Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-20S
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X350-20S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 350mm 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
- Stroke350 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 JSIJ63X350-20S
The hard-anodized aluminum extruded barrel makes it shorter and more compact than a same-bore ISO 15552 unit, while the G3/8 port supplies ample air flow. The -S suffix adds a piston magnet for direct CMSE or DMSE reed and electronic switches.
The -20 code means an external stop screw lets you shorten the extend stroke by up to 20 mm, giving a usable range of 330 to 350 mm without swapping the cylinder. Note that the retract end is fixed, and the stop screw sets position only; it does not lock the load on air loss.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-20S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-20S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 350 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 JSIJ63X350-20S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 63 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×350 | 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 JSIJ63X350-20S Is Used
Divert Gate Tuning
Fine-tunes a 330 to 350 mm extend stroke on a sorting line diverter without machining new hard stops.
Multi-Position Clamping
Adjusts the extend endpoint on-site to clamp parts of slightly varying widths on a shared fixture.
Pallet Stop Adjustment
Shortens the extend stroke by up to 20 mm to accommodate different pallet depths without changing the cylinder.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-20S the Right Cylinder?
The adjustable stroke is ideal when you need to fine-tune the extend endpoint across multiple stations or keep one shared spare for slightly different stroke variants. Mounting options include FA, LB, TC, TCM1, and TCM2. Because the stroke is 350 mm, always use an external guide rail to prevent rod bending and side-load damage. The included magnet supports CMSE/DMSE sensors.
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 JSIJ63X350-20S FAQ
The theoretical maximum force is 318 kgf at 1.0 MPa. The air port is G3/8.
The nominal 350 mm stroke is the maximum. An external stop screw lets you shorten the extend stroke by up to 20 mm on site, yielding a usable range of 330 to 350 mm. The retract end is fixed, and the stop only sets position; it does not hold the load on air loss.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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