Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X275-50S
The AirTAC Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X275-50S 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 JSIJ80X275-50S
Generating 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 lacks external restraining rods, making the overall body shorter and more compact than a same-bore ISO 15552 unit. It handles about 1508 N of real work safely, which translates to lifting roughly 128 kg vertically with a 2:1 margin.
The dash-50 code means an external stop screw lets you shorten the extend stroke on-site by up to 50 mm, giving a usable extend range of 225-275 mm while the retract end stays fixed. You can fine-tune the end position without physically swapping the cylinder. This -S SKU includes a built-in piston magnet for CMSE/DMSE sensors that drop directly into the side barrel grooves, and the air supply connects via a G3/8 port.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X275-50S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X275-50S |
|---|---|
| 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 JSIJ80X275-50S
| 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 JSIJ80X275-50S Is Used
Press Fit Tuning
Dial in the exact insertion depth of a bearing press by adjusting the extend window on-site, avoiding costly hard-stops or cylinder body swaps.
Variable Length Diverter
Adjust the extend stroke on a sorting gate to accommodate different package sizes on the fly, ensuring packages push cleanly without jamming.
Pallet Stop Adjustment
Fine-tune the stopping position of incoming pallets on a conveyor by tweaking the external adjuster, adapting to various pallet footprints instantly.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X275-50S the Right Cylinder?
When sizing, the neighbouring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore jumps to 3927 N, so this 80 mm unit sits perfectly in the middle for medium-heavy tasks. The adjustable stroke is highly useful when you need to tune the extend end position on-site or want a single shared spare across multiple stroke variants. JSIJ mounting options include FA, LB, TC, TCM1, and TCM2. Because this -S model has the magnet, you can fit CMSE/DMSE reed or electronic switches. For any stroke at or over 300 mm, always use a guide rail to prevent side-load damage to the piston rod.
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 JSIJ80X275-50S 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 air port size is G3/8.
The nominal 275 mm stroke is the maximum. The external stop screw lets you shorten the extend stroke by up to 50 mm on-site, giving a usable extend range of 225-275 mm. The retract end is fixed. This mechanism sets the end position and does not lock the load; for load holding on air loss, use an external rod lock or pilot-operated check valve.
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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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