Many processors make their own repairs to equipment, but in the case of agitators, the repair must be sound to avoid problems in the future. Mepaco Service technicians are trained and experienced to troubleshoot shaft wear and are specialists in the repair of stainless steel. Here is a list of what not to do when making your own repairs:
If you need to make a repair to continue production, be sure to schedule after care for the agitator. You need an assessment to make sure the agitator is straight and that the welds will hold under stress. We are currently experiencing long lead times for replacement agitators, so whether it is an after-event service call or a scheduled audit, it is important to have the agitator checked out to maintain production up-time.
There are multiple reasons to use a portable dumper equipment solution. Processors with quick turn batches and reoccurring recipe changes benefit from a portable dumper to use in multiple production areas. Some processors prefer to move equipment to designated sanitation areas. Also, the column dumper must be portable and move out of the way for mixers that require clearance for tipping hoppers to unload.
Another feature on the column dumper is an extended chute integrated with a 60-degree dump angle. The extended chute covers the gap between the column dumper and the mixer when the components prevent a close fit.
This processor utilized a 60-degree dump angle because the application required that every particulate was added to the batch.
Personnel guarding featured on this column dumper is designed for visibility and access with safety relays that provide safe fork truck access.
Reliably Built Standard Features:
Processors should be able to focus on critical operations and not have to worry about auxiliary equipment. That's what Mepaco's CD1000 Column Dumper delivers; a Column Dumper that is heavily built, engineered for easy maintenance, built to strict sanitary design standards, and like our processing equipment solutions, modifiable to meet specific production requirements.
For more information, download our Column Dumper Flyer.
If you have a transport, incline or metering screw, these conditions are symptoms of a failing auger / screw.
Screw conveyors are important to keep product moving between processes, so pay close attention to these systems to stay ahead of maintenance issues.
After any major incident, contact Mepaco Services to inspect repair. Mepaco Services may be able to make some repairs on site. Welding, straightening, stainless finishing can be performed on site. However, re-machining a new piece, shaft or remanufacturing a paddle/ribbon, needs to be worked at the factory.
It is important to assess the life and stress of the augers to make sure that you do not experience down-time. Mepaco Services can provide audits, service contracts or emergency repair to help to prolong the life of screw conveyors.
In some cases, there is a particular event that causes agitator damage such as a shovel or fork falling into a piece of processing equipment. However, there are several other signs that determine when an agitator is failing:
Here are some causes of agitator damage:
Agitators are part of Mixers, Mixer-Cookers, and ThermaBlend Cookers. This equipment is the most important part of the processing line and must be maintained for maximum uptime. Other equipment, such as Metering Screws with Hoppers have leveling ribbons that may also need to be included in the list for agitator maintenance.
Currently, there is a 3-to-6-month lead time for a new agitator. In some cases, agitator repairs can be made at the customer site. Mepaco Services may be able to use a sleeve or secure welds to get the machine back up and running. Sometimes, it is possible to make repairs for temporary production while the new agitator is put on order.
Contact Parts and Service at 920-356-9900 for more information.
Mepaco’s Service Team is often called out on critical downtime situations. The goal for any food processor is to prevent these situations and if they are unavoidable, mitigate the time and cost associated with the breakdown. To start with, here are the top four calls that Mepaco Services receive for emergency support:
Broken Shafts Agitators are failing when they start to develop cracks or start to rub the tub side wall of the processing equipment. Agitators and shafts also fail when a tool or component drops into the equipment and damages the shaft or paddles. The damage is not always immediately apparent; a bent shaft may take months to start failing.
Gear Motors / Gear Boxes Oil leakage, hot temperatures and noise are all signs that gear motors or gear boxes may be failing. The motors and gear boxes commonly fail due to poor lubrication practices. They also may fail because of improper repair of the agitator and the gear motor and gear box may wear out prematurely.
Safety Devices Equipment is designed with safety modes and if the safety devices are damaged, whether accidental or environmental, the equipment will not operate.
Controls Internal programming errors, or physical damage to the HMI are also causes for emergency downtime.
In most instances, there are preventative measurements for processors to prevent downtime situations, but what can you do to mitigate the critical breakdown situation and get back online as soon as possible?
The Mepaco Parts and Service team strongly urges processing customers to consider a just-in-case planning mentally for parts replacement. There are long lead times on agitators, cylinders, motors, gear motors, safety devices and HMI panels.
After-event service calls or equipment-systems assessments are recommended to ensure production up-time and to alleviate safety risk. If you have questions, or to schedule service visit, call 920-356-9900 and ask for Mepaco Parts and Service.
There are various methods to heat and cool food product in cooking equipment. The application will dictate the best combination of methods and configurations ranging from stay-bolt or dimple jacket designs, to injected steam and thermal screw heating options. On equipment solutions that use a heating jacket, a dual zone design may add versatility to operations.
Heating zones can be engineered for two separate zones that heat or cool independently.
The first chamber forms the bottom of the cooker tub to the centerline of the agitator. This zone has independent controls and can be used for small batches. The upper chamber can be activated to heat when the batch size and application demand.
The best-use application for dual zones are test market runs, small recipe variations, and staged cooking. Zoned heating jackets provide savings in time, energy, and cost for partial batch production. Depending on the application, significant efficiencies can also be realized by starting the batch in the first zone and adding the second zone to finish the batch.
The advantage of dual zones heating jackets is versatility of batch cooking processes and significant savings in energy costs.
The tenured sales and engineering teams in the Mepaco group are driven and dedicated to solving cooking and processing problems for industrial food processing customers.
Case Story: What can happen when an agitator problem is ignored?
A high-volume pet food processor utilized a Mixer/Cooker in their operations which produced 45-minute batches. The application called for 28 RPM and mixing cold product at 35 – 45 degrees. During the process of loading different ingredients into the Mixer-Cooker, a Vmag buggy fell into the mixer, causing damage to the agitator.
The processor made repairs to the bent shaft and paddles and was able to get the Mixer-Cooker back online into full production.
Many processors assume that if the paddles do not rub the side of the tub, that the agitator has had a successful repair. But in many cases (and in this case), there was extensive damage and over time the shaft began to flex, causing the agitator to break. This failure completely stopped production.
There are a few choices to stay ahead of agitator care:
Preventative Maintenance: Partner with Mepaco Services to inspect agitators to ensure the shaft is straight and look for stress and other damage.
After Event Care: Processors may be able to fix the shift to continue production, but contract with Mepaco Services to inspect the shaft and straighten if necessary.
Most importantly, processors should avoid emergency maintenance, causing down-time and lost production.
It is not uncommon to have dropped tools into Mixers, so prepare for the event if it does happen. Consider an audit to assess the life of the agitator and consider ordering a replacement so you can have duplicity for uninterrupted down-time.
Delivery of agitator replacements are 3 – 6 months out due to the availability of stainless material. Mixers, Blenders and Grinders are the work horse of the processing system, so be sure that agitator care and component availability are part of the maintenance program.
Mepaco Services offer on-site audits, training, and service contracts as well as emergency repair.
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