Airtac JSI Series Standard Cylinder JSI40X100
The AirTAC Airtac JSI Series Standard Cylinder JSI40X100 is a genuine double acting JIS-standard air cylinder with a Ø40mm bore and 100mm stroke, G1/4 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.
- BoreØ40 mm
- Stroke100 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM14×1.5
- CushionAdjustable, 20.5 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 JSI40X100
Delivering 628 N of push force at 0.5 MPa, the AirTAC JSI40X100 is a double-acting JIS-standard profile cylinder built for tight machinery layouts. It is deliberately shorter and more compact than an ISO 15552 cylinder of the same 40 mm bore, saving valuable space without losing thrust. 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.
Because this specific SKU lacks the -S magnet, it cannot accept CMSE or DMSE position switches. For sizing real work, plan for about 377 N of actual load at 0.5 MPa, which safely lifts roughly 32 kg vertically with a 2:1 margin. The unit features a G1/4 port, an M14x1.5 rod thread, and adjustable air cushions at both ends to smooth out the 100 mm stroke.
Airtac JSI Series Standard Cylinder JSI40X100 Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI40X100 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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, 20.5 mm |
| Max standard stroke | Up to 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 JSI40X100
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×100 | 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 JSI40X100 Is Used
Package Diverter Gate
Actuates a routing flap on a 200 mm wide packaging conveyor, using the 100 mm stroke to redirect light cartons at 30-800 mm/s.
Small Part Clamping
Secures aluminum housings during a CNC drilling cycle, applying up to 377 N of safe working force without distorting the workpiece.
Bin Lid Lifter
Raises the hinged lid on a parts-storage bin, easily handling the 15 kg cover with a comfortable 2:1 vertical lift safety margin.
Is the Airtac JSI Series Standard Cylinder JSI40X100 the Right Cylinder?
When sizing this 40 mm bore, stepping down to a 32 mm JSI drops the 0.5 MPa push force to 402 N, whereas moving up to a 50 mm bore increases it to 982 N. This JSI40X100 hits a practical middle ground for medium-duty clamping or lifting. Remember that a standard cylinder drifts if air pressure drops or the valve is centered; the end cushions only decelerate the piston near stroke end and do not act as a brake. For suspended loads that must hold position, add an external rod lock or a pilot-operated check valve. Since this SKU has no magnet, order a -S variant if you need electronic sensing.
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 JSI40X100 FAQ
This 40 mm bore cylinder uses a G1/4 air port. It generates 628 N push and 528 N pull at 0.5 MPa, 879 N push and 739 N pull at 0.7 MPa, with a theoretical maximum of 128 kgf at 1.0 MPa.
The JSI is a JIS-standard profile cylinder that is shorter and more compact than an ISO 15552 cylinder of the same bore. It uses an extruded aluminum barrel with no external rods, making it ideal for space-constrained machinery, though it is not dimensionally interchangeable with ISO 15552.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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