Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-40S
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X50-40S 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 JSIJ63X50-40S
The extruded hard-anodized aluminium barrel leaves no external tie rods, making the body notably shorter and more space-efficient than a same-bore ISO 15552 unit. A G3/8 port feeds the double-acting double-rod piston, while adjustable air cushions of 29 mm absorb impact at both ends.
The -40 code means an external stop screw lets you trim the extend stroke by up to 40 mm on-site, giving a usable forward travel of 10 to 50 mm without swapping the cylinder. The built-in magnet (-S) supports CMSE/DMSE sensors in the side grooves for precise end-position feedback. Note that the stop screw sets the end position; it is not a load lock, so add an external rod lock or pilot-operated check valve if you need to hold a suspended load on air loss.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-40S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-40S |
|---|---|
| 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 JSIJ63X50-40S
| 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 JSIJ63X50-40S Is Used
Short-Stroke Clamping
Ideal for holding parts during machining, where the 40 mm adjustment window lets operators dial in the exact 10 to 50 mm clamp position without changing the cylinder.
Transfer Diverter
Sorts packages on a line by extending a diverter arm; the compact JIS profile saves space while the CMSE/DMSE sensors confirm the divert stroke.
Press Fit Positioning
Pushes lightweight bearings or pins into housings, using the adjustable stop screw to set precise bottoming depth and avoid over-travel.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-40S the Right Cylinder?
The on-site adjustability shines when you need to fine-tune a 10 to 50 mm end position after installation, or when you want one shared spare across multiple stroke variants. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2 brackets. The -S magnet allows direct CMSE/DMSE switches for position confirmation. Because the nominal stroke is 50 mm, side-load guiding requirements are minimal, though any application over 300 mm total travel demands a proper external guide rail to protect the M18x1.5 rod thread and seals.
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 JSIJ63X50-40S FAQ
This 63 mm bore cylinder has a G3/8 air port. The theoretical maximum force is 318 kgf at 1.0 MPa.
The nominal stroke is 50 mm, which is the maximum extend travel. The external -40 stop screw lets you shorten that extend stroke on-site by up to 40 mm, yielding a usable range of 10 to 50 mm. The retract end remains fixed, and the screw only sets position rather than locking the load.
Authorized Export Seller
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.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC JSI Cylinders
Request a Quote for Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.