HMTD

What HMTD does

HMTD Engineering Pvt. Ltd, incorporated in 1981, is an Indian private limited company headquartered at D-4, MIDC Taloja, Navi Mumbai, Maharashtra, operating a CNC-equipped manufacturing facility certified to ISO-9001:2015. The company designs, develops, and manufactures permanent magnet (PM) brushless alternators, BLDC motors (axial and radial flux), and associated electronic control equipment, with power ratings spanning 1kW to 1000kW. Core technology centers on NdFeB permanent magnet machines with CRNGO low-loss stator laminations, IGBT-based PWM electronic regulation, and microcontroller-controlled fault detection and data logging. Notable proprietary products include 30kW PM alternators for RDSO-specified LHB railway coaches (achieved weight reduction to under 180kg from conventional 550kg at >92% efficiency), inductor-type brushless alternators in 4.5kW and 25kW ratings, electronic rectifier-regulator units (ERRU), magnetic amplifier-based RRUs, and thyristor-switched power factor correction equipment for traction substations and electricity boards.

The company serves primarily Indian Railways, railway traction substations, and electricity boards through direct enterprise sales, with additional offerings in low-head small hydropower (10kW-1000kW), wind turbine alternators, and via European technical partnerships, electric vehicle and hybrid bus BLDC/PMSM motors. Revenue is generated through hardware sales of electrical machines and complementary after-sales services comprising warranty, Comprehensive Annual Maintenance Contracts (CAMC), and chargeable maintenance via a dedicated service request system. Strategic alliances include AXCO Motors Finland for PM motor/generator technology, European firms for EV motor designs, and tie-ups with Indian and East European turbine manufacturers for integrated hydro power solutions. Sister companies extend the group's reach into power transformers, distribution transformers, and lamination punching for transformer manufacturers.

Name

HMTD

Legal name

HMTD Engineering Pvt. Ltd

Website

https://hmtd.in

Company type

Private

Founded year

1981

Operating status

Operating

Headcount range

1–10 employees

Short description

HMTD Engineering Pvt. Ltd, founded 1981 in Navi Mumbai, designs and manufactures permanent magnet brushless alternators, BLDC motors, and electronic regulators (1kW-1000kW) for Indian Railways, electricity boards, traction substations, renewable energy, and EV applications.

Ownership category

akta.pro rank

Product category

Electrical Machines & Power Electronics

NAICS

Mechanical Power Transmission Equipment Manufacturing (333613), Relay and Industrial Control Manufacturing (335314)

SIC

Motors & Generators (3621), Switchgear & Switchboard Apparatus (3613)

akta.pro industry

PRIMARYIMAGACAB

DC Motors (Brushed, Brushless DC)

Industrials, Manufacturing & Construction/Electrical Equipment & Industrial Electronics/Motors, Drives & Motion Control (Motors, VFDs, Servos)

SECONDARYIMAHAHAK

Industrial Control Cabinets & Power Distribution (Panels, Switchgear for Automation)

Industrials, Manufacturing & Construction/Industrial Machinery & Heavy Equipment/Industrial Automation & Robotics Equipment

SECONDARYIMAHAFAJ

Prime Mover Components & Auxiliary Systems (Controls, Excitation, Lubrication, Cooling, Intake/Exhaust)

Industrials, Manufacturing & Construction/Industrial Machinery & Heavy Equipment/Power Generation & Prime Movers

Keywords

• Permanent magnet alternators
• Brushless electrical machines
• BLDC motor manufacturing
• Power factor correction
• Railway electrical equipment

Headquarters

HQ city

Navi Mumbai

HQ country

India

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Electrical Machines Sales: Sale of permanent magnet brushless alternators, BLDC motors, regulators (RRU/ERRU), and power factor correction equipment. Products range from 1kW to 1000kW capacity. Both one-time hardware sales and after-sales service/support.
2. After-Sales Service and Support: Warranty, CAMC (Comprehensive Annual Maintenance Contract), and chargeable maintenance services for electrical equipment. Service request system with complaint tracking.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

HMTD Engineering designs, develops, and manufactures permanent magnet brushless alternators (4.5kW, 25kW, and 30kW with controller), BLDC motors (axial and radial flux, 1kW–1000kW), and associated regulator and control equipment (RRU and ERRU) for railway coaches. It also supplies thyristor-switched power factor correction equipment for railway traction substations and electricity boards, plus PM alternator systems for low-head hydro and wind energy applications. Operations are supported by an ISO-9001:2015 certified CNC manufacturing facility in Taloja, Navi Mumbai, and a technical partnership with AXCO MOTORS of Finland.

