VERFAHRENSTECHNIK HÜBERS GMBH

The Systems comprise the entire casting process: Preparation of the material components resin and hardener (conveying, formulation, homogenization, degassing), production of the reactive mix and casting of the parts under vacuum/atmosphere. Any resin system can be processed, including fillers, and also with strongly disproportional mixing ratios.

The Systems comprise the entire casting process: Preparation of the material components resin and hardener (conveying, homogenization, degassing), production of the reactive mix and casting of the parts under vacuum/atmosphere. Any resin system can be processed, also with strongly disproportional mixing ratios.

With COMPACT you can open up attractive niches in the market — primarily in the areas of epoxy, polyester, polyurethane and silicone castings, e.g. of inductive components. With a unique combination of advantages and features, COMPACT is the cost-efficient, expandable compact solution for absolutely void-free parts: The way to start into perfect casting. With a unique combination of advantages and features, COMPACT is the cost-efficient, expandable compact solution for absolutely void-free parts: The way to start into perfect casting. The COMPACT-Series From HÜBERS — The Large-Scale Systems’ Know-How For Small And Medium Lot Production.

You manufacture sensitive electronic products, such as power semiconductors, diodes, diesel injectors and components for medical equipment. For casting purposes, you need systems that guarantee perfection and absolute freedom from voids with minimum casting quantities. Our Micro Casting Systems: Accuracy: Absolutely error-free casting of the smallest quantities; casting quality tolerance less than 0.01 g. Flexibility: Suitable for highly filled, abrasive casting resins under vacuum or atmosphere. Control: Patented dosing control unit for plant and process monitoring; glass cylinder design also allows direct observation of the preparation process.Compatibility: Modular design; cell construction makes it ideal for integration into existing production lines.

Silicone Processing Systems with Silicone Vacuum Treatment

The APG-process by HÜBERS permits short cycle times thanks to rapid gelation and demoulding with automatic opening and closing of the mould. During the gelling process, fresh material is supplied continuously to the mould under pressure in order to prevent cracks and voids and to compensate for the shrinkage of the material. The mould is held together by the clamping machine. The degassed material is injected into the APG mould directly from the static mixer. Shrinkage compensation is carried out by the HÜBERS metering pumps. One central mixing and metering system can serve several clamping machines. In this case each clamping machine has its own static mixer positioned directly in front of the mould and also has its own shrinkage compensation unit to maintain the pressure. The system is supplied via a ring line which requires no maintenance and is free of sedimentation. In principle the length of this line is insignificant.

Perfect closing - clamping machines for the APG technology from HÜBERS. HÜBERS' automatic clamping machines permit the productivity advantages of APG systems to be fully realized. The whole system as well as the mould are easily accessible. They can be tilted and rotated around various axes. This enables the moulds to be inserted by automatic lifting devices.

Preparation of the material components under vacuum and injection into an evacuated mold.

The casting lines comprise formulation, preparation, mixing, metering and casting of the parts. Also included is a pre-heating zone for the parts resp. molds prior to the casting devices as well as gelling and curing ovens systems. Fully automatic flow of the parts/workpieces through the entire process, from pre-heating to curing.

In-line conveyor ovens: Pallets pass through the oven one after the other. Automatic batch ovens: The oven is charged with pallets while kept at a temperature below the gelation temperature. After the last pallet has been loaded, the temperature cycle is started for the whole lot. The oven is emptied in a rapid process after the complete temperature profile has been run through. Stack ovens: Pallets are loaded into the oven. When each row has been filled, all the rows of pallets are lifted up by one level. When one row of pallets has reached the uppermost position of a temperature range, it is pushed into the next temperature zone and from here is lowered down in fixed time cycles and unloaded. Serpentine conveyor ovens: Pallets are loaded into the oven in fixed time cycles and pass through the individual temperature zones.