Substrate Technology
CONSTRUCTION EQUIPMENT & SUPPLIES
Phone:
+1 (815) 941-4800
+1 (815) 941-4600 (fax)
Address:
1384 Bungalow Rd.
Morris, Illinois, U.S.A.

Prep/Master Horseshoe Weights

5904 https://substratetechnology.com/wp-content/uploads/2026/07/PM-Weight-28-and-30.jpg
Brand: Substrate Technology, Inc.
Weight: 7.00lb
Dimensions: 8.00in x 8.00in x 8.00in

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Genuine horseshoe-designed replacement weights for the newer Prep/Master® 28 series and 30 series concrete grinders. Your Prep/Master comes with a full set of weights already — so when one is worn, damaged, or lost, these are the correct replacements to restore your machine to a complete set and proper grinding pressure. Sold individually, 40 lbs each. Genuine parts, made by the people who build the Prep/Master.

Call for pricing and availability, or request a quote — you’ll talk to a real surface-prep expert, not a call center.

Key Features

  • Horseshoe-designed replacement weights for the Newer Prep/Master® 28 series and 30 series grinders
  • 40 lbs each
  • Sold individually — order the number you need to replace
  • Genuine Prep/Master parts — made by Substrate Technology
  • The correct weight and fit for your machine

Keep Your Prep/Master Complete

Your newer Prep/Master 28 or 30 series is designed to run with a full set of weights, which provide the down-pressure that lets the diamonds cut. If one gets worn, damaged, or lost, replacing it restores your machine to a complete set and proper performance. Order individually — just the number you need to get back to a full set.

Horseshoe or Pocket — Which Weight Do You Need?

The Prep/Master uses two weight styles depending on your machine and its age:

  • Horseshoe Weights (this product) — for the newer-style 28 & 30 series
  • Pocket Weights — for the 24 & 44 series, and the older-style 28 & 30 series

Not sure which style your machine takes? Call us with your machine’s series and age and we’ll get you the right weights.

Genuine Prep/Master Parts

We manufacture the Prep/Master® — so when you need replacement weights or parts for your 28 or 30 series, you’re getting genuine components from the people who build the machine. We designed these weights for these grinders, and we’ll make sure you get exactly the right part.

Frequently Asked Questions

What machines do they fit? The NEWER Prep/Master 28 series and 30 series grinders.

How much does each weigh? 40 lbs each.

How are they sold? Individually — order the number you need to replace.

Are these replacements? Yes — your machine comes with a full set; these replace worn, damaged, or lost weights.

How do I know if I need horseshoe or pocket weights? Horseshoe weights fit the newer-style 28 & 30 series. If you have a 24 or 44 series, or an older-style 28 or 30 series, you need pocket weights. Call us if you’re not sure.

Order Your Prep/Master Horseshoe Weights Today

Call (815) 941-4800 x 1 or fill out our contact form. See our Prep/Master grinders, Prep/Master accessories, and diamond tooling.

Item# 421750118

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