Signs You are Dealing with a Disreputable Heating Element Seller

The heating element industry is growing bigger every day as more and more manufacturers appear on the scene and business demands increase. In this kind of situation, it is sometimes challenging for businesses to find reliable electric heating element suppliers. This uncertainty can create huge problems as businesses need to be able to keep their machines up and running. After all, a machine that is down and that needs to be repaired or replaced is one that robs a company of its profits. So how do you know when you are dealing with a heating element seller who does not have your best interest in mind? Here are some telltale signs:

  • The supplier does not ask you for specifications: Each businesses needs are unique when it comes to purchasing cartridge heaters or any other heating element. This is because different companies make different products and use a variety of machines. A reputable supplier will know this and ask that you be specific about how you will be using the element you are shopping for. He will ask you in order to help the transaction go smoothly and so that you do not have to spend too much or damage your machinery.
  • The supplier exaggerates the industrial heater lifetime: How long a heating element will last depends on several factors such as the environment in which it will be used, how often the machine will be in use and how the component is cared for. Therefore, no supplier can guarantee how long a part will last.
  • Price point is too high: You should shop around for comparable parts to determine the average cost of the item you are seeking to purchase.
  • Follow-up is difficult: Customer service is a important part of every business. At Jobco Supply, we know that you could be purchasing the elements you desire from countless other sites. This is why we strive to make your after purchase experience quick and pleasant. If you have a problem after the sale, you can contact us and we will try to make it right.

In the end, choosing the right heating element vendor does not have to be challenging. We can provide you with powerful and efficient radiant heaters as well as a Watlow cartridge heater and our coil heaters. We also sell temperature sensors & accessories to meet your commercial requirements. Our manufacturers are the top names in the business including Watlow, Osram Slyvania, Chromalox, Next Thermal and others.

Frequently Asked Questions about Cartridge Heaters

In order to get the most utility from your cartridge heater it is best to know all you can about it. Otherwise, you may be wasting time, money and creating a hazard for employees. If, for example, the wrong termination for a particular application is chosen this may lead to failure. So that you derive the best performance from your cartridge heater and assure the parts we sell you have a long life, we present these frequently asked questions about this product.

  1. What can be done to prolong the service life of a cartridge heater?

We’ve touched on this subject before but it is one that bears repeating. Obviously, you can get the most value from any machine part you buy by knowing how to use it properly. Cartridge heaters generally fail due to improper fit, too much moisture, contamination, movement, improper selection, improper installation and high watt densities. The best way that you can ensure that these conditions are avoided is to discuss your specifications with the company you are buying your cartridge from and to read all materials that accompany it.

  1. How long will a cartridge heater last?

This of course depends a great deal on how much and how often it is used. The exact factors that go into determining the longevity of a cartridge healer are temperature, duty cycles, heater design, the operating environment and controlling methods.

  1. How do I determine the correct hole diameter size for my application?

For Watlow products you can use this link to determine the proper hole diameter size.cartridge heater

  1. What is a medium watt density cartridge heater?

A medium watt density cartridge heater has a continuous resistance spiral throughout the heater. This makes it more reliable than other kinds of heaters.

  1. How much do heaters cost?

This depends on the specifications required for each application. Most manufactures allow customers to configure heaters to meet the specific requirements for which they will be applied. You can also consult with us about your specific needs and we can go from there.

  1. What Cartridge Heater Solutions can Jobco Provide?

Jobco is the smart choice for heat management. We have a variety of heater types form the leading manufacturers in the business. This can help you to get the heater your business needs rather than a general use cartridge. Choosing just the right cartridge heaters and coil heaters for custom use will help dramatically improve the durability, product quality, responsiveness and cycle time of your industrial machines.

5 Ways to Prepare Your Plant for Cold Weather

Fall is here and winter is fast approaching. For facility managers this can be a challenging time of year as cold weather is often challenging in term of keeping equipment and personnel operating despite the lower temperatures. Thus, now is the time to prepare for what may be a chilly fall/winter season ahead. Consider the following recommendations to prepare your facility for fall and winter weather.

