Semi-Finished Coaxial Cable
Semi-Finished Coaxial Cable RG6
75 Ohm CATV Core Ready for Your Own Shielding and Jacket
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Semi-Finished Coaxial Cable RG59
75 Ohm Core for Analogue Video and CCTV Production
Product Overview
What This Product Is
RG59 in semi-finished form is the conductor, foamed PE dielectric and optional shield layers with the outer jacket left off. It is the working core behind analogue video and CCTV cable, and it is bought by plants that finish the cable themselves — sometimes as plain coax, sometimes siamesed with a power pair. Because the jacket is not yet on, the same core can end up as a PVC indoor cable, an LSZH cable for public buildings or a PE cable for outdoor runs.
Semi-Finished Coaxial Cable
Key Benefits
What It Gives Your Production Line
One Core, Several Finished Products
Plain video cable, siamese CCTV cable or a custom composite — the jacketing stage decides, not the core purchase.
Attenuation Held Where CCTV Needs It
About 7.0 dB/100m at 100 MHz over a DC to 750 MHz range, which is the working band for analogue video.
Conductor Grade Priced to the Market
BC for professional installs, CCS or CCA where the tender is price-led, all in the same RG59 geometry.
Clean Surface for Jacket Adhesion
Film-wrapped reels keep the shield free of dust and moisture, which shows up as fewer jacket defects downstream.
Application Scenarios
Where It Is Used
- Analogue video and CCTV surveillance systems
- Short and medium distance CATV distribution
- Low-frequency RF applications
- Residential and commercial video wiring
Who It Is For
Who Buys It
- CCTV cable assemblers who add their own jacket and connectors
- Security-cable brands running private-label production
- Cable plants filling RG59 orders without tying up a foaming line
Problems It Solves
The Reasons Buyers Move To This Product
Siamese Cable Needs a Bare Core
You cannot bond a power pair neatly to an already-jacketed coax. Starting from the core makes siamese construction straightforward.
Low-Margin Product, High Changeover Cost
RG59 sells on price. Buying the core keeps your extruder on the jobs where the margin actually is.
Mixed Conductor Demand
Some tenders demand bare copper, others accept CCS. Both are available in the same core spec, so quoting does not force a process change.
Technical Features
Construction And Materials
- Dielectric: foamed PE
- Conductor: BC, CCA, CCS or CCAM
- Shield construction: foil + braid, tri-shield or quad-shield
- Braid coverage: 40 to 95 percent standard, 53/35 percent on quad-shield
- Foil: aluminium or copper
- No outer jacket — supplied for downstream extrusion
Certifications And Compliance
No product certification is claimed for this item beyond the standards named in the specification table. Where a specific certificate is required for your market, ask before ordering and we will confirm what can be provided.
Specifications
Published Figures
| Characteristic Impedance | 75 Ω |
|---|---|
| Capacitance | Approx. 50 pF/m |
| Nominal Velocity of Propagation | 85% |
| Attenuation | Approx. 7.0 dB/100m @ 100 MHz |
| Frequency Range | DC – 750 MHz |
| DC Resistance (Conductor) | Approx. 6.5 Ω/100m |
| Voltage Rating | 300 V |
| Core Length per Reel | 500 m or 1000 m, custom lengths available |
| Reel Type | Wooden or plastic reels |
| Net Weight | Approx. 14–20 kg per 500 m reel |
| Outer Jacket | Not included |
Figures are the published specification for this product. Values outside this table are confirmed in writing before order rather than estimated.
Manufacturing And Quality Control
How It Is Produced And Checked
Production runs from conductor preparation — rod drawing, annealing, stranding and surface cleaning — through foamed insulation extrusion with controlled cell size and on-line diameter monitoring, then foil wrapping and braiding to the shield specification ordered. The line stops before jacket extrusion.
Conductor Preparation
Rod drawing, annealing and surface cleaning so the insulation bonds without microvoids.
Insulation Monitoring
Insulation thickness and concentricity monitored continuously on line during extrusion.
Shield Verification
Foil overlap and braid coverage checked against the ordered shield construction.
Electrical Spot Check
Impedance and attenuation sampled against the published values for the construction.
Reel Packing
Reels wrapped in plastic film against moisture and dust, then cartoned or palletised.
Customisation Options
What Can Be Changed
- Conductor grade BC, CCA, CCS or CCAM
- Braid coverage 40 to 95 percent
- Aluminium or copper foil
- Standard, tri-shield or quad-shield
- Reel length and reel type
Use Guide
Working With It On Your Line
- Confirm the shield build on the reel label — standard and tri-shield cores look almost identical once wound.
- Store reels off the floor and keep the film wrap intact until the core is loaded.
- For siamese constructions, bond the power pair after the coax jacket cools to avoid dielectric deformation.
- Check impedance on a sample from each reel before a long production run.
Comparison
How It Compares Within The Range
Semi-Finished Coaxial Cable RG59 sits inside the Semi-Finished Coaxial Cable range. The products below are the closest alternatives or the parts most often ordered alongside it — compare the published specification tables rather than the descriptions when the choice is close.
Read Next
Applications Solutions And Guides
FAQ
Semi-Finished Coaxial Cable RG59 FAQ
What frequency range does RG59 cover?
DC to 750 MHz, which suits analogue video, CCTV and short-run CATV distribution.
Can I use this core for siamese CCTV cable?
Yes. Because there is no jacket, the core can be jacketed alone or run together with a power pair in your own construction.
How does RG59 compare to RG6 on loss?
RG59 is about 7.0 dB/100m at 100 MHz against roughly 6.5 dB/100m for RG6, and its usable range stops at 750 MHz rather than 1 GHz.
What is the minimum order?
Order quantity is agreed per specification. Send the conductor grade, shield build and reel length by WhatsApp or email for a quote.
Which reel types are available?
Wooden or plastic reels, typically 500 m or 1000 m per reel, with custom lengths on request.
Request A Quotation For Semi-Finished Coaxial Cable RG59
Send the construction, grade and quantity you need. We confirm the specification in writing before quoting.