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A pin type vibrator coupling is the connector that links the concrete vibrator drive unit (engine/motor) to the flexible shaft (poker hose). It uses a locking pin system to securely transmit rotation.
Common Pin-Type Vibrator Couplings
How Pin Type Coupling Works
Has a male and female connector
Uses a steel pin (locking pin) to secure connection
Transfers rotation from engine → flexible shaft
Quick to connect/disconnect on site
Common in poker/needle concrete vibrators
Standard Sizes
Pin-type couplings come in different vibrator sizes:
28mm
32mm (most common)
38mm
45mm / 60mm (heavy duty)
These sizes match the vibrator needle head diameter and shaft size �
KHM Megatools Corp.
Types of Pin Coupling Systems
1. Japanese Pin Type (Most Popular)
Used in brands like Mikasa, Exen
Strong locking pin system.