  • Anticipate power failures and other winter-related disasters: Blizzards and ice storms can develop at almost any time during the winter and can knock out power in your facility for hours or even days. Thus, now it is a good time to plan for such a contingency. Make sure that you have a functioning generator on hand and that you can make the switch over to emergency power seamlessly. Also, educate your workers about blackout procedures so that they know how to respond if harsh weather brings your plant to halt.
  • Inspect your HVAC system: It is crucial that your heating and ventilation system be in good condition during the winter. After all, freezing conditions in your warehouse can damage equipment, inventory and most importantly affect the health and safety of your employees.
  • Outside piping: If you operate a gas plant, make sure the outside pipes are drained prior to the arrival of freezing weather conditions. Also, if your business has oil tanks on hand, consider using an oil tank heater blanket. Oil tanks need to be heated to a certain temperature so that the contents can maintain pumping viscosity and to prevent crystalline precipitation.
  • Check your equipment: Check all equipment that needs a heating element in order to function properly. If you have a Watlow cartridge heater or other kind of heater, make sure it is functional and that you take precautions to prevent it from failing in cold weather.
  • Review your building envelope: The first line of defense against cold weather is the outside of your facility. Does your building contain poorly insulated doors or windows? Does your roof need replacing? Are drafts a constants problem in your facility? If the answer to any of these questions is “yes”, then you should start winterizing your building’s exterior now.

To wrap things up, there is no need for your plant to be less productive during the winter. Take the necessary precautions now to protect products, men and equipment so that you do not encounter an emergency situation that ends up shutting down your operations. Also, browse our site for cartridge, band and immersion heaters. Our products can help to improve your facility’s safety and efficiency.

Tip for Increasing Molding Machine Productivity

Any successful method of controlling the quality and the cost of a product depends on how well the machines that produce that product are maintained. There is no getting around this fact. There is also no getting around the fact that the more productive a machine is the greater its output can be. This is just as true with molding machines as it is with any other factory machine. Unfortunately, injection molding machines are often overlooked by many businesses. In this post we’ll attempt to look at some ways to increase the productivity of this vital machine and at the same time your bottom line.

  • Dedicate several hours each quarter for maintenance checkups: Preventive maintenance helps save you money by reducing machine down time. It is also an opportunity to assess whether or not upgrades are needed and whether or not your machine is working at peak efficiency. The manpower time you use on checking your molding machine could pay huge dividend in uninterrupted production time.
  • Train your people well on the use of your injection molding machines: Take advantage of every available opportunity to train the people who will be using the machine on its proper use. This will make them more productive, less likely to damage the machine and better able to report on its inefficiencies.coil heater
  • Inspect machine hoses on a weekly basis: A hose rupture could cause your machine to cut off. If it does you will not only lose time and potentially cause a back up in your products, you will also have to clean up afterwards. To check for problems, feel for weak spots or signs of crimping in your hoses. This means that a particular hose may be nearing the end of its life. Take replacing hoses as seriously as you would replacing coil heaters or any other machine component.
  • Verify that your incoming power lines are tight at machine’s main breaker: If the power lines leading to your molding machine is loose it could lead to a fire. You should therefore check the power lines and the heater circuit of the machine.

Injection molding of plastics is a complex application that sometimes requires many different kinds of heaters. We carry several kinds of heaters including our Watlow cartridge heater, nozzle heaters, immersion heaters, etc.

Why Product Packaging Matters

One of the many uses of cartridge heaters is in the packaging of goods. Specifically, the lamination process requires quality cartridge heaters that are not prone to heat loss, failure, etc. Read on to learn more about why proper product packaging is so essential for businesses and how our cartridge heaters can aid the manufacturing process.

Safety: The most important function of a properly packaged product is to protect its contents. This is important because a product’s package must protect it not only as it travels from the manufacturer to the retailer, but it must also prevents its damage while the product sits on retail shelves. Cartridge heaters and other machine components that fail or that are improperly maintained or installed are likely to cause products to be sealed incorrectly. This can result in damage to items are that contained within the package. Additionally, poorly packaged products may even lead consumers to believe that the product has been tampered with in some manner. Finally, damaged items can cause customers to lose trust in manufacturers and the retailers who sell them such goods. (Remember the effects of the Tylenol scare of 1982?”)

Appearance: A consumer’s decision on whether or not to purchase is greatly influenced on how the wrapping it came in looks. And although many factors play a part of a person’s decision on whether or not to purchase any time, products that are attractive packaged undeniably have greater appeal to consumers.

Differentiation: Packaging helps differentiate a company’s product from others. The logos, color scheme, company name and information about the product may all be adversely affected when a package is improperly sealed.

Packaging creates brand recognition: The people who designed the packaging consumers see when they buy a product put a great deal of time and thought into the process. Every minute detail of the logo, colors and text they use on these packages is designed so that consumers will recognize and want to purchase that brand.

In short, quality cartridge heaters are vital to the packaging of certain items ranging from food and beverage to personal hygiene products. This is why it is important for manufacturers to purchase high quality custom cartridge heaters for their packaging machines. We sell a variety of custom cartridge heaters and hot air heaters from leading manufacturers like Watlow, Chromalox, Marathon, NexThermal, Tempco and others.

