Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X500-40
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X500-40 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm bore and 500mm 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.
- BoreØ50 mm
- Stroke500 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM18×1.5
- CushionAdjustable, 20.5 mm
About the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X500-40
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder is built for tasks that need precise end-position tuning on site. The extruded hard-anodized aluminium barrel omits tie rods entirely, making the body shorter and more compact than a same-bore ISO 15552 unit. It handles a safe working load of roughly 589 N, which translates to lifting about 50 kg vertically with a 2:1 margin. Air connects via a G1/4 port, and the rod-end thread is M18x1.5.
The -40 code means an external stop screw lets you shorten the extend stroke by up to 40 mm, giving a usable range of 460 to 500 mm while the retract end stays fixed. You can fine-tune the stop without changing the cylinder itself, which is ideal for sharing a spare across stroke variants. This plain SKU has no magnet and cannot take a CMSE or DMSE sensor. Note that the adjustable air cushions only decelerate the piston near the end of travel; they do not hold the load on air loss, so fit an external rod lock or pilot-operated check valve for vertical holding.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X500-40 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X500-40 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 500 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/4 |
| Rod thread | M18×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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 JSIJ50X500-40
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×500 | 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 JSIJ50X500-40 Is Used
Transfer Push-Off
Pushes parts off a belt at 460 to 500 mm, using the external adjuster to dial in the exact eject position without moving the cylinder mount.
Lowering Stop
Acts as a height stop for a lowering assembly, where the 40 mm window lets operators fine-tune the resting position for different product sizes.
Pallet Standoff
Extends to create a fixed standoff for pallet loading, adjusted on-site to accommodate varying pallet depths while keeping the retract position fixed.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X500-40 the Right Cylinder?
Size this 50 mm bore against its neighbours: a 40 mm gives 628 N push at 0.5 MPa, while a 63 mm yields 1559 N, so choose the 50 mm for loads around 589 N. The 40 mm on-site adjuster is perfect when you need to tune the extend end-position without swapping cylinders, letting one spare cover several stroke variants. Mounting options include FA, LB, TC, TCM1, and TCM2. Because this is a non-magnetised SKU, it cannot host a CMSE or DMSE sensor; add the -S variant if you need position detection. With a 500 mm stroke, you must 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 JSIJ50X500-40 FAQ
At 0.5 MPa it pushes 982 N and pulls 825 N. At 0.7 MPa it pushes 1374 N and pulls 1154 N. The theoretical maximum force is 200 kgf at 1.0 MPa. The bore uses a G1/4 port and a 20.5 mm adjustable air cushion at each end.
The -40 means an external stop screw lets you shorten the extend stroke by up to 40 mm on site. The usable extend range is 460 to 500 mm, with 500 mm being the maximum. The retract end is fixed. This stop sets the end position and is not a load lock.
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