MGM 112 Type 62/63/64 660/1100V Screened Armoured Mining Cable 4mm²
MGM 112 Type 62, 63 and 64 are 660/1100 V steel-armoured mining cables with two, three or four individually screened 4 mm² EPR cores, tinned Class 5 copper and a heavy-duty chloroprene sheath for small excavating and crushing loads.
- Rated / test voltage660/1100 V / 2.5 kV
- Cores × size2, 3 or 4 × 4 mm²
- ConductorTinned Cu, Class 5, 56/0.30
- Core screenCu/nylon braid on every core
- ArmourGalvanized steel, 7/0.45 mm
- Overall diameter23.9 – 28.9 mm
- Current rating28 A at 25 °C
- Weight1080 – 1400 kg/km
Download MGM 112 Type 62 / Type 63 / Type 64 datasheet (PDF)Full specifications
MGM 112 Type 62, Type 63 and Type 64 are one construction built in three core counts: two, three and four cores of 4 mm² tinned copper, each core EPR insulated and wrapped in its own tinned copper and nylon braid screen. The cores are laid up in contact, bedded in rubber compound, covered with galvanized steel pliable armour and finished with a heavy-duty chloroprene sheath. They are made to the MGM 112 specification of the Turkish Hard Coal Enterprises MGM mining cable series.
The specified duty is power supply for excavating and crushing machines and equipment, in deep mines where explosive gases and dust can accumulate and on the surface. At 660/1100 V and 28 A per core, the three types serve the smaller motors and auxiliary drives around a face or crusher, where every core needs a screen and the cable also needs steel armour against crushing and impact.
Browse the MGM mining cable category for the other cables in the Turkish hard coal MGM series or download the MGM 112 Type 62 / Type 63 / Type 64 datasheet (PDF).
Application & Features
Selection overview
The type number tells you the circuit. Type 62 (2×4 mm²) suits a single-phase or DC control or auxiliary feed, Type 63 (3×4 mm²) a three-phase motor without a separate neutral, and Type 64 (4×4 mm²) a three-phase circuit that needs a fourth insulated conductor. Because every core carries its own braid screen, an insulation fault on any conductor goes to earthed metal first, which is what earth-leakage protection on a mine distribution system relies on.
Typical loads are pumps, fans, small crushers, feeders and control panels at the face, in the roadway or at a surface crushing plant. The galvanized steel armour over the bedding protects the screened cores where the cable is laid along the floor or ribs and may be struck by falling rock or run over, and the chloroprene sheath resists abrasion and moisture. For larger machines needing 10 mm² and above, the MGM 112 armoured family continues with other core arrangements.
- Screen on every coreTinned copper and nylon braid over each of the 2, 3 or 4 cores gives each conductor its own earthed barrier.
- Steel pliable armourGalvanized steel armour, 7/0.45 mm, over a rubber bedding for mechanical protection in the roadway.
- One size, three core countsAll three types use 4 mm² 56/0.30 mm tinned Class 5 copper; pick the type by the number of conductors.
- Deep-mine and surface dutySpecified for mines where explosive gases and dust can accumulate, and for surface use; approval is quoted per order.
Specifications
Technical data
Values from the current TEBAOFLEX MGM 112 Type 62 / Type 63 / Type 64 datasheet. The final construction is confirmed on the approved datasheet for your order.