Four Ways to Optimize Performance of your Cartridge Heater

Increasing the efficiency of any machine or machine component can be a bit like found money for businesses. A well performing machine component is less likely to break down over its lifetime saving companies money and as they say ‘a penny saved is a penny earned.’ However, when it comes to optimizing machine or machine component performance there is one difference that and finding money –maximizing machine component efficiency does not occur by accident. It takes an effort and conscientious use of the equipment in question. These details can help you effectively improve the efficiency of your cartridge heater.

  • Protect the main heating element: The entire heating element of the cartridge heater should be immersed in the heating medium. This will prevent the heating element from exceeding the heat rating for the device. Moreover, make sure that the lead wire protrudes from the heater. This part could otherwise be overheated and damaged which can lead to costly repair or the need for a replacement.
  • Be careful when selecting the right heater: Selecting the correct wattage is of utmost importance when selecting a cartridge heater. The results of making the right selection in this regard will prevent failure and increase the performance of your cartridge. You can use factors like the medium to be heated, the desired operating temperature and process variables such as flow rate to determine the watt density of your heater cartridge. Next, its wattage should match closely with the application’s actual load requirements to limit it from cycling too often. We can help with our selection of customer cartridge heaters. We realize that every business is different and that every business owner has different needs, production goals, etc.heater
  • Prevent excessive heater cycling: A Watlow cartridge heater is among the most reliable kind of heater on the market but it is not invincible. Avoid excessive temperature cycling to guarantee the reliability and longevity of this machine workhorse. Excessive heater cycling causes severe stress and oxidation of the resistance wires inside a heater. Solid state relays (SSRs) and SCR power controllers can be used to minimize heater element recycling. (A solid state relay is electronic switching device that switches on or off when a small external voltage is applied across its control terminals.)
  • Regularly clean the surface: Dirt, grease and grime should not be allowed to accumulate on your heater. This will reduce heat transfer performance and cause the unit to become damaged.

Different machines and different businesses have different thermal demands. Moreover, optimizing your machine components performance should never be an afterthought. Choose one of our heaters and be assured that their manufacturers have behind them a wealth of industry knowledge.

Why Cartridge Heaters Fail

One of the key ways to lower equipment costs for any business it to make sure that each piece of equipment last as long as possible. And when it comes to heating equipment this can be quite a challenge. Logic would suggest that equipment such as cartridge heaters would naturally have a short life due to their very nature. However, cartridge failure is not always due to age. There are other factors that can lead to their failure. Here we outline some of the most common reasons why this happens and offer our top tips on how to prevent cartridge heater failure in the future.

  • Improper fit: Perhaps the most common cause for cartridge heater failure of all is improper fit. If a heater cannot dissipate the heat to the outside of its sheath properly the temperature will rise until it ultimately fails. Eventually, this will cause a breakdown of wires and heater itself.
  • The watt density is too high: All cartridge heaters have a voltage at which they are designed to work. Outside of this voltage rating they may be ineffective or may fail eventually. So, if the applied voltage is too high then this will increase the watt density of the heating element. This will result in heat not being dissipated in the way that it should. The result can be that the unit fails to operate.
  • Frequent temperature cycling: Excessive temperature cycling places undue stress on cartridge heaters. This can cause them to expand and contract at a fast rate (i.e. every 30-60 seconds). Eventually, this will reduce the lifespan of your heating element.
  • Moisture and impurities: These elements can be drawn into your heating cartridge from the surrounding environment. These two elements can often cause a short circuit to occur which can lead to the heater failing.
  • High temperatures and excess movement: Cartridge heaters can also be damaged by two other external factors – high temperatures and excess movement. To give your heater an added level of protection, make sure that you supply it with a suitable level of insulation when it is mounted onto moving machinery. In other words, the heating element should be as stable as possible or at the very least protected from excess movement which can lead to an eventual breakdown.jobco

The takeaway from all this is that just because your cartridge heater has a difficult job to perform does not mean that it has to burn out quickly. When certain precautions are taken your Watlow cartridge heater can have a life that is as long as any other vital equipment you own. Moreover, our customer cartridge heaters are made to fit the needs of all kinds of businesses. Check out our models and the specs and you will see how they can be an asset to your company.

Convection vs. Radiant Heaters: Their Differences and How they Work

Whether most people know it or not, there are two kinds of heaters that can be purchased buy for either home or business use. There are also differences between the two kinds of space heaters. The kinds of heaters are radiant and convection heaters. They are both effective at warming spaces but they work in completely different ways. Here is a breakdown of the two kinds of heaters, how each functions and a look at the question of which is more effective.

Radiant Heat

Radiant heating works by creating infrared radiation. Further, the warmth from radiant heaters travels out in electromagnetic ways that are then absorbed by the objects that they run into. Campfires and fireplace are two examples of radiant heat. Finally, radiant heat is – unlike convection heating – directional and remains unaffected by the medium through which it travels. This kind of heating is growing in popularity throughout the market.

