Food & Drink Processing & Packaging Issue 35 2021 | Page 23

To complete their combination CM33 Washdown or CM35 Washdown , customers can choose one of three stainless steel Mettler-Toledo Profile metal detectors . These are the Profile Combi LS ( for small , packed product applications ), Profile Advantage ( maximum sensitivity to take on challenging applications ) and Profile R / RZ ( advanced inspection of bulk , dry product applications ).
As with the C33 PlusLine Washdown Checkweigher and C35 AdvancedLine Washdown Checkweigher , the combination CM33 Washdown and CM35 Washdown reduce downtime when cleaning due to their smart hygienic design . This makes them ideal for use with applications that require stringent cleaning processes using caustic cleaning agents to combat bacterial contamination risks , without compromising their weighing accuracy and detection sensitivity . Potential applications include yoghurt cups and cheese trays without aluminium foil lids . These are the kinds of applications where ingredients can spill over and contaminate parts of the product inspection machinery , hence requiring robust washdown cleaning .
Quick and efficient cleaning is aided by the washdown systems ’ sloped surface design , which discourages liquid or debris collection . Ingress protection is also a key design factor : the CM33 Washdown and CM35 Washdown and their Human-
Machine Interfaces ( HMIs ) are IP69 rated , so able to resist the most caustic detergents and disinfectants . Together , these hygienic design features reduce the amount of operational downtime needed to efficiently complete rigorous cleaning regimes .
Quick and efficient cleaning is aided by the washdown systems ’ sloped surface design , which discourages liquid or debris collection .
Components such as the metal detector conveyor and the product collection bin are easily dismantled and reassembled , while tool-free maintenance delivers even greater uptime . A self-adjusting elastic belt removes the need for tensioning , and ensures the belt is correctly aligned in the centre of the conveyor . This helps to reduce the possibility of damage to the belt and subsequent unexpected downtime . Customers can choose from a range of options for dealing with rejected products , including a tunnel for under- and over-weight products , and swing gate , air jet and pusher mechanisms .
Further time is saved through storing job parameters in the HMI that can be instantly recalled for automatic job set up on both the checkweigher and metal detection system . Up to 250 recipes can be stored in the HMI and additional memory for more recipes can easily be provided when required .
“ The CM33 Washdown and CM35 Washdown systems bring something new to the market ,” said Frank Borrmann , Market Manager at Mettler-Toledo Product Inspection . “ These are highly automated , high performance machines , utilising Mettler-Toledo ’ s well-known precision technology – among the most advanced in these fields today – packed into a compact , open frame unit that is proven to be able to work in the harshest of washdown environments with no loss of quality . In addition , by combining checkweighing and metal detection in a single machine , food manufacturers can also save space in their factories , and benefit from service and support from a single supplier ”.
Mettler-Toledo began developing combination product inspection systems in response to customer issues such as the difficulty of fitting all the inspection technologies they require into limited factory floorspace . The foundation stone of these product innovations is Mettler-Toledo ’ s modular C-Series range of checkweighers , which enable great flexibility when integrating other product inspection technologies . As well as metal detection , Mettler-Toledo ’ s combination systems can also include x-ray , vision inspection and track and trace technology .
The integration includes not only hardware but also software . The CM33 Washdown and CM35 Washdown , as with other combination systems , have two HMIs that run in parallel – one for the checkweigher , one for the metal detection system – communicating with each other , and giving the combination systems built-in redundancy . If one HMI fails , the other automatically takes over , ensuring that no unnecessary downtime is incurred , and all Critical Control Points continue to function .
For more information , visit www . mt . com / cw-washdown-pr
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