PM-Series Shakers

PM-Series ShakerMB PM-Series Shakers use permanent magnet technology and the voice coil principle to create vibration. These general-purpose shakers are heavy duty, industrial-quality equipment with a proven track record of lasting ten, fifteen, even over twenty years in demanding applications. You can buy “bargain basement” shakers or you can invest in MB PM-Shakers that will provide you with years of dependable, reliable, and consistent testing. Choose from five different sizes – depending on your needs – with maximum sine force ratings of 25, 50, 100, 250 or 500 pounds.

The PM25A, PM50A, and PM100A Shakers all have ½” stroke and a 2.7″ diameter mounting table. The PM250HP and PM500HP Shakers each have 2″ of stroke and a 4.1″ diameter mounting table.

MB Dynamics: Your Total Shaker System Supplier

MB delivers turnkey vibration test systems including PC-based Win2K10 vibration and shock controllers, MISO software or MIMO software, special-purpose fixtures, head expanders, oil-film slip table assemblies, horizontal moving tables with patented flexures, AGREE systems for combined environmental and vibration testing, data acquisition hardware & software, and vibration and acoustic instrumentation and signal conditioning.

PM-Series Maximum Ratings

PM-Series Shakers MB and P-Series Amplifiers Force Ratings Max Accel
g’s pk
SINE Velocity
ips pk
SHOCK Velocity
ips pk
30g 11ms Payload Max Stroke
in pk-pk
Freq. Range
Hz
Armature
Model Coupling DC/Match SINE
lbs pk
RANDOM
lbs rms
SHOCK
lbs pk
Res.
Hz
Wt
lbs
Bolt Circle
inches
Diam.
inches
PM500HP PVL DC 500 250 500 80 55 55 10 2 DC-3k 2,800 6.2 3.5 4.1
PM250HP MB1000VI DC 250 125 250 80 55 55 5 2 DC-3.5k 3,000 3.1 3.5 4.1
PM100A MB500VI DC 100 50 100 106 70 70 2 0.5 DC-7k 6,000 0.94 2.25 2.7
PM50A MB500VI DC 50 25 50 80 70 70 1 0.5 DC-10k 8,000 0.5 2.25 2.7
PM25A MB500VI DC 25 12 25 50 70 70 0.3 0.5 DC-10k 8,000 0.5 2.25 2.7

 

Download the PM-Series Shaker Data Sheet (PDF)

Performance Ratings
Description PM25A PM50A PM100A PM250HP PM500HP
Force Output 25 pounds Pk* 50 pounds Pk* 100 pounds Pk* 250 pounds Pk * 500 pounds Pk*
Displacement 0.5″ Pk -Pk 0.5″ Pk -Pk 0.5″ Pk -Pk 2″ Pk-Pk 2″ Pk-Pk
Velocity 70 in/sec Pk 70 in/sec Pk 70 in/sec Pk 60 in/sec Pk 60 in/sec Pk
Acceleration (bare table) 50 g Pk 80 g Pk 106 g Pk 80 g Pk 80 g Pk
Frequency Range DC-10,000 Hz DC-10,000 Hz DC-7000 Hz DC-3500 Hz DC-3000 Hz
Cooling 8 scfm @3″ H2O 13 scfm @3″ H2O 26 scfm @12″ H2O 80 scfm @30″ H2O 80 scfm @30″ H2O
Coil Current &
Resistance
4 amps; 2.7 ohms 8.5 amps; 1.3 ohms 8 amps; 2.6 ohms 40 amps; 0.21 ohms 38 amps; 0.5 ohms
Suspension Stiffness 75 lbs/in 75 lbs/in 75 lbs/in 40 lbs/in 40 lbs/in
Stray Field – 1″ over
center
< 20gauss < 7 gauss < 8 gauss < 40 gauss < 20 gauss
DC Centering Drives 25 lbs to 1″
Pk-Pk with
20% force derating
Drives 50 lbs to 1″
Pk-Pk
with 20% force
derating
Mechanical Specifications
Description PM25A PM50A PM100A PM250HP PM500HP
Mounting Surface
Bolt Holes
Six 10-32 threaded holes at 60o on 2.25″ bolt circle
(+ center)
Six 10-32 threaded holes at 60o on 2.25″ bolt circle (+ center) Six 10-32 threaded holes at 60o on 2.25″ bolt circle
(+ center)
Six ¼x28 threaded holes at 60o on 3.50″ bolt circle
(+ center)
Six ¼x28 threaded holes at 60o on 3.50″ bolt circle
(+ center)
Moving Element Diam. 2.70″ 2.70″ 2.70″ 4.10″ 4.10″
Base Footprint 10″ x 7.5″ 10″ x 7.5″ 10″ x 7.5″ 18″ x 14″ 18″ x 14″
Body Diameter 7″ 7″ 7″ 14¼” 14¼”
Height (to table top) 7½” 9½” 13½” 17¼” 20¼”
Moving Element
Axial Resonance
8200 Hz 8000 Hz 6000 Hz 3000 Hz 2800 Hz
Weight, Moving Element 0.50 pounds 0.62 pounds 0.94 pounds 2.6 pounds 5.0 pounds
Weight, Exciter 38 pounds 55 pounds 80 pounds 250 pounds 420 pounds
Weight, Base 7 pounds 11 pounds 15 pounds 25 pounds 25 pounds
Base Type 2-position; rigid 2-position; rigid 2-position; rigid trunnion Trunnion
Trunnion Base optional optional optional standard Standard
Cooling Connections 0.5″ NPT 0.5″ NPT 0.5″ NPT 2.0″ port 2.0″ port
Dimensions

PM-Shaker Dimensions

Dimensions A B C D E F G H Cooling
PM25A 10″ 5″ 5 ½” 2.25″ 7-3/8″ 7-7/32″ 7-15/32″ 10-32 ½ NPT connection for cooling air 8 CFM at 3″
H2O
PM50A 10″ 5″ 7 ½” 2.25″ 7-3/8″ 9-7/32″ 9-15/32″ 10-32 ½ NPT connection for cooling air 13 CFM at 4″ H2O
PM100A 10″ 5″ 7 ½” 2.25″ 7-3/8″ 13-7/32″ 13-15/32″ 10-32 ½ NPT connection for cooling air 26 CFM at 12″ H2O
PM250HP 18″ 9″ 14″ 3.50″ 14 ¼” 14 ¼” 17-3/16″ ¼ – 28 2″ connection for cooling air 80 CFM
PM500HP 18″ 9″ 14″ 3.50″ 14 ¼” 19-3/4″ 20-5/16″ ¼ – 28 2″ connection for cooling air 80 CFM
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S&R/BSR test systems for vehicles, subsystems, components, and materials. Quiet excitation: 1–6 axes
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Steering test systems for quiet evaluation of rattle, NVH & performance issues – non-hydraulic
Suspension Component Test Systems
Suspension component test rigs for noise characterization, NVH & performance evaluations – passive and active components
Transducer Calibration
Accelerometer calibration – ISO16063-21; 0.1Hz; 600 g sine; 13,000 g shock; 8-DUTs; -185°C to +800°C; transverse sensitivity
Modal Exciters & Amplifiers
Modal excitation: 50 N – 4000 N forces, Ethernet control of remote amplifiers, largest installed base over 30+ years
MB Millenium Dynamic Control Systems
Vibration and force control systems, single and multi-shaker. Time History, Random, Sine, Linear and Rotary
Engineering Services
Engineering Services for noise & vibration test method development and execution, equipment service & maintenance
Shaker Systems
Electrodynamic shaker systems for vibration test from 100N – 22kN, quiet BSR, modal, air bearing for calibration