Why McLanahan Auger Sampling Systems
In an ideal situation, bulk materials are mechanically sampled from a moving material flow. Examples of ideal sampling locations include on a moving belt conveyor, free-falling in a vertical chute, or as material is discharged from a conveyor at a transfer point. In actuality, however, this is not always possible and other means of sample collection must be used. The most common example of this situation is where material to be sampled is confined in some type of container for transportation purposes.
Bulk materials are frequently transported via truck, rail, or other container, and often there is no other option for sampling other than to collect samples from the transport container, particularly in as-shipped and as-received situations. These are the types of applications to which auger sampling systems are well suited.
McLanahan offers a wide range of Auger Sampling options from basic, manually operated primary auger sampler station to more fully automated multi-stage systems. The key components that distinguish these types of systems from other sampling systems are the auger itself and the device used to maneuver the auger. Three standard auger sizes are available from McLanahan, 12” (305mm), 20” (510mm) and 24” (610mm), all of which meet the needs of most common applications. Augers can retain the complete auger increment, but they are also available with integral sample splitters. These sample splitters can reduce the total amount of material collected by the auger by predefined ratios, commonly 6:1 or 4:1, but the actual ratio can be customised based on application. Auger maneuvering options include basic vertical auger motion, manually controlled hydraulic crane, partial motion auger gantry, and full motion auger gantry. Augers and auger sampling systems can also be designed as permanent stationary systems or semi-portable units that can be partially disassembled and relocated.
Once primary sample increments are collected by the primary auger sampler, processing those increments is the same as any number of other multi-stage sampling systems for which McLanahan has become well-known. What makes auger systems unique is that they are nearly always customised in some way to meet a client’s application requirements. Tailoring sampling solutions and customising system layouts and equipment to meet a client’s specific needs is an area in which McLanahan excels.