Dip Spin machines made to order

Effective method of coating bulk small parts

Dip Spin is the easiest and most efficient method of applying a wide variety of standard coatings to many bulk small parts. For example, the latest generation of high performance anti-corrosion coatings which can be applied in bulk by the dip spin process offer significant advantages over traditional electroplating without the disadvantages and complications of hazardous waste disposal, Hydrogen embrittlement or the use of pickling or plating solutions. Also, properties can be achieved which are not achievable by plating.

The process is so efficient that unit costs can be extremely low.

Principle of the operation

Small parts contained in a perforated basket are immersed in a liquid coating. After a short dipping time excess material is drained off and the basket is then centrifuged at a preset speed to 'throw off excess material which runs back into the dip tank for re-use. After a set time the basket is braked to a stop and then (if required) recentrifuged in the opposite direction. This process complete, the basket is braked again and unloaded. All the parts have now been given an all over even coating with no material wastage. The process is often repeated to build up film thickness and eliminate any touchmarks.

Special features

DS machines are operated by pneumatics (safer than electricity particularly in a solvent environment) and controlled by an air logic control system on the manual models or an electronic PLC on the automatic models.

Special high torque, low consumption air motors have been introduced on the new DS range slashing energy consumption by over 50%.

Depending on the coatings used, we may advise that the machine or the unload section be housed in a booth to ensure good air movement over the entire operation.

The centrifuge baskets are robustly constructed and feature a dished base and perforated sides. A variety of mesh liners can be installed to enable coating of very small parts. Special purpose baskets can also be provided to improve distribution and eliminate dead spots as required.

The DS 250M is a small machine suitable for sample work or for small production batches possibly involving different colours or types of coating. It requires manual loading and unloading of the basket but still enjoys full automatic programmable control of the process parameters via an air logic control system. An electricity supply is not required to this machine.

The DS 375A is basically a smaller version of the DS 450A (photographed). Both models feature full automatic handling as standard, however, customised variants can be produced as required. Both models are solidly constructed machines, designed for continuous production. They will coat large volumes of work easily, cheaply and reliably. Both models are supplied with our unique CPLS constant level container with continuous pumping and filtration of the paint for a quality finish and consistent performance throughout the working day.

The paint container can be easily drawn out (on runners provided) and the pump system re-connected for continuous circulation whilst not in use. This facilitates easy colour changes and reduces settling out of the solids in the paint.

Control panel

Basic specifications

Typical cycle time (immediately repeatable with dual transfer system) would be approximately two minutes. The DS 450A can, therefore, coat up to 21 00kg of components per hour.

P&P Products Ltd persue a policy of continuous product development, therefore, product details and specification may differ from those appearing here

Examples of coatings which can be used with the DS machines include: