In 2018, the first Steno-injection machine, designated Si2, came onto the market. With this machine, Steno-injection found its way into European conservation workshops, allowing hundreds of objects of various kinds to be restored. From delicate detailed items to large structures, the Si2 was fully deployed. Thanks to our customers, we gained valuable experience, based on which the successor model, the Si3, has now been developed. The Si3 adopts the concept of the Si2, so at first glance, few differences can be seen. However, a lot has changed:

The Si3 features a new hydraulic system concept. It dispenses with rotating parts moving outside the housing and keeps all mechanical components running inside the housing in an oil bath. The new system operates smoother and quieter.
Both machines allow you to adjust the maximum injection pressure. The mechanical system of the Si2 shuts off at the highest setting between approximately 600 and 800 bar, whereas the hydraulic system of the Si3 shuts off at exactly 800 bar. In practice, this means noticeably higher performance at the same maximum pressure. The maximum pressure can be adjusted in increments. The new system operates with permanent overpressure, preventing air ingress. With the Si2, venting is required if necessary.
The frame of the machine has also been redesigned. Several details have been made more precise, more durable, and lighter. With its 7 kg, the Si3 weighs 1 kg less than the Si2.2. The redesigned heating box features a high-quality control panel and an electronic, acoustic-visual overpressure and oil level notification. The machine continues to operate with a Makita 18V battery system. The Makita DDF486 serves as the drive unit.