Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X350-50S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X350-50S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 350mm 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
- Stroke350 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 JSIJ40X350-50S
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore model brings on-site flexibility to demanding tasks. The hard-anodized aluminum profile barrel keeps the body shorter and more compact than a same-bore ISO 15552 cylinder. A built-in magnet (-S) allows CMSE or DMSE sensors to drop directly into the side grooves for precise position detection.
The external adjuster lets you shorten the extend stroke by up to 50 mm on site, dropping the usable extension from the 350 mm maximum down to 300 mm without swapping the unit. It handles a safe working load of about 377 N, which translates to lifting roughly 32 kg vertically with a 2:1 safety margin. Pneumatic connections use a G1/4 port, and the retract end remains fixed.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X350-50S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X350-50S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 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 JSIJ40X350-50S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×350 | 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 JSIJ40X350-50S Is Used
Sorter Diverter Tuning
Dial in the exact 300 to 350 mm push distance to deflect packages of varying sizes on a sorting line without changing the cylinder.
Clamp Position Adjustment
Fine-tune the extend stop on a machining fixture to accommodate different part widths while maintaining a firm 879 N clamp at 0.7 MPa.
Vertical Lift Stop
Safely lift 32 kg loads vertically, using the external adjuster to set a precise upper travel limit before triggering the sensor.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X350-50S the Right Cylinder?
When sizing this actuator, the 32 mm bore offers a lighter 402 N push at 0.5 MPa, while the 50 mm bore jumps to 982 N if your application needs more authority. The 50 mm adjustable window is ideal for fine-tuning end positions across shared spare cylinders or dialing in a precise 300 mm extension. JSIJ mounting options include FA, LB, TC, TCM1, and TCM2. Because the stroke is 350 mm, always support the load with an external guide to prevent rod bending and excessive side loading.
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 JSIJ40X350-50S FAQ
At 0.5 MPa it provides 628 N push and 528 N pull. At 0.7 MPa it delivers 879 N push and 739 N pull. The theoretical maximum force is 128 kgf at 1.0 MPa. The air port size is G1/4.
The nominal 350 mm stroke is the maximum length. The external adjuster lets you shorten the extend stroke by up to 50 mm on site, giving a usable extension range of 300 to 350 mm. The retract end is fixed, and this mechanism sets the end position rather than holding 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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Most inquiries answered within 7-8 hours.
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