Product overview

HMTD Engineering Pvt. Ltd is a manufacturer of electrical machines and power electronics, offering a portfolio of permanent magnet brushless alternators (4.5KW and 25KW), PM alternators (30KW with integrated controller), BLDC motors (axial and radial flux, 1-1000KW range), and associated control equipment. The core product family consists of alternators paired with complementary regulators (RRU and ERRU types) that provide voltage/current regulation, over-voltage protection, and data logging capabilities. The company also supplies thyristor-switched power factor correction equipment for electricity board and traction substations, and renewable energy products including hydro power systems (10-1000KW for low-head applications) and wind mill applications. Products are designed primarily for railway coaches, industrial applications, defense, and renewable energy sectors, with manufacturing facilities in Taloja, Navi Mumbai certified to ISO-9001:2015.

Differentiator

Problem solved

Functional benefit

Products and services

• Brushless Alternator 25kW Inductor-type brushless alternator for AC railway coaches, rated at 25 kW with 130V DC output (193A continuous / 212A one-hour duty), operating at 400 cut-in to 2400 RPM maximum with double-ended V-belt drive. Built with cogged rotor assembly skewed to vary permeance and reluctance in the air gap.
• Brushless Alternator 4.5kW Inductor-type brushless alternator for non-AC railway coaches, rated at 4.5 kW with 130V DC output (38.5A continuous duty), operating at 350 cut-in to 2400 RPM maximum with single-ended V-belt drive.
• PM Alternator 30kW with Controller Permanent magnet alternator designed for LHB railway coaches per RDSO specifications, rated 30kW with integrated 650 Amp Hour battery charger. Uses NdFeB permanent magnets and CRNGO low-loss stator stampings; weighs under 180kg versus 550kg conventional. PWM control via IGBTs delivers efficiency above 92% and power factor above 0.95; bogie-mounted with V-belt drive.
• Rectifier Cum Regulator Unit (RRU) 25kW Magnetic Amplifier type regulator for 25kW alternator with adjustable output voltage 125–130V DC and current 180–212 Amps. Features overcurrent protection and electronic over-voltage protection.
• Rectifier Cum Regulator Unit (RRU) 4.5kW Magnetic Amplifier type regulator for 4.5kW alternator with adjustable output voltage 120–130V DC and current 35–40 Amps. Features overcurrent and electronic over-voltage protection.
• Electronic Rectifier Cum Regulator Unit (ERRU) 25kW IGBT-based electronic control regulator for 25kW alternator with PWM control, output voltage 125–130V DC, current 180–212 Amps. Features Coach Indication Panel (CIP) for monitoring both ERRUs, one-week data storage, fault detection, and emergency fail-safe circuit.
• Electronic Rectifier Cum Regulator Unit (ERRU) 4.5kW IGBT-based electronic control regulator for 4.5kW alternator with PWM control, output voltage 120–130V DC in 0.5V steps, current 38–45 Amps. Features data logging, fault detection, and emergency fail-safe circuit.
• BLDC Motor Axle Flux 1kW to 1000kW with Controller Axle flux BLDC motor new to India, rated 1kW to 1000kW, lightweight with compact form factor. Uses low-loss Cobalt Iron stampings with high magnetic induction, and special toroidal core stampings up to 1 meter diameter. Targeted at defence applications, wind turbines (with controller and grid synchronization to overhead main line), and other high-power applications.
• BLDC Motor Radial Flux 1kW to 500kW with Controller Radial flux BLDC motor available in air-cooled or water-cooled designs, rated 1kW to 500kW. Uses NdFeB magnets with low-loss stampings for high efficiency and lightweight construction. Suitable for industry, railway, defence, small hydro, and transport applications.
• Power Factor Correction Equipment for Electricity Board Thyristor-switched power factor correction equipment for electricity board applications to improve power factor at the utility side and reduce system losses. Custom-designed cubicles tailored to customer requirements.
• Power Factor Correction Equipment for Traction Application Thyristor-switched power factor correction equipment for railway traction substations to improve power factor at the utility side and reduce system losses. Custom-designed cubicles tailored to specific substation requirements.
• Hydro Power Low Head Application 10kW to 1000kW Permanent magnet alternator system for low-head hydropower (2–10 meters water head), rated 10kW to 1000kW. Delivers full power at low speed without a gearbox, is oil-free, and can be submerged or externally mounted with a special turbine. Grid-connected directly or via frequency controller.
• Wind Mill Application PM alternator systems for wind turbine applications with controller, capable of power synchronization with overhead main lines at higher voltages. Developed in association with AXCO MOTORS Finland for PM motors and generators.
• After-Sales Service and Maintenance (Warranty & CAMC) Warranty service, Comprehensive Annual Maintenance Contracts (CAMC), and chargeable maintenance for HMTD's alternators, regulators, motors, and power factor correction equipment, supported by an online service request system with complaint tracking and dedicated sales & service mobile/email contacts.

