Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X400-20
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X400-20 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 JSIJ63X400-20
Its extruded hard-anodized aluminium barrel is noticeably shorter than an equivalent ISO 15552 unit, saving valuable machine space without losing thrust.
The external adjuster lets you trim the extend stroke by up to 20 mm on site, giving a usable 380-400 mm forward travel while the retract end stays fixed. Air connects via a G3/8 port, and adjustable 29 mm cushions decelerate the load at both ends.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X400-20 Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X400-20 |
|---|---|
| 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 JSIJ63X400-20
| 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 JSIJ63X400-20 Is Used
Transfer Push-off
Fine-tunes the 400 mm extend stop by 20 mm to push varying box sizes off a belt without repositioning the cylinder.
Press Dwell Adjustment
Dials in the exact bottoming position on a light assembly press, compensating for material thickness variations on site.
Pallet Stop Gate
Sets a precise retract stop for a pallet routing gate, allowing 20 mm of travel adjustment to clear different pallet heights.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X400-20 the Right Cylinder?
If 1559 N at 0.5 MPa is too much, step down to the 50 mm bore for 982 N; if you need more power, the 80 mm bore gives 2513 N. The 20 mm adjuster is ideal for sharing one spare across slight stroke variants and fine-tuning the end position without swapping the cylinder. Mounting options include FA, LB, TC, TCM1, and TCM2. Because this is a 400 mm stroke, always use external guides to prevent rod bending under side loads. Note this SKU lacks a magnet and cannot take CMSE or DMSE sensors; choose the -S variant for position detection.
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 JSIJ63X400-20 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. It uses a G3/8 port and a 20 mm rod with an M18x1.5 thread.
The nominal 400 mm stroke is the maximum. An external stop screw lets you shorten the extend stroke by up to 20 mm on site, giving a usable forward travel of 380-400 mm. The retract end remains fixed. This mechanism sets the end position and does not lock the load; use an external rod lock or pilot-operated check valve to hold a load.
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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.
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Most inquiries answered within 7-8 hours.
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