preptechlogobanner250x46st Engineering Services

4412 Route 66, Apollo, PA  15613           Call: 888.447.PREP or 724.727.3439  FAX 724.727.2532

PrepTech’s Engineering Services include:

  • Cleaning plant and circuit design, specializing in the application of fine coal cleaning technology
  • Computer simulations of cleaning plant flow sheets
  • Bid specification packages, including balanced flow sheets, print layout, and P&IDs
  • Cleaning plant sampling program review and assistance with quality control programs
  • Engineering communications: literature reviews, proposals, routine reporting and preparation of final technical reports, editing services

PrepTech draws on its extensive background in cleaning plant design, operation, and project management to ensure success for each customer.

Cleaning Plant Design & Retrofits
For coal cleaning plant retrofits or new facilities, PrepTech can take you from initial sample characterization through construction completion.


  • Total sample analysis (ash, etc.)
  • Size analysis
  • Washability (or float/sink analysis)

Data Analysis

  • Account for equipment inefficiencies
  • Spreadsheets
  • Simulations (CoalPREP+)

Flowsheet Selection


Basis for Equipment Size



Specific Gravity

Amount of Reject

Surface Property

Amount of Product

Other (electrostatic, magnetic, etc.)

Stream Flow Rates



Dry vs. Wet




Bid Specification Package Preparation/Evaluation
Including drawings, sample contract, technical specifications for equipment and construction.

Performance Test Plan Development and Implementation
Plan and conduct plant performance tests, evaluate data, determine compliance with performance guarantees.

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