Common Problems Associated with the Use and Manufacture of Lotion Pump Heads

Common Problems Associated with the Use and Manufacture of Lotion Pump Heads

Normally when you press down on the pump head of any lotion pump, the contents simply flow out of the nozzle while the pump head rebounds automatically, ready for the next cycle. Occasionally though you may have some difficulty with getting the fluid to come out of the nozzle, or the pump head may not rebound and as a result you will not be able to dispense again.

Stuck lotion pumps are a common frustration for people who use skin care products or any product which dispenses with a lotion pump.

Fortunately, many of the problems associated with a lotion pump can be fixed. There’s usually no need for your customers to feel frustrated with your packaging. With some DIY knowledge your product’s end users can definitely fix some of the simple problems they might face.

You can simply use this article as part of your buyer guide marketing collateral. Useful information like what we’ve compiled here adds even more value to your product.

Components of lotion pump

The most important components of lotion pump are

  • The piston (three-piece set)
  • Spring
  • Housing (the part of the barrel where the spring is installed) and other components.

The piston which relies on the expansion and contraction of the spring, continuously strokes in the housing to draw the lotion out of the bottle. The piston automatically retracts after each pump, creating a vacuum in the chamber that sucks more lotion from the bottle through the dip tube.

Problems Associated with Lotion Pump

Any component of the lotion pump that is damaged or mismatched can cause any of the following problems.

Some of the most common problems associated with the lotion pump are:

  • The pump head cannot rebound
  • The lotion pump cannot pump the lotion or leaks
  • The pump head is broken.

1.    Inability to rebound

If the pump fails to rebound, the pump may be locked. For example, many screw pumps will lock when you push the pump down completely and rotate it. You can unlock the lotion pump by rotating it back to the working position.

In some cases, the spring may be broken or slightly displaced. The spring is not easily accessible, and if it is broken, you will have to replace it. You can easily find a replacement in a hardware store. The spring is installed in the housing.

How to replace the spring

To replace the spring, you must first take the pump out of the lotion pump bottle, rinse the shaft and dry it. You should then be able to separate the different parts of the pump head because all of the parts are held together by friction.

Pull it out firmly under stable pressure, find the broken spring and replace it. You can now reassemble the pump head.

Note: If the spring is not accessible, please do not try to repair it, just replace it with a new lotion pump.

1.    Failure to pump out lotion or leakage

This is a common problem of lotion pumps. Luckily it is also usually easily resolved. When a lotion pump fails to pump out the contents of the bottle, or leaks the content, it is usually caused by the following.

  • Low quantity of lotion content.

The dip tube connected to the lotion pump is designed to reach the bottom of the bottle with a little gap. When the lotion level is almost finished and very low, the lotion cannot be absorbed.

If there is lotion, ensure the dip tube isn’t short or bent. If it is, lotion cannot be absorbed. If the dip tube is too short, you can replace it with a tube of suitable length.

  • Blocked nozzles and dip tubes

Some lotions easily become hard and agglomerate, causing the pump nozzle or dip tube to be blocked and unable to discharge.

You may have to periodically clear the pump nozzle or dip tube. Remove the lotion pump from the bottle, then disassemble the pump component, rinse it, and put the entire component(including the pump and tube) in hot water, or immerse it in vinegar, and leave it for 5 minutes or more.

If the spring is broken, this procedure cleans the pump and makes it easier to disassemble. Finally, use a toothpick, needle, or hairpin to remove the blockage.

  • Long springs or poor spring elasticity

The spring is too long, or the spring elasticity is not enough to pump out the lotion or pumping intermittently. Try to compress the spring evenly, cut off the excess part, or change a spring with a length and elasticity.

  • Broken lotion pumps.

If it cannot be repaired by the above methods, it is most likely that the lotion pump is broken. This may be due to damage to the internal seal. If the dip tube is damaged, the dip tube can be replaced.

In cases where the piston seal fails, do not try to repair it. Simply replace it with a new lotion pump.

2.    Broken or ruptured lotion pump heads

Excessive tightening during use can crack or break the pump head. The pump head of the screw pump can not be repaired. It should be replaced with a new lotion pump.

What you Should Consider Before Your Manufacturer Starts Making Lotion Pumps

We have already highlighted some of the common problems end users are likely to encounter when they use lotion pumps to dispense your products.

To avoid the above situations, purchasers and lotion pump manufacturers should consider the following during the production process:

1.     Ensure you have the right spring length

Different spring batches have different lengths and sizes. The effect of the length on the piston cannot be ignored. If it is short, the piston will not return in place, which will cause the head to remain depressed. The rebound will not function effectively, and the lotion cannot be pumped out.

2.     Adjust Spring Pressure Accordingly

Presently, there is no specific standard for spring elasticity. To save costs, many manufacturers purchase thick and thin springs directly from third parties and often do not adjust the spring pressure due to the size of the pump head.

The pressure of springs that are too is insufficient and cannot support the airtightness balance required for large liquid volumes. It will often cause difficulty in operating the pump head!

Your pump manufacturers should detect the spring pressure according to the size of the pump head and fine adjustment of the pump core and adjust the spring elasticity in time. This is an integral part of the product development process at Packbien.

3.     Airtightness inspection

Insufficient airtightness means that the parts of the lotion pump are loose and do not fit properly. This problem is usually caused by errors in mold debugging.

To prevent issues like this, during the production process, the mold should be regularly adjusted to correct these errors. Moreover, air-tightness testing should be conducted to ensure that the product meets up to airtightness quality requirements.

If the size of the top bead is too large, it will cause excessive wear of the pump core and reduce the service life of the pump head. If it is too small, the top bead cannot support the maintenance of the air-tightness of the pump core, resulting in difficulty in fluid discharge and low fluid volume, which causes the number of head presses to increase, and the spring is worn out too quickly!

4.     Control the quality of raw materials

Pump head rupture which includes micro-cracks in the production process of the pump head, squeezing and rupture of the pump head is caused by poor transportation conditions, excessive tightening and cracking during use, and the direct ejection of the screw pump head for the first time.

All the above problems are caused by adding excessive return material to the pump head material, which leads to an imbalance in the ratio of new and old raw materials, insufficient parts toughness, making the pump head too brittle! Manufacturers should strictly control the quality of raw materials.

How You Can Avoid Common Problems Associated with Lotion Pumps?

To avoid purchasing lotion pumps that are very vulnerable to the common problems we already discussed. Make sure that your manufacturer,

  • Has a standardized production process
  • Adopts a fully automated production process
  • Carefully inspect the products to ensure product integrity.
  • Consistently uses standard testing procedures

Packbien is a high-quality manufacturer of various high-quality pump head products (lotion pump, trigger sprayer, mist sprayer, foam pump, cap). We have a rigorous and reliable quality management system.

Our quality assurance process ensures that from raw material control, production, and processing, to finished product manufacturing, testing, storage and shipment, all undergo strict inspection and control.

Packbien relies on multiple complete automated production lines with automatic assembly, automatic inspection, and other functions to ensure product quality and productivity. And of course, we’re taking orders. We welcome all purchasing enquiries. Feel free to contact us, and a company representative will be in touch with you as soon as possible.

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