Interplas Feature

Jul 23, 2023

Magog Industries are long established UK designers, manufacturers and suppliers of processing, mixing and conveying screws and barrels. Based in Ware, Hertfordshire, the company operates across the UK, Ireland, Europe and beyond.

Working in partnership with European and UK manufacturers allows for enhanced solutions to include splines, co-rotational shafts, mixer elements and sectional barrels. Magog offer their latest range in coatings and materials, designed to further enhance longer life and greater resistance in demanding processing where increased proportions of glass reinforced and recycled material is used.

“At Magog we constantly strive to offer solutions from optimal design to reduce wear to offering a wide range of surface technologies, explained John Allsop, Director and General Manager. “We design everything in-house but also work closely with specialist partners to meet our customers’ specific processing and production requirements”.

“Our three core competencies run through everything we do: process experience, manufacturing expertise and engineering excellence”

Enhanced coatings specification include: Thin Dense Chrome (TDC) to enhance wear with low friction and is FDA Approved for food process environments. Ceramic Seal coatings reduce porosity and increase plating/coating life 4 to 10 times longer in corrosive environments.

In addition, HVOF (High Velocity Oxygen Fuel) that is thermally sprayed applied provides a crack-free 98 per cent density with hardness of 62 to 72 HRC. This scratch-resistant tungsten carbide coating has gained much interest among plastics moulders and will be demonstrated on Stand H85, Hall 4 at Interplas 2023. Magog also offer screws and barrels for processing more aggressive material from through hardened D2 tool-steel to high-performance alloys such as Hastelloy (nickel-molybdenum) and Incoloy (nickel-iron-chromium).

All standard screws and barrels are manufactured in high-grade tool-steel. For example, EN41B steel provides hardwearing performance but also allows for hard welded bi-metallic alloy flights to be applied at a later time.

Further enhanced specifications for barrels include Hot Isostatic Pressing (HIP) to reduce porosity and increase the density of the barrel surface and can be used as an alternative to Hastelloy or Incoloy when processing, for example using PTFE or Fluoropolymer material.

In additions to new parts, Magog also specialise in refurbishment of pre-used parts which extends the life of screws and barrels by re-honing and partial re-line of barrel bores and hard welded re-build of screw flights in bi-metallic alloy as standard. This provides a cost-effective option. In addition, the company has full in-house design facilities to offer the customer enhanced material throughput with reduced shear resulting in lower operating cost.

Recent projects have increasingly turned to, for example: effective processing of bio-degradable plastics and increased wear resistance to process aggressive additives from recycled material, as John explains, “We’ve been focussing on looking at measures, particularly surface treatment for abrasion and potential corrosion to increase resilience and longevity specifically in ceramic and chrome seal coatings for demanding applications such as blown film extrusion.”

For more information contact Magog Industries: [email protected] Tel: 01920 465201 or visit www.magog.co.uk

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