Airtac JSI Series Standard Cylinder JSI50X75H
The AirTAC Airtac JSI Series Standard Cylinder JSI50X75H 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 JSI50X75H
Delivering 982 N of push force at 0.5 MPa, this double-acting 50 mm bore cylinder is built around a JIS-standard extruded aluminium profile that is physically shorter and more compact than an equivalent ISO 15552 unit. The hard-anodized barrel omits external rods to resist wear, while a heterogeneous two-way piston seal retains grease for a long, low-friction service life. Because this is the -H variant, it uses high-temperature Viton (FKM) elastomers instead of standard NBR, suiting hotter machine environments.
The 75 mm stroke moves at 30-800 mm/s through a G1/4 port, with a 20 mm rod and M18x1.5 thread. Plan for roughly 589 N of real work at 0.5 MPa, which translates to lifting about 50 kg vertically with a 2:1 safety margin. Note that this specific SKU lacks the -S magnet, so it cannot host CMSE or DMSE position switches.
Airtac JSI Series Standard Cylinder JSI50X75H Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI50X75H |
|---|---|
| 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 JSI50X75H
| 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 JSI50X75H Is Used
Package Diverting
Pushes light cartons off a packaging line using 982 N of thrust, where the compact profile fits neatly between conveyor belts.
Clamping Fixtures
Holds aluminium extrusions in a machining jig; the Viton -H seal handles the heat radiated from nearby spindle motors.
Vertical Lifting
Raises 50 kg tote bins vertically with a 2:1 safety margin, benefiting from the smooth 30-800 mm/s operation.
Is the Airtac JSI Series Standard Cylinder JSI50X75H the Right Cylinder?
When sizing this 50 mm bore, stepping down to a 40 mm unit drops the 0.5 MPa push force to 628 N, while moving up to a 63 mm bore raises it to 1559 N. The 75 mm stroke is short enough to avoid significant rod-bending issues, but always guide the load to prevent side forces. Because a standard cylinder vents and drifts when air is lost or the valve centres, fit an external rod lock or pilot-operated check valve if you need to hold a load securely mid-stroke. The adjustable 20.5 mm air cushions only decelerate the piston near the end caps. For electronic position feedback, you must select the -S magnet version to use CMSE or DMSE sensors in the side grooves. Mounting options include LB foot, FA/FB flange, CA/CB/CR clevis, TC trunnion, 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 JSI50X75H 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. The air port size is G1/4.
No, this specific SKU does not include a magnet. To use CMSE or DMSE switches in the side grooves, you must purchase the -S variant of the JSI50.
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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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