Why Choosing the Right Vibrator Matters
Concrete pours vary in size, depth, reinforcement density, and mix stiffness. Using the wrong vibrator can lead to poor compaction, cracking, weak bonding, or honeycombing.
Selecting the correct concrete vibrator ensures proper density, structural strength, and a smooth, durable finish across all concrete applications.
What Is a Concrete Vibrator?
A concrete vibrator is a compaction tool that removes air pockets from fresh concrete through rapid vibration. Choosing the right combination of vibration frequency, poker head diameter, and shaft length is essential for correct consolidation.
Quality vibrators include:
- High-frequency motors
- Reinforced flexible shafts
- Durable poker heads
- Stable, ergonomic operation
Types of Concrete Vibrators
Internal (Poker) Vibrators
Inserted directly into the concrete.
Best for: slabs, beams, walls, foundations, footings.
External Vibrators
Mounted on formwork.
Best for: precast moulds and thin walls.
Surface Vibrators
Used to vibrate the top layer of slabs.
Best for: shallow pours and finishing operations.
Key Things to Consider When Choosing a Concrete Vibrator
1. Poker Head Diameter
Different diameters suit different reinforcement layouts:
- 25-35mm: Tight reinforcement, columns
- 35-50mm: General slabs and walls
- 50-65mm: Large pours and foundations
2. Shaft Length
Choose based on pour depth and access requirements.
3. Vibration Frequency & Power
Higher frequencies deliver faster compaction and better performance in stiff mixes.
4. Application Type
Match the vibrator to your project:
- Residential slabs – medium heads
- Industrial floors – larger heads
- Precast – external vibrators
- Thin or heavily reinforced structures – small heads
5. Durability & Build Quality
Look for:
- Heat-resistant shafts
- Heavy-duty casings
- Reinforced heads
- Reliable couplings
Benefits of Choosing the Right Concrete Vibrator
Better Compaction Results
Ensures full consolidation without weak areas.
Reduced Honeycombing
Smaller poker heads reach tight spaces in reinforcement.
More Efficient Workflow
Correct sizing speeds up the compaction process.
Stronger, Longer-Lasting Concrete
Correct vibration increases overall durability and performance.
Best Practices for Selecting Vibration Equipment
- Assess pour depth and reinforcement before choosing a poker size
- Select shaft lengths suited to the pour layout
- Match vibrator power to concrete stiffness
- Keep spare heads for large continuous pours
- Choose reputable, durable brands with local support
Why Choose All States Africa for Concrete Vibrators
All States Africa provides a full selection of Masterpac concrete vibrators suitable for any construction environment. Our team helps contractors choose the most effective model based on project scope, reinforcement density, and concrete volume.
We supply:
- Multiple head sizes
- Various shaft lengths
- High-frequency vibration units
- Equipment built for continuous and heavy use
“Choose right. Vibrate right. Build right.”