Metal Contaminated Sugar Alert

Latest Metal Contamination Food Safety Alert

On the 28th July 2018, the UK Food Standards Agency released a food alert announcing ‘Tereos UK recalls Granulated Sugar due to the presence of small metal pieces‘.  This is the third report of metal being found in food reaching the consumer in 2018 after six metal contamination alerts in 2017.

Metal In Sugar

Metal enters the food manufacturing process via many different avenues.  Metal can be present in ingredients being delivered to a food processing plant and unless removed at source can enter the process and cause significant damage.  Equipment failure and wear can also lead to metal contamination and is usually removed with the right combination of magnetic separators and metal detectors.

The source of the metal contamination in the granulated sugar is presently unknown and an investigation is most likely underway.  The sugar is sold in the UK by the retailers Iceland, Poundland, and Sainsbury’s and has been recalled.  The metal contamination will be costly in terms of direct financial cost and reputation.

Getting Metal Out of Sugar

Removing metal contamination from granulated sugar is commonly achieved using Drawer Filter Magnets and Plate Magnets.  Plate Magnets are installed in chutes where the sugar flows over the surface.  Due to the small size of the sugar granules Neodymium Rare Earth Plate Magnets are preferable, producing the highest magnetic attractive force to remove small ferrous and magnetically-susceptible work-hardened stainless steel.

SC FF drawer - no tr#14B20B

Due to the potential sticky nature of the sugar, sleeved Drawer Filter Magnets are often preferred, in an easy-clean design.  The Rare Earth Tube Magnet sits tightly inside a fixed stainless steel outer tube.  Cleaning forms part of a daily maintenance schedule, with the Tube Magnets being withdrawn from the sleeves to drag and deposit metal contamination in a discharge chute.

Magnetic Separation Audits

Bunting engineers conduct regular Magnetic Separation Audits at many food manufacturing plants.  An audit involves the visual and physical inspection of every magnetic separator in a plant to check on the location, suitability integrity (ie checking welds and for wear), and magnetic strength (which can deteriorate with excessive heat, weld damage, or if dropped).  In April three Magnetic Audits were conducted and highlighted a number of issues that have since been addressed.

For more information on preventing Metal Contamination Food Safety Scares, or to arrange a free onsite survey and audit of a particular plant or process, please contact the Bunting team on:

Phone:  +44 (0) 1442 875081

Email:  sales@buntingeurope.com

Via the website

Other Food Safety Articles

 

RWM Becomes Metal Separation Test Centre

Interactive Stand 5Q11 at RWM

Visitor interaction is the theme of the Bunting stand at this year’s RWM (12-13 September, 2018, NEC, Birmingham, UK).  With their stand (5Q11) in prime-position opposite the entrance to the show, Bunting will invite visitors to take a lump of non-ferrous metal or stainless steel, place it on the belt of the metal separator, and witness separation.

Bunting Magnetics Europe at RWM16
The separation of stainless steel on a magnetic separator

“We wanted to do something different this year,” explained Dave Hills, Bunting’s Head of Sales.  “Visitor interaction is so important and we want people to handle the metal and then see what happens when they place it on the belt of the metal separation system.”

Operating on the stand at RWM will be a production-sized Eddy Current Separator and Stainless Steel Magnetic Separator, and demonstration-sized model of the popular Permanent Overband Magnet.

On the Stainless Steel Magnetic Separator, visitors will be able to separate several different materials.  These include large lumps of fragmented stainless steel, from secondary metal recycling plants, and printed circuit boards (PCBs) from electronic recycling operations.

The Stainless Steel Magnetic Separator uses a patented high strength magnetic roll that generates enough attractive power to separate even the weakest magnetic materials.  When passing through a shredder, the edges of stainless steel become weakly magnetic and this enables the effective separation.  Also, PCBs have small components that are weakly magnetic and these are attracted by the strong magnetic field and separated from non-magnetic materials.

