Airtac JSI Series Standard Cylinder JSI32X270S
The AirTAC Airtac JSI Series Standard Cylinder JSI32X270S is a genuine double acting JIS-standard air cylinder with a Ø32mm bore and 270mm 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
- Stroke270 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 JSI32X270S
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 a same-bore 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. Because the -S suffix equips this unit with a piston magnet, you can drop CMSE or DMSE reed and electronic switches directly into the side grooves for position sensing.
In practical terms, plan for about 241 N of real work at 0.5 MPa, which translates to lifting roughly 20 kg vertically with a 2:1 safety margin. Air enters via the G1/8 port, driving the 12 mm carbon steel rod (hard-chrome plated) at speeds between 30 and 800 mm/s. Adjustable 20 mm air cushions at both ends decelerate the piston smoothly near stroke end.
Airtac JSI Series Standard Cylinder JSI32X270S Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI32X270S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 270 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 JSI32X270S
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 32 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×270 | 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 JSI32X270S Is Used
Small Part Ejection
Pushes lightweight plastic molded parts out of an injection press using 402 N of force, with the -S magnet confirming ejection via a DMSE sensor.
Package Diverting
Actuates a routing gate on a compact packaging conveyor where the shorter JIS profile saves critical clearance compared to ISO 15552 units.
Clamp Actuation
Secures thin sheet metal in a spot-welding fixture, safely lifting about 20 kg vertically when clamps need to swing clear for loading.
Is the Airtac JSI Series Standard Cylinder JSI32X270S the Right Cylinder?
When sizing this 32 mm bore, stepping down is not an option as it is the smallest available JSI, but moving up to the 40 mm bore increases the 0.5 MPa push force to 628 N if your application demands more authority. For this 270 mm stroke, ensure external guide rails are used to absorb side loads and prevent rod bending, as long strokes naturally amplify lateral forces. Remember that a standard cylinder drifts if air pressure is lost or the valve is centered; the air cushion only decelerates the piston and does not act as a lock. To hold a load securely in place during an air loss event, fit an external rod lock or a pilot-operated check valve. Mounting options include LB foot, FA/FB flange, CA/CB/CR clevis, TC/TCM1/TCM2 trunnion, or an I/Y/F/U rod knuckle.
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 JSI32X270S FAQ
This 32 mm bore cylinder features a G1/8 air port and generates 402 N push / 345 N pull at 0.5 MPa, 563 N push / 483 N pull at 0.7 MPa, and a theoretical maximum of 82 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 32 mm bore. It uses an extruded aluminum barrel without external rods to achieve this space saving.
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Standard models are processed and dispatched in 3-5 business days.
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