Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X250-40S
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X250-40S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 250mm 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
- Stroke250 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 JSIJ63X250-40S
Its extruded hard-anodized aluminium barrel omits tie rods entirely, making the body shorter and more compact than a same-bore ISO 15552 unit. The integrated -S magnet allows CMSE/DMSE sensors to drop directly into the side grooves for precise position detection.
The external adjuster lets you shorten the extend stroke by up to 40 mm on-site, giving a usable range of 210 to 250 mm without swapping the cylinder. Air connects via a G3/8 port, and the adjustable cushions decelerate the load smoothly at both ends.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X250-40S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X250-40S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 250 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 JSIJ63X250-40S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 63 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×250 | 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 JSIJ63X250-40S Is Used
Sorter Diverter Tuning
Fine-tune the 40 mm extend window on-site to perfectly match package sizes on a sorting line without changing the cylinder.
Clamp Position Adjustment
Dial in the exact clamping reach on a machining fixture, compensating for part tolerances using the external stop screw.
Variable Stops
Use the 210 to 250 mm range to create adjustable physical stops for varying pallet heights in a compact JIS envelope.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X250-40S the Right Cylinder?
The 40 mm adjuster is ideal when you need to fine-tune the extend end position across multiple stations or share a single spare cylinder across slightly different stroke variants. You can mount it using FA, LB, TC, TCM1, or TCM2 brackets. Because the stroke is 250 mm, always guide the load to prevent side-loading the rod. The -S magnet supports reed or electronic switches, but remember a plain cylinder drifts on air loss; use an external rod lock or pilot-operated check valve for held loads.
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 JSIJ63X250-40S FAQ
This 63 mm bore cylinder pushes 1559 N and pulls 1402 N at 0.5 MPa, and pushes 2182 N while pulling 1962 N at 0.7 MPa. The theoretical maximum force is 318 kgf at 1.0 MPa. It uses a G3/8 port and features a 20 mm piston rod with an M18x1.5 thread.
The nominal 250 mm stroke is the maximum extend length. The external adjuster lets you shorten the extend stroke by up to 40 mm on-site, yielding a usable range of 210 to 250 mm. The retract end remains fixed, and the cushion only decelerates the load rather than holding it in place.
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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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