As we are aware, the electronic tube plays a crucial role in high frequency preheating machines, where its quality holds immense importance. In the past, Toshiba was the renowned brand for electronic tubes used in high-frequency preheating machines. However, in March 2016, Canon acquired Toshiba's medical equipment division, which included their esteemed electronic tube.

Consequently, Canon Tube emerged as the new industry leader and became the primary supplier of tubes for high frequency preheating machines.

Presently, all newly purchased preheating machines from the Shunhao brand are equipped with the top-quality Canon Tube, ensuring optimal performance.

There are two models of vacuum tubes available for 10KW preheaters: the standard model 8T20RB and the more economical E3130. The 8T20RB, albeit slightly expensive, boasts a longer lifespan and superior quality. On the other hand, the E3130 offers a more affordable option but has a shorter lifespan of only 1.5 years.

Both models are compatible with 10KW preheaters, with the 8T20RB being larger and pricier, but offering a longer lifespan and higher capacity. In contrast, the E3130 is smaller, cheaper, but has a limited capacity and needs frequent replacements.

Considering the above, we recommend using the standard 8R69RB model, as it provides easier maintenance for your production needs.

If you are seeking a preheating machine that guarantees quality and reliability, Canon Tube is an ideal choice, and Shunhao machines from the brand will prove to be a sound investment.