Eddy Current Separators are a common feature at the RWM exhibition.  The Master Magnets design focuses on maximising non-ferrous metal separation whilst maintaining product purity levels.  The ability to produce the optimum separation of non-ferrous metals is dictated by the design of the high speed rotating magnetic rotor and visitors will be able to place non-ferrous metals on the separator and witness the dramatic and violent separation.

Bunting Master Magnets at RWM17
Non ferrous metals being separated on the Eddy Current Separator

As the Permanent Overband Magnet is one of the most commonly used magnetic separators in the recycling and waste industry, it was important to have a model on show.  Hundreds of Permanent Overband Magnets are built at the Redditch manufacturing facility each year and they can be seen on many pre-sorted refuse operations recovering steel cans and mobile plant such as crushers and screens.

“Participating in a demonstration is different to simply watching,” explained Hills.  “Visitors to the stand can choose the item they want to separate and then see what happens on the metal separator.”

For further information metal separation equipment designed for removing metal from plastic waste and in other recycling applications, please visit our website or contact us on:

Phone: +44 (0) 1442 875081
Email: press@buntingeurope.com
Via the website

Photographs taken by Paul Fears Photography

Other Plastic Waste & Recycling Articles

Metal Recovery Focus at CARS 18

Metal Recovery Equipment on Show at CARS Exhibition

At the CARS 2018 exhibition (11-12 July 2018, NAEC, Stoneleigh, UK), the focus on stand M6 will be on maximising the recovery of metal whilst also maintaining purity levels.

The Complete Auto Recycling Show (CARS) is Europe’s premier event for auto recyclers and material processors. It is the only event of its kind, drawing over 1,200 attendees from across the globe in 2016.

Unlike traditional trade shows, visitors get the chance to experience not only the indoor exhibitions, but to see working line demonstrations, participate in offsite tours, visit the Skills Lab and access the Conference Theatre – all included within the free ticket.

Master Magnets, the recycling focused division of Bunting Magnetics Europe Ltd, will be demonstrating the separation and recovery of non-ferrous metals and stainless steel on stand M6.

“Our focus is on recovering as much metal as possible in a high value grade,” explained Dave Hills, Bunting and Master Magnets Head of Sales.  “There is always a balance between recovery and purity and the best results often come from several stages of separation.”

Master Magnets has a complete range of metal separation equipment for every stage of metal recovery.

Ferrous Metal Separation

drum_magnet_installation

The primary metal separation stage in any recycling plant focused on ferrous metals.  Large Drum Magnets, specifically designed for the arduous environment, are commonly used along with smaller Drum Magnets and Pulley Magnets.

Non Ferrous Metal Recovery

Eddy Current

Eddy Current Separator designs have been perfected to enable the recovery of even the smallest non-ferrous metals.  Two rotor configurations (ie concentric or eccentric) are available to suit the specific application.  Recent developments include a precise splitter positioning system to maximise recovery and purity.

Stainless Steel Separation

Gershow-System_4336-300x225

Stainless Steel Magnetic Separators are a relatively new addition to the metal separation range of equipment that has been extremely popular in USA secondary metal processing plants.  There are two variations available:

HISC (High Intensity Separation Conveyor) – This enables the magnetic separation of small and mid-sized stainless steel – 10mm to 40mm (½” to 1½”) – and for wire-cleaning applications.

SSSC (Stainless Steel Separation Conveyor) – With a patent magnetic circuit design of high-intensity neodymium magnets, the SSSC can remove up to 94% of irregular shaped stainless steel – up to 125mm (5”) in size – from auto shredding or wire chopping stream.

On stand M6 at the CARS exhibition there will be demonstrations of both non-ferrous metal recovery on an Eddy Current Separator and Stainless Steel separation.

For further information on Bunting Magnetics and Master Magnets and our range of metal separation equipment designed for the metal recycling, please visit our websites or contact us on:

Phone: +44 (0) 1442 875081
Email: press@buntingeurope.com
Via the website

Metal Separation MOT at WASTE 18

A Free Review of Magnetic Separators and Eddy Current Separators

At this week’s WASTE’18 Expo (Thursday, 5th July 2018, Warwickshire Event Centre, Leamington Spa, UK), on stand A Bunting Magnetics and Master Magnets are offering a free Metal Separation MOT.

