dimako transformers pty

What dimako transformers pty does

Dimako Transformers (Pty) Ltd is a South African manufacturer of flameproof electrical equipment serving the mining industry, headquartered in Booysens, Gauteng. Founded in 1969 by Petros Dimakogiannis and formally registered in its current form in 1984, the company designs and builds custom power distribution equipment including flameproof transformers (up to 3,500kVA), MV and LV switchgear rated 3.3kV to 11kV, PowerCentres, LoadCentres, Ex Transformers, and dry type and oil cooled transformers. Its electronics division produces a proprietary range of microprocessor-controlled protection devices — microLOAD overload relays, PEFLO protection systems, microBAR bargraph meters, Earth Fault Lockout Relays, Current Transducers, and Neutral Earthing Resistor (NER) panels — certified to SANS 60079-11 intrinsic safety standards and manufactured under the SABS quality system with the SABS Quality Assurance Mark.

The company generates revenue through three streams: (1) hardware sales of custom-built power distribution equipment, (2) repair, installation, and commissioning services delivered 24-7-365 by an on-site and off-site field service team, and (3) training services covering flameproof enclosures, transformer testing, load/power centres, and switchgear. Pricing is quote-based and tied to customer specifications, with multi-year contracts in place. The company operates a direct enterprise field sales motion targeting South African mining operators via a team of named sales representatives, with WhatsApp and email as primary contact channels. Approximately 80% of manufacturing is performed in-house across electronics, transformer winding, steel fabrication, and wiring.

Dimako Transformers is privately held and wholly owned by Dimako Holdings, a Black-owned entity in which KDI Transformers holds 60%, the Industrial Development Corporation (IDC) of South Africa holds 25%, and Septagon Holdings holds 15%. The company has achieved a BBBEE Procurement Recognition Level of 100%, providing a commercial advantage in South African mining procurement. Leadership comprises Executive Chairman Kuseni Dlamini (former directorate-level experience at Anglo American, Old Mutual, and Massmart) and Managing Director Tony Sidnell (33 years at Dimako), supported by a deep bench of departmental managers with 15–33 years of company tenure.

Name

dimako transformers pty

Legal name

Dimako Transformers (Pty) Ltd

Website

https://dimakotransformers.com

Company type

Private

Founded year

1969

Operating status

Operating

Short description

Dimako Transformers is a South African manufacturer of flameproof transformers, switchgear, and proprietary electronic protection relays, serving the South African mining industry with custom-built power distribution equipment certified to SANS standards.

Ownership category

akta.pro rank

Product category

Mining Electrical Equipment / Industrial Power Distribution Equipment

NAICS

Power, Distribution, and Specialty Transformer Manufacturing (335311), Switchgear and Switchboard Apparatus Manufacturing (335313), Relay and Industrial Control Manufacturing (335314), Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515)

SIC

Power, Distribution & Specialty Transformers (3612), Switchgear & Switchboard Apparatus (3613), Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro industry

PRIMARYIMAGAAAA

Transformers (Power, Distribution, Instrument, Specialty)

Industrials, Manufacturing & Construction/Electrical Equipment & Industrial Electronics/Power Generation & Grid Equipment (Transformers, Switchgear, Substations)

SECONDARYIMAGAEAA

Low-Voltage Switchboards & Panelboards (LV distribution panels, MCCs, switchboards)

Industrials, Manufacturing & Construction/Electrical Equipment & Industrial Electronics/Electrical Distribution & Wiring Devices (Panels, Breakers, Cables, Connectors)

SECONDARYIMAGAEAB

Circuit Protection Devices (MCBs, MCCBs, ACBs, fuses, RCD/GFCI, surge protection)

Industrials, Manufacturing & Construction/Electrical Equipment & Industrial Electronics/Electrical Distribution & Wiring Devices (Panels, Breakers, Cables, Connectors)

SECONDARYIMAGAEAJ

Grounding, Bonding & Lightning Protection (grounding bars, clamps, earthing systems, lightning arrestors)

Industrials, Manufacturing & Construction/Electrical Equipment & Industrial Electronics/Electrical Distribution & Wiring Devices (Panels, Breakers, Cables, Connectors)

SECONDARYHDACAJAG

Power Quality, Metering & Monitoring

Hardware, Technology & Telecom/Computing Hardware & Peripherals/Computer Power & Protection (UPS, Surge Protection)

SECONDARYEUAEAFAA

High-Voltage Electrical Systems (Switchgear, Transformers, Protection & Control)

Energy, Utilities & Environment/Energy Infrastructure & Services (EPC, O&M, Field Services)/Mechanical, Electrical & Plumbing (MEP) for Energy Facilities

Keywords

• Flameproof mining equipment
• MV switchgear manufacturing
• Power distribution transformers
• Mining electrical protection
• Intrinsically safe equipment

Headquarters

HQ city

Booysens

HQ country

South Africa

HQ region

Africa

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Electrical Equipment Manufacturing: Design, manufacture, and sale of custom built power distribution equipment including flameproof transformers, switchgear, load centres, power centres, and electronic protection relays for the mining industry.
2. Repair and Installation Services: On-site and off-site service team providing consulting, problem solving, fault finding, training, auditing, installations, and commissioning services available 24-7-365.
3. Training Services: In-house and on-site training courses on equipment manufactured or utilized by Dimako, including flameproof MV/LV enclosures, transformer testing, load/power centres, ring main units and switchgear, and NERM panels.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Dimako Transformers designs, manufactures and sells custom-built, flameproof and intrinsically safe electrical equipment for the South African mining industry. Its core product range covers medium and low voltage switchgear (3.3kV–11kV), flameproof and explosion-proof transformers (Ex, Dry Type, Oil Cooled), combined PowerCentres and LoadCentres, Mobile Switch Units and Neutral Earthing Resistor (NER) panels, complemented by a proprietary suite of microprocessor-based electronic protection relays (microLOAD, PEFLO, microBAR, Earth Fault Lockout, Pilot Relays). Equipment is certified to SANS 60079-11 for intrinsic safety and carries the SABS Quality Assurance Mark, with 80% of manufacturing performed in-house.

