For preparation of larger laboratory samples or for light industrial applications, Glen Creston offers a range of machines that can cope with high throughputs whilst still producing reasonable particle sizes.
From our Jaw crusher, for primary sample breakage prior to further processing, to the McCrone Mill, which will grind to analytical fineness, these machines can cope with a wide range of materials from rocks to edible grains.
Several of the machines can be used either as stand alone machines in the laboratory or incorporated into process lines for in-line processing of material.
Glen Creston strives to improve their machines as well as manufacture and design bespoke special machines to customers’ specific requirements for grinding and crushing applications.
We have an application test laboratory equipped with a range of machines where customer sample materials are evaluated and the appropriate equipment recommended to meet their requirements.
For process applications our two main offerings are the Roller Crusher Mill and the Swing Hammer mill.
ROLLER CRUSHER MILL
Glen Creston’s Roller crusher mill is a machine that Process engineers will find indispensable due to its low profile and ease of inclusion into process lines.
This rugged, slow-running mill is equipped with either a single or double roller shafts fitted with crushing cams which rotate between crushing and stripping combs. Different shaped crushing elements are available depending on material. Heavy duty screens can also be fitted to control discharge particle size more closely.
The Roller Crusher is particularly suitable for de-agglomeration of materials from sacks or silos, pre-crushing softer minerals and for granulating coarse lumpy, caked or compacted materials into more manageable lump sizes.
- Robust construction
- Minimal maintenance
- Compact design allows retro-fitting into existing process lines.
- Parts easily removed for maintenance/repair
- Pigments and Resin
- Food and Pharmaceutical
- Waste materials and Ash
OPERATING PRINCIPLE /CONSTRUCTION
The crushing cams of wear-resistant steel are mounted on the roller shaft in staggered positions, accurately spaced so that they pass between the crushing and stripping combs which are mounted laterally on opposite sides of the inner housing. Both sets of combs are identical in design but have different functions.
The bearing plates at both ends of the housing accommodate the roller bearings, protected by radial seals, in which the shaft rotates. These bearing housings can be offered in extended mountings to allow for cooling when processing high temperature materials such as power station ash.
The second shaft of the Double Roll Crusher is driven by grease-lubricated gear wheels on the outside of the housing.
SWING HAMMER MILL
The Glen Creston Swing Hammer mill range is designed for light/medium duty crushing of a broad range of materials in batch, in-line and recycling applications. Available in cast iron/carbon or steel stainless steel and with a blower discharge option this versatile mill is a cost effective solution for process engineers.
From waste glass to cosmetic pigments the swing hammer mill range will tackle many dry materials at rates of a few kg to up to 1000 kg per hour, depending on material and screen size.
The mill features a 180º, full width, discharge screen which is easily interchangeable once the safety interlocked top half of the mill is hinged back to give unrestricted access to the crushing chamber.
Material enters the grinding chamber where it is ground by the action of swinging hardened steel hammers against a serrated face. The ground material then passes out of the mill through a screen. Normal discharge is by gravity but there is also a blower discharge option designed to help discharge of light materials that may otherwise remain in the crushing chamber.
The durable mill body is constructed from cast iron with 12, 18 or 30 hardened steel hammers, depending on model. The hammers have four grinding edges which can be rotated in turn to give maximum life. The body, hammers and screen of the gravity discharge model can also be constructed of stainless steel for applications such as food or pharmaceuticals where corrosion resistance is essential.
The mill can be supplied with a stainless steel hopper and a stand for use as a stand alone laboratory of batch grinder, or with just the motor bedplate for inclusion into a process line.
This type of mill has been used successfully to grind Chemicals, Resins, Grain, Clay, Seaweed, Fruit (Dried), Wheat, Barley/Oats, Domestic waste, and Glass, but could be applied in any similar situation