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Hydraulic C3, CC4.5, CC7,
D4.5 and D7 Series

Performance | Dimensional Data | Selection Guide | Accessories

Global Design Series Vibrators Hydraulic
Global Motor-Driven Design Series Vibrators Hydraulic

Hydraulic Design Series Vibrators use an external hydraulic motor to drive shaft mounted eccentric weights to produce rotary vibration. Because of their separate motor these vibrators can produce substantial force with moderate frequency.

When harnessed by proper mounting of the Design Series vibrator, this rotary vibration is transferred through the hopper or bin wall to the material within. As the material vibrates, its displacement from the hopper wall reduces friction with the wall and allows gravity to restore material flow. Proper mounting also disperses the rotary vibration over a large area producing uniform material flow. Since rotary vibration is directional, material will be encouraged to flow in the direction of the rotating weight.


  • Motor driven vibrators are more efficient and effective at producing large amounts of force than many types of pneumatic vibrators. They are highly effective at moving large quantities of almost any type of bulk solid from fine, light weight materials to large masses of "stuck" solids, including sand, flour, chemicals, sugar, cement, powders, spices, clay, lignite, coal dust, and many others. It is easy to control the force and frequency by adjusting the flow.
  • When the frequency of the vibration matches the natural frequency of the material, enhanced flow can be achieved with a minimum of force.
  • It is easy to tune a hydraulic Design Series vibrator to the material being handled. Simply increase the speed by gradually adjusting the flow to the vibrator until material flow is achieved. This way you obtain the maximum result with the minimum of air consumption and vibrator wear. Once the material moves freely, the vibrator can be turned off until it is needed again.


  • Produces Uniform, Directional Flow.
  • High Amplitude, Moderate Frequency vibration.
  • Bi-rotational Hydraulic Motor.
  • Versatile - Easy to control force and frequency by adjusting the flow.
  • Available in Permanent Mount and Portable Clamp-on Mount. Clamp-on vibrators use square head set screws with concave cup points for positive self-locking and vibration resistance.
  • Unique drive coupling protects motor shaft, vibrator shaft, bearings and seals from stress and unbalanced load of the weights; prevents air leaks; and gives longer life. Finest design available anywhere.
  • Rugged Construction - Ductile iron housings, lightweight hardened aluminum covers, and sealed bearings to keep lubrication in and contaminants out.
  • Easy repair and maintenance - designed for easy change-out of bearings, motors, couplings, and other components to refurbish Design Series vibrators to like new condition. Bearings, o-rings, retaining rings, etc. are standard, commonly available parts. Hydraulic Motor Repair Kits available to return motor to like-new condition.
  • Five-Year Warranty.


  • Adjustable weights available on C3, D4.5, & CC4.5 models.
  • Roller bearings available on D4.5 & CC4.5 models to give speeds up to 7,500 RPM with intermittent use. Roller bearings give 5 times greater life than standard bearings. Roller bearing models have special oil lubrication system and vented covers to minimize heat build-up and transfer heat away from the bearings.

Operating Requirements:

  • 1.7 - 15.1 GPM depending on motor & size. 80-3,000 PSI depending on motor & size.
  • Maximum Ambient Temperature = 350F (175C).

Vibrator Selection:

  • Selection based on the weight of the material in the sloped portion of the container.
  • In general, select the pneumatic Design Series vibrator capable of producing a force equal to one-tenth the weight of the material when the vibrator is operating at medium speed (3,000-4,000 rpm).
Global Hydraulic Design Series Vibrators Selection Guide
3,500 - 5,000 1,588 - 2,268 C3-1.5-2HC
5,000 - 6,000 2,268 - 2,2722 C3-2.0-2HC
6,000 - 7,000 2,722 - 3,175 C3-2.5-2HC
7,000 - 9,000 3,175 - 4,082 C3-3.0-2HC
9,000 - 12,500 4,082 - 5,670 C3-4.0-2HC
12,500 - 15,000 5,670 - 6,804 C3-5.0-2HC
15,000 - 20,000 6,804 - 9,072 C3-6-2HC, D4.5-6-5HC
20,000 - 25,000 9,072 - 11,340 D4.5-8-5HC
25,000 - 30,000 11,340 - 13,608 D4.5-10-5HC
30,000 - 40,000 13,608 - 18,144 D7-12-8HC
40,000 - 50,000 18,144 - 22,680 D7-18-8HC
50,000 - 75,000 22,680 - 34,019 D7-25-8HC
75,000 - 100,000 34,019 - 45,359 D7-50-8HC


  • Brackets for C3 models provide wedge mount for railcar pockets.
  • Hydraulic Motor Repair Kits - Kit #1 includes ball bearing, needle bearings, seal, and gaskets. Kit #2 includes ball, crescent ring, keys, drive pin, plug, torx screws, retaining rings, spring, idler shaft, and spacer.
  • Sirometer - Convenient, compact RPM Meter for measuring vibrator speed.
Global Hydraulic Design Series Vibrators Accessories
VIBRATOR MODEL C3 D4.5 or CC4.5 D7 or CC7
Hydraulic Motor 2HC 5HC 8HC
Port Size 16 SAE O-RING 16 SAE O-RING 14 NPT
Minimum Hose Size ID 5/8 ID ID
Displacement 0.129 CU IN 0.388 CU IN 0.698 CU IN
--- 2.11 CC 6.36 CC 11.43 CC
Maximum Speed 5,000 RPM 5,000 RPM 5,000 RPM
Flow at 2.8 GPM 8.4 GPM 15.1 GPM
Maximum Speed 17.7 LPM 38 LPM 69 LPM
Maximum Continuous Pressure 3,000 PSI 1,600 PSI 2,000 PSI
--- 207 BAR 110 BAR 138 BAR
Maximum Intermittent Pressure 4,000 PSI 2,500 PSI 3,000 PSI
--- 276 BAR 172 BAR 207 BAR
Maximum Back Pressure 350 PSI 350 PSI 350 PSI
--- 24 BAR 24 BAR 24 BAR
Motor Repair Kit #1 HMRK #1-2/5HC HMRK #1-2/5HC HMRK #1-8HC
Motor Repair Kit #2 HMRK #2-2HC HMRK #2-5HC HMRK #2-8HC
Wedge Bracket for Standard Railcar Pocket C3/GBM N/A N/A

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