Airtac JSI Series Standard Cylinder JSI50X600SFA
The AirTAC Airtac JSI Series Standard Cylinder JSI50X600SFA is a genuine double acting JIS-standard air cylinder with a Ø50mm bore and 600mm 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
- Stroke600 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 JSI50X600SFA
Delivering 982 N of push force at 0.5 MPa, this double-acting 50 mm bore cylinder is built for long 600 mm reach tasks. Because it uses a JIS-standard extruded aluminium profile instead of external rods, the overall body is noticeably shorter and more compact than an equivalent ISO 15552 unit of the same bore. The hard-anodized barrel resists wear, while the two-way piston seal retains grease for a long, low-friction service life.
With the built-in -S magnet, you can drop CMSE or DMSE reed and electronic switches directly into the side grooves for position sensing. For real-world sizing, plan for about 589 N of actual work at 0.5 MPa, which means it lifts roughly 50 kg vertically with a 2:1 safety margin. The unit features a G1/4 port, an M18x1.5 rod thread, and adjustable air cushions at both ends to smooth out the long travel.
Airtac JSI Series Standard Cylinder JSI50X600SFA Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI50X600SFA |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 600 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 JSI50X600SFA
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×600 | 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 JSI50X600SFA Is Used
Carton Diverting
Pushes packages across a 600 mm wide conveyor belt in logistics sorting hubs, utilizing the 982 N push force to redirect heavy cartons smoothly.
Pallet Push-Off
Acts as a sweep-off arm in end-of-line packaging, using the long 600 mm stroke to clear assembled boxes from a palletizing zone.
Textile Beam Indexing
Shifts heavy fabric beams laterally on weaving machinery, where the compact JIS profile saves valuable floor space compared to standard ISO 15552 cylinders.
Is the Airtac JSI Series Standard Cylinder JSI50X600SFA the Right Cylinder?
When sizing this actuator, consider the adjacent bores: a 40 mm JSI provides 628 N of push at 0.5 MPa if your load is lighter, while stepping up to a 63 mm bore yields 1559 N for heavier demands. This 50 mm model includes an FA flange mounting interface for secure front attachment. Because the stroke is 600 mm, you must account for side loads and rod-bending moments—using an external guide rail is highly recommended to prevent premature seal wear. Note that a standard pneumatic cylinder drifts when air is lost or the valve is centered; the end cushions only decelerate the piston and do not act as a lock. Use a pilot-operated check valve or external rod lock if you need to hold a suspended load.
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 JSI50X600SFA FAQ
This 50 mm bore cylinder has a G1/4 air port and an M18x1.5 rod thread. The thrust ratings are 982 N push and 825 N pull at 0.5 MPa, 1374 N push and 1154 N pull at 0.7 MPa, and a theoretical maximum of 200 kgf at 1.0 MPa. It operates at speeds between 30 and 800 mm/s.
The JIS-standard profile design makes it shorter and more compact than an ISO 15552 cylinder of the same 50 mm bore, saving machine space. The FA suffix indicates a front flange mounting style. Additionally, the S suffix means it includes a piston magnet for use with CMSE or DMSE position sensors in the side grooves.
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Standard models are processed and dispatched in 3-5 business days.
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