Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-40
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-40 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 JSIJ50X700-40
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder is built for tasks that need exact endpoint tuning. The external stop screw provides a 40 mm window to shorten the extend stroke on site, meaning you can fine-tune the 700 mm maximum travel down to 660 mm without swapping the actuator. Its hard-anodized aluminium barrel omits tie rods entirely, making the body noticeably shorter and more compact than a same-bore ISO 15552 unit.
This model handles a safe working load of about 589 N, which translates to lifting roughly 50 kg vertically with a 2:1 safety margin. Pneumatically, it runs on a G1/4 port, features an M18x1.5 rod thread, and uses 20.5 mm adjustable air cushions at both ends. Because this is a non-magnet SKU, it cannot accept CMSE or DMSE position sensors. Note that the air cushion only decelerates the piston near the end of travel; an external rod lock or pilot-operated check valve is required to hold a load securely against air loss.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-40 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-40 |
|---|---|
| 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 JSIJ50X700-40
| 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 JSIJ50X700-40 Is Used
Transfer Line Diverter
Fine-tune the pusher stroke by up to 40 mm on site to accommodate different pallet sizes without changing the cylinder mounting.
Vertical Lift Gate
Lifts a 50 kg gate using the 982 N push force at 0.5 MPa, with the adjustable stop ensuring precise closing height.
Carton Flap Folder
Uses the compact JIS profile to fit tight packaging machinery while providing a 700 mm reach to clear large boxes.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-40 the Right Cylinder?
When sizing this actuator, compare it against the neighbouring 40 mm bore (which yields 628 N push at 0.5 MPa) and the larger 63 mm bore (providing 1559 N push at 0.5 MPa) to ensure your force margin is correct. The 40 mm adjustable window is especially useful if you need to share one spare cylinder across several stroke variants or dial in a final end position on the machine. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. Because the 700 mm stroke creates a long lever arm, you must support the load with an external guide to prevent rod bending and excessive side loading. If you require position feedback, select the -S variant instead, as this base unit lacks a magnet.
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 JSIJ50X700-40 FAQ
At 0.5 MPa it provides 982 N push and 825 N pull. At 0.7 MPa it provides 1374 N push and 1154 N pull. The theoretical maximum force is 200 kgf at 1.0 MPa. This 50 mm bore model uses a G1/4 air port and an M18x1.5 piston rod thread.
The 700 mm nominal stroke is the maximum travel. The external adjuster lets you shorten the extend stroke by up to 40 mm on site, giving a usable extend range of 660 to 700 mm. The retract end is fixed, and the adjuster sets the end position but does not lock the load.
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