Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X125-10S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X125-10S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm bore and 125mm stroke, G1/4 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.
- BoreØ50 mm
- Stroke125 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM18×1.5
- CushionAdjustable, 20.5 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 JSIJ32~50 Adjustable Cylinder JSIJ50X125-10S
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder saves machine space by being shorter than a same-bore ISO 15552 unit. The hard-anodized aluminum barrel keeps the assembly light while the G1/4 port feeds the double-acting single rod. A built-in magnet (-S) allows CMSE or DMSE switches to clip directly into the side grooves for position sensing.
The -10 code means an external adjuster can shorten the extend stroke by up to 10 mm on site, giving a usable 115-125 mm range while the retract end stays fixed. This lets you fine-tune the end position without swapping the cylinder. In practice it handles about 589 N of safe working load, which means lifting roughly 50 kg vertically with a 2:1 margin. Note that a plain cylinder drifts on air loss; use an external rod lock or pilot-operated check valve if the load must be held, as the cushion only decelerates.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X125-10S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X125-10S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 125 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/4 |
| Rod thread | M18×1.5 |
| 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, 20.5 mm |
| Max standard stroke | Up to 1200 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X125-10S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | 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 JSIJ32~50 Adjustable Cylinder JSIJ50X125-10S Is Used
Clamp Position Trimming
Dial in the exact 115-125 mm clamping reach on a machining fixture using the external stopper, avoiding cylinder removal for minor length changes.
Sorter Gate Adjustment
Fine-tune the diverter gate extension limit by 10 mm on-site to accommodate different package sizes without reprogramming the PLC.
Vertical Lift Stop
Lift approximately 50 kg vertically using the 0.5 MPa thrust, relying on the external adjuster to set the precise upper stop position.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X125-10S the Right Cylinder?
If 982 N push at 0.5 MPa is too light, step up to the 63 mm bore for 1559 N; if it is excessive, the 40 mm bore offers 628 N. The adjustable stroke is ideal for sharing one spare across slight stroke variants or dialing in a final end position on-site. Mounting options include FA, LB, TC, TCM1, and TCM2. The -S suffix confirms the magnet is present for sensors. For any stroke at or above 300 mm, always guide the load to prevent side-load damage to the front cover.
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 JSIJ32~50 Adjustable Cylinder JSIJ50X125-10S FAQ
At 0.5 MPa it provides 982 N push and 825 N pull. At 0.7 MPa it provides 1374 N push and 1154 N pull. The theoretical maximum force is 200 kgf at 1.0 MPa. The air port is G1/4.
The nominal 125 mm stroke is the maximum. The external adjuster lets you shorten the extend stroke by up to 10 mm on site, giving a usable range of 115-125 mm. The retract end is fixed. This mechanism sets the end position and does not lock the load.
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