Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-50
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X50-50 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 JSIJ63X50-50
The hard-anodized aluminium barrel keeps the assembly light without external rods. A G3/8 port supplies air for 30-800 mm/s speeds.
The -50 code means an external adjuster can shorten the 50 mm extend stroke on site right down to zero, letting you fine-tune the end position without swapping the cylinder. The retract end remains fixed. This plain SKU lacks a magnet and cannot take a CMSE or DMSE sensor. Note that the adjustable air cushions only decelerate the piston near the ends; a plain cylinder drifts on air loss, so fit an external rod lock or pilot-operated check valve to hold a load.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-50 Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-50 |
|---|---|
| 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 JSIJ63X50-50
| 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 JSIJ63X50-50 Is Used
Short-Stroke Clamping
Dial in the exact clamping contact point on-site using the 50 mm adjuster window to compensate for material thickness variations.
Transfer Diverter
Fine-tune the diverter gate extension length precisely without removing the cylinder from the conveyor frame.
Package Stopper
Adjust the stopper pin height on the fly to handle different carton sizes passing down the packing line.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X50-50 the Right Cylinder?
Stepping down to a 50 mm bore drops the 0.5 MPa push force to 982 N, while moving up to an 80 mm bore raises it to 2513 N, so the 63 mm bore sits in a solid mid-range. The -50 mm adjustable window is perfect when you need to share one spare cylinder across several slightly different short-stroke variants or dial in a final end position on the machine. You can mount it via FA, LB, TC, TCM1, or TCM2 brackets. Because this is a non-magnet SKU, position sensing is unavailable unless you specify the -S version. For any stroke at or above 300 mm, always guide the load to prevent excessive side loading on the rod.
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 JSIJ63X50-50 FAQ
At 0.5 MPa it pushes 1559 N and pulls 1402 N. At 0.7 MPa it pushes 2182 N and pulls 1962 N. The theoretical maximum force is 318 kgf at 1.0 MPa. The air port is G3/8.
The nominal 50 mm extend stroke is the maximum. An external stop screw lets you shorten the extend stroke on-site by up to 50 mm, meaning the usable extend range is 0 to 50 mm. The retract end position is fixed.
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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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