Electrical, mechanical and material data
| Parameter | Value |
|---|---|
| Rated voltage | 660/1100 V |
| Test voltage | 2.5 kV |
| Conductor | Stranded, tinned copper wire, IEC 60228 Class 5 |
| Insulation | EPR |
| Core screen | Tinned copper / nylon braid over each core |
| Core count | Type 62: 2 cores; Type 63: 3 cores; Type 64: 4 cores |
| Lay-up | Individually screened cores laid up in contact |
| Bedding | Rubber-based bedding compound |
| Armour | Galvanized steel pliable armour |
| Outer sheath | Heavy-duty chloroprene compound |
| Design specification | MGM 112 |
| Application | Power supply for excavating and crushing machines and equipment; deep mines where explosive gases and dust can accumulate, and surface use |
Technical data: MGM 112 Type 62 / Type 63 / Type 64
| Parameter | Unit | Type 62 / 2×4 | Type 63 / 3×4 | Type 64 / 4×4 |
|---|---|---|---|---|
| Cores / cross-section | mm² | 2×4 | 3×4 | 4×4 |
| Stranding | mm | 56/0.30 | 56/0.30 | 56/0.30 |
| Conductor diameter, nom. | mm | 2.60 | 2.60 | 2.60 |
| Insulation thickness | mm | 1.0 | 1.0 | 1.0 |
| Radial inner sheath | mm | 2.0 | 2.0 | 2.0 |
| Min. inner sheath diameter | mm | 16.2 | 17.1 | 18.7 |
| Max. inner sheath diameter | mm | 18.2 | 19.1 | 20.7 |
| Size of armour | mm | 7/0.45 | 7/0.45 | 7/0.45 |
| Radial outer sheath | mm | 2.5 | 2.5 | 2.5 |
| Min. overall diameter | mm | 23.9 | 24.8 | 26.4 |
| Max. overall diameter | mm | 26.4 | 27.3 | 28.9 |
| Min. bending radius | mm | 270 | 280 | 290 |
| Max. pulling tension | kgf | 48 | 72 | 96 |
| Approx. cable weight | kg/km | 1080 | 1230 | 1400 |
| Copper weight | kg/km | 132 | 200 | 264 |
| Current rating at 25 °C | A | 28 | 28 | 28 |
| Phase conductor resistance | Ω/km | 5.09 | 5.09 | 5.09 |
| Screens parallel | Ω/km | 5.5 | 3.9 | 2.8 |
| Armour | Ω/km | 4.91 | 4.63 | 4.16 |
| Reactance at 50 Hz | Ω/km | 0.119 | 0.119 | 0.119 |
| Reactance at 60 Hz | Ω/km | 0.143 | 0.143 | 0.143 |
| Insulation resistance at 20 °C | MΩ/km | 590 | 590 | 590 |
| Voltage drop at full load | mV/A/m | 12.38 | 10.72 | 10.72 |
Selection note: before ordering, ask our engineers to confirm the conductor operating temperature, core colours, sheath colour and marking for MGM 112 Type 62, 63 and 64, and the current rating for your installation conditions.
Standards & References
Applicable standards and compliance
- Design specificationMGM 112, the armoured and screened power cable specification in the Turkish Hard Coal Enterprises MGM mining cable series (MGM 101, 109, 110, 111, 112, 115 and 118).
- Conductor referenceStranded tinned copper conductors to IEC 60228 Class 5, 56/0.30 mm for the 4 mm² size.
- Voltage scope660/1100 V rated voltage and 2.5 kV test voltage.
- ApprovalsMine-authority approvals, type-test reports and marking requirements are confirmed and quoted per order.
Construction
Material and build-up
Type 62, 63 and 64 share every layer and differ only in the number of screened cores. Two, three or four EPR cores, each with its own braid screen, are laid up in contact, then bedded, armoured with galvanized steel and sheathed in chloroprene.
- Conductor: 4 mm² stranded tinned copper, 56 wires of 0.30 mm, IEC 60228 Class 5, 2.60 mm nominal diameter.
- Insulation: EPR, 1.0 mm thick on each core.
- Core screen: tinned copper and nylon braid over each insulated core; in parallel the screens measure 5.5, 3.9 and 2.8 Ω/km for Types 62, 63 and 64.
- Lay-up: the individually screened cores are laid up in contact with each other, so the screens touch along the length.
- Bedding: rubber-based bedding compound, 2.0 mm radial, giving an inner sheath diameter of 16.2 to 20.7 mm depending on type.
