Airtac JSI Series Standard Cylinder JSI100X280S
The AirTAC Airtac JSI Series Standard Cylinder JSI100X280S is a genuine double acting JIS-standard air cylinder with a Ø100mm bore and 280mm 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
- Stroke280 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 JSI100X280S
Delivering 3927 N of push force at 0.5 MPa, this double-acting profile cylinder saves valuable machine space by being noticeably shorter than an ISO 15552 unit 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 a long, low-friction service life. The G1/2 air port and M26x1.5 rod thread handle high flow rates effortlessly.
Because the -S suffix equips the piston with a magnet, you can drop CMSE or DMSE reed and electronic switches directly into the side grooves for precise end-of-stroke detection. In practical terms, 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.
Airtac JSI Series Standard Cylinder JSI100X280S Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI100X280S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 280 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 JSI100X280S
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×280 | 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 JSI100X280S Is Used
Injection Mold Clamping
Provides the heavy 3927 N push force required to secure mid-sized injection mold halves, utilizing the 280 mm stroke to clear the tooling during part ejection.
Pallet Destacking
Lifts roughly 200 kg pallets vertically from a stack with a 2:1 safety margin, relying on the hard-anodized barrel for rugged daily warehouse cycling.
Press Feed Ejection
Ejects heavy stamped metal parts from a hydraulic press bed, using the built-in -S magnet and DMSE sensors to confirm full retraction before the next strip feeds.
Is the Airtac JSI Series Standard Cylinder JSI100X280S the Right Cylinder?
When sizing this 100 mm bore, stepping down to the JSI80 gives 2513 N push at 0.5 MPa, while the larger JSI125 provides 6136 N if you need maximum thrust. The included -S magnet is essential if your control system requires position sensing via CMSE or DMSE switches. For any suspended load, remember that exhausting the air or centering the valve causes the piston to drift, as the adjustable cushions only decelerate the rod near the end caps; integrate an external rod lock or pilot-operated check valve to hold position securely. At 280 mm of stroke, keep the load guided to prevent rod bending and premature seal wear from side-loading forces.
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 JSI100X280S 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, and the air port size is G1/2.
The JSI is a JIS-standard profile cylinder that is shorter and more compact than an ISO 15552 cylinder of the same 100 mm bore, saving machine footprint. It uses an extruded aluminum barrel without external rods and operates at speeds between 30 and 800 mm/s.
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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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