Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X80-40
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X80-40 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 80mm 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
- Stroke80 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 JSIJ40X80-40
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore model shrinks the machine envelope while matching standard JIS output. The hard-anodized aluminium profile barrel leaves out external rods, making the body shorter and more compact than a same-bore ISO 15552 cylinder. It handles about 377 N of real work safely, which translates to lifting roughly 32 kg vertically with a 2:1 margin.
A G1/4 port feeds the double-acting single-rod piston, and an external adjuster lets you trim the extend stroke by up to 40 mm right at the machine. The nominal 80 mm travel remains the maximum, giving a usable 40-80 mm window for fine-tuning the end position without swapping the cylinder. Note that this plain SKU lacks a magnet, so it cannot take a CMSE or DMSE sensor.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X80-40 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X80-40 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 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 JSIJ40X80-40
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×80 | 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 JSIJ40X80-40 Is Used
Gauge Position Trimming
Dial in the exact extend contact point within the 40 mm window without machining a new stop, perfect for setting measuring heads.
Multi-Variant Spare
Keep one cylinder on the shelf and adjust the extend travel down from 80 mm to fit several sub-assemblies on the line.
Clamp Stroke Tuning
Shorten the extend stroke on-site to accommodate different part thicknesses in a compact machining cell.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X80-40 the Right Cylinder?
When sizing this unit against its neighbours, stepping down to a 32 mm bore drops the 0.5 MPa push force to 402 N, while stepping up to a 50 mm bore raises it to 982 N. The adjustable stroke shines when you need to synchronize end positions across multiple stations or keep one spare cylinder for several stroke variants. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. Because this is a non-magnet SKU, order the -S version if you require CMSE/DMSE position sensing. For any stroke reaching 300 mm or more, always guide the load to prevent side-load damage to 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 JSIJ40X80-40 FAQ
At 0.5 MPa it pushes 628 N and pulls 528 N. At 0.7 MPa it pushes 879 N and pulls 739 N. The theoretical maximum is 128 kgf at 1.0 MPa. The air port is G1/4.
The external adjuster lets you shorten the extend stroke by up to 40 mm on-site, yielding a usable extend range of 40-80 mm. The nominal 80 mm stroke is the maximum, and the retract end remains fixed. The adjuster sets the end position but does not lock the load.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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