Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X300-50
The AirTAC Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X300-50 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø80mm bore and 300mm 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
- Stroke300 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 JSIJ80X300-50
Delivering 2513 N of push force at 0.5 MPa, this 80 mm bore JIS profile cylinder is built for heavy-duty positioning. Its extruded hard-anodized aluminum barrel makes it shorter and more compact than a same-bore ISO 15552 unit. The G3/8 port feeds the 25 mm piston rod to handle substantial loads.
The external adjuster lets you shorten the extend stroke on-site by up to 50 mm, meaning usable extension is 250-300 mm while the retract end stays fixed. You can fine-tune the end position without swapping the cylinder, and it safely handles about 1508 N of real work, roughly 128 kg lifted vertically. Note this SKU lacks a magnet and cannot take a CMSE or DMSE sensor.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X300-50 Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X300-50 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 300 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 JSIJ80X300-50
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 80 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×300 | 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 JSIJ80X300-50 Is Used
Press Stroke Tuning
Dial in the exact 250-300 mm extend contact point on an assembly press without machining new spacers.
Divertor Adjustment
Shift a heavy product divertor arm by up to 50 mm on-site to accommodate different package widths.
Pallet Stopper Gate
Fine-tune the retract and extend stop distance for varying pallet sizes on a high-force loading line.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X300-50 the Right Cylinder?
For sizing, the neighboring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore steps up to 3927 N, giving you clear scaling options. The adjustable stroke is ideal for sharing one spare across stroke variants or tuning end positions on-site. Mounting options include FA, LB, TC, TCM1, and TCM2. Because the stroke is 300 mm, use an external guide to prevent rod bending under side loads. This non-magnetic version cannot support position sensing.
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 JSIJ80X300-50 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 nominal 300 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 range of 250-300 mm. The retract end is fixed, and this stop only sets position, 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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