FITTINGS
Cablecraft offers a wide variety of standard cable end-fittings which simplify the design process saving you time to market and minimizing development costs. We offer both zinc die-cast fittings as well as steel fittings. Our Engineering team will also design the correct custom cable fittings to meet any unique or proprietary design requirements.
The use of these components, combined with cable specifications and technical information provided in our Engineering Resources, gives the designer flexibility in solving many unique functional problems.
Push-Pull Cable Specifications
Cablecraft uses only the highest quality stranded push-pull cable material to meet your unique requirements. All of our cable is “Commercial Grade” and is constructed to exact quality standards to meet all specifications for flexibility, size and minimum breaking strength.
Use our Engineering Resources to choose the right cable for your application. It will be necessary to match the correct OD of the cable with the proper ID of the conduit allowing for an acceptable amount of tolerance. Use our Control Cable Design Guide to aid you in making the proper selection.
CONDUITS
Every control cable assembly application has unique requirements. Cablecraft offers a full line of conduit choices to meet your specific needs. Whether it’s flexible routing with good compressive strength or a more rigid application with good crush resistance, Cablecraft has the right conduit for you. Our conduits include Braided, Round Wire and Flat Wire Bowden, Long Lay and reinforced Long Lay. Optional liner materials are also offered to meet your application requirements.
Cablecraft offers both shuttle-molded and steel conduit fittings which can be combined with our standard controls and actuators to create a reliable and cost-effective push-pull cable assembly.
PROTOTYPES
Prototypes are available and are an invaluable way to finalize the dimensional and tolerance requirements of any assembly. Life cycle and durability testing can also be conducted on prototypes, prior to production.
DESIGN
You can get started by using our design considerations or you can download our Motion Control Design Guide to help analyze, define, design and specify the most appropriate push-pull cable assembly for your specific application. The Design Guide contains useful information and technical data necessary to develop a functional and effective push-pull cable assembly. Cablecraft’s Sales and Engineering departments welcome your inquiries and can assist you with your motion control cable design project.
Design Considerations
Push applications are the most difficult to accomplish with ordinary cable assemblies because of the required column strength of the wire or cable core.
- In all but the lightest of loads, a solid wire or Armored Core must be used for pushing applications. A 1×7 or 1×19 cable may be used for very light load applications.
- The cable assembly routing in the final application needs to have as few bends or turns as possible with large, generous radii although stranded core will be more forgiving.
- Working loads should be highest in the pull direction. In the compression mode the loads need to be specified at 50% of the pull load unless using Armored Core which will yield a higher compression to tension ratio.
- The travel dimension should be limited to 2 inches or less.
- Remember that the amount of cable travel will be dependent upon the total number of bends in the system as well as the difference between cable outside diameter and conduit inside diameter. This is known as lost motion in the cable assembly.
- Cablecraft has a large number of zinc die-casted and steel swaged cable end-fittings and steel or molded conduit end-fittings to simplify your design. Custom cable and conduit end-fittings can also be considered.
- The alignment of the push-pull cable as it exits the conduit to the final attachment point must be as straight as possible.