Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X75-20S
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X75-20S 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 JSIJ100X75-20S
The nominal 75 mm stroke serves as the maximum, yielding a usable extend range of 55 to 75 mm, while the retract end remains fixed. The extruded hard-anodized aluminium barrel omits tie rods entirely, making the body shorter and more compact than a same-bore ISO 15552 unit.
Equipped with a -S piston magnet, the unit accepts CMSE or DMSE reed and electronic switches that drop directly into the side grooves for precise position feedback. Air connections use a G1/2 port, and adjustable 33 mm cushions at both ends manage end-of-stroke deceleration. Note that a plain cylinder does not hold a load on air loss; the cushion only decelerates, so fit an external rod lock or pilot-operated check valve if you need true load holding.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X75-20S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X75-20S |
|---|---|
| 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 JSIJ100X75-20S
| 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 JSIJ100X75-20S Is Used
Press Fit Tuning
Allows operators to dial in the exact 55 to 75 mm extend position on a press fit station without changing the physical cylinder setup.
Variable Transfer Stops
Provides an adjustable physical stop for diverter gates on a conveyor, letting maintenance shorten the stroke by 20 mm to accommodate new package sizes.
Pallet Positioning
Handles heavy pallet lifting tasks where the 100 mm bore delivers enough force, and the external adjuster simplifies final alignment.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X75-20S the Right Cylinder?
When sizing this 100 mm bore actuator, look at the neighbouring bores to match your pressure requirements. Dropping to an 80 mm bore reduces the 0.5 MPa push force to 2513 N, while stepping up to 125 mm increases it to 6136 N. The 20 mm adjustable window is highly useful when you need to fine-tune an end position without physically swapping cylinders, or when consolidating spare parts across slightly different stroke variants. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. Because this SKU includes the -S magnet, it is fully ready for CMSE/DMSE sensors. For any stroke length of 300 mm or more, always use a guide rail to prevent excessive side loading on the piston rod.
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 JSIJ100X75-20S FAQ
At 0.7 MPa the push increases to 5497 N and the pull to 5003 N. The theoretical maximum force is 801 kgf at 1.0 MPa.
The -20 indicates a 20 mm external adjustment window on the extend stroke. The nominal 75 mm stroke is the maximum, but you can shorten the extend end position by up to 20 mm on site, giving a usable range of 55 to 75 mm. The retract end is fixed, and this mechanism only sets the end position rather than locking the load.
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1-Year Warranty
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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