- Armour: galvanized steel pliable armour, 7/0.45 mm, which also provides a return path of 4.16 to 4.91 Ω/km.
- Outer sheath: heavy-duty chloroprene compound, 2.5 mm radial, for abrasion and moisture resistance.
FAQ
Selection questions
What are MGM 112 Type 62, 63 and 64, and how do they differ?
They are the small-section, individually screened, steel-armoured cables in the MGM 112 specification. The only difference between them is the core count: Type 62 has two cores, Type 63 three and Type 64 four, all 4 mm². Every core has its own tinned copper and nylon braid screen. The MGM 112 Type E2, E4 and E5 cables use the same armour and sheath but have no core screens, and the MGM 112 Type 201 and 211 cables carry the screened, armoured design up to 3×120 mm² for larger machines.
Which type should I choose for my circuit?
Count the insulated conductors the load needs. A two-wire auxiliary or control feed takes Type 62, a three-phase motor without neutral takes Type 63, and a circuit that needs a fourth insulated conductor takes Type 64. At 4 mm² all three are rated 28 A at 25 °C; if the load or run length is higher, check the voltage drop in the table or move to a larger MGM 112 size.
Which details are needed for a quotation?
Send the type (62, 63 or 64), the quantity in metres and the drum lengths, the supply voltage and load current, whether you need the standard galvanized steel armour, any sheath marking or colour requirement, and the mine authority whose approval or test report you need. Our engineers confirm the construction and return the datasheet with the quotation.
How does Type 63 compare with the MGM 115 Type 11 cable?
Both are 660/1100 V cables with braid-screened EPR cores and a chloroprene sheath. Type 63 is steel-armoured with three screened 4 mm² cores and is suited to cable laid along the roadway. MGM 115 Type 11 has three screened 16 mm² phase cores plus an unscreened 16 mm² pilot conductor and no armour, so it is the choice when the cable must follow a moving machine. Both are listed in the MGM mining cable category.
Request this cable.
Send the type (62, 63 or 64), metres and drum lengths, supply voltage and load current, armour requirement and the mine approval you need.
Quality Assurance
Testing at every stage in our own workshop and laboratory, from incoming copper to the packed drum.
Raw Material Inspection
Every batch of copper rod, rubber compound and reinforcing material is checked before it reaches the line.
- Copper: conductor resistance, elongation and surface condition on incoming rod and drawn wire
- EPR, CPE, PUR and silicone compounds: hardness, tensile strength, elongation and ageing samples from each mix
- Suppliers and batch numbers are recorded so every drum can be traced back to its materials
Manufacturing Process Control
Stranding, insulation extrusion, core assembly and sheathing run under recorded process parameters.
- Class 5/6 stranding with lay length and tension monitored for trailing and reeling flexibility
- Continuous-vulcanisation extrusion with wall thickness and spark tests logged on every length
- Operators sign off each stage before the cable moves to the next machine
Electrical Testing
Finished lengths go through the routine tests required by the referenced VDE, ICEA, IEC or NEK standard.
- Conductor resistance and insulation resistance on every length
- Voltage withstand (3.5 kV and higher) and partial-discharge measurement in the shielded HV laboratory
- Screen and pilot-core continuity checks for mining and reeling constructions
Mechanical and Ageing Tests
Samples from production are tested for the duty a mining, crane or submersible cable will actually see.
- Tensile strength and elongation of insulation and sheath before and after ageing
- Hot-set, ozone, oil-immersion and low-temperature bending tests
- Constant-temperature water bath for insulation resistance of submersible constructions
Flame Test and Final Inspection
Before packing, the cable is checked against the order and the flame-performance requirement of its standard.
- Single-cable vertical flame test to IEC 60332-1-2 where specified
- Metre marking, printing, drum length and appearance inspection
- Test report and packing list issued with every shipment
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Need Pricing for This Cable?
Tell us the length, cores, cross-section and delivery country and we will reply with a quotation and datasheet.