Product Overview
The Whirligig Heavy Duty is designed for reliable shaft speed monitoring in challenging environments such as quarries and cement factories. Its stainless steel construction and sealed bearings make it suitable for corrosive conditions.

Application
This device is used on conveyors, elevators, and other rotating shafts to monitor speed under various conditions. It is unaffected by machine vibration or movement as it moves with the shaft.

Method of Operation
An inductive sensor within the Whirligig detects a target, creating a pulse for each rotation. It can connect directly to a control unit or other systems. The assembly bolts to the machine's shaft using an M16 thread.

Sensors & Accessories
- Rotation control module AUE 400
- Inductive sensors: 18 mm P100 or 30 mm P300
- Speed switches: 18 mm M100 or 30 mm M300
Detailed specifications and instructions are available upon request.

Technical Specifications
- Construction: 304 Stainless steel
- Bearing: Sealed twin stainless steel
- Mounting thread: M16x2, specify right or left-hand thread
- Temperature range: -25°C to +50°C
- Maximum speed: 3,000 rpm
- Pulses/targets: 1, 2, 4, or 8 pulses

Reference
WGHD 4 12 R: Number of targets, sensor diameter, and thread type (R for right-hand, L for left-hand).