Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X275-20S
The AirTAC Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X275-20S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø80mm bore and 275mm 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
- Stroke275 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 JSIJ80X275-20S
Delivering 2513 N of push force at 0.5 MPa, this 80 mm bore JIS profile cylinder saves valuable machine space because its hard-anodized extruded aluminum barrel is noticeably shorter than a same-bore ISO 15552 unit. The integrated -S piston magnet allows CMSE or DMSE sensors to drop directly into the side grooves for precise position detection, while the G3/8 port handles the required air volume.
An external adjuster lets you shorten the extend stroke on-site by up to 20 mm, giving a usable range of 255 to 275 mm without changing the cylinder itself. This on-site tuning handles about 1508 N of real work safely, roughly 128 kg lifted vertically. Note that a plain cylinder drifts on air loss; the cushions only decelerate, so fit an external rod lock for held loads.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X275-20S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X275-20S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 275 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 JSIJ80X275-20S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 80 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×275 | 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 JSIJ80X275-20S Is Used
Transfer Push-Off
Fine-tune the 20 mm extend window to perfectly strike cartons of varying widths on a packaging line without repositioning the cylinder.
Press Dwell Adjustment
Dial in the exact 255 to 275 mm extend position for a light assembly press, ensuring consistent contact force across different material thicknesses.
Pallet Stop Gate
Set the precise stop height for diverter gates, using the magnetic sensors to confirm the retracted position before the next pallet advances.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X275-20S the Right Cylinder?
When sizing, the 63 mm bore offers 1559 N push at 0.5 MPa, while the 100 mm bore jumps to 3927 N, so the 80 mm sits perfectly for mid-range demands. The 20 mm adjustable window is ideal for final end-position tuning on the machine or keeping one shared spare across similar stroke variants. Mounting options include FA, LB, TC, TCM1, and TCM2. The built-in magnet supports CMSE/DMSE switches. Because the stroke is 275 mm, always guide the load to prevent side-loading and rod damage.
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 JSIJ80X275-20S FAQ
At 0.5 MPa it provides 2513 N push and 2268 N pull. At 0.7 MPa it provides 3518 N push and 3175 N pull. The theoretical maximum force is 513 kgf at 1.0 MPa. The air port is G3/8.
The 275 mm nominal stroke is the maximum. The external adjuster lets you shorten the extend stroke on-site by up to 20 mm, yielding a usable extend range of 255 to 275 mm. The retract end remains fixed, and the cushion only decelerates; it does not lock the load.
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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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