Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-20
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-20 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm bore and 700mm 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
- Stroke700 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM18×1.5
- CushionAdjustable, 20.5 mm
About the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-20
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder is built for on-site stroke tuning. The external adjuster lets you shorten the extend stroke by up to 20 mm, giving a usable range of 680 to 700 mm without swapping the actuator. It yields a safe working load of about 589 N, which translates to lifting roughly 50 kg vertically with a 2:1 margin. The extruded hard-anodized aluminum barrel keeps the total envelope more compact than a same-bore ISO 15552 unit.
Air connects via a G1/4 port, driving the 30-800 mm/s speed range. Because this is a no-magnet SKU, it cannot accept CMSE or DMSE sensors; you would need the -S variant for position detection. Note that the adjustable stop sets the end position but does not lock the load. For holding a load on air loss, you must add an external rod lock or pilot-operated check valve. With a 700 mm stroke, external guides are recommended to prevent rod bending under side loads.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-20 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-20 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 700 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 JSIJ50X700-20
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×700 | 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 JSIJ50X700-20 Is Used
Conveyor Diverter Tuning
Fine-tune the 700 mm extend reach by up to 20 mm on-site to perfectly align a diverter arm with varying package widths without machining new mounts.
Vertical Lift Gate
Lifts a 50 kg gate using the 982 N push force at 0.5 MPa, while the compact JIS profile saves overhead clearance compared to standard ISO cylinders.
Long-Reach Push Station
Pushes parts across a wide belt with a safe working load of 589 N, relying on external linear guides to support the long 700 mm stroke.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-20 the Right Cylinder?
When sizing, the 63 mm bore steps up to 1559 N at 0.5 MPa, while the 40 mm bore drops to 628 N, making this 50 mm actuator a solid middle ground. The 20 mm extend-shortening window is highly useful for sharing a spare cylinder across slightly different stroke variants or fine-tuning the end position during machine commissioning. JSIJ mounting options include FA, LB, TC, TCM1, and TCM2. Because this specific SKU lacks the -S magnet, it cannot support position sensing. Given the 700 mm stroke, always use external guides to manage side loads and protect the piston rod from bending.
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 JSIJ50X700-20 FAQ
This 50 mm bore cylinder uses a G1/4 port and generates 982 N push / 825 N pull at 0.5 MPa, and 1374 N push / 1154 N pull at 0.7 MPa. The theoretical maximum force is 200 kgf at 1.0 MPa.
The external adjuster lets you shorten the extend stroke on-site by up to 20 mm from the 700 mm nominal maximum, yielding a usable range of 680 to 700 mm. The retract end remains fixed, and this mechanism sets the end position rather than locking the load.
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