Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X400-100S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X400-100S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm bore and 400mm 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
- Stroke400 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM18×1.5
- CushionAdjustable, 20.5 mm
About the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X400-100S
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore AirTAC model shrinks the footprint compared to a same-size ISO 15552 unit. The extruded hard-anodized aluminium profile barrel keeps the assembly light while housing adjustable air cushions of 20.5 mm at each end. A G1/4 port supplies the double-acting single-rod piston, which travels at 30-800 mm/s.
The external stop screw lets you trim the extend stroke by up to 100 mm on-site, dropping the usable travel from the 400 mm maximum down to 300 mm without swapping the cylinder. Because the -S suffix fits a piston magnet, you can drop CMSE or DMSE reed and electronic switches straight into the side grooves. In practical terms it handles about 589 N of real work, which means lifting roughly 50 kg vertically with a 2:1 safety margin.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X400-100S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X400-100S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 400 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 JSIJ50X400-100S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×400 | 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 JSIJ50X400-100S Is Used
Sorter Diverter Tuning
Dial in the exact push distance on a package diverter by shortening the extend stroke up to 100 mm on-site to match varying box sizes.
Pallet Stop Adjustment
Use the external stop screw to set precise pallet halt positions on a conveyor line without physically remounting the actuator.
Clamp Positioning
Fine-tune the clamping reach on a machining fixture by trimming the extend travel from 400 mm down to 300 mm as tooling dimensions change.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X400-100S the Right Cylinder?
When sizing this unit, the 40 mm bore neighbour offers 628 N push at 0.5 MPa while the 63 mm option jumps to 1559 N, so the 50 mm bore sits squarely in the mid-range. The adjustable-stroke window shines when you need to fine-tune an end position on the machine or want a single spare part that covers several stroke variants. You can mount it via FA, LB, TC, TCM1, or TCM2 brackets. Because the 400 mm travel is fairly long, always use an external guide to prevent rod bending and side loads.
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 JSIJ50X400-100S 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 air port is G1/4, the rod is 20 mm with an M18x1.5 thread, and it has 20.5 mm adjustable cushions at both ends.
The nominal stroke is 400 mm, which is the maximum extend travel. The external adjuster lets you shorten the extend stroke on-site by up to 100 mm, giving a usable extend range of 300 to 400 mm. The retract end is fixed. This stop sets the end position but does not lock the load; for load holding on air loss you need an external rod lock or pilot-operated check valve.
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Standard models usually ship in 3-4 days.
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