Technical Advice
Equipment and part identification, drawing review, material selection and manufacturing feasibility assessment.
Individual Part Guide
Impeller disc spacer function, dimensions, materials and applicable models
Installed between adjoining impeller discs to establish their axial positions and spacing. Check together with the discs, hubs, vertical shaft, axial fastening and complete layout drawing.
Installation and Function
Part of the disc system in a vertical disc stirred mill
Spacers maintain the designed disc spacing on the vertical shaft, preserving the original chamber energy distribution and transferring axial preload through the disc stack. Spacer length or end-face errors accumulate, affecting disc positions, coaxiality and maintenance assembly.
Key dimensions and identification details
Parameters to confirm before quotation and manufacture
- Inside diameter, outside diameter, effective length and end-face profile
- Shaft, hub, key/spline and locating register interfaces
- Spacer position numbers, quantities and assembly sequence
- End-face parallelism, coaxiality, runout and surface requirements
- Axial preload, fastening method and total disc stack height
Materials and Manufacturing
Confirm material and construction against the installed drawings
VXPmill uses removable discs and spacers. Determine spacer material independently of the polyurethane disc material: metal reinforcement, polyurethane coating or other construction must be confirmed against drawings, original parts and material testing.
Typical failure checks
Use wear locations to identify material, structural and assembly problems
- End-face wear changing disc spacing
- Wear and looseness at the bore or key/spline interface
- Insufficient axial preload causing impact and fretting
- Coating tears, delamination or process medium ingress
OEM and model identification
Model references identify installations; they do not establish common dimensions
| OEM / Series | Application and identification notes |
|---|---|
| Current FLS VXPmill product family | Confirm against disc configuration, spacer position and shaft system drawings |
| FLS VXP2500 | Documented installed model; confirm spacer quantities and lengths against project records |
| FLS VXP10000 | Published project model; the model alone does not determine spacer dimensions |
OEM Drawing References, Third-party Part Numbers and RFQs
Check part references together with position, dimensions, material and drawing revision
Provide the full model, serial number, OEM or third-party reference, spacer position, disc layout drawing, inside and outside diameters, length, end-face details, shaft interface, assembly sequence, used-part photographs, material tests and wear records.
Provide OEM Drawing References Check the installed model, BOM, position and drawing revision Send a Third-Party Part Number Match to the machine, part name, dimensions and material Provide Used Parts, Photographs or Drawings Begin dimensional assessment, material review and manufacturing confirmation