diff --git a/machines/common.lua b/machines/common.lua
index 17e2d5a..4102de2 100644
--- a/machines/common.lua
+++ b/machines/common.lua
@@ -378,7 +378,7 @@ function industrialtest.internal.registerMachine(config)
 			return inv, "src", mcl_util.select_stack(hop_inv, hop_list, inv, "src")
 		end
 		definition._mcl_hoppers_on_after_push=function(pos)
-			minetest.get_node_timer(pos):start(1.0)
+			minetest.get_node_timer(pos):start(industrialtest.updateDelay)
 		end
 	end
 	definition.groups._industrialtest_wrenchUnmountable=1
diff --git a/machines/iron_furnace.lua b/machines/iron_furnace.lua
index bf9c564..2676300 100644
--- a/machines/iron_furnace.lua
+++ b/machines/iron_furnace.lua
@@ -306,7 +306,7 @@ elseif industrialtest.mclAvailable then
 	definition._mcl_hoppers_on_try_pull = mcl_furnaces.hoppers_on_try_pull
 	definition._mcl_hoppers_on_try_push = mcl_furnaces.hoppers_on_try_push
 	definition._mcl_hoppers_on_after_push = function(pos)
-		minetest.get_node_timer(pos):start(1.0)
+		minetest.get_node_timer(pos):start(industrialtest.updateDelay)
 	end
 end
 minetest.register_node("industrialtest:iron_furnace",definition)