Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X225-50S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X225-50S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 225mm 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.
- BoreØ40 mm
- Stroke225 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM14×1.5
- 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 JSIJ40X225-50S
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder is built for compact installations where the extend end-position needs on-site tuning. The external adjuster lets you shorten the extend stroke by up to 50 mm, giving a usable range of 175-225 mm without changing the cylinder itself. The hard-anodized aluminum barrel makes it shorter and more compact than an ISO 15552 cylinder of the same bore. Because the -S suffix denotes a built-in piston magnet, the side grooves accept CMSE/DMSE reed or electronic sensors for precise position detection.
With a safe working load of about 377 N, it handles roughly 32 kg lifted vertically with a 2:1 safety margin. The G1/4 port and 16 mm rod keep the package neat, while the 20.5 mm adjustable air cushions at both ends decelerate the load smoothly. Remember that the cushion only slows the piston near the end of travel; a plain cylinder drifts on air loss, so fit an external rod lock or pilot-operated check valve if you need to hold a load.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X225-50S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X225-50S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 225 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 JSIJ40X225-50S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×225 | 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 JSIJ40X225-50S Is Used
Adjustable Clamping Stop
Sets a precise 175-225 mm extend position for clamping parts of varying widths, using the external adjuster to fine-tune the contact point without swapping cylinders.
Transfer Line Diverter
Pushes cartons off a belt at a tuned distance, relying on the 628 N push force and the 50 mm stroke window to adjust the push depth on site.
Sensor-Verified Ejector
Uses the built-in magnet with CMSE/DMSE switches to confirm ejection of a 32 kg vertical load, while the 20.5 mm cushions absorb the end-of-stroke impact.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X225-50S the Right Cylinder?
When sizing this 40 mm bore, step down to a 32 mm bore if your load is light (saving space and air) or step up to a 50 mm bore for 982 N of push at 0.5 MPa. The 50 mm adjustable window is ideal when you need to fine-tune the extend end position on the machine or share a single spare cylinder across several stroke variants. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2 brackets. The integrated magnet supports CMSE/DMSE switches. For any stroke at or over 300 mm, always use a guide rail to prevent side-load damage to the rod seals.
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 JSIJ40X225-50S FAQ
At 0.5 MPa it provides 628 N push and 528 N pull. At 0.7 MPa it provides 879 N push and 739 N pull. The theoretical maximum force is 128 kgf at 1.0 MPa. The air port is G1/4.
The nominal 225 mm stroke is the maximum. An external stop screw lets you shorten the extend stroke by up to 50 mm on site, giving a usable extend range of 175-225 mm. The retract end is fixed, and the stop sets position rather than locking the load.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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