diff --git a/core/src/io/anuke/mindustry/content/Blocks.java b/core/src/io/anuke/mindustry/content/Blocks.java
index 7a0ba1f47b..ad0abebdb1 100644
--- a/core/src/io/anuke/mindustry/content/Blocks.java
+++ b/core/src/io/anuke/mindustry/content/Blocks.java
@@ -1686,13 +1686,13 @@ public class Blocks implements ContentList{
         }};
 
         crawlerFactory = new UnitFactory("crawler-factory"){{
-            requirements(Category.units, ItemStack.with(Items.lead, 25, Items.silicon, 30));
+            requirements(Category.units, ItemStack.with(Items.lead, 45, Items.silicon, 30));
             type = UnitTypes.crawler;
-            produceTime = 250;
+            produceTime = 300;
             size = 2;
             maxSpawn = 8;
             consumes.power(0.4f);
-            consumes.items(new ItemStack(Items.coal, 5));
+            consumes.items(new ItemStack(Items.coal, 10));
         }};
 
         titanFactory = new UnitFactory("titan-factory"){{
diff --git a/core/src/io/anuke/mindustry/world/blocks/defense/Door.java b/core/src/io/anuke/mindustry/world/blocks/defense/Door.java
index 1653b57840..51bad094fe 100644
--- a/core/src/io/anuke/mindustry/world/blocks/defense/Door.java
+++ b/core/src/io/anuke/mindustry/world/blocks/defense/Door.java
@@ -20,6 +20,7 @@ import static io.anuke.mindustry.Vars.world;
 public class Door extends Wall{
     protected final Rectangle rect = new Rectangle();
 
+    protected int timerToggle = timers++;
     protected Effect openfx = Fx.dooropen;
     protected Effect closefx = Fx.doorclose;
 
@@ -81,7 +82,7 @@ public class Door extends Wall{
     public void tapped(Tile tile, Player player){
         DoorEntity entity = tile.entity();
 
-        if(Units.anyEntities(tile) && entity.open){
+        if((Units.anyEntities(tile) && entity.open) || !tile.entity.timer.get(timerToggle, 30f)){
             return;
         }