Airtac JSIJ32~50 Adjustable Cylinder JSIJ32X125-30S
The AirTAC JSIJ32~50 Adjustable Cylinder JSIJ32X125-30S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø32mm bore and 125mm stroke, G1/8 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.
- BoreØ32 mm
- Stroke125 mm
- Port sizeG1/8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM10×1.25
- CushionAdjustable, 20 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 JSIJ32X125-30S
The hard-anodized aluminum barrel leaves out external rods, making the body noticeably shorter than an ISO 15552 cylinder of the same bore. A built-in magnet (-S) allows CMSE/DMSE sensors to drop directly into the side grooves for position detection.
The external stop screw provides a 30 mm on-site extend-shortening window, letting you set a usable forward stroke anywhere between 95 and 125 mm without swapping the cylinder. This on-site tuning is ideal for sharing a spare across stroke variants or fine-tuning an end position. The unit features a G1/8 port, an M10x1.25 rod thread, and 20 mm adjustable air cushions at both ends.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ32X125-30S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ32X125-30S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 125 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 mm |
| Max standard stroke | Up to 1000 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 346 N | 346 N |
| 0.7 MPa | 484 N | 484 N |
| Max (@1.0 MPa) | 70 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 JSIJ32~50 Adjustable Cylinder JSIJ32X125-30S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 32 | 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 JSIJ32X125-30S Is Used
Stopper Cylinder Tuning
Use the 30 mm extend adjuster to set the exact stopping height for varying workpiece sizes on a machining line without changing the fixture.
Compact Pressing
Fits into tight vertical pressing stations where the shorter JIS profile saves vertical space compared to standard ISO 15552 units.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ32X125-30S the Right Cylinder?
The 30 mm adjuster is a major selection advantage: it lets you dial in the exact extend end-position on the machine, absorbing mechanical tolerances without machining new parts. You can mount it using the basic body, FA, LB, TC, TCM1, or TCM2 brackets. The -S magnet supports CMSE/DMSE switches for end-of-stroke confirmation. Because the 125 mm stroke exceeds 300 mm? No, but as a general rule for any stroke over 300 mm, guide the load externally to prevent side-load wear on the 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 JSIJ32X125-30S FAQ
The theoretical maximum force is 82 kgf at 1.0 MPa. It uses a G1/8 air port and an M10x1.25 rod thread.
The nominal 125 mm stroke is the maximum. An external stop screw lets you shorten the extend stroke by up to 30 mm on-site, giving a usable range of 95 to 125 mm while the retract end stays fixed. This stop only sets the end position; it is not a load lock. The cylinder will drift on air loss, so use an external rod lock or pilot-operated check valve to hold a load.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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