Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X100-10
The AirTAC Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X100-10 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø125mm bore and 100mm 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.
- BoreØ125 mm
- Stroke100 mm
- Port sizeG1/2
- Acting typeDouble acting, adjustable stroke
- Rod threadM27×2.0
- 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 JSIJ125X100-10
Delivering 6136 N of push force at 0.5 MPa, this 125 mm bore JIS profile cylinder is built for heavy-duty tasks. The hard-anodized aluminium barrel keeps the total length shorter than a same-bore ISO 15552 unit. It handles a safe working load of about 3682 N, which translates to lifting roughly 313 kg vertically with a 2:1 margin.
An external stop screw lets you trim the extend stroke by up to 10 mm on site, giving a usable range of 90-100 mm without swapping the cylinder. The retract end stays fixed. This SKU has no magnet and cannot take a CMSE or DMSE sensor. Air connects via a G1/2 port, and the adjustable cushion decelerates the load but does not hold it on air loss.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X100-10 Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X100-10 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 100 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| 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 – 500 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X100-10
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×100 | 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 JSIJ125X100-10 Is Used
Press Fit Tuning
Trim the 10 mm extend window to dial in the exact seating depth of a bearing without remounting the actuator.
Heavy Stamping Stop
Leverage the 6136 N push force to form metal, using the external adjuster to set a precise bottoming height.
Shared Spare Stock
Keep one cylinder as a plant spare, shortening the extend stroke on site to suit various 90 to 100 mm machine setups.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X100-10 the Right Cylinder?
Size this 125 mm bore against the 100 mm option, which gives 3927 N push at 0.5 MPa, or step up if you exceed the 1251 kgf maximum. The 10 mm extend window is useful when you need to fine-tune a pressing end position across multiple fixtures. Mounting choices include FA, LB, TC, TCM1, and TCM2. Because this SKU lacks the -S magnet, position sensing is impossible here. For any stroke over 300 mm, always use a guide rail to prevent side-load wear on the 32 mm 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 JSIJ125X100-10 FAQ
At 0.5 MPa it pushes 6136 N and pulls 5734 N. At 0.7 MPa it pushes 8590 N and pulls 8028 N. The theoretical maximum is 1251 kgf at 1.0 MPa. The air port is G1/2.
The external stop screw lets you shorten the extend stroke by up to 10 mm on site, giving a usable range of 90-100 mm. The nominal 100 mm stroke is the maximum. The retract end is fixed, and the stop is not a load lock.
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Standard models are processed and dispatched in 3-5 business days.
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