Technical features

  • Name: Series K
  • Nominal reduction ratio: 70/100/120
  • Torque range: up to 1400Nm
  • Protection class: IP67

Description

What is Series K?

Series K gearboxes represent the first ones specifically studied for the bowls of dough mixers.Series K gearboxes are directly installed on the lower part of the mixer as they have bearings, shafts and a structure suitable for sustaining the loads and stress typical of these machines. The project aims to rationalise and simplify the installation of the bowl into the mixer, leaving the lower part clean and without moving elements.



Insertion

Professional mixers

The mixer is used to knead and mix the flour with water and other ingredients according to the type of dough to be obtained. They are available in different versions and models, and each has specific characteristics for different mixtures and sectors of application:

  • Fixed head and bowl
  • Tipper with removable bowl
  • Variable speed (machines with inverter)
  • Fixed double speed (double polarity motor)
  • Fixed speed
  • With timer and tank reversal


Loads

Max dynamic and static loads


Our gearboxes can support static loads (with non-operating gearbox) higher than the ones allowed in rated operating conditions and they can tolerate short-term dynamic overloads while operating (moving). The static load’s ratio RCS expresses the max torque applicable to the non-operating gearbox (generally imposed by the connected operating machine) and it is equal to the ratio between this static load and the max output one allowed . Likewise, the dynamic load’s ratio RCD expresses the ratio between the tolerable dynamic overloads when operating and: In general application, RCD usually expresses the size of the torque peaks, typical of three-phase asynchronous motors. These peaks can reach double/triple the value of the nominal torque so it is necessary to pay particular attention to reduction levels higher than 120, for which tolerance decreases. The table has been completed for systems powered at 1400 rpm with overloads of maximum 5 seconds.

Lubrication

3 types of oil

All parts of our gearboxes work in oil immersion and they are filled with synthetic lubricant ISO VG-320 studied to have unlimited duration with standard conditions. We recommend our clients to inform us about the planned installation position so we can optimize the filling based on the operating conditions. However our gearboxes are equipped with a filling/inspection cap to allow our clients to replace or add compatible oil based on their needs (e.g. exposure to low/high temperatures). Below are some suggested compatible oils:

SYNTHETIC OILS

Suggested for operations at a room temperature between -30°C / +50°C, non-compatible with other mineral oils and natural rubber gaskets:


  • Shell Tivela oil S 320
  • IP Telium oil VSF 320
  • Texaco Synlube CLP 320

MINERAL OILS

Suggested for operations at a room temperature between -5°C / +35°C, non-compatible with synthetic oils:


  • Shell Omala oil 220
  • IP Mellana oil 220
  • Mobil Mobilgear 630
  • Esso Spartan EP 220

OILS FOR TEMPERATURES OUT OF STANDARD

Suggested for operations at a room temperature between -40°C / +120°C:


  • Shell Aero fluid 41