Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X75-50
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X75-50 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 75mm 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
- Stroke75 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 JSIJ40X75-50
Generating 628 N of push force at 0.5 MPa, this compact 40 mm bore actuator brings on-site flexibility to tight machinery. The hard-anodized aluminum profile barrel keeps the overall body shorter than a same-bore ISO 15552 unit, saving valuable space. It handles about 377 N of real work safely, which means you can lift roughly 32 kg vertically with a 2:1 margin.
The -50 code defines an external stop screw window that shortens the extend stroke by up to 50 mm on-site. You can fine-tune the end position anywhere from 25 to 75 mm without swapping the cylinder, while the retract end stays fixed. Air connects via a G1/4 port, and the adjustable air cushions provide 20.5 mm of deceleration at each end. Note that this plain SKU lacks a magnet and cannot take a CMSE or DMSE sensor.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X75-50 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X75-50 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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 JSIJ40X75-50
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×75 | 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 JSIJ40X75-50 Is Used
Adjustable Stop Clamping
Dial in the exact 25 to 75 mm clamping reach on-site to accommodate different material thicknesses without changing out the entire actuator.
Variable Length Sorting
Fine-tune the pusher extension to deflect varying package sizes on a line, using the external adjuster to prevent over-travel damage.
Compact Part Ejection
Fit a short-stroke ejection mechanism into a tight machine footprint, benefiting from the JIS profile that is shorter than a standard ISO 15552 cylinder.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X75-50 the Right Cylinder?
When sizing, the 32 mm bore offers 402 N push at 0.5 MPa, while the 50 mm bore jumps to 982 N if you need more force. The 40 mm bore hits a sweet spot with 628 N push and 528 N pull at 0.5 MPa, peaking at 128 kgf at 1.0 MPa. The adjustable stroke is ideal for sharing a single spare across multiple stroke variants or dialing in end positions during commissioning. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. Because the stroke is 75 mm, side loads are minimal, but any application over 300 mm requires a dedicated guide to prevent rod binding. For sensing, you must select the -S variant, as this base model cannot accept a 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 JSIJ40X75-50 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. It uses a G1/4 air port, a 16 mm rod, an M14x1.5 rod thread, and 20.5 mm adjustable cushions at both ends.
The -50 code means an external stop screw can shorten the extend stroke by up to 50 mm on-site, giving a usable extend range of 25 to 75 mm. The nominal 75 mm stroke is the maximum. The retract end is fixed. This mechanism only sets the end position; it does not lock the load. If air is lost, the piston drifts, so you need an external rod lock or pilot-operated check valve to hold a load.
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