Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X400-50
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X400-50 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 JSIJ63X400-50
It is a double-acting double-rod actuator with a 400 mm nominal stroke and a 50 mm external adjuster window, letting you fine-tune the end position down to 350 mm without swapping the unit. The extruded hard-anodized aluminium profile barrel contains no external tie rods, making the overall body shorter and more compact than a same-bore ISO 15552 cylinder. A G3/8 port feeds the chamber, while adjustable air cushions of 29 mm decelerate the piston at both ends.
This plain SKU lacks a magnet and cannot accept CMSE or DMSE sensors; order the -S variant if you need position detection. Because the 400 mm stroke creates leverage, use an external guide to prevent rod bending under side loads. The retract end remains fixed, and the adjuster only sets the extend stop—it is not a load lock, so add a pilot-operated check valve or external rod lock if you must hold a suspended load against air loss.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X400-50 Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X400-50 |
|---|---|
| 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 JSIJ63X400-50
| 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 JSIJ63X400-50 Is Used
Conveyor Diverter Tuning
Dial in the exact 350 to 400 mm extend reach to deflect varying package sizes on a sorting line without remounting the actuator.
Press Stroke Adjustment
Fine-tune the working end position on-site to accommodate different material thicknesses in a light-duty assembly press.
Vertical Lift Stops
Lift loads up to 79 kg and use the external adjuster to set precise upper travel limits for stacking or palletizing routines.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X400-50 the Right Cylinder?
The -50 mm adjustable window is ideal when you need to share one spare cylinder across several stroke variants or dial in a precise end position on the machine. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2 brackets. Since this is a non-magnet SKU, it cannot host reed or solid-state switches; select a -S model for CMSE/DMSE sensor integration. With a 400 mm stroke, always support the load with an external linear guide to absorb side loads and prevent rod bending.
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 JSIJ63X400-50 FAQ
The theoretical maximum force is 318 kgf at 1.0 MPa. The air port size is G3/8.
The nominal stroke is 400 mm, which is the maximum extend travel. The external adjuster lets you shorten the extend stroke on-site by up to 50 mm, giving a usable range of 350 to 400 mm. The retract end is fixed, and this stop only sets the end position—it does not lock the load.
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