Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X400-75
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X400-75 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 400mm 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
- Stroke400 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 JSIJ63X400-75
The external adjuster allows you to shorten the forward stroke by up to 75 mm, giving a usable extend range of 325-400 mm without swapping the actuator. Its extruded hard-anodized aluminium barrel omits tie rods entirely, making the body shorter and more compact than a same-bore ISO 15552 unit. The G3/8 port feeds a 30-800 mm/s speed range, while the adjustable air cushions absorb 29 mm of end-impact energy.
Because this specific SKU lacks the -S magnet option, it cannot accept CMSE or DMSE position sensors. Remember that the external stop screw sets the end position but does not function as a load lock; if air pressure drops, the piston will drift, so fit an external rod lock or pilot-operated check valve for suspended loads. With a 400 mm stroke, always use external guides to prevent rod bending under side loads.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X400-75 Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X400-75 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 400 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 JSIJ63X400-75
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 63 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×400 | 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 JSIJ63X400-75 Is Used
Press Stroke Tuning
Ideal for light stamping or pressing tasks where the exact 325-400 mm extend endpoint must be dialed in on the machine without disassembling the cylinder.
Variable Length Stops
Perfect for diverter gates on conveyors where the stop arm needs a 75 mm on-site adjustment window to accommodate different package sizes.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X400-75 the Right Cylinder?
The -75 mm adjustable window is especially useful when you need to fine-tune the extend end position on-site or want a single spare part that can cover various stroke lengths between 325 and 400 mm. You can mount it using the basic body, FA, LB, TC, TCM1, or TCM2 foot and bracket options. Because this plain version has no magnet, you cannot add CMSE/DMSE sensors; choose the -S variant if you need position detection. Finally, at 400 mm of stroke, always support the load with external guides to avoid rod bending and premature seal 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 JSIJ63X400-75 FAQ
It features a 20 mm rod, M18x1.5 rod thread, G3/8 air port, and 29 mm adjustable air cushions at both ends.
The nominal 400 mm stroke is the maximum travel, but an external stop screw lets you shorten the extend stroke by up to 75 mm on-site, yielding a usable range of 325-400 mm. The retract end remains fixed. This mechanism only sets the end position and does not lock the load; you need a pilot-operated check valve or external rod lock to hold a suspended 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.
Fast Reply
Most inquiries answered within 7-8 hours.
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