What is the mulching capacity of my Shredder Joe SDJ616? Your Shredder Joe SDJ616 is capable of mulching up to 55 gallons (208 L) of leaves per minute. Related articles How large is the cutting diameter of my Shredder Joe SDJ616? What size trimmer line does my Shredder Joe SDJ616 use? What is the heating element on my Cordless BBQ Lighter? What kind of maintenance does my Shredder Joe SDJ616 require? What type of extension cord should I use with my Shredder Joe SDJ616?