The screw type and the vortex type are expensive.

When comparing the price of screw and vortex (also known as vortex or scroll) equipment, it is not possible to generalize which is more expensive, because the price will be affected by many factors. These factors include, but are not limited to, the brand, model, power, performance, and market supply and demand of the equipment.

In general, different brands and models of screw and vortex equipment have their own price positioning. In some cases, screw-type equipment may be more expensive because of its complex process and higher manufacturing costs; while in other cases, vortex-type equipment may be more expensive because of advanced technology or materials.

Therefore, to accurately compare the prices of screw and vortex equipment, it is necessary to analyze the pricing of products in the market and consider the various factors mentioned above. It is recommended that you conduct sufficient market research before purchasing in order to choose the most suitable and cost-effective equipment for your needs.

In addition, from the perspective of technical terminology, "screw" and "scroll" are technical terms describing two different types of compressors or pumps. Screw compressors or pumps typically use a screw rotor to compress or pump a fluid, while scroll compressors or pumps employ a scroll-shaped compression chamber to perform the compression or pumping function.

When expressing, we can use a soft tone to explain these professional terms and concepts to help readers better understand and accept the relevant information. For example: "Screw and Vortex are two different types of technology that may differ in price and performance. Which is more expensive depends on your specific needs and the brand, model and other factors of the product you choose."