Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-20
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X50-20 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 JSIJ63X50-20
The hard-anodized aluminium barrel keeps the build light, and the G3/8 port matches the bore's flow needs.
The external stop screw lets you trim the extend stroke by up to 20 mm on site, dropping the usable forward travel from the 50 mm maximum down to 30 mm without swapping the cylinder. The retract end stays fixed. A plain SKU like this lacks a magnet and cannot take a CMSE or DMSE sensor, so order an -S variant if you need position detection.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-20 Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-20 |
|---|---|
| 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 JSIJ63X50-20
| 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 JSIJ63X50-20 Is Used
Clamp Stroke Tuning
Dial in the exact 30 to 50 mm forward clamping reach on site using the external adjuster to accommodate varying part tolerances.
Transfer Diverter
Set a precise extend stop to push cartons onto a side lane without overtravel, using the compact JIS body to save machine space.
Sealing Head Press
Trim the 50 mm stroke down to 35 mm to apply consistent sealing pressure, adjusting the end point quickly without changing hardware.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-20 the Right Cylinder?
The 20 mm adjuster is ideal for tuning end positions on site or sharing a single spare across slightly different short-stroke variants. Mount it via FA, LB, TC, TCM1 or TCM2 brackets. Because this is a non-magnet model, it cannot host a sensor. For any stroke over 300 mm, add an external guide rail to absorb side loads.
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 JSIJ63X50-20 FAQ
The theoretical maximum is 318 kgf at 1.0 MPa. This 63 mm bore uses a G3/8 port.
The nominal 50 mm extend stroke is the maximum. An external stop screw lets you shorten the forward travel by up to 20 mm on site, yielding a usable extend range of 30 to 50 mm. The retract end remains fixed. This mechanism sets the end position and does not lock the load.
Authorized Export Seller
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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