Discontinuous Screen Changer (DSC)

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The Discontinuous Screen Changer (DSC) provides convenient, easy access melt filtration for polymer and hot melt adhesive batch operations. The design features a single filter pocket machined into a cross-bolt. Shifted offline only for momentary screen change, the easy-to-clean filter pocket has no hang-up areas and features a streamlined flow channel for fast material or color changes without cross-contamination. The self-sealing design has no mechanical parts to wear out or replace. Maintenance is reduced to periodic cleaning of the cross-bolt.

An optional patented seal insert allows the Discontinuous Screen Changer to filter materials with viscosities as low as 10 centipoise / 1800 MFI without risk of leakage. The design can also accommodate an integral divert for batch operation startup or changeover.

Specifications

Temperature °F [°C]	Up to 600 [315]
Max oper. pressure PSI [bar]	max. 7,500 [517]
Control zones (housing)	One (1)
Heating	Electric

Round Screen	Max. Throughput*		Screen Diameter		Filter Area		Heater	Weight
Model	Lbs/Hr	Kg/Hr	Inches	mm	Inches²	cm²	kW	lbs	kgs
DSC-058	375	170	2.3	58.3	4.1	26.7	2.0	150	68
DSC-076	650	295	3.0	76.3	7.1	45.7	4.0	267	121
DSC-096	1,000	455	3.8	96.3	11.3	72.8	4.0	266	121
DSC-116	1,500	680	4.6	116.3	16.5	106.2	4.0	415	188
DSC-125	1,800	910	4.9	125.3	19.1	123.3	6.0	477	216
DSC-148	2,400	1,090	5.8	148.3	26.8	172.7	12.0	1,325	601
DSC-176	3,500	1,590	6.9	176.3	37.8	244.1	12.0	1,335	606
DSC-200	4,500	2,040	7.9	200.4	48.9	315.4	24.0	2,025	919
DSC-230	6,000	2,720	9.1	230.3	64.6	416.5	24.0	2,912	1,321
DSC-250	8,000	3,630	9.9	250.3	76.3	492.0	24.0	3,250	1,597
* Throughput rates are estimates and are subject to material, viscosity, pressure, and filtration level.

Oval Screen	Max. Throughput*		Screen Diameter		Filter Area		Heater	Weight
Model	Lbs/Hr	Kg/Hr	Inches	mm	Inches²	cm²	kW	lbs	kgs
DSC-125/170	2,500	1,090	4.92 x 6.69	125 x 170	27.7	179.0	6.0	850	386
DSC-148/230	4,100	1,500	5.71 x 9.06	145 x 230	44.7	288.4	12.0	1,325	601
DSC-176/270	5,800	2,585	6.87 x 10.63	175 x 270	63.1	406.8	18.0	1,090	495
DSC-200/300	7,500	4,400	7.87 x 11.81	197 x 300	79.7	514.1	24.0	2,695	1,223
DSC-230/310	9,000	5,990	9.06 x 12.20	230 x 310	92.9	599.5	24.0	3,580	1,624
DSC-250/345	12,000	9,980	9.84 x 13.58	250 x 345	112.9	728.3	24.0	3,580	1,624
* Throughput rates are estimates and are subject to material, viscosity, pressure, and filtration level.

Features

Single filter pocket for batch operations
Self-sealing cross-bolt design – 5-year leak-free guarantee
Mechanical stop for accurate positioning
No cross-contamination for color changes
Large, robust hydraulic cylinder for added shift assurance
Hand-held pendant control
Safety guards / Fully guarded for operator safety / Safety guard with electrical interlock
Insulated top and bottom covers for operator safety
Field interchangeability of pistons, bolts, and housings