Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-40
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X125-40 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 JSIJ100X125-40
The G1/2 port feeds the chamber efficiently to keep speeds within the 30-800 mm/s range.
The external stop screw lets you trim the extend stroke by up to 40 mm on-site, giving a usable forward travel of 85-125 mm without swapping the cylinder. Because the retract end is fixed, only the forward position moves. Note that this plain SKU lacks a magnet and cannot take CMSE/DMSE sensors. The air cushions only decelerate the piston near the ends; they will not hold a load on air loss, so fit an external rod lock or pilot-operated check valve for vertical holding.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-40 Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-40 |
|---|---|
| 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 JSIJ100X125-40
| 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 JSIJ100X125-40 Is Used
Press Fit Tuning
Dial in the exact 85-125 mm extend position on-site to seat bearings without bottoming out the tooling.
Diverter Gate Adjustment
Shift the extend stop up to 40 mm to re-route different package sizes on a shared line without changing cylinders.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-40 the Right Cylinder?
If 3927 N at 0.5 MPa is too much, step down to the 80 mm bore which gives 2513 N; if you need more power, the 125 mm bore offers 6136 N. The -40 mm adjustable window is ideal for fine-tuning the extend endpoint on-site or sharing one spare across several stroke variants. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. For any stroke at or above 300 mm, always use a guide rail to prevent side-load damage. To add position sensing, you must select the -S magnet version for CMSE/DMSE switches.
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 JSIJ100X125-40 FAQ
At 0.5 MPa it pushes 3927 N and pulls 3574 N. At 0.7 MPa it pushes 5497 N and pulls 5003 N. The theoretical maximum force is 801 kgf at 1.0 MPa.
The nominal 125 mm extend stroke is the maximum. An external adjuster lets you shorten the forward stroke by up to 40 mm on-site, yielding a usable extend range of 85-125 mm. The retract end remains fixed.
Authorized Export Seller
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.
Related AirTAC JSI Cylinders
Request a Quote for Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-40
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.