Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X125-10S
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X125-10S 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 JSIJ63X125-10S
The integrated -S piston magnet allows direct mounting of CMSE or DMSE reed and electronic switches into the side grooves for precise position detection.
A built-in external adjuster provides a 10 mm extend-shortening window, letting you fine-tune the usable forward stroke from 115 to 125 mm on-site without swapping the cylinder, while the retract end remains fixed. Pneumatically driven through a G3/8 port, it relies on adjustable 29 mm air cushions to decelerate the load near the ends, though a plain cylinder drifts on air loss and requires an external rod lock for true load holding.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X125-10S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X125-10S |
|---|---|
| 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 JSIJ63X125-10S
| 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 JSIJ63X125-10S Is Used
Clamp Stroke Trimming
Dial in the exact 118 mm forward clamp position on-site using the 10 mm adjuster to compensate for varying workpiece thicknesses without reprogramming the machine.
Transfer Pusher Tuning
Fine-tune the extend endpoint of a parts pusher by a few millimeters to align perfectly with a moving conveyor lane, ensuring positive handoffs without hard mechanical stops.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X125-10S the Right Cylinder?
When sizing this unit, stepping down to a 50 mm bore drops the 0.5 MPa push force to 982 N, while moving up to an 80 mm bore increases it to 2513 N, giving you clear boundaries for your 63 mm choice. The 10 mm extend adjuster is ideal for sharing one spare cylinder across multiple stroke variants or finalizing end positions during machine commissioning. You can mount it via Basic, FA, LB, TC, TCM1, or TCM2 brackets. Because the -S suffix denotes the built-in magnet, CMSE and DMSE sensors install seamlessly. For any stroke reaching 125 mm here, ensure you guide the load externally to prevent 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 JSIJ63X125-10S FAQ
At 0.5 MPa this 63 mm bore cylinder 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, and it uses a G3/8 air port.
The nominal 125 mm extend stroke is the maximum. An external stop screw lets you shorten the forward stroke by up to 10 mm on-site, giving a usable extend range of 115 to 125 mm for fine-tuning end positions. The retract end remains fixed.
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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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