Airtac JSI Series Standard Cylinder JSI50X730STC
The AirTAC Airtac JSI Series Standard Cylinder JSI50X730STC is a genuine double acting JIS-standard air cylinder with a Ø50mm bore and 730mm 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
- Stroke730 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 JSI50X730STC
Delivering 982 N of push force at 0.5 MPa, the AirTAC JSI50X730STC is a double-acting JIS-standard profile cylinder built for long-reach tasks. Its extruded hard-anodized aluminum barrel contains no external rods, making the unit shorter and more compact than an ISO 15552 cylinder of the same 50 mm bore. The internal two-way piston seal retains grease for a long, low-friction service life. Because this SKU includes the -S magnet, you can drop CMSE or DMSE reed and electronic switches directly into the side grooves for position sensing.
With a 730 mm stroke, plan for about 589 N of real work at 0.5 MPa, which safely lifts a 50 kg part vertically with a 2:1 margin. The G1/4 port and M18x1.5 rod thread handle airflow and mounting, while adjustable 20.5 mm air cushions at both ends decelerate the piston smoothly. For applications needing opposing or adjustable reach, consider the related JSID double-rod or JSIJ adjustable-stroke variants.
Airtac JSI Series Standard Cylinder JSI50X730STC Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI50X730STC |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 730 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 JSI50X730STC
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×730 | 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 JSI50X730STC Is Used
Packaging Line Diverter
Pushes heavy cartons across a 730 mm transfer gap with 982 N of force at 0.5 MPa, relying on the compact profile to fit within tight conveyor frame clearances.
Vertical Parts Elevator
Lifts approximately 50 kg tote bins between processing tiers, using the -S magnet and DMSE sensors to confirm upper and lower positions precisely.
Long-Reach Clamping Press
Extends across a wide bed to hold automotive sub-assemblies, where the hard-anodized barrel resists wear and the adjustable cushion softens the end-of-stroke impact.
Is the Airtac JSI Series Standard Cylinder JSI50X730STC the Right Cylinder?
When sizing this 50 mm bore, stepping down to a 40 mm bore drops the 0.5 MPa push force to 628 N, while stepping up to a 63 mm bore raises it to 1559 N. The included TC trunnion mount suits pivoting articulation, and you can pair it with I, Y, F, or U rod knuckles. Because the stroke is 730 mm, support the load with an external guide to prevent rod bending and excessive side loading. Note that air cushions only decelerate the piston near stroke end; if air is lost, the piston drifts. Use an external rod lock or pilot-operated check valve to hold a suspended load safely.
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 JSI50X730STC 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. Operating speed ranges from 30-800 mm/s.
It is a JIS-standard profile cylinder that is shorter and more compact than an ISO 15552 cylinder of the same bore. It uses an extruded aluminum barrel without external rods. The TC trunnion mount provides pivoting support, and the built-in -S magnet allows CMSE/DMSE sensors to track position.
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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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