Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X75-50S
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X75-50S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 75mm 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
- Stroke75 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 JSIJ100X75-50S
The nominal 75 mm stroke remains the maximum travel, yielding a usable extend range of 25 to 75 mm, while the retract end stays fixed. Built with a hard-anodized aluminum barrel, the body is noticeably shorter and more compact than a same-bore ISO 15552 unit. The G1/2 port feeds the 32 mm piston rod, and the built-in -S magnet accepts CMSE/DMSE sensors in the side grooves for precise position detection.
Air cushions at both ends provide 33 mm of controlled deceleration, but remember this mechanism only slows the piston near stroke end. A plain cylinder does not hold a load on air loss or when the valve is centered. For vertical or suspended loads that must not drift, you need an external rod lock or a pilot-operated check valve. The adjustable stop screw sets your end position independently of the air system, giving you exact tuning without swapping the entire actuator.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X75-50S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X75-50S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 75 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 JSIJ100X75-50S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×75 | 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 JSIJ100X75-50S Is Used
Press Fit Tuning
Use the 50 mm extend window to dial in the exact bottoming position of a 200 kg press fit without changing mechanical hard stops.
Variable Transfer Stops
Adjust the extend stroke on-site to handle different package sizes on a heavy conveyor line, using the G1/2 port for rapid actuation.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X75-50S the Right Cylinder?
The 50 mm adjustable window is perfect when you need to fine-tune the extend end position on the machine or want a single spare part that covers several stroke variants. You can mount it using FA, LB, TC, TCM1, or TCM2 brackets. The -S magnet allows CMSE/DMSE switches to drop directly into the barrel grooves. For any stroke length at or above 300 mm, always use a guide rail to prevent side-load damage to the rod seals.
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 JSIJ100X75-50S FAQ
The theoretical maximum force is 801 kgf at 1.0 MPa. It features a 100 mm bore, a 32 mm rod, M26x1.5 rod thread, and a G1/2 air port.
The external adjuster lets you shorten the extend stroke by up to 50 mm on-site. With a nominal 75 mm maximum stroke, your usable extend range becomes 25 to 75 mm. The retract end is fixed, and the stop screw sets the end position but does not lock 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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