The Metal Separation MOT involves a site visit to review the positioning, set-up, strength, and separation performance of Magnetic Separators and Eddy Current Separators.

Over time, it is not unusual to find that the positioning and set-up of metal separation equipment has been changed.  This may have occurred during a maintenance period or during a break down, or there could have been a change in the plant layout.  Assessing the installation as an external auditor enables a review with a fresh pair of eyes.  At the end of the MOT, a report is prepared and submitted and this can form part of a company’s quality management.

For further information, please see us on stand A at the WASTE’18 expo.

At the show, Bunting and Master Magnets will be exhibiting and demonstrating the Stainless Steel Magnetic Separator and the Mastermag Eddy Current Separator.

Separating Stainless Steel

Bunting Master Magnets at RWM17

The successful recovery or extraction of stainless steel from mixed non-ferrous metals (eg WEEE) or non-metallic materials (eg plastic waste) has been an issue for many recycling companies.  The Stainless Steel Magnetic Separator has been designed with an ultra strong magnetic circuit to attract and deflect the weakly magnetic metal.  Stainless Steel becomes weakly magnetic, usually on the edges, when passing through a shredder or granulator.  Demonstrations on stand A at WASTE’18 will show stainless steel being separated.

Separating Non Ferrous Metals

MasterMagnets_ECS-0634

Maximising the recovery of non-ferrous metals, such as aluminium and copper, increases financial return whilst also reduces the amount of material passing to landfill.  On the stand, there will be demonstrations to show how effective the Mastermag Eddy Current Separator is in the high yield and high purity separation of small and large non-ferrous metals.

With the global focus on waste management and recycling, especially with regards to plastic waste, this year’s WASTE’18 is expected to be busier than ever.

To register for WASTE’18 go to Free Visitor Registration.

For further information on Bunting Magnetics and Master Magnets and our range of metal separation equipment designed for the waste and recycling sector, please visit our websites or contact us on:

Phone: +44 (0) 1442 875081
Email: press@buntingeurope.com
Via the website

EcoVyn Reduce Waste by 94% with Bunting Drawer Magnets

Magnetic Separators Remove Contamination from Plastic Waste

EcoVyn Ltd has installed two Bunting Drawer Filter Magnets to remove ferrous metal contamination from plastic waste.  Since the installation of the magnetic separators, EcoVyn has reduced their waste by 94%.

Bunting Magnetics Drawer Magnets at Ecovyn
Bunting Drawer Filter in situ at EcoVyn

EcoVyn Ltd is at the forefront of PVC compounding and brings pioneering new technology to the market place.  They offer one of the most advanced and innovative production processes in the UK producing reprocessed, blended and virgin compounds for a variety of applications.

EcoVyn first met Bunting at the Interplas international plastics exhibition in September 2017.  The company use a high proportion of plastic waste, of which 80% is post-consumer.  Presently, EcoVyn processes 1000 tonnes per month of good quality reclaimed plastic waste, which they plan to increase to 16,000 tonnes per annum.  The cleansed plastic waste is blended into virgin material, resulting in a 90% output of grade A product.  Waste generated during the manufacturing process is also recycled leaving less than 1% being discarded.

Bunting Magnetics Drawer Magnets at Ecovyn
Granulated plastic waste

However, plastic waste is often highly contaminated with metal.  Metal Detectors were already installed to remove the metal contamination, but the reject rate was very high with over 60 tonnes of waste being generated, of which a high proportion was good quality plastic.

At Interplas, EcoVyn explained the problem to the Bunting team who agreed to conduct a site review.  During the review it was concluded that easily removable magnetically-susceptible metal could be removed, leaving the metal detectors to detect and separate non-ferrous metals.  This would then significantly reduce the number of metal detector rejections and, therefore, the amount of waste generated.

After a review of the process, Drawer Filter Magnets were recommended to be installed between the screw conveyor transporting the 8-10mm sized infeed material and the metal detector.  The metal-cleansed material would then pass onto a pulveriser before continuing through the process.

