Stijma Triltechniek BV
About us
Stijma Triltechniek is a technical trading company specialized in vibration engines and related equipment for the bulk industry. Vibration is used to transport products or raw materials, dislodge product from silo or hopper walls, or screen, fluidize, or compact them.
Stijma designs, builds, and installs fully customized vibration systems and chutes, including control panels and on-site comissioning. We also supply accessories such as control valves, air preparation sets, and standalone control components.
We represent the NetterVibration and Lessine brands in the Netherlands and Flanders. NetterVibration is a global market leader in pneumatic, electric, and hydraulic vibrators. In addition to standard models, they offer stainless steel and ATEX-certified units developed for the chemical and pharmaceutical industries. Lessine is a Belgian company specialized in bulk engineering and the production of equipment for processing powders and granulates. They provide both customized solutions and turnkey systems for milling, mixing, drying, and conveying applications.
Products & services
Series NKK - Glueing Console
Instead of welding a mounting bracket for a vibrator or knocker onto a bunker, silo or pipe, the NKK series offers a glue-on solution. These consoles are bonded with an elastic adhesive directly to the wall of the container, whether flat, conical or cylindrical. The design ensures homogeneous and efficient transmission of vibration energy without causing damage, while the closed fit prevents dirt from accumulating behind the plate. <b>The NKK series can be assembled quickly and easily without welding expertise and without having to empty the container.</b> Since no merge process is required, the glued surface remains intact, making installation both safe and reliable.
Series PKL - Pneumatic Impactors
When processing bulk materials, knockers or impactors are used to improve material flow and effectively remove stubborn blockages such as adhesions and bridging. The pneumatic knockers from NetterVibration's PKL series deliver powerful, controlled hits without damaging silos or pipes. They replace manual “silo hammering” with rubber mallets: the same effect, but safe, efficient, and without deformation. <strong>Electric twin</strong> The long-established PKL 740 now has a brother that operates electrically, making it incredibly versatile and suitable for use almost anywhere, even as a mobile unit with a rechargeable battery, for example at silos in remote locations without a power supply. The compact control unit triggers one-off or regular pulses. It can also be integrated into modern control systems and thus offers expandable, process-dependent options, such as integration into the measurement of the fill level in silos to avoid unnecessary impacts.
Series DosyPack - Dosing Station
The DosyPack dosing stations are designed for fast and precise dosing of bulk materials. Gentle dosing is possible for especially sensitive products. The system consists of a conveyor mounted on blade springs under a silo and features a functional design and stainless steel construction. This makes it an ideal solution for the demands of the chemical, pharmaceutical and food processing industries. Pneumatic linear vibrators from the NTS and NTK series are recommended for operation. These durable vibrators operate reliably and don’t continue running after being switched off, immediately stopping product flow. The exact feed quantity is regulated by adjusting the frequency and amplitude of vibration, both of which can be adjusted independently.
Series PowerPack - Conveyor Systems
The PowerPack conveying system is guided by blade springs, with the conveyor trough welded, glued or bolted to the frame. The system is powered by a pneumatic linear vibrator from the NTK or NTS series, or, depending on the application, an electric external vibrator from the NEG or NEA series. Unlike many other conveyor systems, the frequency and amplitude of the PowerPack series can be controlled separately, which means it can be adjusted to your individual requirements. You choose which model best meets your needs based on the properties of the material being conveyed, as well as the requested frequency or amplitude. We also offer customised versions of the PowerPack, which can be combined with the DosyPack series. Furthermore, all components can be supplied separately if needed.
Series LineDrive – Conveyor Systems
With traditional vibration conveyor systems, the bulk material is “thrown” forward in a parabolic trajectory, which can damage or degrade the product. In contrast, the conveyor system of the series LineDrive uses a pneumatic linear drive that causes material to slide along the conveyor trough. The flow rate can be adapted to the specific properties of the material to be conveyed by controlling the air pressure. The coupling of several LineDrive drives allows the transfer of larger loads. In addition to our standard versions, the LineDrive series conveyor system can be customized to meet your specific needs.
Series NCB - Pneumatic Ball Vibrators
Pneumatic ball vibrators of the NCB series are used wherever bulk materials need to be moved. They are ideal for emptying bunkers and for preventing bridging, rat-holing and build-ups. When driving chutes, sieves or vibrating tables, they ensure a continuous material flow. A key advantage is their simple construction. The rotary vibration is generated by the high centrifugal force of a steel ball running on hardened, polished tracks. Frequency, and therefore centrifugal force, can be continuously adjusted by regulating the operating pressure.
Series NCT - Pneumatic Turbine Vibrators
Pneumatic turbine vibrators of the series NCT are particularly suitable for moving bulk materials. They can be used for emptying containers and big bags, driving chutes, sieves and vibrating tables and for the mechanical stimulation of processes. NCT pneumatic turbine vibrators combine high-frequency performance with quiet operation and exceptionally low air consumption, making them both powerful and efficient. The rotary vibration is produced by a turbine with eccentrically mounted unbalanced masses. The frequency and therefore the centrifugal force can be continuously regulated via the operating pressure.
Special editions: NTK 8 S and NTK 18 AL EL
Hygiene and explosion protection standards are particularly high for production processes in the food, pharmaceutical and chemical industries. With the NTK 8 S made of stainless steel and the NTK 18 AL EL made of aluminum, NetterVibration presents two new pneumatic piston vibrators from the NTK series that have been specifically developed for use in these environments. Depending on the application, they are available in ATEX-compliant and/or oil-free versions. The stainless steel housing is resistant to aggressive cleaning agents. Both NTKs can be used as drives for conveying and sieve troughs, as well as for cleaning and emptying of hoppers and other containers.
ePKL - The electric impactor
The proven PKL range now has an electric option! The interval impactors from the PKL series are particularly well-suited for dislodging stubborn deposits on hopper walls, pipes, and containers. They eliminate rat-holes and bridging formation and assist with the complete emptying of containers. The ePKL operates electrically, making it highly versatile and suitable for use almost anywhere, even as a mobile unit with a rechargeable battery, for example at silos in remote locations without a power supply. The compact control unit triggers one-off or regular pulses. It can also be integrated into modern control systems and thus offers expandable, process-dependent options, such as integration into the measurement of the fill level in silos to avoid unnecessary impacts.
