Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X125-30S
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X125-30S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 125mm 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
- Stroke125 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 JSIJ63X125-30S
The hard-anodized aluminum profile barrel leaves out external rods, making the body shorter and more compact than a same-bore ISO 15552 cylinder.
An external stop screw lets you trim the 125 mm extend stroke down by 30 mm, giving a usable range of 95 to 125 mm without swapping the cylinder. The G3/8 port feeds the 20 mm rod, and the -S suffix means a built-in magnet for CMSE/DMSE sensors.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X125-30S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X125-30S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 125 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 JSIJ63X125-30S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 63 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×125 | 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 JSIJ63X125-30S Is Used
Press Fit Tuning
Fine-tune the 125 mm extend stroke down by 30 mm on-site to set the exact seating depth for bearing press fits without changing hardware.
Variable Transfer Stops
Adjust the retract stop position dynamically for different package sizes on a single conveyor line using the external screw.
Pallet Positioning
Shift the extend end-point by up to 30 mm to accommodate varying pallet widths while using the integrated CMSE/DMSE sensor for confirmation.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X125-30S the Right Cylinder?
The -30 mm adjuster is ideal for sharing one spare across multiple stroke variants or fine-tuning the end position on-site. Mounting options include FA, LB, TC, TCM1, and TCM2. The -S magnet accepts CMSE/DMSE switches. For any stroke over 300 mm, guide the load to prevent side-load damage.
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 JSIJ63X125-30S FAQ
This 63 mm bore cylinder uses a G3/8 port.
The nominal 125 mm stroke is the maximum. An external stop screw lets you shorten the extend stroke by up to 30 mm on-site, yielding a usable range of 95 to 125 mm. The retract end remains fixed, and this mechanism only sets position; it 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.
Related AirTAC JSI Cylinders
Request a Quote for Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X125-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.