Shredder Grates Supplier

When it comes to shredder grates, Qiming Machinery is a specialist supplier. Qiming Machinery enjoys a history of custom designing shredder grates.Our bottom grates provide optimal balance of strength, performance and weight efficiency. The wider profile translates into higher mechanical strength. As a result, you can push the geometry and create a greater open area for increased throughput.

The bottom grate ensures that shredded metal does not leave the shredding zone (hammermill) until shredded metal pieces are reduced to the desired size. The characteristics of the bottom grate’s openings are determined by shredded-metal specifications and operating parameters. The bottom grate sustains substantial abrasion and impacts from the rapidly moving metal inside the hammermill.


  • Single beam and double beam designs available for most shredders
  • Uniform holes for consistent density as the grates wear
  • Specialty lead-in, end, walk-across, solid, and half grates available
  • Double beam grates designed for strength to resist bowing and maintain effective shredding
  • End relief feature on double beam grates for easy install and removal
  • Double beam grates with staggered or inline hole patterns to maximize density and throughput
  • Specialty options available such as raised wear sections or ripper lugs

Material Selection

Different working conditions, Qiming Machinery chooses different materials to suit.


Manganese Shredder Grates

Qiming Machinery shredder grates are cast in high strength manganese formulations and custom engineered to maximize shred output. Specialized design characteristics of the shape and size of the pass-through holes and precise hammer-anvil angles optimize the final shred quality from a variety of materials.


Alloy Steel Shredder Grates

Qiming Machinery also supplies alloy steel (30CrNiMo8) to cast shredder grates. Under this material, shredder grates can get more hardness and span life.

Question 1: What kind of casting method for this grate?

Answer:  Sand Casting.


Question 2: Which material your foundry use for this grate?

Answer: Manganese steel, alloy steel, or other your inquiry.


Question 3: What is your grates span life?

Answer: Normally, our manganese steel shredder grates can crush 24,000 tons of metal recycling.


Question 4: What should I supply before making an order?

Answer: Material inquiry, drawings, quantity, and delivery time.


Question 5: Which reports your foundry supply after finish products?

Answer: Size report, material report, and other reports you want.


Question 6: Do your foundry supply other shredder wear parts?

Answer:  Of course. We also supply shredder hammer, shredder caps, and shredder anvil.