Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-40S
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X350-40S 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 JSIJ63X350-40S
The external adjuster lets you fine-tune the extend end position between 310 mm and 350 mm without swapping the actuator. The hard-anodized aluminium barrel omits tie rods entirely, making the body shorter and more compact than a same-bore ISO 15552 cylinder.
This -S variant includes a built-in piston magnet for CMSE/DMSE switches that drop directly into the side grooves. Air flows through a G3/8 port, driving the 20 mm rod at 30-800 mm/s with 29 mm adjustable cushions at both ends. The retract end is fixed, and the stop screw sets end position only. A plain cylinder drifts on air loss because the cushion solely decelerates, so fit an external rod lock or pilot-operated check valve to hold a load.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-40S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-40S |
|---|---|
| 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 JSIJ63X350-40S
| 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 JSIJ63X350-40S Is Used
Diverter Gate Tuning
Dial in the exact extend reach from 310 to 350 mm on-site to hit a moving carton stream without remounting the actuator.
Variable Stops Pusher
Shorten the extend stroke by up to 40 mm to create multiple physical push-off distances from a single cylinder.
Press Head Positioning
Fine-tune the 1559 N extend end point to accommodate different material thicknesses while keeping the retract fixed.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-40S the Right Cylinder?
Size this 63 mm bore against the 50 mm and 80 mm options. The 40 mm adjust window is ideal when you need to share one spare across several stroke variants or dial in a precise end position on the machine. Mounting options include FA, LB, TC, TCM1, and TCM2. The -S magnet supports CMSE/DMSE sensors. Because the 350 mm stroke is fairly long, always use an external guide to prevent rod bending and side loads.
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 JSIJ63X350-40S FAQ
This 63 mm bore cylinder pushes 1559 N and pulls 1402 N at 0.5 MPa. At 0.7 MPa it pushes 2182 N and pulls 1962 N. The theoretical max force is 318 kgf at 1.0 MPa. It uses a G3/8 port, a 20 mm rod, and 29 mm adjustable cushions.
The nominal 350 mm stroke is the maximum. An external stop screw lets you shorten the extend stroke by up to 40 mm on-site, giving a usable extend range of 310 to 350 mm. The retract end is fixed, and this stop sets position only, not a load lock.
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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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Most inquiries answered within 7-8 hours.
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