TEBAOFLEX 2000V Type W Magnet Crane Cable is an extra-flexible, impact-armoured portable power lead engineered for electromagnetic scrap-yard cranes, steel-mill billet/plate lifting magnets, foundry charge cranes, and severe-flexing material-handling booms. Combining 30 AWG rope-lay bare copper conductors (8 AWG to 2/0 AWG in 2-core and 4-core builds), heavy-wall 2,000 V thermoset EPDM insulation, and a vulcanized aramid-braid-reinforced double thermoset jacket, it withstands inductive DC magnet discharge spikes and sharp scrap-steel abrasion.
1. Application Scope & Scrapyard Duty Demands
Standard industrial power cables fail prematurely on lifting-magnet cranes due to two simultaneous failure mechanisms: internal dielectric breakdown caused by inductive DC coil field-collapse spikes, and external jacket laceration from jagged scrap, boom sheaves, and spring take-up drums. TEBAOFLEX 2000V Type W addresses both hazards across heavy metal-handling duties:
- Scrapyard Hydraulic & Rope Excavator Magnet Leads: Boom-sheave and spring-reel drop leads feeding circular scrap-handling electromagnets (typically
230 V DCnominal with1.2–1.8 kVinductive switching transients). - Steel-Mill Billet, Slab, Coil & Rail Trimming Cranes: Overhead magnet beam feeders exposed to
+90°C/+105°Cradiant mill heat, scale dust, hydraulic oil mist, and continuous cyclic drum winding. - Foundry Charge Cranes & Severe Portable Power: Heavy-duty
2000 Vportable power circuits in slag pits, shipbreaking yards, and demolition attachments where impact and cut-through threats dominate.
For container spreader baskets, high-speed motorized crane drums, or overhead trolley loops, compare our port crane spreader basket cable, (N)SHTÖU-O / -J heavy-duty rubber reeling cable, and port & crane cable engineering guide.
Inductive Surge & Mechanical Strain-Relief Rule: De-energizing an electromagnetic lifting magnet generates sharp inductive voltage spikes—always maintain the magnet controller’s discharge resistor/varistor network and anchor pulling loads on the aramid-reinforced outer jacket using stainless-steel basket grips so copper terminations never carry suspended cable weight.
2. Cable Construction (6-Layer Heavy Thermoset Architecture)
Built around North American ICEA S-75-381 / NEMA WC 58 Type W heavy portable-power principles, every layer is engineered for severe cyclic flexing and crush resistance:
30 AWG (0.254 mm) annealed bare electrolytic copper rope stranding (168/30 up to 1330/30) minimizing flexural fatigue over boom sheaves and take-up reels.30 AWG copper strands, while permitting micro-slippage during tight bends.-50°C to +105°C thermal stability.
3. Technical Characteristics
Reference electrical, thermal, and mechanical parameters for the TEBAOFLEX 2000V Type W Magnet Crane Cable family are summarized below:
| Parameter | Engineering Reference Value |
|---|---|
| Cable Type & Design Basis | Heavy-duty Type W magnet crane portable power cable (ICEA S-75-381 / NEMA WC 58 design basis) |
| Rated Operating Voltage | 2,000 V AC/DC (sized for 230–550 V DC magnets with high inductive transient surges) |
| Conductor Construction | 30 AWG rope-lay extra-flexible annealed bare copper (ASTM B3 / B172 reference) |
| Reference Thermal Envelope | -50°C cold-impact flexing up to +90°C / +105°C thermoset EPDM conductor rating |
| Minimum Bending Radius | Static routing: 6 × OD; dynamic spring-reel / boom-sheave flexing: 8 × to 10 × OD |
| Mechanical & Fluid Resistance | Heavy crush, impact, cut-through, mineral/hydraulic oil, ozone, UV, and moisture resistance |
| Flame & Marking Options | Flame-retardant thermoset compound (FT1 / FT5 / MSHA-grade flame formulations available by project order) |
4. 2-Core & 4-Core Specification Table (8 AWG to 2/0 AWG)
Select from the 11 standard 2-conductor and 4-conductor configurations below (ampacity column shows single-cable 90°C conductor / 40°C ambient open-air reference per ICEA S-75-381; derate for multi-layer spring reels):
