Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X125-100
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X125-100 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 JSIJ63X125-100
The hard-anodized aluminum barrel keeps the total length shorter than a same-bore ISO 15552 unit, and the G3/8 port matches the bore standard.
The -100 code means you can trim the nominal 125 mm extend down to a 25 mm usable stroke without changing the cylinder itself, while the retract end remains fixed. Note that this plain SKU lacks a magnet and cannot take a CMSE or DMSE sensor. Also, the adjustable air cushions only decelerate the piston near the ends; they do not hold a load on air loss, so fit an external rod lock or pilot-operated check valve if you need the axis to stay put.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X125-100 Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X125-100 |
|---|---|
| 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 JSIJ63X125-100
| 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 JSIJ63X125-100 Is Used
Press Fit Tuning
Dial in the exact 25 to 125 mm extend position on site to seat bearings without swapping the entire actuator.
Variable Transfer Stop
Adjust the extend stroke externally to accommodate different package widths on a single sorting line.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X125-100 the Right Cylinder?
The 100 mm adjustable window is ideal when you need to fine-tune the extend end position on the machine or want a single shared spare across slightly different stroke variants. You can mount it using the FA, LB, TC, TCM1, or TCM2 brackets. Because this model has no -S suffix, it cannot accept a magnetic switch. For any stroke length at or above 300 mm, always guide the load to prevent excessive side-load wear on 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 JSIJ63X125-100 FAQ
At 0.5 MPa it pushes 1559 N and pulls 1402 N. At 0.7 MPa the push is 2182 N and the pull is 1962 N. The theoretical maximum force is 318 kgf at 1.0 MPa.
The -100 indicates a 100 mm external adjuster window. You can shorten the nominal 125 mm extend stroke down to a minimum of 25 mm on site, while the retract end remains fixed.
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 JSIJ63X125-100
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.