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Sealing Cover – SICOMA MAO 3000/2000 – 0228G0008L1

More than just a passive lid, this heavy-duty flanged ring acts as the multi-functional "Logistics Station" within the shaft sealing assembly of SICOMA MAO 3000/2000 Twin Shaft Concrete Mixers. Manufactured from high-grade GGG50 Ductile Iron, the 0228G0008L1 has a critical role for maintaining the operational health of sicoma twin-shaft concrete mixers in ready-mix concrete batching plants.

 

Its primary role is to axially clamp the sealing stack (seals, O-rings) to activate compression. However, its most distinctive function is to channel grease or pressurized air (Air Purge) from external lines directly into the heart of the sealing labyrinth via its radial threaded ports. This ensures the entire seal group remains pressurized against concrete slurry ingress.

 

Technical snapshot:

 

  • Part code: 0228G0008L1
  • Application: SICOMA MAO 3000/2000 Sealing Group
  • Material: GGG50 Ductile Iron
  • Dimensions: ID 125 mm | OD 210 mm | Height 27 mm
  • Weight: ~2.4 kg
  • Feature: Integrated radial ports for Grease/Air Purge connection.
  • Design: Precision-machined seal grooves for static O-rings.

 

Abbreviations:

 

  • ID / OD: Inner Diameter / Outer Diameter

 

Why replacement matters?:

 

The cover manages both pressure and lubrication; hence, if the parts deteriorate, the following may occur:

 

  • Barrier Breach: A crack in the flange or broken port threads leads to air pressure loss right away. This lets concrete slurry break through the seal.
  • Clamping Failure: If the flange face becomes warped, it weakens the clamping force.
  • Consequence: Static O-rings leak, leading to rapid contamination of the bearing housing and costly downtime for the concrete mixer.

 

What to check before ordering:

 

This is a critical OEM component used in Sicoma Twin Shaft Concrete Mixer Spare parts inventories.

 

  • Specific Design: It usually integrates with repair kits like MIMOA2A2M/T and works alongside components like MOSAP8.
  • Identification Alert: The presence of radial ports is the defining feature that separates the 0228G0008L1 from similar-looking non-ported covers.
  • Recommendation: Checking the port configuration and mixer serial number is essential for correct identification (Drive vs. Non-Drive side variations exist).

 

Installation notes:

 

  • To install the cover, you may need:
    • VB009 Screw TCEI M10x30 / 8.8 / UNI 5931: 4 pcs.
    • GRA17 Grain M11.5 / L = 15 mm / UNI 5923: 2 pcs.
  • Cleanliness: Installation success depends on the surgical cleanliness of the flange seating surfaces.
  • Hardware: Secure using VB009 screws (M10x30) and GRA17 grub screws (M11.5).
  • Torque Strategy: Bolts must be torqued incrementally in a cross pattern to seat the flange against the MOSA13 or MOSAP10 support without stress.
  • System Test: Immediately after assembly, test the ports to ensure clear passage for air/grease and confirm the integrity of the O-rings.
  • For critical maintenance, installation should be performed by a qualified technician.
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