POWDER BRAKE DYNAMOMETERS Magtrol offers 3 types of dynamometer brakes to absorb load: Hysteresis (HD Series), Eddy-Current (WB Series) and Magnetic Powder (PB Series). Each type of Dynamometer has advantages and limitations and choosing the correct one will depend largely on the type of testing to be performed. With over 50 standard models to choose from, Magtrol Sales professionals are readily available to assist in selecting the proper Dynamometer to meet your testing needs. FEATURES ▪ 12 Models with Maximum Torque 600 mN·m ... 1 200 N·m (84 oz·in ... 885 lb·ft) ▪ Braking Power: 150 W ... 48 kW ▪ Stable Braking Torque ▪ Low Moment of Inertia ▪ Operation in Either Rotational Direction ▪ Braking Torque Measurement Integrated ▪ Integrated Optical Speed Sensor ▪ Special designs available upon request Fig. 1: 1 PB 115 | Eddy-Current Dynamometer Powder Brake Dynamometers (PB  Series) are ideal for applications operating in the low to middle speed range or when operating in the middle to high torque range. Powder Brakes provide full torque at zero speed and are water-cooled, allowing for power ratings up to 48  kW. PB Series Powder Dynamometers integrate a torque measuring system with an accuracy ratings ± 0.3 % ... ±  % full scale, depending on 0.5  size and system configuration. Mounted on test benches, the PB Series Powder Dynamometers allow performance and reliability testing on driving elements such as servomotors, geared motor, gearbox, windshield wiper motor, starter motor, fans, drills, hydraulic transmission systems and motors for domestic appliances. POWDER DYNAMOMETER OPERATING PRINCIPLES The PB Series - Powder Dynamometers contain, as their name suggests, a magnetic powder. The electrical current passing through the coil generates a magnetic field, which changes the property of the powder, thus producing a smooth braking torque through friction between rotor and stator. The Powder Dynamometers (PB) produce their rated torque at zero speed. The element to be tested can be loaded at standstill to determine the starting torque. OPTICAL SPEED SENSOR Each PB Series Dynamometer has an optical speed sensor delivered as standard. PB 2.7 & PB 43 has an optical speed sensor with a 30 PPR (Pulses Per Revolution); PB 65, PB 115 & PB 15 has an optical speed sensor with a 60 PPR. For higher speed resolution in low speed applications, Magtrol offers a 600 PPR or 6 000 PPR encoder as an option. © 2022 MAGTROL | Due to continual product development, Magtrol reserve

PB SERIES DYNAMOMETER CONFIGURATIONS The Dynamometers can be complemented by various electronic modules such as the DES Series (Power Supply), TSC 401 (Torque/Speed Conditioner) and DSP  7000 (High Speed Programmable Dynamometer Controller). accurate torque and speed measurement. For a dynamic, high-precision system, the torque transducer can be mounted in line between the unit under test and the dynamometer, providing a torque accuracy of 0.1 %. Magtrol also offers In-Line Torque Transducers (TS Series or TM Series) or Torque Flange (TF Series) for extremely TS / TM / TF Series Torque Sensor...

PB SERIES PB 2.7 TORQUE-SPEED-POWER CURVES 2 390 rpm Torque [mN∙m] © 2022 MAGTROL | Due to continual product development, Magtrol reserves the right to modify specifications without forewarning.

PB SERIES PB 115 TORQUE-SPEED-POWER CURVES 480 rpm 4 PB 15 - Power 2 PB 15 - Power 4 PB 15 - Torque © 2022 MAGTROL | Due to continual product development, Magtrol reserves the right to modify specifications without forewarning.

PB SERIES PB 2.7 DIMENSIONS T (removable calibration arms) Cooling water connection ø6 mm b) CAUTION: All PB Series Dynamometers must be water cooled. NOTE: Original dimensions are in metric units. Dimensions converted to Emgéish units have been rounded up to 4 decimal places. a) For calibration in N·m with weight in kg NOTE: 3D STEP files of most of our products are available on our website: www.magtrol.com ; other files are available on request. © 2022 MAGTROL | Due to continual product development, Magtrol reserves the right to modify specifications wit

PB SERIES PB 43 DIMENSIONS T (removable calibration arms) Reference surfaces Cooling water connection ø10 mm CAUTION: All PB Series Dynamometers must be water cooled. NOTE: Original dimensions are in Metric units. Dimensions converted to English units have been rounded up to 4 decimal places. a) 255 mm for a calibration in N·m with weight in kg (use outer groove); 250 mm for calibration in N·m with weight in N (use inner groove) NOTE: 3D STEP files of most of our products are available on our website: www.magtrol.com ; other files are available on request. © 2022 MAGTROL | Due to continual product...

T (removable calibration arms) Reference surfaces Cooling water connection ø10 mm CAUTION: All PB Series Dynamometers must be water cooled. NOTE: Original dimensions are in metric units. Dimensions converted to English units have been rounded up to 4 decimal places. a) 510 mm for a calibration in N·m with weight in kg (use outer groove); 500 mm for a calibration in N·m with weight in N (use inner groove). NOTE: 3D STEP files of most of our products are available on our website: www.magtrol.com ; other files are available on request. © 2022 MAGTROL | Due to continual product development, Magtrol...

T (removable calibration arms) Reference surfaces Cooling water connection ø15 mm CAUTION: All PB Series Dynamometers must be water cooled. NOTE: Original dimensions are in metric units. Dimensions converted to imperial units have been rounded up to 4 decimal places. a) 510 mm for a calibration in N·m with weight in kg (use outer groove); 500 mm for a calibration in N·m with weight in N (use inner groove). NOTE: 3D STEP files of most of our products are available on our website: www.magtrol.com ; other files are available on request. © 2022 MAGTROL | Due to continual product development, Magtrol...