Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X350-75
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X350-75 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 JSIJ40X350-75
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder is built for tasks needing exact end-position tuning. Its external adjuster lets you shorten the extend stroke on site by up to 75 mm, yielding a usable range of 275 to 350 mm while the retract end stays fixed. The hard-anodized aluminum barrel keeps the overall body shorter than a same-bore ISO 15552 unit. It handles a safe working load of about 377 N, which translates to lifting roughly 32 kg vertically with a 2:1 margin. Air connects via a G1/4 port.
Because this specific SKU lacks the -S magnet option, it cannot accept CMSE or DMSE sensors for position detection. The 20.5 mm adjustable air cushions at both ends absorb kinetic energy near the stroke limits but do not function as a load lock. If your application requires holding a load on air loss, you must fit an external rod lock or a pilot-operated check valve.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X350-75 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X350-75 |
|---|---|
| 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 JSIJ40X350-75
| 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 JSIJ40X350-75 Is Used
Variable Push Depth Pressing
Set precise contact depths for pressing small bearings or pins, adjusting the extend stroke from 275 to 350 mm on the fly to accommodate different material thicknesses without swapping cylinders.
Adjustable Transfer Stops
Act as a height-flexible stop gate on a conveyor line, using the 75 mm shortening window to tune the stopping position for various product sizes while fitting into tight JIS profile machinery envelopes.
Multi-Position Sorting Diverters
Drive a sorting diverter arm that requires on-site reach adjustment, allowing operators to fine-tune the extend endpoint to route packages of varying dimensions accurately.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X350-75 the Right Cylinder?
When sizing this actuator, consider the 50 mm bore if you need more thrust, as it raises the 0.5 MPa push force to 982 N. Conversely, dropping to a 32 mm bore reduces the push force to 402 N for lighter duties. The -75 mm adjuster is highly useful when you want a single spare cylinder that can cover multiple stroke variants simply by turning the external stop screw. You can mount it using FA, LB, TC, TCM1, or TCM2 brackets. Since the 350 mm stroke is relatively long, always use external guides to prevent rod bending and manage side loads. To add position sensing, you must select the -S variant, as this plain version cannot host a magnetic switch.
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 JSIJ40X350-75 FAQ
This 40 mm bore cylinder uses a G1/4 port and a 16 mm rod. It generates 628 N push and 528 N pull at 0.5 MPa, 879 N push and 739 N pull at 0.7 MPa, and a theoretical maximum of 128 kgf at 1.0 MPa.
The nominal 350 mm extend stroke is the maximum. The external stop screw lets you shorten the extend stroke on site by up to 75 mm, providing a usable extend range of 275 to 350 mm. The retract end remains fixed, and this mechanism only sets the end position, acting as a stop rather than a load lock.
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