Pull-Only Rotary Control Cable – Phidix Non-Locking Series
This page provides the official overview for Phidix's
industrial-grade non-locking rotary control cables.
For customization options or stainless steel configurations, please
visit our Rotary Cable Customization Page.
What Is a Rotary Control Cable?
Phidix’s rotary control cable converts rotational input (typically
up to 270°) into linear motion, enabling remote actuation of
mechanical systems—without the complexity of electronics or
hydraulics.
This cable is non-locking, meaning it returns freely without
ratcheting or detents. It’s ideal for manual HVAC controls, heater valves, dampers, marine
shut-offs, and other applications where smooth, push-pull motion is
required.
Core Working Principle: 270° Turn = 1.5" Linear Travel
Internally, the cable features a flexible spiral-wound inner core
housed within a reinforced conduit. The rotary handle turns an input shaft (CW or CCW), driving the
internal wire to create up to 1.5 inches of linear stroke at the
output.
A simplified schematic:
Rotational Input → Linear Output
This design ensures tight transmission, minimal backlash, and
precise movement for systems requiring remote yet mechanical
control.
Why Choose Mechanical Rotary Over Electronic Actuation?
| Feature | Mechanical Rotary Cable | Electronic Actuator |
|---|
| Wiring complexity | None | Requires wiring & power |
| Failure tolerance | Manual override always possible | May require diagnostic tools |
| Environment resistance | Tolerates dust, vibration, moisture | Often needs enclosures |
| Maintenance | Simple replacement | May require service technician |
Phidix rotary cables are ideal for rugged, space-limited environments where simplicity and reliability matter more than automation.
Structural Composition & Materials
• Input Shaft: Brass (standard); CW or CCW available
• Inner Wire: 1x7 stainless steel core
• Housing: Reinforced plastic with mounting threads
• Output End: Ball stud, loop, or custom rod fitting
Mounting Thread: M12 x 1.0 or 3/8-24 UNF
Return Spring: Optional for applications needing reset force
Common Applications
| Application | Use Case |
|---|
| HVAC Systems | Manual vent or damper actuation |
| Commercial Vehicles | Heater valve control in cab |
| Marine Engines | Shutdown levers, choke control |
| Agriculture Machinery | Enclosed linkage actuation |
This cable is often integrated into panel-mounted rotary knobs, transmitting force to components several feet away—even through
curved routing.
Technical Specifications
| Parameter | Value |
|---|
| Travel Stroke | 1.5" (± 0.1") |
| Input Angle | 270° ± 10° |
| Cable Length | 12" – 72" (customizable) |
| Temperature Range | –30°C to +100°C |
| Input Shaft | Brass or stainless steel |
| Thread Interface | 3/8-24 UNF or M12 |
Need a different travel range, thread, or material? View Custom Options →
Frequently Asked Questions
Q: Is this cable reversible?
Yes. It can be configured for CW or CCW input rotation.
Q: Can the cable be mounted in confined dashboards?
Absolutely. Its flexible housing and threaded shaft make it easy to panel-mount
in tight enclosures.
Q: What’s the minimum order quantity?
We offer both low-volume prototypes and OEM-level batch runs. Contact us for details.
Q: Can I request longer travel stroke or dual-end actuation?
Those are available under custom configurations. See customization page for details.
Request a Quote or Drawing Match
If you're designing a panel control interface or replacing an older
rotary actuator, Phidix can supply matched parts or design-to-spec.
