MCP & MCPTJ Coal Cutter and Shearer Screened Flexible Cable (0.66/1.14–1.9/3.3 kV)

MCP and MCPTJ coal cutter and shearer cables provide combined traction/cutter power, earth-fault protection and multi-core pilot control for longwall drum shearers moving back and forth along armoured face conveyors (AFC). Built to MT/T 818.2-2009, MT/T 818.3-2009 and MT/T 818.4-2009 (GB/T 12972.2–12972.4), the cable integrates three screened power cores (16 mm² to 150 mm²), one interstitial grounding conductor and a dedicated multi-core control sub-assembly (typically 4 × 4 mm² or 4 × 6 mm²) within a torsion-balanced round profile.

Type MCP uses extruded semiconductive elastomer screens over each +90 °C EPR-insulated power core for 0.66/1.14 kV and 1.9/3.3 kV shearer systems, whereas Type MCPTJ incorporates a tinned-copper wire and synthetic-yarn composite metallic phase screen plus pilot monitoring cores (J) for enhanced ground-fault sensitivity and interlock protection on high-output longwall faces.

To survive thousands of reverse-bending cycles inside Bretby-type shearer cable handler chains, the cabled core assembly is cushioned by a semiconductive elastomeric center cradle, bound with anti-torsion reinforcing braid and protected by a high-tear-strength flame-retardant polychloroprene (PCP) outer jacket.

State the required model (MCP or MCPTJ), rated voltage (0.66/1.14 kV or 1.9/3.3 kV), power and control core cross-sections, and shearer cable handler chain inner dimensions when requesting a quote. TEBAOFLEX supplies custom shearer cable lengths from a 50 m minimum order quantity with a standard lead time of 7–45 working days.

Explore the mining and tunneling cable range for related configurations.

For general underground coal face trailing cables and DIN VDE 0.6/1 kV coal cutter cables, compare these specifications: MYP & MYPT Screened Flexible Coal Mining Cable (0.38/0.66–1.9/3.3 kV) (for 0.38/0.66 kV to 1.9/3.3 kV mobile underground drills, shuttle cars, and auxiliary face equipment); NSSHKCGEOEU 0.6/1kV Coal Cutter Trailing Cable (for VDE 0.6/1 kV coal cutter trailing service with individual core screens and high tear resistance). Verify power core cross-section, pilot bundle core count, and monitoring circuit type (MCP vs MCPTJ) before ordering.

Construction

The representative construction illustrates MCPTJ 1.9/3.3 kV 3×95 + 1×35 + 4×6 mm²: three equal Class 5 flexible tinned-copper power cores with +90 °C EPR insulation and composite metallic screens, one uninsulated flexible tinned-copper earth core in the lower interstitial valley, and one round jacketed four-core control sub-assembly (4 × 6 mm²) in the upper interstitial valley, cabled around a central profile cradle and enclosed in a braid-reinforced black flame-retardant rubber outer jacket.

Applications

Size the power cores for the combined cutter-motor and haulage-drive load, and verify that the cable outside diameter fits freely inside the longwall shearer cable handler troughs.

• 0.66/1.14 kV MCP and MCPTJ longwall drum shearer trailing cables guided in Bretby-type articulated cable handler chains.
• 1.9/3.3 kV MCP and MCPTJ high-power longwall coal cutter cables for medium- and thick-seam automated longwall faces.
• Combined power, haulage control, emergency-stop interlock and pilot earth-continuity monitoring in a single round shearer cable.
• Continuous reverse bending along the armoured face conveyor pan line at a minimum dynamic bending radius of 6 × D (0.66/1.14 kV) to 10 × D (1.9/3.3 kV).

When engineering longwall shearer cable handler chains and medium-voltage cutter feeds, review these pages: Mining Cable Solutions for Mobile Equipment and Tunneling (for underground longwall, room-and-pillar, and TBM tunneling cable system engineering); NTSKCGECWOEU 1.8/3–3.6/6 kV Coal Cutter Chain Cable (for 1.8/3 kV and 3.6/6 kV VDE coal cutter chain cables on high-output longwall faces). Confirm Bretby chain inner trough width, minimum dynamic bend radius, and axial tensile load.

Specifications

These are the standards this construction is designed and manufactured to (MT/T 818.2, MT/T 818.3, MT/T 818.4 and GB/T 12972).

Continuous ampacities are rated at +90 °C conductor temperature in +25 °C ambient air; apply appropriate grouping correction when multiple cables are stacked inside enclosed troughs.

Custom control core counts (such as 7 × 2.5 mm² or integrated optical fibres) can be manufactured to match specific shearer OEM pinouts.

Standards

IEC 60228 Flexible Conductor Stranding Reference