Flender gear units for plastics and rubber
In the manufacture of rubber and plastics, the great variety of materials requires very high precision of the processing machines.
Only then can the high expectations of customers regarding the final product be met. The high axial forces from the extrusion process must be absorbed. Our Flender gear units for plastics and rubber are mainly used in plants for plastic forming, and are characterized by high operational reliability and short delivery times.
The standard series comprises 2- and 3-stage helical or worm gear units with either integrated thrust bearings or thrust bearings fitted in front of the gear unit. Output torques from 6,300 to 173,000 Nm are possible.
Flender gear units for single screw extruders
Your benefits at a glance
Compact design
Low noise emission
Highest axial forces possible due to thrust bearings fitted in front of the gear unit
Highest operational reliability due to thrust bearing in gear unit oil chamber
Reduced delivery times
Applications
Wide range of applications, e.g. for:
Rubber for conveyor belts
Automobile tires
Plastic film/sheets, e.g. packaging film, carrier bags, tarpaulins for fields
Cling film, food storage bags
Packaging (Tetra-Pak)
Thermal insulation boards (polystyrene)
Rotor blades for wind turbines
Double screw extruder
FLENDER helical gear units for double-screw extruders with parallel drive shafts and the same direction of screw rotation are available in several sizes in the performance range between 200 and 35 000 Nm per shaft and for up to 20 000 kW. Flender gear units for plastics and rubber are used mainly in the manufacture of granulates and the refining of raw plastics as well as in the paint and lacquer industry and in the washing agent, foodstuff and animal-feed industries.
Flender gear units for double screw extruders are the best drive in all cases, because they are high-performing and reliable. Because of their long service life and their need for little maintenance work, they represent an economically attractive solution worldwide.
FLENDER has the greatest experience with gear units in the world market and provides customers with extremely high-performing products, as well as tried and tested engineering expertise and a full service. Flender gear units for plastics and rubber are also extremely standardised and allow customer-specific configurations without any problem. For instance center-distance modifications can be realised with very little construction effort and expense, so enabling cost-optimised customer-specific variants.
Flender gear units for double screw extruders
Double-screw extruder (synchronous)
To be able to absorb the very high torques and axial forces set up by the extrusion process, we have developed an extruder gear unit with a double power-splitting system and special thrust bearings. The bearing system can consist of up to eight thrust bearings layered one behind the other. Output torques of from 200 to 35,000 Nm and center distances between 18.3 and 140 mm can be realised. Furthermore we can offer customer-made solutions of up to 20,000 kW.
Your benefits at a glance
Gear unit with maximum power performance
Short delivery times thanks to consistent standardisation of the housings and interior parts
Center-distance modifications can be realised fast and with minimum engineering effort and expense.
Applications
Flender gear units for plastics and rubber with parallel drive shafts and the same direction of screw rotation are used mainly in the manufacture of granulates and the refining of raw plastics. Other areas of application include:
Paint and lacquer industry
Washing agent industry
Foodstuff industry (e.g. bread, pasta)
Animal-feed industry (dog, cat other animal food)
Double-screw extruder (contra-rotatory)
In the field of extrusion, as well as co-rotatory double-screw extruder gear units, FLENDER also offers contra-rotatory double-screw extruder gear units in vertical and horizontal versions. Thanks to consistent standardisation of the housings and interior component parts we can ensure short delivery times. Customer requirements can be quickly realised with minimum engineering effort and expense, regardless of the direction of screw rotation. Center distances between 60 and 140 mm and output torques between 5,000 and 60,000 Nm can be realised.
Your benefits at a glance
Absorption of very high torques and axial forces
Short delivery times for gear units with preferred center distances
Applications
Most versatile areas of application such as:
Pipes (waste-water pipework, floor pipework, ventilation pipework)
Profiles
Window frames
Sidings
Foils
Packing material
Heat-insulating boards
Rotor blades for wind turbines
Tyres
Assembly lines
Conveyor belts
Fittings for automotive industry
