General information, Consolidation, Vibration time

general information

Multiquip's CV Series Vibrator Motors are designed to work with flex shafts and vibrator heads for consolidation of fresh concrete to ensure optimum strength and durability. See Table 2 for the required shafts for the different vibrator motor models.

These vibrator motors have large vibration-isolated handles to protect the motor and the operator. They have a quick- disconnect knob for easy shaft removal.

The cassette-style motor improves durability and performance by minimizing friction and enabling the motor to maintain optimum RPM.

The flow-through ventilation feature of these motors reduces contamination by taking in air from the rear of the motor.

FLEXIBLE SHAFTS

Multiquip's flex-shafts vibrator heads are designed to work in medium to high slump concrete. Typical applications include small pours, slabs, driveways, stem walls and footings.

Typical shaft lengths range from 2 to 21 feet (0.6 to 6.4 meters). See Table 6 for recommended shaft lengths.

Steel heads, attached to one end of the flex-shaft, generate vibration via an eccentric rotator that consolidates the concrete by removing air pockets. The round head design allows for the transmission of vibration in all directions.

There are 7 different steel head sizes that range from 7/8 to 25/8 inches in diameter. Typical vibration frequency for these vibrating heads range from 9,200 to 12,150 VPM with 1-inch slump when using electric motors.

Consolidation

Consolidation eliminates pockets of air bubbles maximizing strength and eliminating voids. Vibrators consolidate concrete by transmitting shock waves which allow the aggregate to float freely while pushing lighter trapped air up and out of the concrete mix.

A properly consolidated concrete pour will display a thin line of mortar appearing along the form near the vibrator and the coarse aggregate has been dispersed evenly throughout the pour and is not visible.

vibration time

Vibration time depends on frequency. The higher the frequency, the less vibration time is required for the job.

vibration range

Vibration range (Figure 2) can be defined as "Area of Influence". This area of influence (vibrating radius) is the distance from the center of the vibrator to the outer most edge.

AREA OF INFLUENCE (VIBRATING RADIUS)

VIBRATOR HEAD

INSERTION SPACING

Figure 2. Vibrator Radius/Spacing

Table 4 shows the vibration radius and spacing for a given vibrator head diameter.

Table 4. Vibrating Radius/Insertion Spacing

Vibrating	Vibrator HD.		Vibration	Vibrator
HD. Model	Dia. in. (mm)#		Radius (R)	Spacing (D)

900HD	7/8 (22)		4 (102)	6 (152)
1000HD	11/16 (27)		5.5 (140)	8.25 (210)
1400HD	13/8	(35)	8 (203)	12 (305)
1700HD	111/16 (43)		12 (305)	18 (457)
2100HD	21/8	(54)	14 (356)	21 (533)
2600HD	25/8	(67)	18 (457)	27 (686)

NOTICE

Radius (area of influence R) and vibrator head spacing (D) are expressed in inches/millimeters. Radius and distance values expressed in Table 4 are only to be used as a general guide.Values are subject to change.

cv sERIES vibrator motor • operation and parts manual — rev. #0 (04/30/13) — page 15

CV3A/3B, CV1A, CV2a/2B specifications

Multiquip has established a strong presence in the construction and equipment rental industries with its versatile range of products, including the CV2A/2B, CV1A, and CV3A/3B concrete vibrators. These models are designed to enhance the efficiency and quality of concrete placements, making them essential tools for contractors and construction professionals.

The CV2A and CV2B are two models that stand out due to their user-friendly design and powerful performance. Both models feature a robust 1.5 HP electric motor that delivers consistent vibration to ensure uniform consolidation of concrete. The CV2A model is equipped with a 10-foot shaft, while the CV2B provides a longer 12-foot shaft, making them suitable for a variety of applications, from small to large pours. The ergonomic handle and lightweight construction allow for easy maneuverability, reducing operator fatigue.

The CV1A, on the other hand, is a more compact option that excels in smaller job sites and tight spaces. It features a 1 HP motor and a 6-foot shaft, making it perfect for residential projects and delicate applications. Its simple, straightforward controls make it easy for operators to achieve optimal vibration levels without extensive training.

For larger-scale operations, the CV3A and CV3B vibrators deliver unparalleled performance, capable of handling substantial concrete loads with ease. Both the CV3A and CV3B feature powerful 2 HP motors and longer shaft lengths, with 10 feet for CV3A and 12 feet for CV3B. These models are designed for heavy-duty applications, making them ideal for commercial and industrial construction projects.

One of the standout features across all these models is their durable construction. Built with high-quality materials, they can withstand the rigors of daily use on construction sites. Additionally, the vibrators are designed with maintenance in mind, featuring accessible components that streamline upkeep and repairs.

Furthermore, Multiquip's focus on safety is evident in these models, which include protective features to prevent overheating and electrical overloads. This commitment to safety, combined with their powerful performance and innovative design, makes the Multiquip CV2A/2B, CV1A, and CV3A/3B concrete vibrators reliable choices for any concrete-related task, ensuring solid results and increased productivity on the job site.