Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X50-40
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X50-40 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 50mm 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
- Stroke50 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 JSIJ40X50-40
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder features a hard-anodized aluminum barrel and is notably shorter than a same-bore ISO 15552 unit. The external adjuster allows you to shorten the extend stroke on-site by up to 40 mm, meaning the usable forward travel spans 10 to 50 mm while the retract end remains fixed. It handles a safe working load of about 377 N, which is roughly 32 kg lifted vertically with a 2:1 margin. Pneumatic connections use a G1/4 port, and the unit includes adjustable air cushions of 20.5 mm at each end.
Because this specific SKU lacks the -S suffix, it cannot accept a magnetic switch for position sensing. Furthermore, the adjustable stop screw sets the end position but does not function as a load lock; the cylinder will drift if air pressure is lost, so fit an external rod lock or pilot-operated check valve if you need to hold a load. The piston seal is NBR, the buffer gasket is TPU, and it operates between 0.15 and 1.0 MPa.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X50-40 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X50-40 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 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 JSIJ40X50-40
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×50 | 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 JSIJ40X50-40 Is Used
Short-Stroke Clamping
Dial in the exact clamping travel between 10 and 50 mm on-site to accommodate varying part thicknesses without re-mounting the actuator.
Compact Ejector
Fit a space-constrained mold ejector where the JIS profile body saves critical machine length compared to a standard ISO 15552 cylinder.
Transfer Stopper
Adjust the stopper pin extension distance precisely to the product height, ensuring delicate items are halted without crushing damage.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X50-40 the Right Cylinder?
When sizing this actuator, the 32 mm bore offers a lighter 402 N push at 0.5 MPa, while the 63 mm bore jumps to 1559 N if your application demands more power. The JSIJ series supports Basic, FA, LB, TC, TCM1, and TCM2 mounting options to fit your framework. The 40 mm adjustable window is particularly useful for sharing a single spare cylinder across multiple stroke variants or fine-tuning the end position on-site without swapping the whole unit. Remember that this no-magnet version cannot host CMSE or DMSE sensors, so order the -S variant if you require position feedback. For any stroke length at or above 300 mm, always guide the load to prevent excessive side-loading on the rod.
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 JSIJ40X50-40 FAQ
At 0.5 MPa it provides 628 N of push and 528 N of pull force. At 0.7 MPa the push is 879 N and the pull is 739 N. The theoretical maximum force is 128 kgf at 1.0 MPa. The air port size is G1/4, the rod is 16 mm with an M14x1.5 thread, and it features 20.5 mm adjustable air cushions at both ends.
The nominal stroke is 50 mm, which is the maximum extend travel. The -40 code means an external stop screw lets you shorten the extend stroke on-site by up to 40 mm, giving a usable forward range of 10 to 50 mm. The retract end is fixed, and this stop mechanism only sets the end position rather than holding the load on air loss.
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