DCT-T-300 Desk Carbon Coater and Thermal Evaporator

DCT-T-300 Desk Carbon Coater and Thermal Evaporator

The DCT-T-300 is a turbo-pumped carbon coater and thermal evaporator with a large chamber that is ideal for sample preparation for FE-SEM, EDS/WDS, TEM, EBSD analysis, and thin film applications.


Vac Coat

Vac Coat Limited is a designer and manufacturer of high-quality tailor-made Physical Vapour Deposition (PVD) and Vacuum Coating Systems with excellent customer care and after sale services. Equipped with more than 25 years’ experience in the vacuum and Thin Film deposition technologies. Their research and development team supported by academic scientists and qualified engineers are highly active to develop new designs and meet special inquiries received from clients. Designed and manufactured components by Vac Coat's engineering team meets high-quality standards. Their vacuum coating systems have been sold to many universities and research centres through distributors worldwide with very good references and feedback.

Key Features

  • High vacuum level with built-in turbo pump (Leybold)
  • Two-stage rotary vane backing pump (diaphragm or scroll pump)
  • Internal 500 W switching DC power supply for carbon fibre deposition (optional)
  • External 1.2 kW high-current DC power supply appropriate for metal evaporation and carbon rod deposition
  • Quartz crystal thickness monitor with precision of 1 nm and resolution of 1 Å
  • Automatic venting valve
  • Sample rotation, height, and tilt adjustable (for small sample holder stage)
  • Planetary sample holder (optional)
  • Two high-current electric feed-throughs for thermal source insertion
  • Movable thermal source holder with possible upward or downward deposition configurations
  • S-Clip sample holders on the thermal head for upward deposition
  • Electronic shutter
  • Easy-to-change specimen stages (rotation stage as standard)
  • Two-year warranty
  • CE conformity
  • Intuitive touch screen to control the coating process and rapid data input
  • User friendly software, updatable via network
  • Semi-full automatic coating process (optional)
  • Repeatable and programmable carbon coating process in the automatic mode
  • Pulsed or flash carbon fibre coating modes (optional)
  • Pulsed or ramped carbon rod coating modes (optional)
  • Automatic carbon fibre/rod/thermal deposition according to the set thickness value
  • Records and plots coating parameters graphs
  • Storing coating recipes for repeatable depositions


This high-vacuum coater offers high quality uniform carbon and metal films with fine grain sizes which are suitable for specimens that require high-resolution and high-quality characterisation.

DCT-T-300 with a 300 mm Dia. cylindrical chamber allows long-term deposition on samples with a diameter of up to 15 cm or several small specimens. The full-automatic programmable carbon coating process allows easy, precise, and repeatable performance.

Thermal evaporation of low melting point materials in two upward or downward directions, with adjustable distance of the thermal source to the substrate, is another advantageous feature of this coating machine.

Pulsed Carbon Fibre Evaporation

The desk high-vacuum carbon coating system is able to perform pulsed carbon fibre evaporation. Short pulses provide more controlled deposition and significantly reduces the amount of debris associated with traditional carbon deposition.

Carbon Rod Evaporation (optional)

This benchtop coating system could be equipped with a carbon rod head (optional). For this case, an external 0-100 A high current power supply should be used instead of the internal high current power supply which is designed for carbon fibre evaporation.

Thermal Evaporation

DCT-T-300 is equipped with a high-current power supply and low-voltage (Resistive) thermal evaporation platform suitable for a wide variety of thermal evaporation applications. The system allows controlled thermal evaporation of a wide range of materials onto the substrate. Different types of thermal evaporation sources (boat, basket, and coil) can be installed on the single thermal source holder.

Clean Vacuum of DCT-T-300

The vacuum chamber is Cylindrical Pyrex with 300 mm OD and 200 mm H. The DCT-T-300 is fitted with an internally mounted turbo molecular pump, backed by a 6 m3/h two-stage rotary vane pump (optional). It introduces clean vacuum without oil contamination which normally exists with an ordinary diffusion pump.

DCT-T-300 Touch Screen Control

DCT-T-300 is equipped with a 7” coloured touch screen with full automatic control utilising a user-friendly software to control and adjust the deposition process data. The vacuum and coating sequence information can be monitored as digital data or curves on the touch screen. The last 300 coatings information is saved on the history page and can be transferred to PC by a USB port on the device.

Sample Holder Stages of DCT-T-300

The DCT-T-300 can be equipped with different customised sample stage configurations depending on the user requirements. The standard sample rotation stages are rotatable with adjustable height and angle and easy to change. The rotary planetary sample stage is a good choice for uniform coating of porous specimens (optional). For deposition on large samples, a 6-inch rotatable (no incline adjustable) sample holder stage is recommended (optional).  


