Airtac JSI Series Standard Cylinder JSI32X85S
The AirTAC Airtac JSI Series Standard Cylinder JSI32X85S is a genuine double acting JIS-standard air cylinder with a Ø32mm bore and 85mm 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
- Stroke85 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 JSI32X85S
Generating 402 N of push force at 0.5 MPa, the AirTAC JSI32X85S is a JIS-standard double-acting profile cylinder built for tight machinery layouts. Its extruded hard-anodized aluminum barrel skips external rods entirely, making the unit significantly shorter and more compact than an ISO 15552 cylinder of the same 32 mm bore. The bore dictates a G1/8 port and an M10x1.25 rod thread, while a heterogeneous two-way piston seal retains grease for a long, low-friction service life.
Because this SKU includes the -S magnet, you can drop CMSE or DMSE reed and electronic switches directly into the side sensor grooves for position detection. For real-world sizing, plan for about 241 N of actual work at 0.5 MPa (roughly 60 percent of the rated push), which translates to lifting about 20 kg vertically with a 2:1 safety margin.
Airtac JSI Series Standard Cylinder JSI32X85S Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI32X85S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 85 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 JSI32X85S
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 32 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×85 | 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 JSI32X85S Is Used
Small Part Ejection
Ideal for pushing lightweight molded plastic parts out of an injection molding die using its 20 kg safe vertical lift capacity.
Packaging Diverter
Deploys an 85 mm stroke to knock small cartons off a packaging line at speeds up to 800 mm/s.
Clamp Actuation
Secures delicate electronic PCBs during soldering, where the compact 32 mm profile saves valuable fixture space.
Is the Airtac JSI Series Standard Cylinder JSI32X85S the Right Cylinder?
If you need slightly less force, there is no smaller JSI bore available, so you would need to look outside the series; if your application requires more power, stepping up to the JSI40X85S provides 628 N of push at 0.5 MPa. This 85 mm stroke is well under the 300 mm side-load threshold, so standard mounting is fine. You can use LB foot, FA/FB flange, CA/CB/CR clevis, TC/TCM1/TCM2 trunnion brackets, or I/Y/F/U rod knuckles. Remember that the adjustable air cushion only decelerates the piston near the end of stroke; it will not hold a load if air pressure drops or the valve is centered. For vertical loads that must not drift, add an external rod lock or a pilot-operated check valve.
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 JSI32X85S FAQ
The 32 mm bore features a G1/8 port, an M10x1.25 rod thread, and a 12 mm rod. It delivers 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 intentionally shorter and more compact than an ISO 15552 cylinder of the same bore. It is not dimensionally interchangeable with ISO 15552, but the space saving is a major advantage on dense machines.
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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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