Airtac JSI Series Standard Cylinder JSI32X250STC
The AirTAC Airtac JSI Series Standard Cylinder JSI32X250STC is a genuine double acting JIS-standard air cylinder with a Ø32mm bore and 250mm stroke, G1/8 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.
- BoreØ32 mm
- Stroke250 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 20 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 JSI32X250STC
Delivering 402 N of push force at 0.5 MPa, this double-acting JIS-standard profile cylinder saves valuable machine space by being noticeably shorter than an equivalent ISO 15552 unit of the same 32 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.
Because the SKU includes the S suffix, a built-in piston magnet is fitted, allowing CMSE or DMSE electronic switches to drop directly into the side grooves for position sensing. Plan for roughly 241 N of actual work at 0.5 MPa, which translates to lifting about 20 kg vertically with a 2:1 safety margin. The unit features a G1/8 port, an M10x1.25 rod thread, and adjustable 20 mm air cushions at both ends to decelerate the piston smoothly.
Airtac JSI Series Standard Cylinder JSI32X250STC Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI32X250STC |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 250 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 mm |
| Max standard stroke | Up to 1000 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 JSI32X250STC
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 32 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×250 | 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 JSI32X250STC Is Used
Small Parts Clamping
Ideal for securing light electronics housings or plastic components on an assembly fixture, utilizing the 20 kg vertical lift capacity with a safe margin.
Package Diverting
Deployed on a packaging line to push small cartons onto a secondary belt, where the compact profile fits neatly within tight conveyor frame clearances.
Pneumatic Ejection
Used to eject molded plastic parts from a small press, relying on the adjustable 20 mm cushions to prevent end-cap impact at operating speeds up to 800 mm/s.
Is the Airtac JSI Series Standard Cylinder JSI32X250STC the Right Cylinder?
As the smallest bore in the JSI range, there is no smaller option if 402 N of push at 0.5 MPa proves insufficient; you would step up to the 40 mm bore, which provides 628 N. The 250 mm stroke is well within the 1000 mm standard limit, though at this length you should ensure adequate guide support to prevent rod bending and premature seal wear from side loads. The TC trunnion mount supplied is ideal for pivoting applications, but remember that a plain cylinder drifts when air is lost or the valve is centered—the cushion only decelerates near stroke end, so add an external rod lock or pilot-operated check valve if you need to hold a load safely.
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 JSI32X250STC FAQ
This 32 mm bore model uses a G1/8 air port and an M10x1.25 rod thread. It generates 402 N push and 345 N pull at 0.5 MPa, 563 N push and 483 N pull at 0.7 MPa, with a theoretical maximum of 82 kgf at 1.0 MPa.
It is a JIS-standard profile cylinder that is shorter and more compact than an ISO 15552 cylinder of the same 32 mm bore, saving space without losing force. The extruded aluminum barrel design also eliminates external rods for a cleaner profile.
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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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