Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X275-30S
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X275-30S 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 JSIJ63X275-30S
The hard-anodized aluminum barrel leaves out external rods, making the body shorter and more compact than a same-bore ISO 15552 unit. A G3/8 port feeds the double-acting double-rod system, while adjustable air cushions of 29 mm decelerate the payload smoothly at each end.
The external stop screw lets you trim the extend stroke by up to 30 mm on-site, giving a usable range of 245 to 275 mm without swapping the cylinder. The -S suffix adds a piston magnet for CMSE/DMSE switches that drop into the side grooves for precise positioning.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X275-30S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X275-30S |
|---|---|
| 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 JSIJ63X275-30S
| 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 JSIJ63X275-30S Is Used
Clamp Stroke Tuning
Dial in the exact 245 to 275 mm extend reach on a machining fixture to accommodate different part heights without remounting the actuator.
Transfer Gate Adjustment
Fine-tune the diverting stroke on a packaging line to handle varying box widths, using the magnetic switches for precise end-position feedback.
Vertical Lift Stops
Set a precise lower stopping point for a material lift, relying on the external adjuster to shorten the extend stroke safely within the 79 kg vertical capacity.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X275-30S the Right Cylinder?
The adjustable window is ideal when you need to fine-tune an end position across multiple fixtures or keep one spare for various stroke lengths. You can mount it via FA, LB, TC, TCM1, or TCM2 brackets. For a 275 mm stroke, always guide the load to prevent side-loading the rod. Remember that the stop screw sets position only; use an external rod lock or pilot-operated check valve if you need to hold a load on air loss.
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 JSIJ63X275-30S 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 features a 20 mm rod with an M18x1.5 thread.
The nominal 275 mm stroke is the maximum length. The external adjuster lets you shorten the extend stroke by up to 30 mm on-site, giving a usable range of 245 to 275 mm. The retract end remains fixed, and this mechanism only sets the end position rather than locking the 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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