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| power Tool Motors |
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Power Tool Motors |
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Induction Motors
- AC Mains Powered |
Universal Brushed Motors
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AC Mains Powered |
| Tests Perfomed: |
Tests Performed: |
- Motor Performance
- Temperature Rise by Resistance
- Heat Transfer or Stepped Heat Rise
- Curve Test
- Overload to Trip Test
- Life Cycle/Durability
- Input and Curent
- Coast Down Test
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- Motor Performance
- Temperature Rise by Resistance
- Heat Transfer or Stepped Heat Rise
- Curve Test
- Overload to Trip Test
- Life Cycle/Durability
- Input and Curent
- Coast Down Test
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| Sample Test System |
Sample Test System |
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Permanent Magnet DC (PMDC)
-Primarily Battery Powered |
Brushless DC (BLDC)
-Primarily Battery Powered |
| Tests Performed: |
Tests Performed: |
- Motor Performance
- Heat Transfer or Stepped Heat Rise
- Life Cycle/Durability
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- Motor Performance
- Ramp Test (only if motor is torque feedback)
- Step Test
- Heat Transfer or Stepped Heat Rise
- Life Cycle/Durability
- Temperature Rise by Resistance
- Back EMF Measurements
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| Sample Test System |
Sample Test System |
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| Equipment suggestions based on
test type: |
Motor Performance
• Dynamometer
• Dynamometer Controller
• Power analyzer
• Motor Mounting Fixture
• Motor Testing Software |
Temperature Rise by Resistance
• Dynamometer
• Dynamometer Controller
• Power Analyzer
• Motor Mounting Fixture
• Thermaocouple Module
• 4 wire Resistance Meter
• Motor Testing Software |
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Heat Transfer or Stepped Heat Rise
• Dynamometer
• Dynamometer Controller
• Power Analyzer
• Motor Mounting Fixture
• Thermaocouple Module
• Motor Testing Software |
Life Cycle/Durability
• Multi Station Durability System
• Hysteresis Brake or Hysteresis Dynamometer |
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Input and Current
• Dynamometer Controller
• Power Analyzer
• Free Run Speed Sensor (for measuring rpm)
• Motor Testing Software |
Coast Down Test
• Dynamometer Controller
• High Resolution Encoder (at least 600 PPR quadrature)
• Motor Testing Software |
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Dynamometer suggestions based on product type: |
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| Product Type |
Dynamometer Specifications |
| Laminate Trimmers, Dremel Tools, Plam Sanders, Random Orbit Sanders, Vacuum Cleaner Motors |
10-240 Oz·in / 70-170 mN·m
Max. Speed 25,000 to 50,000 RPM |
| Small Angle Grinders, Routers, Belt Sanders, Light Duty Screwdrivers and Drills, Smaller Hobbyist Trim Saws or Hand Held Tile Saws, Planers, Jig-Saws |
240-440 Oz·in / 1.7-3.1 N·m
Max. Speed 25,000 to 50,000 RPM |
| Large Angle Grinders, Cordless Drills, Circular and Miter Saws, Table Saws, Compressors |
125-250 lb·in / 14-28 N·m
Max. Speed 12,000 to 30,000 RPM |
| Low RPM / High Torque Drills, Stationary Drill Press Motors |
440-880 lb·in / 50-100 N·m
Max. Speed 3,000 to 8,000 RPM |
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Temperature Rise by Resistance - Testing mostly performed on AC mains powered motor driven products used for determining the motor winding core temperature rise under a torque load that is proportional to the nameplate current rating of the product.
Life Cycle / Durability - Testing intended to be representative of normal (sometime excessive) operation for use in determining the life expectancy of a product.
Life Cycle / Durability - Testing intended to be representative of normal (sometime excessive) operation for use in determining the life expectancy of a product.
Heat Transfer or Stepped Heat Rise - A test designed to push a motor through progressive loading (typically quantified in amps) until thermal degradation or destruction.
Heat Transfer or Stepped Heat Rise - A test designed to push a motor through progressive loading (typically quantified in amps) until thermal degradation or destruction.
Motor Performance; generic term applied for when parametric motor performance is desired. Data measured and/or calculated during these tests are typically; Torque, Speed (RPM), Mechanical Power (Watts-out), Amperage, Voltage, Electrical Power (Watts-in), Power Factor (P.F.), Efficiency.
Motor Performance; generic term applied for when parametric motor performance is desired. Data measured and/or calculated during these tests are typically; Torque, Speed (RPM), Mechanical Power (Watts-out), Amperage, Voltage, Electrical Power (Watts-in), Power Factor (P.F.), Efficiency.
Coast Down Test (primarily used for circular saw types) – Also a compliance type test that is used to endure products with rotating blades that are equipped with electric or mechanical brakes cease rotation within a specified amount of time after the power switch is opened.
Coast Down Test (primarily used for circular saw types) – Also a compliance type test that is used to endure products with rotating blades that are equipped with electric or mechanical brakes cease rotation within a specified amount of time after the power switch is opened.
Input and Current – Primarily a compliance test used to ensure that unloaded operational speed (with accessory installed) and input current are within an acceptable tolerance of regulatory mandates.
Input and Current – Primarily a compliance test used to ensure that unloaded operational speed (with accessory installed) and input current are within an acceptable tolerance of regulatory mandates.
Life Cycle / Durability - Testing intended to be representative of normal (sometime excessive) operation for use in determining the life expectancy of a product.
Life Cycle / Durability - Testing intended to be representative of normal (sometime excessive) operation for use in determining the life expectancy of a product.
Heat Transfer or Stepped Heat Rise - A test designed to push a motor through progressive loading (typically quantified in amps) until thermal degradation or destruction.
Heat Transfer or Stepped Heat Rise - A test designed to push a motor through progressive loading (typically quantified in amps) until thermal degradation or destruction.
Temperature Rise by Resistance - Testing mostly performed on AC mains powered motor driven products used for determining the motor winding core temperature rise under a torque load that is proportional to the nameplate current rating of the product.
Temperature Rise by Resistance - Testing mostly performed on AC mains powered motor driven products used for determining the motor winding core temperature rise under a torque load that is proportional to the nameplate current rating of the product.
Motor Performance; generic term applied for when parametric motor performance is desired. Data measured and/or calculated during these tests are typically; Torque, Speed (RPM), Mechanical Power (Watts-out), Amperage, Voltage, Electrical Power (Watts-in), Power Factor (P.F.), Efficiency.
Motor Performance; generic term applied for when parametric motor performance is desired. Data measured and/or calculated during these tests are typically; Torque, Speed (RPM), Mechanical Power (Watts-out), Amperage, Voltage, Electrical Power (Watts-in), Power Factor (P.F.), Efficiency.
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