The Bunting Drawer Filter Magnet is used widely in the plastics industry and enables the simple and effective removal of ferrous metal from free-flowing materials.  The Drawer Filters installed at EcoVyn have two rows of high strength Rare Earth Neodymium Magnets.  The top row has two Tube Magnets with three in the second row aligned to sit below the gap in the top row.  This ensures that all the product strikes at least one of the Tube Magnets, where ferrous metal is attracted by the strong magnetic field and captured.

Bunting Magnetics Drawer Magnets at Ecovyn
Ferrous metal captured on the surface of the Tube Magnets

After the installation of Drawer Filter Magnets, the amount of waste was reduced from 60 tonnes to 4 tonnes.

Since installing the Drawer Filter Magnets, EcoVyn has established that a 20 minutes cleaning frequency is required, highlighting the high level of metal contamination commonly found in plastic waste.  The ferrous metal found captured on the Tube Magnets ranges from small fine ferrous dust to nails, washers, steel sheet shards and electrical capacitors.

Bunting Magnetics Drawer Magnets at Ecovyn
Ferrous metals captured by the Bunting Drawer Grate Magnet including nails, a capacitor, washer, wire and steel sheet shard

Following the installation of the Bunting Drawer Filter Magnets, controlled laboratory tests have been conducted at Bunting’s Master Magnets facility in Birmingham which indicated that 99.9% of all ferrous metals had been removed.

The final plastic product produced by EcoVyn is then used to manufacture products such as pipe, internal windows, beading, picture frames, and shoe soles.

For further information on separating metal from plastics during the production of the virgin product or during the recycling process, please contact the Bunting team on:

Hillhead Attracts Bunting Europe

Bunting Europe Exhibit at Hillhead for the First Time

Magnetic Separators and Metal Detectors for the quarrying, mining and recycling industry will be on show on stand C9 at this year’s Hillhead exhibition (Hillhead Quarry, Buxton, 26-28 June 2018).

Bunting Master Magnets at RWM17

The joint Bunting Europe and Master Magnets stand will feature Permanent Overband Magnets (self and manual clean designs) and two different types of Metal Detector (the TN77 and QTA).

“Hillhead has always been a really important exhibition for Master Magnets,” said Dave Hills, Bunting’s Head of Sales.  “The Master Magnets Overband Magnets and Metal Detection Ltd range of detectors are widely regarded as industry standards for both quarrying and recycling.”

Held in a limestone quarry in the heart of the Derbyshire countryside, Hillhead is the largest exhibition of its kind anywhere in the world. Continually adapting, it provides a spectacular and unique setting for exhibitors and visitors alike to do business amongst live working demonstrations and static displays.

aggregate-industries-tn77-e1528271468785.jpg

Many quarries use the combination of a Permanent Overband Magnet and Metal Detector to protect processing equipment such as screens, crushers and conveyor belts.  The Overband Magnet removes any magnetic tramp metal leaving the Metal Detector to identify non-magnetic metal parts such as manganese steel digger teeth.

“The recycling of construction waste continues to grow in importance and features strongly at Hillhead,” said Dave.  “With equipment such as the Mastertrax Mobile Eddy Current Separator, we have practical solutions for removing ferrous and non-ferrous metals.”

May through to July is a very busy exhibition period for Bunting Europe and Master Magnets.  Hillhead is just over one month after the very successful IFAT waste and recycling show in Germany and is followed by the Waste ’18 exhibition (Warwickshire Exhibition Centre, 5 July) and CARS (NAEC Stoneleigh, 11-12 July).

“Exhibiting at these events is so important,” explained Dave.  “We meet both existing and potentially new clients and can also show them what our equipment can do.”

For further information on the Magnetic Separation and Metal Detection equipment on display at Hillhead, please contact Dave Hills on:

Phone: +44 (0) 1442 875081
Email: dhills@buntingeurope.com
Via the website

Master Magnets Mobile Eddy Current Separator (1200)

Metal Separation Demos Ignite Interest at IFAT 2018

Visitors to IFAT 2018 Enthralled by Working Magnetic Separators

An Eddy Current Separator was violently expelling non-ferrous metals from plastic waste on one side of the stand, whilst large chunks of fragmented stainless steel were being separated by the SSSC on the other.  ‘Seeing Is Believing’ was very much the basis of the Bunting and Master Magnets stand at IFAT 2018 (14th – 18th May 2018).

