Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-20S
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X50-20S 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 JSIJ63X50-20S
The hard-anodized aluminum extrusion is notably shorter than a same-bore ISO 15552 unit, saving machine footprint without losing strength. A built-in piston magnet equips the -S variant for CMSE or DMSE sensors that mount directly into the side grooves.
The -20 code means an external stop screw lets you trim the extend stroke by up to 20 mm on site. With a 50 mm nominal maximum, you get a usable 30 to 50 mm extend window for fine-tuning end positions without swapping the cylinder. The retract end stays fixed. Pneumatic connections use a G3/8 port.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-20S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-20S |
|---|---|
| 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 JSIJ63X50-20S
| 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 JSIJ63X50-20S Is Used
Clamp Stroke Tuning
Dial in the exact clamping reach on machining fixtures by trimming the extend stroke up to 20 mm on site.
Transfer Diverter
Adjust the pusher extension precisely to divert different package sizes without changing the actuator body.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-20S the Right Cylinder?
This 63 mm model hits a solid middle ground. The adjustable stroke is ideal when you need to synchronize multiple actuators or dial in a precise end position on the factory floor. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. The included magnet supports CMSE and DMSE switches. Because the nominal stroke is only 50 mm, side-load risks are minimal, but any application exceeding 300 mm stroke requires a external guide to protect the rod seal.
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 JSIJ63X50-20S FAQ
At 0.5 MPa it pushes 1559 N and pulls 1402 N. At 0.7 MPa it pushes 2182 N and pulls 1962 N. The theoretical maximum force is 318 kgf at 1.0 MPa.
The -20 code provides an external adjuster that shortens the extend stroke by up to 20 mm on site. The nominal 50 mm stroke is the maximum, yielding a usable 30 to 50 mm extend range, while the retract end remains fixed. This mechanism only sets the end position and does not hold the load on air loss.
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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