Airtac JSI Series Standard Cylinder JSI100X120
The AirTAC Airtac JSI Series Standard Cylinder JSI100X120 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 JSI100X120
Delivering 3927 N of push force at 0.5 MPa, the AirTAC JSI100X120 is a heavy-duty double-acting actuator built around a JIS-standard extruded aluminium profile. Because it uses a no-external-rod barrel construction, it occupies a shorter envelope than an ISO 15552 cylinder of the same 100 mm bore, saving valuable space on large machines. The hard-anodized barrel resists wear, while the two-way piston seal retains grease for a long, low-friction service life.
With a 120 mm stroke and a 32 mm rod, this unit is driven through a G1/2 port and decelerates smoothly via 33 mm adjustable air cushions at both ends. Plan for about 2356 N of real work at 0.5 MPa, which means it lifts roughly 200 kg vertically with a 2:1 safety margin. Note that this specific SKU lacks the -S magnet, so it cannot host CMSE or DMSE position switches.
Airtac JSI Series Standard Cylinder JSI100X120 Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI100X120 |
|---|---|
| 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 JSI100X120
| 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 JSI100X120 Is Used
Injection Mould Clamping
Provides 3927 N of push at 0.5 MPa to secure mid-sized mould halves and heavy tooling plates within 120 mm of travel.
Pallet Diverting
Shifts heavy loaded pallets transversely on packaging lines, using the hard-anodized profile to withstand abrasive industrial environments.
Carton Flap Folding
Drives robust mechanical arms to fold thick cardboard flaps on high-speed automated case erectors.
Is the Airtac JSI Series Standard Cylinder JSI100X120 the Right Cylinder?
When sizing this 100 mm bore, stepping down to the JSI80X100 yields 2513 N push at 0.5 MPa, whereas moving up to the JSI125X100 provides 6136 N. This model is optimal when your load sits between those bounds. Since this SKU has no -S suffix, it cannot accept magnetic sensors; choose the -S variant if you need CMSE or DMSE switches in the side grooves. For mounting flexibility, you can use LB foot, FA/FB flange, CA/CB/CR clevis, TC trunnion, or an I/Y/F/U rod knuckle. Remember that air loss or a centred valve will let the piston drift, as the cushions only decelerate the stroke end. Install an external rod lock or pilot-operated check valve to hold a suspended load.
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 JSI100X120 FAQ
At 0.5 MPa it pushes with 3927 N and pulls with 3574 N. At 0.7 MPa the push is 5497 N and pull is 5003 N. The theoretical maximum force is 801 kgf at 1.0 MPa. The air port is G1/2.
It is a JIS-standard profile cylinder that is shorter and more compact than an ISO 15552 cylinder of the same 100 mm bore. It uses an extruded aluminium barrel with no external rods, saving machine space without sacrificing the 801 kgf maximum force rating.
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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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