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Primary Contact
Mr. Ramiro I. Martínez Robles

Grupo Marro is a company based in Monterrey, Mexico with more than 30 years of experience in service, logistics, maintenance, and repair of electric motors and electromagnetic equipment (such as servomotors, pumps, transformers, etc.). Grupo Marro is dedicated to provide the best quality to its clients, the company motto is "Service based on trustworthiness".

- SKF Certified Rebuilder Electric Motors
- ISO 9001: 2015
- EASA Member
- MOBIUS Vibration Analyst Certification

Products and Services

Abelardo L. Rodriguez #1110 Col Niño Artillero CP 64280 Monterrey, RFC-GMM 980302MDA Mexico

Service Center Facilities and Equipment

The list below describes the size of the service center and the equipment this EASA member possesses.


Hazardous Area Repair Certifications & Quality Management

UL Certified Hazardous Location Repair
File #
CSA Certified Hazardous Location Repair
File #
IECEx Certified Hazardous Location Repair
IECEx Authorizing Agency:
File #
ISO 9001 Series Registration
Certificate # 9001: 2008

Work And Activities Performed By This Service Center

AC Electric Motor Rewinding or Rebuilding
A. Single-phase motors
B. Polyphase motors less than 50 hp (37 kW)
C. Polyphase motors up to 200 hp (150 kW)
D. Polyphase motors over 200 to 1000 hp (150 to 750 kW)
H. Polyphase motors with formed coils
J. Wound rotors
K. AC generator rewinding less than 50 kVA
L. AC generator rewinding 50 kVA and over
M. Brush shifting motors
Specialty Machine Rewinding or Rebuilding
A. Servo
B. Traction
D. Hoist
Mechanical Servicing
A. Dynamic balancing
B. General machine shop
C. Hermetic compressors
E. Pump repairing
F. Rotor rebarring
Field Service
C. Vibration analysis
D. Alignment
E. Laser alignment
F. Portable balancing
G. Thermography
DC Motor or Generator Rewinding or Rebuilding
A. DC motors or generators less than 10 kW
B. DC motors or generators 10 kW and over
C. Rotating fields less than 10 kW
D. Rotating fields 10 kW and over
E. Armature rewinding
F. DC welders-rotating
G. DC welders-static
Transformer Servicing
A. Air-cooled rebuilding
B. Air-cooled rewinding
C. Oil-filled rebuilding
D. Oil-filled rewinding
E. Welder transformer rewinding
F. Auto transformer rewinding
Electric/Electronic Control Servicing
A. Electromechanical preventives/predictive maintenance services
Electrical Apparatus Sales
A. Single-phase electric motors
B. Polyphase electric motors
F. Adjustable-speed drives
M. Pumps

Key Employees