Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X300-75S
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X300-75S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm 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.
- BoreØ63 mm
- Stroke300 mm
- Port sizeG3/8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM18×1.5
- 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 JSIJ63X300-75S
A built-in piston magnet (-S) allows CMSE or DMSE switches to drop directly into the side grooves for precise position sensing. The extruded hard-anodized aluminium barrel keeps the overall body shorter and more compact than an ISO 15552 cylinder of the same bore.
The external stop screw lets you shorten the extend stroke by up to 75 mm on site, giving a usable extend range of 225-300 mm while the retract end remains fixed. You can fine-tune the end position without changing the cylinder itself, and the G3/8 port matches the 63 mm bore standard. Adjustable air cushions of 29 mm at each end decelerate the moving load smoothly.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X300-75S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X300-75S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 300 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | G3/8 |
| Rod thread | M18×1.5 |
| 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1402 N | 1402 N |
| 0.7 MPa | 1962 N | 1962 N |
| Max (@1.0 MPa) | 286 kgf | |
JSIJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative).
Model Code: Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X300-75S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 63 | 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 JSIJ63X300-75S Is Used
Divert Gate Tuning
Fine-tune the extend stroke by up to 75 mm on-site to set the exact divert gate opening without swapping cylinders on the conveyor line.
Press Stroke Setup
Adjust the external stop screw to dial in the 225-300 mm extend position for light pressing tasks, accommodating different material thicknesses.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X300-75S the Right Cylinder?
The JSIJ mounting set includes Basic, FA, LB, TC, TCM1, and TCM2 options. Because this is a 300 mm stroke, you should support the load with external guides to prevent rod bending and side-load wear. The -S magnet version is required if you need electronic or reed position feedback. This adjustable-stroke design is ideal for sharing as a spare across multiple stroke variants, as you can tune the extend end-position on the fly.
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 JSIJ63X300-75S FAQ
The theoretical maximum force is 318 kgf at 1.0 MPa.
The external adjuster lets you shorten the extend stroke by up to 75 mm on site, yielding a usable extend range of 225-300 mm. The nominal 300 mm stroke is the maximum, and the retract end is fixed. This mechanism sets the end position but does not lock the load.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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