Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X350-20S
The AirTAC Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X350-20S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø80mm bore and 350mm stroke, G3/8 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.
- BoreØ80 mm
- Stroke350 mm
- Port sizeG3/8
- Acting typeDouble acting, adjustable stroke
- Rod threadM22×1.5
- CushionAdjustable, 29 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 JSIJ63~80 Adjustable Cylinder JSIJ80X350-20S
Delivering 2513 N of push force at 0.5 MPa, this 80 mm bore JIS profile cylinder brings compact power to pneumatic setups. The extruded hard-anodized aluminium barrel omits external rods, making the overall body shorter than a same-bore ISO 15552 unit. A G3/8 port feeds the chamber, while adjustable 29 mm air cushions decelerate the piston at both ends. Because of the -S suffix, a built-in piston magnet is included for CMSE/DMSE position switches.
The -20 code defines an external stop-screw window that shortens the extend stroke on-site by up to 20 mm. You get a usable extend range of 330-350 mm, with 350 mm as the maximum travel and a fixed retract end. This lets you fine-tune the end position without physically swapping the cylinder. In practical terms, the bore handles about 1508 N of real work safely, which translates to roughly 128 kg lifted vertically with a 2:1 margin.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X350-20S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X350-20S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 350 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G3/8 |
| Rod thread | M22×1.5 |
| 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, 29 mm |
| Max standard stroke | Up to 1500 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X350-20S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 80 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×350 | 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 JSIJ63~80 Adjustable Cylinder JSIJ80X350-20S Is Used
Divert Gate Tuning
Fine-tunes the extend position of a sorting diverter on-site by up to 20 mm to accommodate varying package sizes without changing the cylinder.
Press Positioning
Adjusts the downstroke end-stop for a light assembly press, allowing precise height calibration directly at the machine frame.
Pallet Stopper
Acts as an adjustable pallet arrestor on a roller conveyor, where the external screw sets the exact stopping distance for different load types.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X350-20S the Right Cylinder?
When sizing this actuator, look at both neighbours: a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore jumps to 3927 N. The 80 mm bore sits comfortably in the middle for medium-heavy duty. The adjustable stroke is ideal when you need on-site end-position tuning or want a shared spare across slightly different stroke variants. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2. The -S magnet supports CMSE/DMSE sensors in the side grooves. Because the stroke is 350 mm, always use external guides to prevent rod bending and manage side loads.
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 JSIJ63~80 Adjustable Cylinder JSIJ80X350-20S FAQ
At 0.5 MPa it provides 2513 N push and 2268 N pull. At 0.7 MPa it delivers 3518 N push and 3175 N pull. The theoretical maximum force is 513 kgf at 1.0 MPa.
The external adjuster lets you shorten the extend stroke by up to 20 mm on-site, giving a usable range of 330-350 mm. The nominal 350 mm is the maximum travel, and the retract end remains fixed. This mechanism sets the end position and does not lock the load.
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