Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-50S
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X50-50S 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 JSIJ63X50-50S
It is shorter and more compact than a same-bore ISO 15552 unit. The hard-anodized aluminum barrel keeps the assembly light. A G3/8 port supplies air, and the M18x1.5 rod end threads into your tooling.
The JSIJ63X50-50S features an external stop screw that lets you shorten the extend stroke on-site by up to 50 mm. You can fine-tune the end position without swapping the cylinder. The nominal 50 mm stroke is the maximum, while the retract end stays fixed. The -S suffix means a built-in piston magnet is present, ready for CMSE or DMSE switches in the side grooves.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-50S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-50S |
|---|---|
| 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 JSIJ63X50-50S
| 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 JSIJ63X50-50S Is Used
Clamp Position Trimming
Dial in the exact clamping depth on a fixture by shortening the extend stroke up to 50 mm on-site without machining new spacers.
Transfer Gate Stop
Use the adjustable end position to tune a diverter gate precisely, accommodating varying product sizes on the line.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-50S the Right Cylinder?
This 63 mm model hits a strong middle ground. The adjustable stroke is ideal when you need to share one spare across several stroke variants or dial in a final end position on-site. Mounting options include FA, LB, TC, TCM1, and TCM2. The included magnet supports CMSE/DMSE sensors. Because the stroke is 50 mm, side-load risks are low, but always guide the rod for any application exceeding 300 mm. Remember that the stop screw sets position only; use an external rod lock or pilot-operated check valve to hold a load against air loss.
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 JSIJ63X50-50S 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. It uses a G3/8 air port.
The external stop screw lets you shorten the extend stroke by up to 50 mm on-site. The nominal 50 mm stroke is the maximum, giving a usable extend range of 0 to 50 mm. The retract end is fixed. This mechanism sets the end position and is not a load lock.
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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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