Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X400-100
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X400-100 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 JSIJ50X400-100
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder is built for applications that need exact end-position tuning on the floor. The hard-anodized aluminum barrel uses no external rods, making the overall body shorter and more compact than a same-bore ISO 15552 unit. It handles about 589 N of real work safely, which translates to lifting roughly 50 kg vertically with a 2:1 margin.
The -100 code means an external adjuster can shorten the extend stroke by up to 100 mm on-site, giving a usable range of 300-400 mm while the retract end stays fixed. Air connections use a G1/4 port, and adjustable cushions decelerate the piston at both ends. Note that this specific SKU lacks a magnet, so it cannot accept CMSE or DMSE sensors without switching to the -S variant.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X400-100 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X400-100 |
|---|---|
| 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 JSIJ50X400-100
| 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 JSIJ50X400-100 Is Used
Conveyor Diverter Tuning
Fine-tune the 300-400 mm extend reach on-site to perfectly deflect varying package sizes onto the correct sorting lane without remounting the actuator.
Press Stroke Calibration
Dial in the exact 50 kg vertical press depth using the external stop screw, ensuring delicate assembly work is not over-traveled.
Adjustable Stops
Set custom physical end-stops for pallet positioning, allowing 100 mm of flexibility to accommodate different pallet dimensions on the same line.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X400-100 the Right Cylinder?
When sizing, the 63 mm bore steps up to 1559 N push at 0.5 MPa, while the 40 mm bore drops to 628 N, placing this 50 mm unit right in the middle for medium-duty work. The 100 mm adjustable window is ideal when you want a single shared spare cylinder that can cover several slightly different extend lengths, or when final machine timing requires precise end-position tuning without swapping the whole actuator. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. Because the 400 mm stroke is long, always use an external guide rail to prevent rod bending and side-load damage. Remember this non-magnetic SKU cannot take a sensor.
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 JSIJ50X400-100 FAQ
This 50 mm bore cylinder pushes with 982 N and pulls with 825 N at 0.5 MPa. At 0.7 MPa it pushes 1374 N and pulls 1154 N. The theoretical maximum force is 200 kgf at 1.0 MPa. It uses a G1/4 air port and features a 20 mm piston rod.
The nominal 400 mm stroke is the maximum length. The external adjuster lets you shorten the extend stroke by up to 100 mm on-site, yielding a usable extend range of 300-400 mm. The retract end remains fixed. This mechanism only sets the end position; it does not lock the load, so you need an external rod lock or pilot-operated check valve to hold a load against air loss.
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