  • Turbo molecular pump with different pumping speeds (Optional):

Pumping Speed

90 l/s

250 l/s

350 l/s

Ultimate Pressure




  • Max. power consumption: 2 kW
  • Real-time plots of coating parameters

Detailed Features

Dimensions 580 × 500 × 630 mm (H × W × D)
Weight 46 Kg
Vacuum Chamber Dimension Borosilicate Glass, 300 mm Dia × 200 mm High
Display Screen 7” Diagonal (16:9) 800 × 480 High Colour- Graphic TFT- LCD
Data Transfer USB Port – For Transferring the data and graph to PC
Carbon Fibre Carbon fiber thread diameter: 0.8 mm (Thicker fibre is not recommended)
Carbon Rod Carbon rod diameter: 3.2 mm
Evaporator filament (boat/basket) Boat: Max. 1 mm thickness, Max. 8 mm width, and 30-65 mm length Basket: Single wire with 0.5-0.8 mm Dia.
Sample Holders Dimensions 60 mm Dia. can contain: 11 × 9.6 mm stubs or 6 × 12.7 mm stubs or 5 × 19 mm stubs or 4 × 25 mm stubs. 150 mm Dia. sample holder for large substrates.
Chamber’s Base Stainless Steel with Turbo Pump, Thickness Gauge, Shutter, Pressure Gauge, Sample Holder Inlet port
Chamber’s Lead Made of Aluminium/SST- Carbon head: contains carbon fibre (thread)/rod holder. Thermal head: contains evaporator electrode extensions and S-Clip sample holders
Thickness Sensor Thickness Sensor
Specification Crystal thickness gauge with sensor, Silver coated crystal quartz, oscillator
Resolution ±1 Angstrom
Accuracy ±1 nanometre
Vacuum Equipment Vacuum Equipment
Turbo Molecular Pump Pumping Speed of 90, 250, or 350 L/s (Leybold)
Backing Pump Two-stage rotary vane/diaphragm pump/scroll pump
Pressure Gauge Leybold (Ionivac model); Full Range
Final Vacuum <8×10-6 Torr (Depends on the turbo pump speed)
Process Process
Carbon Coating Pulsed and Flash mode carbon fibre coating/ Pulsed or Ramped carbon rod coating
Thermal Evaporation Thermal evaporation of small amounts of metal loaded in the boat/basket
Service and other Information Service and other Information
Gas Argon or Nitrogen to purge the chamber (Optional)
Electric Power Supply HC: 24 V, 20 A (Carbon fibre evaporation)
HC: 12 V, 100 A (Carbon rod and Thermal evaporation)
Control of Argon supply Electronic leak valve
Shutter 1 piece
Electrical Inlet Inlet: 220 - 240 V/ 8 - 10 A, 50/60 Hz; or 110 V, 10 - 12 A, 50/60 Hz


Deposition of carbon films for SEM, FE-SEM, EDX, and TEM sample preparation

Conductive layers

TEM grid plasma treatment for improved hydrophilicity (Optional)

TEM aperture cleaning using the thermal source holder



DCT-T-300 Brochure

View Brochure


Head and power supply for carbon rod evaporation

Plasma rod and high voltage power supply for plasma treatment

Quartz crystal sensor

Planetary sample rotation

Spare cylindrical vacuum glass chamber

Carbon fibre

Sealing gaskets

Source boats and baskets

Service Support

Comprehensive repairs and servicing

Annual Support Programs

Your metrology instrumentation is a major investment that is critical to your business operation and success. In today’s competitive climate, it is more important than ever to extend the functionality and peak performance of your metrology equipment years beyond the expiration of your factory warranty. CN Tech’s Support Programs will help ensure that your investment is protected, and that you and your instrument’s are always operating at peak performance.

With over 20 years’ experience servicing and repairing you can be assured that your system is in safe hands. The independent services we offer include system relocation, maintenance visits, parts and consumables, and break down interventions.

CN Tech’s Support Programs are an economical way to guarantee optimal working condition:

  • Annual Preventive Maintenance
  • Priority Technical Assistance
  • Preferred Parts Availability
  • On-Site User Training
  • Remote Diagnostics
  • No surprise repair expense and much more!

Support Contact Example

An example of our service and support contracts are shown below:


Metrology & Instrumentation Annual Support Programs 2022/23

CN Tech's Support Programs will help ensure that your investment is protected, and that you and your instrument’s are always operating at peak performance.

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