Quantifiable outcome

• 30kW PM alternator weight reduced to less than 180kg from conventional 550kg
• +3 more outcomes

Named customers3 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature12 records

Partnerships

Six partnerships are on record, tiered core and minor.

• AXCO MOTORS, FINLANDcoreStrategic or Co-development PartnerManufacturing partnership for PM motors and generators for Small Hydro, Wind, Tidal applications and special purpose electrical machines and controls for exports. AXCO provides design and technical evaluation support for completing projects in short time.
• Indian Turbine ManufacturerscoreStrategic or Co-development PartnerAssociation for complete hydro power solutions including design, analysis, manufacture of PM alternators, controls, and turbine supply.
• East European Turbine ManufacturerscoreStrategic or Co-development PartnerPartnership for efficient turbines for hydro power applications with European design expertise.
• European Companies (BLDC, PMSM, PMSL)coreTechnology or IntegrationTechnical tie-up for special designs of BLDC, PMSM and PMSL water cooled, high efficient motors and controllers for electric vehicles and electric/hybrid buses.
• Sister Companies - Power Transformers & Distribution TransformersminorStrategic or Co-development PartnerSister companies manufacture Power Transformers and Distribution Transformers for effective grid connections of hydro power plants.
• Sister Companies - Lamination Punching FacilitiesminorStrategic or Co-development PartnerSister companies provide punching facilities of laminations for Transformer Manufacturers.

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• ABB India: Subsidiary of ABB supplying motors, drives, power factor correction equipment, and power electronics to Indian industries and railways. Comparable in PFC and motor/driver products where HMTD also competes, though as a much larger multinational.
• Siemens India: Indian arm of Siemens AG manufacturing motors, drives, traction components, and power factor correction systems. Directly comparable in railway and industrial electrical equipment, including PFC for traction substations.
• Bharat Heavy Electricals (BHEL): India's largest heavy electrical equipment manufacturer, supplying Indian Railways, power utilities, and industrial customers with motors, alternators, and power electronics. Overlaps with HMTD on railway alternators and PFC equipment but at vastly larger scale and broader portfolio.

Emerging players

• Medha Servo Drives: Indian manufacturer of traction electronics, railway onboard systems, and power electronics. Comparable as a growing Indian supplier of railway-grade electrical and electronic equipment, with overlapping RDSO-specified product categories.
• Nidec India: Indian presence of global motor manufacturer Nidec, focused on BLDC and high-efficiency motors for industrial, appliance, and EV applications. Comparable in BLDC motor technology and product overlap with HMTD's motor line.

Direct peers

• Bharat Bijlee: Mumbai-based manufacturer of motors, transformers, and power systems serving industrial and infrastructure customers. Comparable in product overlap (motors and electrical equipment) and Indian market focus, with larger scale than HMTD.
• TD Power Systems: Bangalore-based manufacturer of AC generators, alternators, and power generation equipment up to multi-MW range. Directly comparable in industrial alternators and power generation equipment, with broader power range coverage.
• Kirloskar Electric: Indian manufacturer of electrical machines including AC/DC motors, alternators, and power electronics. Directly comparable as a domestic competitor to HMTD in industrial alternators, motors, and railway-adjacent electrical equipment.
• Bonfiglioli (India): Italian-headquartered manufacturer of gearmotors, drives, and BLDC/PMSM motors with Indian operations. Comparable in industrial motor and drive product lines, especially in high-efficiency and EV-adjacent applications.
• Crompton Greaves Consumer Electricals / CG Power: Indian manufacturer of motors, generators, transformers, and power conversion equipment with deep railway and industrial exposure. Direct peer in the alternators, motors, and railway electrical equipment space.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/hmtd

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

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 HMTD