Cylinder JSI100X350S Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI100X350S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 350 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 JSI100X350S
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×350 | 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 JSI100X350S Is Used
Pallet Diversion
Pushes heavy wooden pallets onto adjacent packaging lines using its 3927 N push force at 0.5 MPa without overwhelming the compressed air supply.
Vertical Lift Gate
Raises a 180 kg loading bay gate through 350 mm of travel, staying safely within the 200 kg vertical lift capacity calculated with a 2:1 margin.
Press Ejection
Ejects formed metal parts from a 100-ton press, relying on the 33 mm adjustable air cushions to halt the rod gently at high cycling speeds.
Is the Airtac JSI Series Standard Cylinder JSI100X350S the Right Cylinder?
When sizing this 100 mm bore class, stepping down to the JSI80 yields 2513 N push at 0.5 MPa, whereas the larger JSI125 provides 6136 N if your system needs more authority. The included -S magnet pairs perfectly with CMSE or DMSE sensors, and you can mount the body via LB foot, FA/FB flange, CA/CB/CR clevis, TC/TCM1/TCM2 trunnion, or an I/Y/F/U rod knuckle.
At a 350 mm stroke, the extended Ø32 mm rod is susceptible to bending under lateral stress, so use an external guide rail to prevent side-loading damage. Remember that a standard cylinder drifts if air pressure drops or the valve is centered—the end cushions only slow the piston near stroke limits and will not hold a suspended load, so fit an external rod lock or pilot-operated check valve for vertical safety.
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 JSI100X350S FAQ
This 100 mm bore cylinder features a G1/2 air port and an M26x1.5 rod thread. It generates 3927 N push and 3574 N pull at 0.5 MPa, 5497 N push and 5003 N pull at 0.7 MPa, with a theoretical maximum of 801 kgf at 1.0 MPa.
The JSI is a JIS-standard profile cylinder built with an extruded hard-anodized aluminum barrel that is shorter and more compact than an ISO 15552 cylinder of the same 100 mm bore, saving valuable machine space without sacrificing the 350 mm stroke.
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Standard models are processed and dispatched in 3-5 business days.
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