Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X275-50
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X275-50 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 275mm 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
- Stroke275 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 JSIJ63X275-50
Its extruded hard-anodized aluminium barrel omits tie rods entirely, making the overall 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 provide 29 mm of end-deceleration.
The -50 code defines an external stop-screw window that lets you shorten the extend stroke on-site by up to 50 mm, giving a usable 225-275 mm range while keeping the retract end fixed. This allows fine end-position tuning without swapping the cylinder. Note that this plain SKU lacks a magnet and cannot take a CMSE/DMSE sensor.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X275-50 Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X275-50 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 275 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 JSIJ63X275-50
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 63 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×275 | 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 JSIJ63X275-50 Is Used
End-Position Tuning
Use the 50 mm extend-shortening window to dial in the exact 225-275 mm reach on a machining fixture without machining new spacers.
Transfer Diverter
Pushes packages at 1559 N with adjustable reach, letting operators alter the extend endpoint on-site as belt widths change.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X275-50 the Right Cylinder?
The 63 mm sits perfectly in the middle at 1559 N. The adjustable stroke is ideal when you need to share one spare across slight stroke variants or fine-tune the extend end position on-site. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2. Because this SKU lacks the -S magnet, you cannot fit position sensors; choose an -S variant for CMSE/DMSE switches. For this 275 mm stroke, always guide the load to prevent rod side-loading.
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 JSIJ63X275-50 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 max force is 318 kgf at 1.0 MPa. It uses a G3/8 port and features a 29 mm adjustable air cushion at each end.
The nominal 275 mm stroke is the maximum. The external adjuster lets you shorten the extend stroke on-site by up to 50 mm, yielding a usable 225-275 mm range. The retract end remains fixed. This stop only sets the end position; it does not lock the load, so use a pilot-operated check valve for holding.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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