Product overview

Dimako Transformers is a South African manufacturer of specialized electrical equipment for the mining industry, founded in 1969. The product portfolio centers on flameproof transformers and switchgear for hazardous underground mining environments, complemented by a comprehensive range of electronic protection relays and components. Core products include Flameproof MV Switchgear (3.3kV-11kV), Flameproof LV Switchgear, PowerCentres (combining transformer and switchgear), LoadCentres (supply cable with multi-circuit switchgear), Ex Transformers, Dry Type Transformers, and Oil Cooled Transformers. The electronic components division produces protection relays including PEFLO (microprocessor-controlled protection system), microLOAD (overload relay), microBAR (bargraph monitoring meter), Earth Fault Lockout Relays, Diode Interlock Relays, Current Transducers, Adjustable Earth Leakage Units, Pilot Relays (P130 series), and various safety devices like Live Line Indicators and Self Powered Flagging Lights. The company offers 80% in-house manufacturing with design, manufacturing, repair, and installation services, along with on-site training capabilities.

Differentiator

Problem solved

Functional benefit

Products and services

• Flameproof MV Switchgear Medium voltage flameproof switchgear rated from 3.3kV to 11kV and 200 to 630Amps for South African underground and surface mining operations. Includes on-load isolators (air and SF6), SF6 circuit breaker and isolator combinations, and vacuum circuit breakers and isolators, with RS232 communication, nuisance-free sensitive earth fault protection down to 500mA, phase-sensitive short circuit protection, and redundant indication with large viewing windows. Designed for free-standing or transformer-mounted configurations and capable of being concatenated into multi-outlet distribution centres. Carries the SABS Quality Assurance Mark.
• Flameproof LV Switchgear Low voltage flameproof switchgear designed for underground mining applications, providing multi-way switching capabilities within robust flameproof enclosures for hazardous mining environments.
• LoadCentres Combined flameproof LoadCentre units consisting of supply cable and multi-circuit switchgear. Features microprocessor control with PEFLO controlled relay and microLOAD overload relay for user-friendly, reliable operation with superior control parameters. Available from single-way to multi-way configurations for mining power distribution.
• PowerCentres Integrated PowerCentre units combining primary switchgear, transformer and secondary switchgear. Manufactures flameproof transformers up to 3,500kVA. Available skid-mounted or trailer-mounted, in single core to dual core configurations with various MV and LV switchgear combinations.
• Ex Transformers Explosion-proof (Ex) transformers for hazardous mining environments. Available in various kVA ratings including 5kVA, 25kVA and 50kVA models with Zone II certification.
• Dry Type Transformers Dry type transformers designed for mining applications, available up to 1,250kVA ratings, including flameproof sealed dry type transformers for various voltage configurations.
• Oil Cooled Transformers Oil cooled transformers for mining applications, including welding transformers and pole mounted units ranging from 15kVA to 75kVA.
• Mobile Switch Units Flameproof and non-flameproof 6.6KV/11KV mining switchgear designed for the coal mining industry. Accommodates hazardous environments, rough handling, dust, water, and vibration. Includes programmable overloads, short circuit relays, earth leakage relays, and earth continuity monitors.
• Neutral Earthing Resistor (NER) Panels Neutral earthing protection system for transformer secondaries designed to reduce phase to earth fault magnitude on system voltages from 380VAC to 6.6kV. Features universal panel circuitry with interlocking facilities, real-time neutral earth resistance indication, neutral current display, and predetermined trip levels for protection or alarm.
• microLOAD Overload Relay Proprietary phase-sensitive overload relay meeting worldwide standards. Short circuit protection settable as low as 150% of full load rating while accommodating higher inductive start-up currents. Features programmable thermal cool down times, overload trip curves, current imbalance selection, auto/manual reset, and a colour-coded bar-graph display. Overload range 4–650 Amps.
• PEFLO Protection System Proprietary microprocessor-controlled compact electrical protection system providing pilot, earth fault, earth fault lockout, frozen contact protection and auto configuration for short circuit trip. Certified to SANS 60079-11 intrinsically safe requirements. Fail-safe design for systems up to 3.3KV.
• microBAR Meter/Relay Proprietary microprocessor-controlled 50-element colour-coded bar-graph meter for indication, alarm and trip on parameters including volts, current, ohms, megohms, earth leakage, pressure, temperature. Two independent user-programmable action levels (alarm and trip) with time-delayed function and password protection.
• Repair, Installation, Commissioning and Field Services On-site and off-site service team providing consulting, problem solving, fault finding, training, auditing, installations, and commissioning services for Dimako and related mining electrical equipment, available 24 hours a day, 7 days a week, 365 days a year.
• Training Services In-house and on-site training courses covering equipment manufactured or utilized by Dimako, including flameproof MV/LV enclosures, transformer testing, load/power centres, ring main units and switchgear, and NERM panels.

Quantifiable outcome

• Sensitive earth fault protection down to 500mA
• +2 more outcomes

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• Kuseni Dlamini Foundation (KDF)minorStrategic or Co-development Partner · 10 February 2023Dimako partnered with the Kuseni Dlamini Foundation for community support, participating in donations to families in Soweto raising children with disabilities. Dimako allocated grocery items for three months to two families, with team members assisting in shopping and delivery.

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Market position

Strengths5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about dimako transformers pty