“We wanted to showcase our metal separation technology,” explained Dave Hills, Bunting’s Head of Sales, “and that meant having production-sized equipment operating on the stand.  The positive reaction of visitors highlighted the importance of being able to show metal being separated.”

IFAT is the first major waste and recycling exhibition of 2018 in Europe, featuring 3,305 exhibitors and over 141,000 visitors.  Key topics discussed during the week-long show included the filtering of microplastics; more effective recycling of plastics; and the digital transformation of the entire industry.

“Effective metal separation is vital for the successful recycling and reuse of many secondary materials,” said Dave.  “As a specialist in Magnetic Separation, we believed that the IFAT show provided the perfect platform to show recycling companies what is possible.  The show proved to be exceptionally successful and we are now in discussion with companies all over the world.”

Following the IFAT exhibition, many companies who visited the stand are sending samples to the Master Magnets laboratory in the UK for controlled tests to confirm the separation capability of both the Eddy Current Separator and Stainless Steel Magnetic Separator.

“There was a lot of interest in the Stainless Steel Magnetic Separator.  Stainless steel is a problematic material and, due to it’s hardness, can cause real problems in granulators and shredders.  Visitors were often surprised to see large fragmented stainless steel being attracted and separated.  It has generated a huge amount of interest and there is a lot of work to do.”

For further information on the Magnetic Separation equipment on display at IFAT, please contact Dave Hills on:

Phone: +44 (0) 1442 875081
Email: dhills@buntingeurope.com
Via the website

Bunting Exhibiting at IFAT 2018

Recycling Technology on Show in Germany

Bunting Magnetics Europe Ltd will be exhibiting at IFAT for the first time between the 14th and 18th May 2018, alongside their subsidiary company Master Magnets.  The stand (Hall B6 Stand 111) will be displaying working equipment including the SSSC Stainless Steel Magnetic Separator and a production sized Eddy Current Separator.

Bunting Master Magnets at RWM17
Stainless Steel held and separated on the SSSC

“Orders and interest for our [Bunting & Master Magnets] recycling equipment has never been stronger,” reported Dave Hills, Bunting’s Head of Sales.

IFAT is the first major waste and recycling exhibition of 2018 in Europe and is anticipated to be very well attended with a projected 140,000 visitors.

“Since the acquisition of Master Magnets [January 2017] we now have a total metal separation portfolio,” said Hills.  “On our stand at IFAT, we will be demonstrating how to successfully separate large stainless steel and recover small non-ferrous metals.  We want visitors to see rather than be told what separation is possible.”

Bunting Master Magnets at RWM17
The Eddy Current Separator in action separating non-ferrous metals

At the IFAT exhibition is also looking to meet potential distributors for the Bunting & Master Magnets magnetic separation range of equipment.

“With the international nature of the IFAT show, we are looking forward to finding and meeting companies who can support us in developing business in the recycling and waste sectors across Europe.”

For further information on the Magnetic Separation equipment on display at IFAT or to express interest in representing Bunting and Master Magnets in Germany or any other country, please contact Dave Hills on:

Phone: +44 (0) 1442 875081
Email: dhills@buntingeurope.com
Via the website

3 Magnet Audits Conducted For Food Safety

Testing Magnetic Separators in Food Processing Plants

In one week, we have conducted Magnetic Separation Audits at three separate UK food processing plants.  The audits form part of the quality management system of each company and are used for both internal and external food quality and safety assessments.

A Magnetic Separation Audit involves the physical testing and inspection of all Magnetic Separators.

Physically Testing the Magnetic Strength

The first part of the inspection assesses the magnetic strength.  This involves using a Pull Test Kit which includes a spring balance and various sizes and shapes of magnetically susceptible steel test pieces.  A Gauss Meter is not used as the readings can be inaccurate and variable.  The physical test involves placing the steel test piece on the surface of the magnet (on a magnetic pole) and measuring the amount of force (in kgs) that is needed to remove the item from the surface of the magnet.  This is then repeated and an average reading recorded.

