Astec Drum Comparison Chart

		UniDrum®	Double Barrel®	Double Barrel® X™	Double Barrel® XHR™

	*Max Recycle at 5% RAP Moisture **50% is achieved with patented V-Pac
	0%
	30%
	40%
	50%	X**	X	X
	65%				X
	150		X
	180		X
	200		X	X	X
	250		X	X	X
	300	X	X	X	X
	400	X	X	X	X
	500	X	X	X	X
	600	X	X	X	X
	Enhanced Materials	NO	NO	NO	YES
	Veiling End Drum Shell Material	Heat-Resistant Steel	Structural Steel	Structural Steel	Structural Steel
	Burner End Drum Shell Material	Heat-Resistant Steel	Heat-Resistant Steel	Heat-Resistant Steel	Stainless Steel
	Combustion Flighting Materials	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel
	Warm Mix System	Optional	Optional	Optional	Standard
	V-PAC	Optional	Optional	Optional	Standard
	Self-Cleaning Drum	N/A	YES	N/A	N/A
	Mixing Location	All Constituents Mixed Behind the Extended Burner Nose	All Constituents Mixed in Outer Shell of Double Barrel	Recycle, Baghouse Dust, and Additives Mixed in Outer Shell of Double Barrel; AC Added in External Mixer	Recycle, Baghouse Dust, and Additives Mixed in Outer Shell of Double Barrel; AC Added in External Mixer