Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-75
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X125-75 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 125mm 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
- Stroke125 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 JSIJ100X125-75
Its extruded hard-anodized aluminum profile barrel keeps the overall length shorter than a same-bore ISO 15552 cylinder, saving valuable machine space without sacrificing power. The G1/2 port feeds the chamber efficiently, while adjustable air cushions of 33 mm at each end absorb impact energy smoothly.
An external stop screw lets you shorten the extend stroke on-site by up to 75 mm, meaning the usable forward travel spans 50 to 125 mm with the nominal 125 mm acting as the maximum. This on-site tuning is perfect for dialing in exact end positions without swapping the whole cylinder. Note that this specific SKU lacks a magnet and cannot accept CMSE or DMSE sensors.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-75 Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-75 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 125 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 JSIJ100X125-75
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×125 | 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 JSIJ100X125-75 Is Used
Press Fit Tuning
Dial in the exact insertion depth of a heavy bearing press. The 75 mm adjuster window lets operators fine-tune the extend end position on the floor without machining new spacers.
Variable Length Diverter
Act as a heavy routing gate on a packaging line. If product dimensions change, shorten the 125 mm extend stroke by up to 75 mm to reposition the stop block precisely where needed.
Pallet Stop Adjustment
Halt heavy pallets at a wrapping station. The external adjuster allows quick changes to the stopping distance to accommodate different pallet widths while delivering 3927 N of stopping force.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-75 the Right Cylinder?
The -75 mm adjustable window is highly useful when you need to share a spare cylinder across slightly different stroke variants or fine-tune the end position during commissioning. You can mount it using Basic, FA, LB, TC, TCM1, or TCM2 brackets. Because this is a non-magnet version, position sensing is not possible. For any application with a stroke of 300 mm or more, always use an external 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 JSIJ100X125-75 FAQ
This 100 mm bore cylinder uses a G1/2 air port and a 32 mm piston rod. The theoretical maximum force is 801 kgf at 1.0 MPa.
The nominal 125 mm stroke is the maximum forward travel. An external stop screw lets you shorten the extend stroke on-site by up to 75 mm, giving a usable range of 50 to 125 mm. The retract end remains fixed. This mechanism only sets the end position; it does not lock the load, so you need an external rod lock or pilot-operated check valve to hold a load on air loss.
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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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