Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X800-50
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X800-50 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm bore and 800mm 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
- Stroke800 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM18×1.5
- CushionAdjustable, 20.5 mm
About the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X800-50
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder is built for applications needing exact end-position tuning on site. The external stop screw lets you shorten the extend stroke by up to 50 mm, giving a usable range of 750 to 800 mm while the retract end remains fixed. Because the nominal 800 mm stroke is the maximum, you can fine-tune the stopping point without physically swapping the actuator. The hard-anodized aluminum extruded barrel makes the body shorter and more compact than a same-bore ISO 15552 unit.
In practical terms, the bore handles a safe working load of about 589 N, which translates to lifting roughly 50 kg vertically with a 2:1 safety margin. It features a G1/4 port, an M18x1.5 rod thread, and 20.5 mm adjustable air cushions at both ends to decelerate the piston smoothly. Note that this specific SKU lacks a magnet, so it cannot accept CMSE or DMSE sensors without switching to the -S variant. Furthermore, the cushion only decelerates; a plain cylinder drifts on air loss, so add an external rod lock or pilot-operated check valve if you need to hold a suspended load.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X800-50 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X800-50 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 800 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 JSIJ50X800-50
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×800 | 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 JSIJ50X800-50 Is Used
Conveyor Diverter Tuning
Dial in the exact pusher extension by up to 50 mm on site to match varying package sizes without changing the cylinder.
Long-Reach Material Stop
Use the 800 mm extend to reach across a wide conveyor lane, fine-tuning the stop position to align with downstream processes.
Vertical Lowering Arrest
Lower loads over the long 800 mm stroke and rely on the 20.5 mm adjustable cushion to smoothly decelerate the descent.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X800-50 the Right Cylinder?
When sizing this actuator, compare it against neighbouring bores: a 40 mm bore gives 628 N of push at 0.5 MPa, while a 63 mm bore offers 1559 N. This 50 mm model strikes a middle ground with 982 N of push and 825 N of pull at 0.5 MPa. The adjustable stroke feature is highly useful when you want a shared spare across slightly different stroke variants or need to dial in an exact end position after installation. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2 brackets. Because this is an 800 mm stroke, you must support the load with external guides to prevent rod bending and excessive side loading. Remember that this non-S SKU cannot support position sensing.
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 JSIJ50X800-50 FAQ
This 50 mm bore cylinder provides 982 N push and 825 N pull at 0.5 MPa, and 1374 N push with 1154 N pull at 0.7 MPa. 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 with an M18x1.5 thread.
The external adjuster allows you to shorten the extend stroke by up to 50 mm on site. The nominal 800 mm stroke is the maximum, so the usable extend range is 750 to 800 mm. The retract end is fixed, and the adjuster sets the end position rather than acting as a load lock.
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