Airtac JSI Series Standard Cylinder JSI50X75
The AirTAC Airtac JSI Series Standard Cylinder JSI50X75 is a genuine double acting JIS-standard air cylinder with a Ø50mm bore and 75mm 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
- Stroke75 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 JSI50X75
Delivering 982 N of push force at 0.5 MPa, the AirTAC JSI50X75 is a double-acting JIS-standard profile cylinder built for tight machinery layouts. It is purposefully shorter and more compact than an equivalent ISO 15552 model of the same 50 mm bore. The extruded hard-anodized aluminum barrel omits external rods to resist wear, while the two-way piston seal retains grease for a long, low-friction service life.
This specific SKU lacks the internal magnet, so it cannot host CMSE or DMSE position sensors without upgrading to the -S variant. With a 982 N rating at 0.5 MPa, plan for roughly 589 N of actual safe working load, which translates to lifting about 50 kg vertically with a 2:1 safety margin. The unit features a G1/4 port and an M18x1.5 rod thread.
Airtac JSI Series Standard Cylinder JSI50X75 Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI50X75 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 75 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 JSI50X75
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×75 | 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 JSI50X75 Is Used
Package Diverting
Pushes 50 kg cartons at 90 degrees on a packaging line using a safe 589 N working load at 0.5 MPa.
Gate Mechanisms
Actuates lightweight access doors on machine guards where the 75 mm stroke and compact JIS profile save floor space.
Part Ejection
Ejects molded plastic parts from a press, utilizing the 825 N pull force at 0.5 MPa for reliable retraction.
Is the Airtac JSI Series Standard Cylinder JSI50X75 the Right Cylinder?
When sizing this 50 mm bore actuator, verify your force needs against its neighbors: stepping down to a 40 mm bore drops the 0.5 MPa push force to 628 N, while moving up to a 63 mm bore increases it to 1559 N. Because this is a standard double-acting cylinder, it will drift if air pressure is lost or the valve is centered, as the adjustable 20.5 mm air cushions only decelerate the piston near stroke ends rather than locking it. To sustain a suspended load, incorporate an external rod lock or a pilot-operated check valve. For mounting, you can utilize LB foot brackets, FA/FB flanges, CA/CB clevises, TC trunnions, or I/Y/F/U rod knuckles.
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 JSI50X75 FAQ
The JSI50X75 delivers 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. The air port size is G1/4.
It is a JIS-standard profile cylinder that is shorter and more compact than an ISO 15552 cylinder of the same 50 mm bore. Note that this specific SKU has no magnet, so it cannot support CMSE or DMSE sensors without the -S option.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
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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