Airtac JSI Series Standard Cylinder JSI100X120S
The AirTAC Airtac JSI Series Standard Cylinder JSI100X120S is a genuine double acting JIS-standard air cylinder with a Ø100mm bore and 120mm 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
- Stroke120 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 JSI100X120S
Delivering 3927 N of push force at 0.5 MPa, this double-acting JIS-standard profile cylinder saves valuable machine space by being shorter and more compact than an ISO 15552 cylinder of the same 100 mm bore. The extruded hard-anodized aluminum barrel omits external rods to resist wear, while the two-way piston seal retains grease for long, low-friction life. Equipped with a G1/2 port and an M26x1.5 rod thread, it operates at speeds of 30-800 mm/s.
Because the -S suffix denotes a built-in piston magnet, you can drop CMSE or DMSE reed and electronic switches directly into the side grooves for position sensing. Plan for roughly 2356 N of real work at 0.5 MPa, which means it lifts about 200 kg vertically with a 2:1 safety margin. The 33 mm adjustable air cushions at both ends decelerate the payload smoothly at stroke end.
Airtac JSI Series Standard Cylinder JSI100X120S Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI100X120S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 120 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 JSI100X120S
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×120 | 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 JSI100X120S Is Used
Injection Mold Clamping
Provides the heavy 3927 N push force required to secure injection mold halves, utilizing the compact profile to fit within tight press enclosures.
Pallet Stopper Gate
Acts as a robust stopper arm on heavy-duty pallet conveyors, easily handling 200 kg vertical loads with the integrated magnet for timing confirmation.
Press Die Ejection
Ejects dense stamped parts from mechanical presses, relying on the 33 mm adjustable cushions to absorb kinetic energy at the end of the 120 mm stroke.
Is the Airtac JSI Series Standard Cylinder JSI100X120S the Right Cylinder?
If your payload is lighter, the 80 mm bore offers 2513 N push at 0.5 MPa; if you need more power, the 125 mm bore provides 6136 N. For this 120 mm stroke, side-load risks are minimal, but always guide the rod to prevent bending. Remember that a standard cylinder drifts when air is lost or the valve is centered, as the cushions only decelerate and do not lock the piston. Use an external rod lock or pilot-operated check valve to hold a suspended load. Mounting options include LB foot, FA/FB flange, CA/CB/CR clevis, TC/TCM1/TCM2 trunnion, or an I/Y/F/U rod knuckle.
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 JSI100X120S FAQ
At 0.5 MPa it pushes 3927 N and pulls 3574 N. At 0.7 MPa it pushes 5497 N and pulls 5003 N. The theoretical maximum force is 801 kgf at 1.0 MPa. This 100 mm bore model uses a G1/2 air port and an M26x1.5 rod thread.
It is a JIS-standard profile cylinder that is shorter and more compact than an ISO 15552 cylinder of the same bore, saving footprint space. The -S magnet allows CMSE/DMSE sensors to drop into the side grooves for precise end-of-stroke detection.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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