Airtac JSI Series Standard Cylinder JSI50X750S
The AirTAC Airtac JSI Series Standard Cylinder JSI50X750S is a genuine double acting JIS-standard air cylinder with a Ø50mm bore and 750mm 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
- Stroke750 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM18×1.5
- CushionAdjustable, 20.5 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac JSI Series Standard Cylinder JSI50X750S
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore double-acting actuator saves valuable machine space because its JIS profile body is shorter and more compact than an ISO 15552 cylinder of the same bore. The hard-anodized aluminum extrusion omits external rods to resist wear, while the two-way piston seal retains grease for a long, low-friction service life. Plan for roughly 589 N of actual work at 0.5 MPa, which means it lifts about 50 kg vertically with a 2:1 safety margin.
Because this SKU includes the -S magnet, CMSE or DMSE reed and electronic switches drop directly into the side grooves for position sensing. The G1/4 air ports drive a 30-800 mm/s operating speed, and adjustable 20.5 mm air cushions at both ends soften the impact at stroke extremes. For tasks requiring opposing or adjustable reach, consider the related JSID double-rod or JSIJ adjustable-stroke variants.
Airtac JSI Series Standard Cylinder JSI50X750S Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI50X750S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 750 mm |
| Acting type | Double acting |
| 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 JSI Series Standard Cylinder JSI50X750S
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×750 | 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 JSI Series Standard Cylinder JSI50X750S Is Used
Carton Pushing
Extends 750 mm to push heavy cardboard cartons from a packaging conveyor to a downstream sorting lane using the 982 N push force.
Vertical Material Lift
Raises 50 kg tote bins between warehouse levels, relying on the built-in -S magnet to trigger DMSE sensors at the top and bottom travel limits.
Lab Sample Handling
Moves sample racks along a 750 mm path inside testing equipment, where the compact JIS profile saves space compared to standard ISO 15552 units.
Is the Airtac JSI Series Standard Cylinder JSI50X750S the Right Cylinder?
When sizing this 50 mm bore, step down to a 40 mm model for 628 N at 0.5 MPa, or move up to a 63 mm unit for 1559 N if your payload exceeds the 589 N safe working load. This 750 mm stroke demands careful mounting to prevent rod bending; always use an external guide rail to absorb side loads and prevent mechanical binding over the long travel distance. Remember that the adjustable cushion only decelerates the piston near the end caps and does not act as a brake. If gravity or air loss could cause the load to drift, install an external rod lock or a pilot-operated check valve to hold the position securely.
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 JSI Series Standard Cylinder JSI50X750S FAQ
This 50 mm bore cylinder features a G1/4 air port and an M18x1.5 rod thread. It generates 982 N push and 825 N pull at 0.5 MPa, 1374 N push and 1154 N pull at 0.7 MPa, with a theoretical maximum of 200 kgf at 1.0 MPa.
No, the air cushion only decelerates the piston near the end of the stroke and does not function as a locking brake. The piston will drift if air is lost or the valve is centered, so you must use an external rod lock or pilot-operated check valve to hold a vertical load safely.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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