SPT-20 - Ion Economy 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.


Compact 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.

Product range

SPT-20 – Ion Economy Sputter Coater
Low Vacuum
DSR – Dedicated Sputter Coater
DSR-L – Sputter Coater for Large Samples (100mm)

DCR – Dedicated Carbon Coater (Fiber or Rod)
DCR-L – Carbon Coater for Large or Multiple Samples (100mm)

DSCR – Dual Purpose Sputter and Carbon Coater
DSCR-300 - Desk Sputter & Carbon Coater
High Vacuum
DST – Dedicated Sputter Coater
DST-L – Large Chamber, Dedicated Sputter Coater

DCT – Dedicated Carbon Coater (Fiber or Rod)
DCT-L – Large Chamber, Dedicated Carbon Coater (Fiber or Rod)

DSCT – Dual Purpose Sputter and Carbon Coater
DST1-300 – Magnetron Desk Sputter Coater


Coxem Brochure

Coxem Brochure


Target Materials Au, Pt, Pd, Cu, Ag
Target Size Φ50mm
Chamber Size 100mm
Ionisation Power 0 to 9 mA
Process Gas Air
Tilt-Rotate Stage N/A
Thickness Monitor N/A
Carbon Coating N/A
Coater Dimensions (mm) 420(W)x220(D)x230(H)
Shipping Weight 10 kg (coater) + 14 kg (pump)

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!