Airtac JSI Series Standard Cylinder JSI100X285S
The AirTAC Airtac JSI Series Standard Cylinder JSI100X285S is a genuine double acting JIS-standard air cylinder with a Ø100mm bore and 285mm 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
- Stroke285 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 JSI100X285S
Delivering 3927 N of push force at 0.5 MPa, this double-acting profile cylinder packs serious power into a JIS-standard body that is noticeably shorter than an equivalent ISO 15552 unit. The extruded hard-anodized aluminum barrel omits external rods to resist wear, while the two-way piston seal retains grease for a long, low-friction service life. Air arrives via G1/2 ports, and the 33 mm adjustable cushions at both ends tame heavy end-of-stroke impacts.
Because this SKU includes the -S magnet, you can drop CMSE or DMSE reed and electronic switches directly into the side grooves for position sensing. In practical terms, plan for around 2356 N of real work at 0.5 MPa, which translates to lifting about 200 kg vertically with a 2:1 safety margin.
Airtac JSI Series Standard Cylinder JSI100X285S Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI100X285S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 285 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 JSI100X285S
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×285 | 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 JSI100X285S Is Used
Press Tool Ejection
Provides the robust 3927 N push force needed to knock heavy stamped parts out of progressive press dies at 0.5 MPa.
Pallet Diversion
Shifts loaded pallets sideways onto branch conveyors, utilizing the 285 mm stroke to clear the main transport lane completely.
Vertical Crate Lifter
Raises goods crates weighing up to 200 kg in packaging lines, safely operating within a 2:1 mechanical lift margin.
Is the Airtac JSI Series Standard Cylinder JSI100X285S the Right Cylinder?
When sizing this 100 mm bore, stepping down to a JSI63 yields 1559 N of push at 0.5 MPa, whereas moving up to a JSI125 provides 6136 N. This model hits a strong middle ground for heavy payloads. Remember that a standard cylinder will drift if air pressure drops or the valve is centered, as the cushions only decelerate the piston near stroke ends rather than locking it; install an external rod lock or pilot-operated check valve if you must hold a suspended load. With a 285 mm stroke, ensure adequate guidance to prevent rod bending under side 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 JSI100X285S FAQ
At 0.5 MPa it provides 3927 N of push and 3574 N of pull. At 0.7 MPa those figures rise to 5497 N push and 5003 N pull, with a theoretical maximum of 801 kgf at 1.0 MPa. The air port size is G1/2, and the rod-end thread is M26x1.5.
The JIS-standard extruded aluminum barrel is shorter and more compact than a standard ISO 15552 cylinder of the same 100 mm bore, saving valuable machine footprint. The S suffix indicates a built-in piston magnet, allowing CMSE or DMSE sensors to be fitted into the side grooves for precise position detection.
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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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