Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X400-40S
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X400-40S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 400mm 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
- Stroke400 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 JSIJ63X400-40S
The hard-anodized aluminum extruded barrel omits tie rods entirely, keeping the assembly light while housing a 20 mm piston rod, M18x1.5 rod-end thread, 29 mm adjustable air cushions at both ends, and a G3/8 port. Because this is the -S variant, a built-in piston magnet lets you drop CMSE or DMSE reed and electronic switches directly into the side sensor grooves.
The -40 code defines an external adjuster that lets you shorten the extend stroke on site by up to 40 mm, yielding a usable forward travel of 360 to 400 mm without swapping the cylinder; the retract end remains fixed. This on-site tuning is ideal for dialing in exact end positions, and the mechanism acts purely as a stop, not a load lock.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X400-40S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X400-40S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 400 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 JSIJ63X400-40S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 63 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×400 | 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 JSIJ63X400-40S Is Used
Divert Gate Tuning
Dial in the exact extend position of a sorting diverter on-site using the 40 mm adjuster window to match varying package sizes without machining new stops.
Pallet Stop Adjustment
Actuate a pallet stop gate in a compact JIS footprint, shortening the extend stroke by up to 40 mm to accommodate mixed pallet heights on the same line.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X400-40S the Right Cylinder?
The adjustable stroke shines when you need to fine-tune the extend end position on the machine or want a single shared spare across slightly different stroke variants. JSIJ mounting options cover Basic, FA, LB, TC, TCM1, and TCM2. Because the 400 mm stroke is fairly long, always support the rod against side loads with an external guide to prevent bending. Note that a plain cylinder drifts on air loss; use an external rod lock or pilot-operated check valve if the load must be held.
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 JSIJ63X400-40S 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. The air port is G3/8.
The nominal 400 mm stroke is the maximum. The external adjuster lets you shorten the extend stroke on-site by up to 40 mm, giving a usable forward travel of 360 to 400 mm. The retract end is fixed, and the stop screw sets the end position rather than locking the load.
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Standard models are processed and dispatched in 3-5 business days.
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