Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X250-20
The AirTAC Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X250-20 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø80mm bore and 250mm 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
- Stroke250 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 JSIJ80X250-20
Delivering 2513 N of push force at 0.5 MPa, this 80 mm bore pneumatic actuator brings on-site flexibility to demanding operations. The hard-anodized aluminum profile barrel makes it shorter and more compact than a same-bore ISO 15552 cylinder. It handles about 1508 N of real work safely, which translates to roughly 128 kg lifted vertically.
The external adjuster lets you shorten the extend stroke by up to 20 mm on-site, giving a usable range of 230 to 250 mm without swapping the cylinder. Air flows through a G3/8 port, and adjustable cushions decelerate the load at both ends. Note that this plain SKU lacks a magnet and cannot take a CMSE or DMSE sensor.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X250-20 Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X250-20 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 250 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 JSIJ80X250-20
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 80 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×250 | 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 JSIJ80X250-20 Is Used
Press Stroke Tuning
Dial in the exact 230 to 250 mm extend contact point on an assembly press using the external adjuster without removing the cylinder.
Diverter Gate Positioning
Fine-tune the actuator end-stop on a sorting line to accommodate varying package sizes on-site, ensuring precise routing.
Pallet Stop Adjustment
Shorten the extend stroke by 20 mm to create a custom nesting gap for pallets without re-engineering the machine frame.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X250-20 the Right Cylinder?
When sizing this 80 mm bore, the adjacent 63 mm option yields 1559 N push at 0.5 MPa, while the 100 mm bore jumps to 3927 N. The 20 mm extend-shortening window is ideal for fine-tuning end positions on-site or sharing a single spare across slightly different stroke variants. Mounting choices include FA, LB, TC, TCM1, and TCM2. Because the 250 mm stroke exceeds 300 mm when combined with side loads, always guide the rod to prevent binding. Finally, this non-magnetic SKU cannot accept position sensors.
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 JSIJ80X250-20 FAQ
At 0.5 MPa it pushes 2513 N and pulls 2268 N. At 0.7 MPa it pushes 3518 N and pulls 3175 N. The theoretical maximum force is 513 kgf at 1.0 MPa. It uses a G3/8 port and a 25 mm rod.
The nominal 250 mm stroke is the maximum. The external stop screw lets you shorten the extend stroke by up to 20 mm on-site, yielding a usable range of 230 to 250 mm. The retract end remains fixed. This mechanism sets the end position and 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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