Detailed Description
When Standard Is Not Enough
Every product in our reeling cable catalog is designed for a specific application — gantry crane, bucket wheel reclaimer, portal crane, mobile crane. These are standard industrial categories with well-defined requirements.
This product exists for applications outside those categories — where the environment, performance requirement, or certification standard cannot be met by a standard cable. It is not a product you order from a catalog. It is an engineered solution we design with you.
The Engineering Process
- You define the requirement: Environment (temperature, chemicals, pressure, radiation), electrical (voltage, current, signal types), mechanical (tensile load, bend radius, cycling frequency, drum geometry), and certification (MIL-spec, nuclear, marine classification, ATEX)
- We select materials: Conductor type and plating, insulation compound, jacket compound, tensile reinforcement type and grade, shielding configuration, armor type — every material choice is driven by your specification, not by what is in stock
- We design the construction: Core arrangement, stranding geometry, filler density, layer separation, jacket thickness, tensile core integration — designed for your specific mechanical loads
- We prototype and test: Short sample lengths manufactured and tested to your acceptance criteria. Test reports provided. Design iteration if needed.
- We produce and certify: Full production run with complete material traceability, in-process inspection, and final acceptance testing. Documentation package meets your certification requirements.
Material Selection Guide by Environment
| Environment | Conductor Plating | Insulation | Jacket | Tensile | Special Features |
|---|---|---|---|---|---|
| Cryogenic (-196°C) | Silver-plated copper | PTFE or FEP | FEP | Stainless steel | Embrittlement-tested at LN₂ temp |
| High-temp (+180°C) | Nickel-plated copper | Silicone or FEP | Silicone + glass braid | Stainless steel | Thermal aging verification |
| Subsea (3 000 m) | Tinned copper | PE or XLPE | HDPE or PUR | Galvanized or stainless steel | Hydrostatic pressure tested, H₂S resistant |
| Nuclear (Class 1E) | Tinned copper | XLPE or EPR | CSPE (Hypalon) | Steel | LOCA + radiation tested per IEEE 383 |
| Military/Defense | Tinned copper | XLPE | CSPE or PUR | Steel or Kevlar | MIL-DTL shock/vibration, LSZH |
| Chemical (acid/alkali) | Tinned or nickel | FEP or PFA | FEP or PFA | Depends on mechanical | 168 h immersion test per customer chemical |
| Low-smoke zero-halogen | Tinned copper | XLPE or EPR | PUR or TPE | Kevlar (non-metallic) | IEC 60754-1/2, IEC 61034-1/2 smoke |
Why Yichi for Specialty Heavy Duty?
- Material-agnostic engineering: We recommend the right material for your application — not the material we have in stock or the one with the highest margin
- Single-source responsibility: Conductor, stranding, insulation, cabling, jacketing, testing, certification — all in-house. No subcontracting to unknown quality
- Documentation to your standard: MIL-spec material certs, nuclear quality assurance (10 CFR 50 Appendix B), API 17E umbilical qualification — we understand the documentation requirements
- Minimum order flexibility: Prototype quantities from 100 m — we do not require 5 000 m to start an engineering project