
All Mining Houses
Since 2005, Welkom Winder Services has manufactured and supplied Pin Gully Boxes for mining operations across multiple mining houses. Gully boxes are robust modular electrical enclosures used extensively within underground mining environments as part of electrical distribution and motor-control systems. Their modular configuration allows individual electrical units or motor starters to be incorporated into an expandable system, providing a practical platform for supplying and controlling underground equipment such as pumps, ventilation fans, drill rigs, lighting transformers and winches. The ongoing manufacture and supply of these systems demonstrates Welkom Winder Services' long-standing capability in rugged underground electrical distribution, modular motor control and mining-specific electrical equipment.
Underground electrical infrastructure must support a wide variety of equipment while remaining practical to install, maintain and adapt as operational requirements change. Conventional fixed electrical arrangements can become restrictive when additional motor starters or distribution functions are required. A modular gully-box architecture provides a more flexible approach by allowing electrical units to be configured as part of an expandable distribution and motor-control system. This modularity is particularly valuable in underground environments where electrical infrastructure may need to evolve alongside changing mining activities.
Manufactured and supplied modular Pin Gully Box systems providing a practical platform for underground electrical distribution and motor control, allowing individual units to be configured for different applications within an expandable system
Long-standing supply programme since 2005 serving multiple mining houses with modular underground electrical distribution and motor-control infrastructure
The continued manufacture and supply of Pin Gully Boxes across multiple mining houses since 2005 demonstrates Welkom Winder Services' established reputation as a trusted supplier of underground modular electrical distribution equipment. This sustained involvement across the mining industry reflects long-term client confidence in the quality, reliability and suitability of WWS-manufactured gully box systems for demanding underground applications.
A Pin Gully Box is a robust modular electrical enclosure used within underground mining environments for electrical distribution and motor-control applications. Gully-box systems can be configured with incoming electrical units and downstream starter or distribution modules to supply various types of underground equipment. Depending on the particular system design, applications can include pump starters, fan starters, winch starters, drill-rig supplies and lighting-transformer circuits. The modular design allows the electrical arrangement to be configured according to the operational requirements of the mine.





Allows electrical distribution and starter units to be configured according to application requirements.
Supports adaptable underground electrical infrastructure.
Suitable for various mining electrical and motor-control functions.
Provides a practical platform for supplying equipment closer to underground operating areas.
Developed for demanding underground electrical applications.
Ongoing manufacture and supply since 2005 demonstrates established WWS capability in this equipment category.
A key characteristic of gully-box systems is their modular construction. Individual electrical units or starters can be configured within a larger distribution arrangement, allowing the system to be adapted to different underground applications. Depending on the system configuration and operating requirements, modular architecture can simplify expansion, replacement and maintenance compared with completely fixed electrical installations.
Gully boxes can form part of a modular Motor Control Centre approach for underground mining applications. Instead of concentrating every motor-control function within one conventional large switchboard, modular units can provide distributed electrical control closer to the equipment being supplied. This makes gully-box systems particularly suited to underground applications where robust, configurable electrical infrastructure is required.
Including 525V mining applications.
Typical configuration ranges — final specifications depend on application.
Electrical control and distribution for underground pumping equipment.
Motor-control infrastructure for underground ventilation equipment.
Electrical supply and control arrangements supporting mining drilling equipment.
Distribution infrastructure for underground lighting systems.
Motor-control arrangements supporting underground winch applications.
Depending on the installation requirements, gully-box systems can be configured with left- or right-hand progression arrangements, providing additional flexibility when planning underground electrical layouts.
Welkom Winder Services has been involved in the manufacture and supply of Pin Gully Boxes for mining applications since 2005. The continued use of this equipment across mining operations demonstrates WWS’s long-standing experience in underground electrical distribution and modular motor-control infrastructure.