Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-40
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X50-40 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 50mm 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
- Stroke50 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 JSIJ63X50-40
The extruded hard-anodized aluminium barrel makes it shorter and more compact than a same-bore ISO 15552 unit. Air connects via a G3/8 port.
The JSIJ63X50-40 uses an external stop screw to shorten the extend stroke on-site by up to 40 mm. The nominal 50 mm stroke remains the maximum, giving a usable extend range of 10-50 mm, while the retract end stays fixed. This lets you fine-tune the end position without swapping the cylinder. Note that this plain SKU lacks a magnet and cannot take CMSE/DMSE sensors. The air cushion only decelerates the piston near stroke end; it does not hold the load on air loss, so fit an external rod lock or pilot-operated check valve for suspended loads.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-40 Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-40 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 50 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 JSIJ63X50-40
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 63 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×50 | 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 JSIJ63X50-40 Is Used
Clamp Stroke Trimming
Dial in the exact clamping depth on machining fixtures by backing out the external stop screw, shortening the extend stroke from the 50 mm maximum down to 10 mm without changing mounts.
Variable Transfer Pusher
Adjust the pusher extension on the line to handle different carton widths on the fly, using the 40 mm on-site shortening window to prevent over-travel.
Compact Divert Arm
Fit a diverting arm into a tight conveyor gap using this shorter JIS profile cylinder, tuning the actuation reach precisely to the sorter lane.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-40 the Right Cylinder?
This 63 mm model hits a solid middle ground at 1559 N. The 40 mm adjustable window is ideal when you need to share one spare cylinder across several stroke variants or trim the extend end-position on-site. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. Because this is a non-magnetized SKU, you cannot mount position sensors; specify the -S variant if you need CMSE/DMSE switches. For any stroke reaching 300 mm or more, always guide the load to prevent side-load damage to the rod seals.
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 JSIJ63X50-40 FAQ
The theoretical maximum force is 318 kgf at 1.0 MPa. The air port size is G3/8.
The external adjuster lets you shorten the extend stroke on-site by up to 40 mm. The nominal 50 mm stroke is the maximum, yielding a usable extend range of 10-50 mm. The retract end is fixed. This mechanism sets the end position and does not lock the load.
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Standard models are processed and dispatched in 3-5 business days.
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