Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X275-100
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X275-100 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 JSIJ63X275-100
The extruded hard-anodized aluminum body contains no external tie rods and sits noticeably shorter than a same-bore ISO 15552 unit, saving valuable machine space. Air connects via a G3/8 port.
The external stop screw lets you shorten the extend stroke by up to 100 mm, giving a usable range of 175 to 275 mm without changing the physical cylinder. The retract end remains fixed. This SKU has no magnet and cannot take a CMSE or DMSE sensor; add an -S variant for position detection. Note that the adjustable stop sets the end position only, so you still need an external rod lock or pilot-operated check valve to hold a load against gravity.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X275-100 Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X275-100 |
|---|---|
| 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 JSIJ63X275-100
| 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 JSIJ63X275-100 Is Used
Variable Stroke Clamping
Dial in the exact clamping depth on mixed-material fixtures by shortening the extend stroke up to 100 mm on the fly.
Adjustable Transfer Stop
Serve as a height-flexible end-stop on a conveyor line, tuning the 175 to 275 mm extend position to match changing package sizes.
Compact Press Operation
Provide 1559 N of pressing force in a tight JIS profile body, shortening the stroke to avoid bottoming out on delicate components.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X275-100 the Right Cylinder?
When sizing this unit, stepping down to the 50 mm bore drops the 0.5 MPa push force to 982 N, while moving up to the 80 mm bore raises it to 2513 N. The 100 mm adjustment window is ideal when you need to fine-tune end positions across multiple product variants or want a single shared spare for differing stroke lengths. You can mount it using the basic body, FA, LB, TC, TCM1, or TCM2 brackets. Because this is a non-magnet SKU, position sensing is not possible. For a 275 mm stroke, always guide the load to prevent rod side-loading 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 JSIJ63X275-100 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. It uses a G3/8 port and a 20 mm rod with an M18x1.5 thread.
The nominal stroke is 275 mm, which is the maximum extend length. The external adjuster lets you shorten the extend stroke on-site by up to 100 mm, yielding a usable extend range of 175 to 275 mm. The retract end is fixed, and the adjuster only sets the end position rather than locking the load.
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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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