A hopper dryer is a type of drying equipment used in the plastic processing industry. It is designed to remove moisture from plastic resins or materials before they are processed in injection molding, extrusion, or blow molding machines. The hopper dryer consists of a drying chamber (hopper) where the plastic material is placed, and a heating element that circulates hot air to evaporate the moisture from the material. Once the material is adequately dried, it can be fed into the processing machine without the risk of defects caused by excessive moisture. Hopper dryers help improve the quality of plastic products and reduce production issues related to moisture content.

Advantages

Insulated double wall construction in CRS
Sight glass for checking material level
Slide gate to control material flow
Removable air distribution cone for uniform air distribution
Clean out door*
Loader mounting arrangement for automatic loading
Machine/floor mounted
Emergency drain out for quick change of batch
Quick openable latches for top cover removal

*Not available in model HP-30 and 65

Model	Volume (ltr)	Approximate Height (mm)			Diameter (mm)		Line Size (mm)	Leg Bracket Mounting Detail				Clean Out Door	Insulated Hopper Weight (Kg)
Model	Volume (ltr)	H	H1	H2	D1	D2	Line Size (mm)	E	F	G	Qty.	Clean Out Door	Insulated Hopper Weight (Kg)
HP-4	32	334	326	380	400	452	50	120	558	415	3	NO	23
HP-8	65	534	316	380	400	452	50	120	558	415	3	NO	42
HP-12	100	879	341	610	400	452	50	120	558	415	3	YES	60
HP-20	165	856	244	610	510	562	50-75	120	670	517	3	YES	88
HP-30	250	1256	244	560	510	562	75-100	120	670	517	3	YES	116
HP-40	360	1246	294	560	610	662	100	120	772	619	3	YES	132
HP-60	485	1554	282	570	610	662	100	120	772	619	3	YES	141
HP-80 DR	565	1694	306	520	660	712	100	90	822	669	4	YES	160
HP-80	700	1553	357	470	760	812	100	90	924	770	4	YES	188
HP-100	950	1937	303	445	810	862	100-150	90	975	820	4	YES	244
HP-120	1000	1565	425	395	915	967	100-150	90	1076	920	4	YES	260
HP-160	1330	2063	437	395	915	967	100-150	90	1076	920	4	YES	300
HP-200	1600	2490	410	410	915	967	100-150	90	1076	920	4	YES	340
HP-300	2500	2162	988	–	1220	1272	100-200	45	1370	N/A	8	YES	457
HP-400	4070	1964	1121	–	1524	1576	200-250	45	1669	N/A	8	YES	550

All data subject to change without notice

Frequently Asked Questions

What is the primary function of a Hopper Dryer in plastic processing?

A Hopper Dryer is designed to remove moisture from plastic resins or materials before they are processed in injection molding, extrusion, or blow molding machines. It ensures the material is adequately dried, preventing defects caused by excessive moisture.

What is the range of Hopper Dryers?

Hopper Dryers are available in a range from 6 Kg to 3600 Kg, with specialized models engineered for capacities above 3600 Kg.

What construction features contribute to the efficiency of Hopper Dryers?

Hopper Dryers feature insulated double-wall construction in CRS (Cold Rolled Steel), providing enhanced efficiency. They also include a sight glass for checking material levels, a slide gate for material flow control, and a removable air distribution cone for uniform air distribution.

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Frequently Asked Questions

What is the primary function of a Hopper Dryer in plastic processing?

What is the range of Hopper Dryers?

What construction features contribute to the efficiency of Hopper Dryers?

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