Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X25-30S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X25-30S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 25mm 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
- Stroke25 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 JSIJ40X25-30S
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder is built for tight spaces where end-position flexibility matters. The hard-anodized aluminum barrel makes it shorter and more compact than a same-bore ISO 15552 unit. It handles a safe working load of about 377 N, which means you can lift roughly 32 kg vertically with a 2:1 safety margin.
The external stop screw lets you shorten the extend stroke on-site by up to 30 mm, giving a usable extend range of 0-25 mm without swapping the cylinder. Because this is an -S SKU, a built-in piston magnet works seamlessly with CMSE/DMSE sensors in the side grooves. The unit features a G1/4 port, a 16 mm rod, and adjustable air cushions at both ends to decelerate the payload smoothly.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X25-30S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X25-30S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 25 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 JSIJ40X25-30S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×25 | 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 JSIJ40X25-30S Is Used
Pick-and-Place Forming
Fine-tune the extend stop on-site to 10 mm for pressing small contacts without crushing the component.
Variable-Length Diverting
Adjust the extend position dynamically as the external screw lets you shorten the stroke to clear varying package sizes.
Compact Shelf Pushing
Fit into tight 40 mm JIS envelope spaces to push light goods between rollers, tuning the end point exactly to the lane.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X25-30S the Right Cylinder?
When sizing this 40 mm bore, the adjacent 32 mm bore offers 402 N of push at 0.5 MPa for lighter duties, while stepping up to the 50 mm bore yields 982 N for heavier cycles. The -30 mm adjustable window is ideal for machines that require precise end-position tuning on-site or when consolidating spare parts across multiple stroke variants. You can mount it via FA, LB, TC, TCM1, or TCM2 brackets. The included -S magnet supports CMSE/DMSE switches for position confirmation. Even at this short 25 mm stroke, ensure adequate guiding to prevent side-loading damage.
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 JSIJ40X25-30S 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. This 40 mm bore cylinder uses a G1/4 air port.
The nominal 25 mm stroke is the maximum extend length. The external adjuster screw lets you shorten the extend stroke on-site by up to 30 mm, yielding a usable range of 0-25 mm. The retract end remains fixed. This mechanism sets the end position and does not lock the load.
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1-Year Warranty
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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Most inquiries answered within 7-8 hours.
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