Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X450-20S
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X450-20S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 450mm stroke, G1/2 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.
- BoreØ100 mm
- Stroke450 mm
- Port sizeG1/2
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM26×1.5
- CushionAdjustable, 33 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 JSIJ100~125 Adjustable Cylinder JSIJ100X450-20S
The hard-anodized aluminium extruded barrel keeps the assembly light without exposed tie rods. A G1/2 port handles the air flow for the 32 mm piston rod.
The JSIJ100X450-20S uses an external stop screw to shorten the extend stroke on site by up to 20 mm, giving a usable range of 430-450 mm while the retract end stays fixed. This lets you fine-tune the end position without physically swapping the cylinder. An integrated piston magnet (-S) allows CMSE or DMSE sensors to drop directly into the side barrel grooves for position detection. Note that a plain pneumatic cylinder drifts on air loss, as the adjustable air cushion only decelerates near the stroke end; use an external rod lock or pilot-operated check valve if you must hold a suspended load.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X450-20S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X450-20S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 450 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | G1/2 |
| Rod thread | M26×1.5 |
| 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, 33 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3525 N | 3525 N |
| 0.7 MPa | 4935 N | 4935 N |
| Max (@1.0 MPa) | 719 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 JSIJ100~125 Adjustable Cylinder JSIJ100X450-20S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×450 | 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 JSIJ100~125 Adjustable Cylinder JSIJ100X450-20S Is Used
Press Tool Positioning
Dial in the exact 430-450 mm extend reach on a heavy stamping press using the external adjuster, ensuring the tooling meets the workpiece without remounting the entire actuator.
Vertical Lift Station
Lift loads up to 200 kg in a compact assembly area where the shorter JIS profile saves valuable floor space compared to standard ISO 15552 cylinders.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X450-20S the Right Cylinder?
When sizing this 100 mm bore actuator, compare it against the neighbouring 80 mm and 125 mm options. The 20 mm adjustable window is extremely useful when you need to share one spare cylinder across several stroke variants or dial in a final end position on the factory floor. Mounting choices include Basic, FA, LB, TC, TCM1, and TCM2 brackets. Because the 450 mm stroke creates a long lever arm, always support the load with external guides to prevent rod bending and side-load damage. The built-in magnet supports CMSE/DMSE switches for precise end-of-stroke feedback.
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 JSIJ100~125 Adjustable Cylinder JSIJ100X450-20S FAQ
At 0.7 MPa the push is 5497 N and pull is 5003 N. The theoretical maximum force is 801 kgf at 1.0 MPa. This 100 mm bore cylinder uses a G1/2 air port and features a 32 mm piston rod with an M26x1.5 rod-end thread.
The -20 code means an external stop screw can shorten the extend stroke by up to 20 mm on site. The usable extend range is 430-450 mm, with the 450 mm nominal stroke being the maximum. The retract end remains fixed. This mechanism sets the end position but does not lock the load, as the air cushion only decelerates the piston near the end of travel.
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Standard models are processed and dispatched in 3-5 business days.
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