Convection Heat

One the other hand, convection heaters heat the air that circulates through a target area. Convection currents are drawn into and through the heating element – usually by a fan – and this in turn heats up the entire room by raising its temperature. In other words, it is not directional in that it heats spaces indirectly. The kinds of convection heat are oil, ceramic, water, fan heaters, and furnaces.

What’s more Effective?coil heater

As we said, both can heat spaces quite effectively. Convection heaters warm spaces slower than do radiant heaters but they provide heat over a longer period of time and over larger areas. Radiant heaters heat up spaces too but usually warm smaller areas as compared to convection heaters. As it so happens, some people use a combination of the two in order to get the best features of each technology.

So, which one you use depends on your business needs. We can provide you with powerful and efficient radiant heaters as well as a Watlow cartridge heater and our coil heaters. We also sell temperature sensors & accessories to meet your commercial requirements. Our manufacturers are the top names in the business including Watlow, Osram Slyvania, Chromalox, Next Thermal and others.

Spotlight on Watlow Electric Manufacturing Company: Powered by Possibility

One of the manufacturers we are proudest to be associated with is Watlow Electric Manufacturing Co. We sell their high quality products to the industrial sector with pride and confidence that clients will receive machine and machine parts that will perform at or above their expectations. We admire the company for their constant efforts at perfection in the products they produce. But innovation and excellence such as that achieved by Watlow Electric Manufacturing Company does not happen overnight nor is their story a simple one. Here is a little about one of our manufacturers that we hope will inspire your company as you peruse our products such as our hot air heater and oil tank heater blanket.


Watlow is a family owned business that began back in 1922 when its founder rented a space on the second floor of a machine shop and began making electric heating elements for the shoe company. The St. Louis businessman/inventor – Louis Desloge Sr. – eventually began selling his products locally then expanded beyond the local market during the 1930s and 1940s. HIs first innovation came with the swaged cartridge heater which improved heat transfer efficiency greatly. This innovation and his company’s hard work formed the basis of him expanding to a 185,000 square foot facility eventually.

Whereas some companies rest for some time on one accomplishment, innovations continued throughout the next several decades for the Watlow Company. For example, it introduced the first thermocouple product back in the 1970s. Thermocouples have the ability to accurately measure extreme temperatures, with ranges from 270 to 2,500 degrees Celsius, and errors within 0.5 to 2 degrees Celsius and are used in gas appliances such as boilers, water heaters, and ovens.watlow

Today and Tomorrow

Today, the company continues to innovate with products such as its new F4T with INTUITION, a touch-screen controller that combines the functions of several devices into one process control. It also continues to provide products to numerous industries, including semiconductor processing, environmental chambers, energy processes, diesel emissions, medical and foodservice equipment. Moreover,, Watlow holds more than 450 patents and currently employees more than 2,000 employees who work in many parts of the world.

Finally, we know that your company will be well served by any of the Watlow products we sell on our site as your company makes its own push towards excellence and innovation.

4 Machine Safety Tips To Prevent Workplace Injuries or Worse

The Watlow cartridge heater, hot air heater, ceramic heater and other machine components that we sell help with the smooth operation of a number of machines across a wide variety of industries. But when equipment is mishandled, accidents and even deaths can occur. Listed below are 4 general workplace safety tips to always keep in mind for ensuring machine safety in the workplace and for ensuring that our heaters help you meet your industrial goals.

  • Never have your people operate machinery for which they have not been trained: Be sure that anyone who handles the machinery in question has received some sort of training or tutorial. This will help ensure that the machine is more productive and that the person operating it is safe from serious injury or even death. Some of the machines that hold our heaters can cause great damage including burns to operators and even people who happen to be nearby.
  • Never distract persons who are operating industrial machinery: Operating certain kinds of machines for which our heaters are integrated requires great focus. If that focus is broken the result can result in injury or a fatality. Moreover, you will want to be sure as the operator to stay away from certain moving parts that may capture clothing or limbs or that may cause burns to occur.
  • Constantly have faulty or failing equipment serviced: A machine that is not performing up to specs can not only cause your company to be less productive, it can also pose danger to employees resulting in regulatory penalties, lawsuits and time
  • Have your employees wear the proper equipment: If goggles are required make sure that employees wear them. If other equipment is needed to safely operate certain machinery make sure that all operators know to wear this equipment at all times while operating machines.

Finally, no one wants an industrial accident to occur. Our heaters are designed to create intense heat. It is therefore important that you take extraordinary caution with operating the machines and servicing the heaters that are installed in those machines.