Airtac JSI Series Standard Cylinder JSI125X10S
The AirTAC Airtac JSI Series Standard Cylinder JSI125X10S is a genuine double acting JIS-standard air cylinder with a Ø125mm bore and 10mm 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
- Stroke10 mm
- Port sizeG1/2
- Acting typeDouble acting
- 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 JSI Series Standard Cylinder JSI125X10S
Delivering massive thrust in a tight footprint, this double-acting JIS-standard profile cylinder pushes with 6136 N at 0.5 MPa. Its hard-anodized extruded aluminum barrel keeps the overall length shorter than an ISO 15552 unit of the same bore, saving valuable machine space.
Because the SKU includes the -S magnet, you can drop CMSE or DMSE sensors directly into the side grooves for position detection. The two-way NBR piston seal retains grease for low-friction life, and the G1/2 ports feed the 32 mm rod. Plan for roughly 3682 N of real work at 0.5 MPa, which lifts about 313 kg vertically with a 2:1 margin.
Airtac JSI Series Standard Cylinder JSI125X10S Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI125X10S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 10 mm |
| Acting type | Double acting |
| 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 JSI Series Standard Cylinder JSI125X10S
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 125 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×10 | 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 JSI Series Standard Cylinder JSI125X10S Is Used
Heavy Press Clamping
Holds thick steel plates in a stamping press, using the 6136 N push force to lock the workpiece before the ram descends.
Injection Mold Ejection
Provides a short 10 mm knockout stroke to free solidified plastic parts from the mold cavity without requiring a long stroke length.
Pallet Stopper Gate
Acts as a heavy-duty physical stop on a conveyor line, absorbing the impact of loaded pallets thanks to the robust 32 mm rod.
Is the Airtac JSI Series Standard Cylinder JSI125X10S the Right Cylinder?
As the largest bore in the JSI range, there is no larger standard size to step up to; if you need less force, the 100 mm bore provides 3927 N push at 0.5 MPa. This 10 mm stroke is ideal for short clamping motions. The end cushions only decelerate the piston near stroke end and do not function as a brake; if the machine loses air, the load will drift, so fit an external rod lock or pilot-operated check valve.
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 JSI Series Standard Cylinder JSI125X10S FAQ
At 0.5 MPa it pushes with 6136 N and pulls with 5734 N. At 0.7 MPa it pushes 8590 N and pulls 8028 N. The theoretical maximum is 1251 kgf at 1.0 MPa. It uses a G1/2 air port and a M27x2.0 rod thread.
Yes, the -S suffix indicates a built-in piston magnet, allowing CMSE or DMSE switches to be fitted into the side grooves. Dimensionally, this JIS-standard profile cylinder is shorter and more compact than an ISO 15552 cylinder of the same 125 mm bore.
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 JSI Series Standard Cylinder JSI125X10S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.