Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-30S
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X50-30S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 50mm 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
- Stroke50 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 JSIJ63X50-30S
The extruded hard-anodized aluminium profile barrel keeps the overall body shorter and more compact than a same-bore ISO 15552 cylinder, saving valuable machine space. It uses a G3/8 port and an M18x1.5 rod thread.
The external adjuster lets you shorten the extend stroke on-site by up to 30 mm, meaning the usable extend range is 20-50 mm while the retract end remains fixed. You can fine-tune the end position without swapping the cylinder. The -S suffix means a built-in piston magnet is present, ready for CMSE/DMSE sensors in the side grooves. Note that the adjustable stop sets position only; on air loss the piston drifts, so fit an external rod lock or pilot-operated check valve to hold a suspended load.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-30S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-30S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 50 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 JSIJ63X50-30S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 63 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×50 | 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 JSIJ63X50-30S Is Used
Press Stroke Tuning
Dial in the exact 20 to 50 mm extend contact point on a light assembly press without machining new spacers.
Variable Diverter Gate
Adjust the pusher extension on-site to redirect different package sizes on a packaging line.
Shared Spare Cylinder
Keep one 63 mm bore unit in maintenance stock and shorten the extend stroke as needed to fit multiple machines.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-30S the Right Cylinder?
The JSIJ series mounting set includes Basic, FA, LB, TC, TCM1, and TCM2 options. The on-site adjuster is highly useful when you need to share one spare cylinder across several stroke variants or fine-tune a final end position. Because this unit includes the -S magnet, it accepts CMSE/DMSE reed or electronic switches directly. For any stroke length of 300 mm or more, always guide the load to prevent excessive side-load wear on the rod seal.
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 JSIJ63X50-30S FAQ
This 63 mm bore cylinder uses a G3/8 port. The piston rod is 20 mm with an M18x1.5 thread.
The nominal stroke is 50 mm, which is the maximum extend length. The external adjuster lets you shorten the extend stroke on-site by up to 30 mm, giving a usable extend range of 20 to 50 mm. The retract end is fixed, and this mechanism sets the end position rather than locking 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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