Homogeneous, efficient and gentle mixing of silicone compounds with different technologies:
- MDSE type for batch-mixing
- TRP type for continuous mixing
- Customer specific solutions
High-quality silicone by Fine Mesh Straining using roll-ex® gear pumps.
THE MODULAR SOLUTION FOR SILICONE PROCESSING
SILICONE SPECIFIC MACHINERY
MIXING OF SILICONE COMPOUND
BATCH MIXING OF SILICONE COMPOUND WITH THE CONICAL TWIN-SCREW EXTRUDER MDSE TYPE
Based on the conical twin-screw extruder, the MDSE is the integrated solution for batch-mixing, discharging and subsequent straining of high consistency silicone rubber with high filler content:
Two highly tapered screws are counterrotating and intermeshing. The body consists of a large open pressureless area designed as feed trough, as well as a closed area. Fillers can be integrated faster by a compression zone.
Discharge can be shaped as feed strips or blanks in a single step. Alternatively, the material can be passed onto a connected downstream device such as a gear pump or single-screw extruder for Fine Mesh Straining.
THE MDSE, CONICAL TWIN-SCREW EXTRUDER
For silicone compounding application.
Optional: with integrated roll-ex® gear pump for Fine Mesh Straining
BENEFITS OF MDSE SOLUTIONS
PROCESS-TECHNOLOGICAL BENEFITS:
- Efficient, homogeneous and highly automated mixing process of all components as solids, liquids, pastes, oils and fillers
- Special coatings for high abrasive compounds
- High cooling efficiency for temperature-sensitive mixing with a very short mixing time
- Easy cleaning due to good accessibility of all surfaces
- Process data and recipe management are directly connected to the customer’s MMS/MES/ERP-systems
- Further material handling e.g. different feeding solutions for ingredients, straining, discharging, packaging
- Clean room versions available
CONTINUOUS MIXING OF SILICONE COMPOUND WITH TRP TECHNOLOGY BY THE TRP TYPE
The Two-Roll Plasticiser (TRP) provides a gentle solution for the continuous mixing of silicone compounds. The system offers fully automated processing with excellent temperature control and gentle material treatment.
THE TWO-ROLL PLASTICISER (TRP) TECHNOLOGY
The fully automatic two roll process combines proven methods such as cracking, homogenisation and discharge, thus closing a gap in the processing of rework materials. The concept comprises three zones along the length of the roll, resulting in a continuous, reproducible technology.
MIXING OF SILICONE COMPOUND BY THE TRP TYPE
The Two-Roll Plasticiser (TRP) provides a gentle solution for the continuous mixing of silicone compounds. The fully automatic two roll process combines proven methods such as cracking, homogenisation and discharge in three zones along the length of the roll, resulting in a continuous, reproducible technology. The system offers fully automated processing with excellent temperature control and gentle material treatment.
BENEFITS OF TRP TECHNLOGY
PROCESS-TECHNOLOGICAL BENEFITS:
- Gentle and homogeneous continuous mixing process with very good temperature control
- Peripheral equipment enables the precise dosing of additives and chemicals
- Good access to the system components for cleaning or compound changes
- High level of work safety by fully enclosed process area
- Compact design
- By integration of roll-ex® gear pump, with an option of fine mesh straining, material can be precisely extruded in various shapes
CUSTOMER-SPECIFIC SOLUTIONS FOR MIXING OF SILICONE COMPOUND
UTH GmbH delivers complete, fully automated solutions for:
- Mixing
- Loading
- Discharge
- Straining
- Cooling
- Packing
BENEFITS OF CUSTOMER-SPECIFIC SOLUTIONS
PROCESS-TECHNOLOGICAL BENEFITS:
- High reachable throughputs by parallel process of mixing and straining
- Processing of even high abrasive compounds
- Process data and recipe management are directly connected to the customer’s MMS/MES/ERP-systems
FINE MESH STRAINING OF SILICONE COMPOUNDS
The roll-ex® gear pump extrusion system, developed by UTH, has become the global benchmark of Fine Mesh Straining for waste reduction and quality improvement. UTH GmbH is the pioneer in the field of development and manufacturing of gear pumps and gear extruders for silicone processing.
Quality problems can be counteracted by Fine Mesh Straining the silicone compounds. Small impurities and residues of 50-800 μm are easily removed and further homogenizing after the mixing is achieved to solve quality problems successfully.
The roll-ex® gear pump extrusion system developed by UTH has become the global benchmark of Fine Mesh Straining of rubber compound for waste reduction and compound quality improvement.
UTH GmbH is a leading pioneer in the development and manufacturing of gear pumps and gear extruders for rubber processing.
ROLL-EX® GEAR PUMP TECHNOLOGY
- Patented roll-ex® gear pump design with special features
- Optimised for straining application
- Modular concept for individual straining solutions
Ever since UTH GmbH was established in 1985, it has been providing innovative machinery and processing techniques for the tyre and rubber industries.
Functional strainer head system
- High-pressure design up to 500 bar / 7250 psi
- Quick screen change
- Easy cleaning
- Gentle material treatment
UTH FINE MESH STRAINING SYSTEMS OFFER A WIDE RANGE OF OPTIONS
The choice of the feeding unit for Fine Mesh Straining (TRF, TRF or DSE) for your process depends on your specific application and silicone compound. Each variant has ist own benefits.
FINE MESH STRAINING BY THE ROLL-EX® TRF TYPE
PROCESS-TECHNOLOGICAL BENEFITS
- Cold or warm feeding of strips
- Minimal dwell time
- Low-temperature straining process
- Low-shear feeding process
FINE MESH STRAINING BY THE ROLL-EX® SF TYPE
PROCESS-TECHNOLOGICAL BENEFITS:
- Cold feeding of strips
- Low-temperature straining process
- Good plasticising of compound
- Blending of batches
FINE MESH STRAINING BY THE ROLL-EX® DSE TYPE
PROCESS-TECHNOLOGICAL BENEFITS:
- Cold or warm feeding of slabs, blocks and batches in different shapes
- Low-temperature straining process
- Easy cleaning, easy compound change
- Good accessibility to all product-contacted surfaces