Visually Assessing the Magnet

The second set of tests involve the visual inspection of the Magnetic Separators and we are checking for:

  • The amount of metal contamination captured by the Magnet;
  • Signs of damage or wear;
  • Weld integrity;
  • Fixings and any related safety issues (e.g. missing restraining nuts);
  • Cleaning regimes and ease of cleaning;

Findings

In the three recent audits there were a number of findings including:

  • Magnetic Separators were in locations where it was extremely difficult to clean and may be considered a safety risk;
  • Welds on a Magnetic Separator had been eaten away by the acidic product resulting in liquid penetrating the Tube Magnet.  This caused the magnets to expand within the stainless steel casing and also destroyed the magnetic field;
  • Damaged Tube Magnets
    Tube Magnets where the welds have failed and liquid has seeped inside the stainless steel casing causing the magnets to expand and lose all magnetic strength
  • The magnetic strength of some Magnetic Separators (especially those that had been installed for some time) was very poor and the level of separation would be minimal;
  • In some locations, Magnetic Separators had been removed from the process but were still registered in the system;
  • The positioning of some Magnetic Separators could be changed to improve the metal separation performance;

Action

Following the Magnetic Separation Audit, a full report, with all the test results, is written and submitted with recommendations.  This then forms part of the food processing company’s internal quality audit system and is refereed to when there are inspections from external third parties and customers.  Commonly the audit is repeated on a annual basis using the same test parameters.

Similar audits are also undertaken in other industries including Plastics Production and Recycling.  An annual health check ensures that the Magnetic Separators are performing to their maximum potential and achieving the separation goals for which they were originally installed.

For more information on the issue of Metal Contamination and Metal Separation, or to arrange a free onsite survey and audit of a particular plant or process, please contact the Bunting team on:

Phone:  +44 (0) 1442 875081

Email:  sales@buntingeurope.com

Via the website

Plastics Positivity at Technivation

Polymer Training and Innovation Centre Hosts UK Plastics Sector Professionals

The Technivation conference, hosted by the Polymer Training and Innovation Centre in Telford (18th April 2018), attracted delegates from across the UK plastics sector.

The Polymer Training and Innovation Centre (PITC) provides training for engineers working with plastics and has an extensive range of working equipment including moulding machines, pneumatic conveying systems, and magnetic separators.

Bunting Europe at TechnivationAt Technivation, there were talks from machinery manufacturers and also an industry update from the British Plastics Federation.  BPF Membership Services Director, Stephen Hunt, highlighted a change in the awareness and public perception of plastics since the airing of the BBC Blue Planet II series at the end of 2017.  The BPF have been working hard to clarify misconceptions about plastics, highlighting that plastic is vital in the manufacture of so many products including cars, medical equipment, and IT.  They are presently working closely with the UK Government on the proposed tax for single use plastics, which closes on 18th May 2018.

As Stephen Hunt explained, the plastics sector is the 8th largest exporting industry in the UK with a turnover of £25.5 billion.  The sector is also the 2nd largest employer in the manufacturing industry.  He also highlighted how waste from the USA and European Union combined only contributes 2% to the amount of plastic waste found in our oceans.

Delegates at Technivation had the opportunity to tour the training facility and meet representatives from equipment manufacturers including Summit Systems, Kistler, Arburg, and Staubli.  Tom Higginbottom, Bunting’s Sales Engineer, was demonstrating how to effectively remove metal from the plastics process using a combination of a FF Drawer Filter Magnet and Quicktron Metal Detector.

“At Technivation it was really good to be able to demonstrate how to remove metal and also to show how the equipment is actually installed on a working moulding machine,” explained Tom.  “We supplied the FF Drawer Filter Magnets to PTIC so that the importance of metal removal is included in the training programmes.”

For further information on separating metal from plastics during the production of the virgin product or during the recycling process, please contact the Bunting team on:

Bunting Europe at Technivation