Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-50S
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X350-50S 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 JSIJ63X350-50S
The nominal 350 mm travel remains the maximum, yielding a usable 300-350 mm range, while the retract end stays fixed.
Built with an extruded hard-anodized aluminium profile barrel, the unit is physically shorter and more compact than a same-bore ISO 15552 cylinder. A G3/8 port feeds the chambers, and the -S suffix denotes a built-in piston magnet for CMSE/DMSE switches that drop directly into the side grooves. The adjustable air cushion provides 29 mm of deceleration at each end, though a plain cylinder does not hold load on air loss, requiring an external rod lock or pilot-operated check valve for vertical holding.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-50S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-50S |
|---|---|
| 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 JSIJ63X350-50S
| 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 JSIJ63X350-50S Is Used
Conveyor Diverter Tuning
Fine-tune the 300-350 mm extend position on-site to perfectly align a diverter gate without changing the cylinder mounting.
Pressing Station Setup
Adjust the extend stroke window by up to 50 mm to set precise material contact depth on a 63 mm bore pressing unit.
Shared Spare Inventory
Keep one actuator as a universal spare for multiple 300-340 mm stroke machines by dialing the external stop screw as needed.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-50S the Right Cylinder?
The 50 mm adjuster window lets you fine-tune the extend end position across 300 to 350 mm without swapping cylinders, perfect for sharing a spare across stroke variants. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. Because the stroke is 350 mm, you must use external guides to prevent rod bending and side loads. The included magnet supports CMSE/DMSE sensors for position feedback.
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 JSIJ63X350-50S FAQ
The theoretical maximum force is 318 kgf at 1.0 MPa. It features a 63 mm bore, a 20 mm rod, a G3/8 port, an M18x1.5 rod thread, and 29 mm adjustable air cushions at both ends.
The -50 code means an external stop screw allows you to shorten the extend stroke by up to 50 mm on-site. The nominal 350 mm stroke is the maximum, giving a usable extend range of 300-350 mm. The retract end is fixed, and the stop screw only sets the end position; it does not lock the 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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