SPT-20 - Ion Sputter Coater

A simple to use, compact and cost-effective solution for sputter coating non-conductive specimens in SEM sample preparation. Features a user friendly touch screen interface, and supports multiple metal types.



COXEM manufactures and provides Scanning Electron Microscope (SEM), the most widely used platform technology in Nano- Metrology of Nano-scale. As a partner of Nano-fusion technology that changes industrial condition in 21 century, COXEM tries to provide the best quality service. SEM is the precision instrument, can be used for analyzing the shapes or constituents of microstructure materials in quantitative and qualitative. SEM is an essential instrument for development of basic science and an indispensable infra for technical innovation, used in chemistry, biology, material science as well as nano-materials and nano-biology.

CN Tech are the exclusive Coxem distributor for:

United Kingdom and Republic of Ireland.

Key Features

  • Digital ion coater
  • Vacuum. coating. One touch coating system up to the normal pressure
  • Stable coating with coating Current Feedback function
  • Can be used with various​ metal targets
  • Uses low-noise rotary pump

East to use

The COXEM SPT-20 Ion Sputter Coater is an easy to use, compact and cost-effective solution for sputter coating in scanning electron microscopy sample preparation. Non-conductive samples can be challenging to image in electron microscope. Electron build up will cause charging, which degrading image quality. A high quality sputter coater can remedy this, by coating non-conductive samples in a thin layer of conductive material.

Metal Sputtering

COXEM's SPT-20 Ion Coater provides metal sputtering for multiple types of metal, including Gold (Au) and Platinum (Pt). A stable coating is ensured with a built-in coating current feedback function.

Sputter coating is easy with the STP-20, which features a user friendly touch screen interface. Coating time can be configured via the interface, and commonly used coating settings can be saved as selectable recipes.


Contact Size

The SPT-20 has a compact size, and the included compact, low-noise rotary vane vacuum pump provides a fast vacuum for best coating results and efficiency. To ensure the best imaging results, an SPT-20 Sputter Coater an ideal accessory for a COXEM electron microscope.


Coxem Brochure

Coxem Brochure

If you need more information about the SPT-20 sputter coater from COXM, please contact the team at CN Tech today. We would be happy to answer any question you have on effective sample preparation, and provide more information about COXEM’s range of products. Contact us today!