Airtac JSI Series Standard Cylinder JSI100X270S
The AirTAC Airtac JSI Series Standard Cylinder JSI100X270S is a genuine double acting JIS-standard air cylinder with a Ø100mm bore and 270mm 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
- Stroke270 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 JSI100X270S
Delivering 3927 N of push force at 0.5 MPa, this double-acting 100 mm bore JIS-standard profile cylinder is built for heavy-duty machinery. Its extruded hard-anodized aluminum barrel omits external rods, making the unit significantly shorter and more compact than an equivalent ISO 15552 cylinder. The internal two-way piston seal retains grease, ensuring low-friction operation over a long service life.
Because the SKU includes the -S suffix, a built-in piston magnet enables CMSE or DMSE electronic switches to drop directly into the side sensor grooves. In practical terms, you can plan for roughly 2356 N of real work at 0.5 MPa, which translates to lifting about 200 kg vertically with a 2:1 safety margin. The unit features a G1/2 air port, an M26x1.5 rod-end thread, and adjustable 33 mm air cushions at both ends to decelerate the payload smoothly.
Airtac JSI Series Standard Cylinder JSI100X270S Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI100X270S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 270 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 JSI100X270S
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×270 | 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 JSI100X270S Is Used
Injection Mold Clamping
Provides the 3927 N push force at 0.5 MPa needed to secure heavy injection mold halves, utilizing the 270 mm stroke to clear the part ejection zone.
Pallet Divider Pusher
Separates loaded pallets on a high-throughput packaging line, moving roughly 200 kg vertically or laterally while benefiting from the compact JIS profile to save floor space.
Heavy Press Ejection
Ejects dense stamped metal components from a hydraulic press, using the adjustable 33 mm cushions to soften the end-of-stroke impact and protect the tooling.
Is the Airtac JSI Series Standard Cylinder JSI100X270S the Right Cylinder?
When sizing this 100 mm bore actuator against its neighbors, step down to a 63 mm bore for 1559 N of push at 0.5 MPa, or step up to a 125 mm bore for 6136 N if your application demands more power. The 270 mm stroke falls well within the 1500 mm standard limit, keeping the unit readily available. Keep in mind that a standard pneumatic cylinder does not hold its position if air pressure drops or the valve is centered, as the piston will drift; the end cushions only decelerate the stroke and do not act as a brake. For suspended loads, incorporate an external rod lock or a pilot-operated check valve.
Since this model carries the -S magnet, it is fully compatible with CMSE and DMSE reed or solid-state sensors. For a 270 mm stroke, ensure your mounting arrangement—whether LB foot, FA/FB flange, CA/CB/CR clevis, TC/TCM1/TCM2 trunnion, or an I/Y/F/U rod knuckle—prevents side-loading and rod-bending forces by guiding the load externally rather than letting the piston rod absorb lateral stress.
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 JSI100X270S FAQ
At 0.5 MPa it provides 3927 N push and 3574 N pull. At 0.7 MPa it provides 5497 N push and 5003 N pull. The theoretical maximum force is 801 kgf at 1.0 MPa. This 100 mm bore cylinder uses a G1/2 air port, an M26x1.5 rod thread, and operates at speeds between 30-800 mm/s.
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 hard-anodized aluminum barrel without external rods. The included -S magnet allows CMSE or DMSE sensors to be fitted into the side grooves for position detection.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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