| Part / SKU | AWG × Cores | Metric Equiv. (mm²) | 30 AWG Rope Stranding | Nom. Insulation Wall (mm) | Approx. Outer OD (mm) | Approx. Weight (kg/km) | 90°C Open-Air Ampacity Ref. (A) |
|---|---|---|---|---|---|---|---|
TEB-MAG-8AWG-2C | 8 AWG × 2C | 2 × 8.37 | 168 / 30 | 1.52 | 20.6 | 595 | 74 |
TEB-MAG-6AWG-2C | 6 AWG × 2C | 2 × 13.3 | 259 / 30 | 1.52 | 23.6 | 805 | 99 |
TEB-MAG-4AWG-2C | 4 AWG × 2C | 2 × 21.2 | 420 / 30 | 1.52 | 27.4 | 1,145 | 130 |
TEB-MAG-2AWG-2C | 2 AWG × 2C | 2 × 33.6 | 665 / 30 | 1.52 | 31.8 | 1,650 | 174 |
TEB-MAG-1AWG-2C | 1 AWG × 2C | 2 × 42.4 | 836 / 30 | 2.03 | 36.6 | 2,170 | 202 |
TEB-MAG-1/0-2C | 1/0 AWG × 2C | 2 × 53.5 | 1045 / 30 | 2.03 | 39.6 | 2,620 | 234 |
TEB-MAG-2/0-2C | 2/0 AWG × 2C | 2 × 67.4 | 1330 / 30 | 2.03 | 43.4 | 3,215 | 271 |
TEB-MAG-8AWG-4C | 8 AWG × 4C | 4 × 8.37 | 168 / 30 | 1.52 | 25.1 | 950 | 65 |
TEB-MAG-6AWG-4C | 6 AWG × 4C | 4 × 13.3 | 259 / 30 | 1.52 | 28.7 | 1,310 | 87 |
TEB-MAG-4AWG-4C | 4 AWG × 4C | 4 × 21.2 | 420 / 30 | 1.52 | 33.5 | 1,920 | 114 |
TEB-MAG-2AWG-4C | 2 AWG × 4C | 4 × 33.6 | 665 / 30 | 1.52 | 38.9 | 2,810 | 152 |
5. Frequently Asked Engineering Questions
Why is a 2000V Type W rating used on 230V DC lifting-magnet circuits?
Although industrial lifting magnets commonly operate at 230 V DC, de-energizing a large inductive magnet coil generates high reverse-polarity voltage spikes (often 1,000 V to 1,800 V peak even with discharge resistors). Specifying heavy-wall 2,000 V Type W thermoset EPDM insulation prevents dielectric puncture from repetitive switching transients and mechanical compression.
Why use 30 AWG rope-stranded bare copper instead of standard Class B or Class C building wire?
Magnet crane leads flex thousands of times per shift over spring take-up drums, sheaves, and boom tracks. Constructing 8 AWG through 2/0 AWG conductors from hundreds of ultra-fine 30 AWG (0.254 mm) copper wires in rope-lay bundles (e.g., 259/30 on 6 AWG and 665/30 on 2 AWG) prevents work-hardening strand breakage under continuous shock and bending.
When should I select a 2-conductor vs. a 4-conductor magnet crane cable?
2-conductor Type W cables (8 AWG through 2/0 AWG) supply standard single-coil DC scrapyard and billet magnets. 4-conductor Type W cables (8 AWG through 2 AWG) are used where parallel conductor pairing reduces bend stiffness, where dual-zone/split magnet coils are controlled independently, or where dedicated equipment grounding/monitoring conductors are integrated.
How does the aramid-reinforced double-layer thermoset jacket extend scrapyard service life?
Scrapyard and steel-mill leads face jagged plate edges, flying slag, oil, and pinch impacts. Embedding an open-weave aramid reinforcing braid vulcanized between the inner and outer thermoset CPE/PCP rubber layers locks the two jackets into a unitary wall that resists longitudinal tearing, cut propagation, and jacket slippage on spring reels.
Can 2000V Type W magnet cable run on spring-driven magnet reels and crane sheaves?
Yes, Type W magnet cable is widely installed on heavy spring-driven magnet take-up reels, boom-mounted guide sheaves, and scrapyard cable tracks when minimum sheave/drum barrel diameters respect at least 8 × to 10 × cable OD and strain-relief basket grips anchor the outer jacket.
What technical data should I submit for a 2000V Type W magnet crane cable quote?
Provide magnet nominal DC voltage and cold/hot current (amps), duty-cycle percentage (e.g., 50% or 75% ED), 2-core or 4-core layout, AWG size, reel drum/sheave diameters, ambient foundry or sub-zero temperature extremes, and required cut or reel lengths.
Configure Your 2000V Type W Lifting Magnet Crane Cable
Share your magnet coil current, 2C or 4C AWG size, spring-reel or boom-sheave diameter, and cut-length schedule. TEBAOFLEX engineers will confirm outer diameter tolerances, ampacity derating, and factory pricing within 24 hours.
