Full-Scope Electric Motor Repair and Rewinding
With years of experience, our technicians are skilled in the diagnosis, repair, and rebuilding of both AC and DC electric motors, from fractional horsepower units to large motors over 50,000 horsepower. Our services include rewinding, bearing replacement, motor reconditioning, dynamic balancing, and more. We can repair motors from any manufacturer, ensuring they operate to – or beyond – OEM specifications.
Our state-of-the-art repair facility is equipped with the latest technology, allowing us to test, diagnose, and repair even the most complex motor issues efficiently. We provide all services in-house, from machine work to coil rewinding, giving our clients the benefit of reduced lead times and increased accountability.
Our Electric Motor Repair Services Include:
Electric Motor Rewinding
We specialize in rewinding both AC and DC motors, restoring them to their original specifications or better. Using precision winding techniques and high-quality materials, we ensure your motor’s performance meets industry standards.
Bearing Replacement
Bearing failure is one of the most common issues in electric motors. We replace worn or damaged bearings with high-precision components, ensuring smooth operation and reducing vibration.
Dynamic Balancing
Proper balance is essential for reducing wear on motor components and preventing premature failure. We use computerized dynamic balancing equipment to correct imbalances, ensuring your motor operates smoothly at any speed.
Vacuum Pressure Impregnation (VPI)
Our VPI system enhances the durability of your motor windings by applying a catalyzed epoxy resin that protects against harsh environments, moisture, and chemical exposure.
Testing and Diagnostics
We use advanced testing equipment to evaluate your motor’s performance, including high-voltage testing, surge comparison testing, vibration analysis, and more. Every motor undergoes comprehensive testing before and after repairs to ensure it operates at peak performance.
Rewinding for AC and DC Motors
Rewinding is a critical service for restoring the performance of worn or damaged electric motors. At PDS Balancing, we rewind motors of all sizes and specifications, using high-quality copper wire and insulation materials to ensure durability and efficiency. Our technicians carefully strip the old windings, record the wire size, span, turns, and grouping, then rewind the motor with precision. Whether it’s a simple motor or a highly complex unit, we ensure that every coil is rewound to exact specifications.
Our Rewinding Process Includes:
- Removal of old windings with precision and careÂ
- Detailed measurement and documentation of original specificationsÂ
- Use of high-quality VFD-rated magnet wire for modern industrial demands
- Application of H-class insulation for increased durability and temperature resistance
- Final testing to ensure windings meet or exceed original specifications
Bearing Replacement and Motor Reconditioning
Bearings play a crucial role in motor function, supporting rotating components and reducing friction. Over time, bearings can wear down due to factors such as corrosion, inadequate lubrication, and excessive loads. Our technicians replace bearings with precision-fit, high-quality components, restoring your motor to its optimal operating condition. In addition to bearing replacement, we offer full motor reconditioning services, including shaft repairs, rotor balancing, and reassembly.
Dynamic Balancing for Optimal Performance
Dynamic balancing is essential for reducing vibration, noise, and wear in rotating machinery. An unbalanced rotor or other rotating component can cause excessive wear on bearings, seals, and other motor parts, leading to premature failure. Our dynamic balancing services ensure that your motor operates smoothly, even at high speeds, by correcting any imbalances and aligning the motor’s center of mass with its rotational axis.
Dynamic Balancing Benefits:
- Reduces vibration and noise
- Extends the life of bearings and seals
- Prevents overheating and improves overall motor performance
- Enhances safety and operational efficiency
Vacuum Pressure Impregnation (VPI) for Motor Winding Protection
Our VPI system offers superior protection for electric motor windings, helping your motors withstand extreme conditions, including exposure to chemicals, moisture, and high temperatures. This process involves placing the motor windings in a vacuum chamber and impregnating them with a catalyzed epoxy resin. Once cured, the resin forms a protective barrier that extends the life of the motor and reduces the likelihood of breakdowns in harsh operating environments.
VPI Advantages:
- Protects windings from chemical and environmental damage
- Enhances insulation and prolongs motor life environmental damage
- Reduces downtime by increasing motor reliability
Comprehensive Testing and Diagnostics
Testing and diagnostics are integral to our repair process. We conduct thorough evaluations of every motor that comes into our shop, using advanced equipment to measure performance and identify potential issues. Our testing capabilities include:
High-Voltage Testing: We test motors under real-world operating conditions to ensure they meet performance standards.
Vibration Analysis: Detects early signs of mechanical failure, such as unbalance, misalignment, or bearing wear.
Surge Comparison Testing: Identifies insulation weaknesses that could lead to future failures.
Dynamic Load Testing: We use dynamometers to test motors under load, ensuring they perform optimally before returning to service.
