Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X75-75
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X75-75 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 JSIJ40X75-75
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder is built for precise on-site end-position tuning. Its external adjuster allows you to shorten the extend stroke by up to 75 mm on site, meaning the nominal 75 mm stroke acts as your maximum travel while the retract end remains fixed. The hard-anodized aluminum barrel keeps the overall body more compact than an equivalent ISO 15552 unit, and the G1/4 port manages airflow efficiently.
This model handles a safe working load of about 377 N, which translates to lifting roughly 32 kg vertically with a 2:1 margin. Note that this specific SKU lacks a magnet, so it cannot accept CMSE or DMSE sensors without switching to the -S variant. Also, while the adjustable air cushions absorb end-of-stroke impacts, a plain cylinder will not hold a load on air loss—use an external rod lock or pilot-operated check valve for suspended loads.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X75-75 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X75-75 |
|---|---|
| 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 JSIJ40X75-75
| 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 JSIJ40X75-75 Is Used
Stroke Tuning for Clamping
Dial in the exact clamping contact point on varying part widths by backing out the external adjuster up to 75 mm without changing the fixture hardware.
Variable Length Sorting
Adjust the extend stroke on the fly to push different box sizes onto diverging conveyor lanes, ensuring positive contact without overtravel.
Compact Ejector Station
Fit a short-stroke ejection mechanism into a tight machine cell, benefiting from the JIS profile build that saves valuable axial space.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X75-75 the Right Cylinder?
When sizing this unit, compare it against neighbouring bores: a 32 mm bore yields 402 N of push at 0.5 MPa for tighter spaces, whereas a 50 mm bore provides 982 N if your application demands more power. The adjustable-stroke mechanism is ideal when you need to fine-tune the extend end position without physically swapping the cylinder, or when you want a single spare to cover multiple shorter stroke variants. You can mount it using FA, LB, TC, TCM1, or TCM2 brackets. Because this is a non-magnetized SKU, it cannot host position sensors. For any stroke length at or above 300 mm, always use a guide rail to prevent side-load damage to the piston 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 JSIJ40X75-75 FAQ
This 40 mm bore cylinder uses a G1/4 port and a 16 mm piston rod. It generates 628 N push and 528 N pull at 0.5 MPa, increasing to 879 N push and 739 N pull at 0.7 MPa. The theoretical maximum force is 128 kgf at 1.0 MPa.
The -75 code means the extend stroke can be shortened by up to 75 mm via an external stop screw. The nominal 75 mm stroke is the absolute maximum travel, allowing you to set the usable extend stroke anywhere down to 0 mm on site, while the retract end remains fixed.
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