Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-20
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X350-20 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 JSIJ63X350-20
An external adjuster lets you shorten the extend stroke by up to 20 mm, giving a usable range of 330 to 350 mm while the retract end stays fixed. The hard-anodized aluminium barrel keeps the body more compact than a same-bore ISO 15552 unit. Air connects via a G3/8 port.
This double-acting double-rod actuator runs at 30-800 mm/s with 29 mm adjustable air cushions at both ends. Because this specific SKU lacks the -S magnet option, it cannot accept CMSE or DMSE sensors. Note that the adjustable stop sets the end position but does not lock the load; you will need an external rod lock or pilot-operated check valve to hold a load securely against air loss.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-20 Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-20 |
|---|---|
| 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 JSIJ63X350-20
| 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 JSIJ63X350-20 Is Used
Press Stroke Tuning
Fine-tune the extend end-position by up to 20 mm on-site to accommodate different material thicknesses in a light-duty assembly press without changing the actuator.
Divertor Gate Adjustment
Dial in the exact gate extension distance from 330 to 350 mm on a sorting line to handle varying package sizes on the fly.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-20 the Right Cylinder?
The -20 mm adjustable window is ideal for sharing a single spare across multiple stroke variants or fine-tuning a machine setup without swapping the cylinder. JSIJ mounting options include FA, LB, TC, TCM1, and TCM2. Because the 350 mm stroke is relatively long, always support the piston rod against side-load bending and use external guides to prevent premature wear.
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 JSIJ63X350-20 FAQ
The theoretical maximum force is 318 kgf at 1.0 MPa. It features a 20 mm piston rod, a G3/8 port, an M18x1.5 rod-end thread, and 29 mm adjustable air cushions at both ends.
The nominal 350 mm stroke is the maximum extend length. The external stop screw lets you shorten the extend stroke on-site by up to 20 mm, yielding a usable extend range of 330 to 350 mm. The retract end remains fixed. This mechanism only sets the end position and does not lock the load.
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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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