Airtac JSI Series Standard Cylinder JSI40X100STC
The AirTAC Airtac JSI Series Standard Cylinder JSI40X100STC 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 JSI40X100STC
Delivering 628 N of push force at 0.5 MPa, the AirTAC JSI40X100STC is a double-acting JIS-standard profile cylinder built for tight machinery layouts. Because it uses an extruded hard-anodized aluminum barrel instead of external rods, the overall envelope is noticeably shorter and more compact than a same-bore ISO 15552 unit. The G1/4 air port and M14x1.5 rod thread handle the pneumatic supply and mechanical connections, while a two-way NBR piston seal retains grease for extended, low-friction service life.
For practical sizing, plan for about 377 N of real work at 0.5 MPa, which translates to lifting roughly 32 kg vertically with a 2:1 safety margin. The -S suffix denotes a built-in piston magnet, allowing CMSE or DMSE switches to drop directly into the side sensor grooves for position detection. Adjustable 20.5 mm air cushions at both ends absorb kinetic energy near the stroke limits, ensuring smooth stops across the 30-800 mm/s operating speed range.
Airtac JSI Series Standard Cylinder JSI40X100STC Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI40X100STC |
|---|---|
| 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 JSI40X100STC
| 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 JSI40X100STC Is Used
Package Diverting Arm
Actuates a routing flap on a 30-800 mm/s packaging conveyor to sort parcels weighing up to 32 kg.
Small Press Ejection
Pushes finished metal stamped parts out of a die using 377 N of safe working force at 0.5 MPa.
Component Clamping
Secures aluminum housings during a light CNC machining cycle via the TC trunnion pivot mount.
Is the Airtac JSI Series Standard Cylinder JSI40X100STC the Right Cylinder?
When sizing this 40 mm bore, compare it against the adjacent JSI series options: step down to a 32 mm bore for 402 N push at 0.5 MPa if your load is lighter, or move up to a 50 mm bore for 982 N if you need substantially more thrust. The included TC trunnion mount provides a pivot axis at the cylinder body, ideal for articulated mechanisms. Remember that a standard pneumatic cylinder drifts when air is lost or the valve is centered; the cushions only decelerate the piston near the end of stroke and will not lock the load. To hold a vertical load safely, integrate an external rod lock or a pilot-operated check valve into your circuit.
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 JSI40X100STC FAQ
At 0.5 MPa it provides 628 N push and 528 N pull. At 0.7 MPa it provides 879 N push and 739 N pull. The theoretical maximum force is 128 kgf at 1.0 MPa. The air port size is G1/4.
It is a JIS-standard profile cylinder that is shorter and more compact than an ISO 15552 cylinder of the same 40 mm bore. The S suffix means it has a built-in piston magnet, which is required to use CMSE or DMSE electronic or reed switches in the side grooves.
Authorized Export Seller
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.
Related AirTAC JSI Cylinders
Request a Quote for Airtac JSI Series Standard Cylinder JSI40X100STC
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.