diff --git a/oregen-manager.lua b/oregen-manager.lua
index d8faded..1b5666b 100644
--- a/oregen-manager.lua
+++ b/oregen-manager.lua
@@ -68,6 +68,7 @@ local RECIPES = {
             {"minecraft:cobblestone", 2 * 64},
         },
         addr = CRUSHER_ADDR,
+        limit = 6,
     },
     ["minecraft:iron_nugget"] = {
         ingredients = {
@@ -115,6 +116,7 @@ local RECIPES = {
             {"minecraft:gravel", 2 * 64},
         },
         addr = CRUSHER_ADDR,
+        limit = 4,
     },
 }
 
@@ -209,6 +211,9 @@ end
 
 function craftRecipe (ticker, recipe, count)
     if count == nil then count = 1 end
+    if recipe.limit ~= nil then
+        count = math.min(count, recipe.limit)
+    end
     local createRequest
     createRequest = function (recipe, i)
         if i == nil then i = 1 end