Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X25-30
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X25-30 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 25mm 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
- Stroke25 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 JSIJ63X25-30
The nominal 25 mm travel represents the maximum, and the -30 code means you can fine-tune the usable extend down to zero without swapping the unit. Built with an extruded hard-anodized aluminum barrel, it is noticeably shorter and more compact than a same-bore ISO 15552 cylinder. The G3/8 air port feeds the double-acting double rod, and adjustable 29 mm air cushions decelerate the piston at both ends.
Because this specific SKU lacks the -S magnet option, it cannot accept CMSE or DMSE sensors for position detection. The external stop screw sets the end position but does not lock the load; if air drops, the piston drifts, so fit an external rod lock or pilot-operated check valve for holding. Operating pressure spans 0.15 to 1.0 MPa across a -20 to +70 C range, with a proof pressure of 1.5 MPa.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X25-30 Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X25-30 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 25 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 JSIJ63X25-30
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 63 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×25 | 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 JSIJ63X25-30 Is Used
Short-Stroke Clamping
Dial in the exact 0-25 mm clamp reach on site to compensate for material thickness variations without remounting the actuator.
Transfer Stopper
Adjust the stop position on the fly for different product sizes on a line, relying on the compact JIS profile to save space.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X25-30 the Right Cylinder?
When sizing this actuator, stepping down to the 50 mm bore drops the 0.5 MPa push force to 982 N, while stepping up to the 80 mm bore raises it to 2513 N. The adjustable stroke is ideal for sharing a single spare across multiple stroke variants or dialing in a precise end position during machine commissioning. You can mount it via Basic, FA, LB, TC, TCM1, or TCM2 brackets. For any stroke at or over 300 mm, guide the load externally to prevent side-load wear on the rod seals. Remember that a plain cylinder without a magnet cannot support sensors, so specify the -S variant if you need CMSE or DMSE switches.
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 JSIJ63X25-30 FAQ
The theoretical maximum force is 318 kgf at 1.0 MPa. This 63 mm bore unit uses a G3/8 air port, a 20 mm rod, an M18x1.5 rod thread, and 29 mm adjustable cushions.
The nominal 25 mm stroke is the maximum extend length. The -30 code provides an external adjuster window that lets you shorten the extend stroke by up to 30 mm on site, meaning the usable extend range is 0 to 25 mm. The retract end remains fixed, and this stop mechanism only sets position rather than holding 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 JSIJ63X25-30
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.