Airtac JSI Series Standard Cylinder JSI32X70
The AirTAC Airtac JSI Series Standard Cylinder JSI32X70 is a genuine double acting JIS-standard air cylinder with a Ø32mm bore and 70mm 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
- Stroke70 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 JSI32X70
Generating 402 N of push force at 0.5 MPa, this 32 mm bore double-acting cylinder suits light automation. The JSI32X70 is a JIS-standard profile unit, meaning its extruded hard-anodized aluminum barrel makes it shorter and more compact than an ISO 15552 cylinder of the same bore. The two-way piston seal retains grease for low-friction life.
Because this SKU lacks the -S magnet, it cannot take a CMSE or DMSE sensor. Plan for about 241 N of real work at 0.5 MPa, which lifts roughly 20 kg vertically with a 2:1 margin. It features a G1/8 port, an M10x1.25 rod thread, and 20 mm adjustable air cushions at both ends to decelerate the piston smoothly.
Airtac JSI Series Standard Cylinder JSI32X70 Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI32X70 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 70 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 JSI32X70
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 32 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×70 | 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 JSI32X70 Is Used
Small Part Ejection
Pushes lightweight plastic mouldings out of an injection press with 402 N of force at 0.5 MPa.
Package Diverting
Actuates a 70 mm stroke diverter arm to sort small cardboard cartons on a packaging line.
Clamp Actuation
Secures delicate electronic housings during ultrasonic welding without crushing the components.
Is the Airtac JSI Series Standard Cylinder JSI32X70 the Right Cylinder?
This 70 mm stroke model fits between the standard 50 mm and 75 mm strokes. If you need less force, the JSI series has no smaller bore, so you would look outside the family. If your application requires more power, step up to the 40 mm bore, which provides 628 N of push at 0.5 MPa. Since this specific SKU has no -S magnet, position sensing is impossible without switching to the JSI32X70-S variant.
The adjustable cushions only slow the piston near stroke end and do not act as a brake. If your machine loses air, the rod will drift; to hold a load securely, 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 JSI32X70 FAQ
The JSI32X70 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. The air port is G1/8 and the rod thread is M10x1.25. It operates at speeds between 30 and 800 mm/s.
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 hard-anodized aluminum barrel with no external rods, saving space on tight machines. Note that this specific SKU lacks the -S magnet, so it cannot accept CMSE or DMSE sensors.
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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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