Closed Loop Drying System | Sterling 350-2100 CFM specs

2-5 The Closed Loop Drying System

ACS dryers force hot, dry air through the resin in the drying hopper, where the air picks up moisture from the material and is drawn back to the dryer.

In the dryer, moisture is stripped from the air by a desiccant bed. The dried process air is then re-heated and delivered back into the drying hopper to dry material again.

This system is a "closed loop", because ambient (outside) air is never introduced into the process air. The closed loop system is used by ACS because the process air is typically much drier than ambient air, even after carrying moisture out of the plastic resin. Recycling process air maintains drying efficiency at a consistently high level.

Figure 1: WD/SDA/CDA 350-2100 Dryer Specifications

Model	Amp		Dimensions			Hose	Shipping	Process	Regen	Desiccant
Number	Draw					Connection	Weight	Blower	Blower	Lbs./Bed
			(Inches)			(Inches)
	460-3-60	L		W	H	I.D.	Lbs.	Hp.	Hp.	Large	Small
350		56		56	73	4	1000	5	½	30	76
350-RT		56		56	73	4	1000	5	½	30	76
425		61		52	82	5	1100	7½	½	30	90
425-RT		61		52	82	5	1100	7½	½	30	90
500		63		66	94	5	1200	7½	¾	40	100
500-RT		63		66	94	5	1200	7½	¾	40	100
600		58		56	88	6	1450	10	¾	40	120
600-RT		58		56	88	6	1450	10	¾	40	120
700		59		66	93	6	1600	10	¾	40	135
700-RT		59		66	93	6	1600	10	¾	40	135
850	103	88		84	90	8		3	¾	120	120
850-RT	141	88		84	90	8		3	¾	120	120
1000	113	88		84	90	8		7½	¾	120	130
1000-RT	146	88		84	90	8		7½	¾	120	130
1250	138	88		84	90	8		7½	¾	120	180
1250-RT	194	88		84	90	8		7½	¾	120	180
1500	156	94		100	90	8		7½	¾	120	240
1500-RT	213	94		100	90	8		7½	¾	120	240
1800	179	94		100	90	8		10	¾	120	310
1800-RT	235	94		100	90	8		10	¾	120	310
2100	203	94		100	98	10		15	¾	120	360
2100-RT	278	94		100	98	10		15	¾	120	360

2-6 What is Desiccant?

Desiccant is a material which attracts and holds (absorbs) water from the air. The desiccant ACS dryers use is a synthetic crystalline metal aluminosilicate that is blended with a clay binder and formed into beads.

Absorbed water is driven from saturated desiccant by heating it to a high temperature (reducing the desiccant's capacity to hold water) and forcing air through it. This moisture removal process is called "regeneration".

2-7 The Process/Regeneration Cycle

ACS dryers have two desiccant beds. While one bed is on-line in the process air loop, the other is off-line being regenerated.

350-2100 cfm Dryers

Chapter 2: Functional Description

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350-2100 CFM specifications

The Sterling 350-2100 CFM is a high-performance ventilation system that effectively addresses the needs of various industrial and commercial applications. This versatile unit is designed to provide optimal air movement, offering flow rates spanning from 350 to 2100 cubic feet per minute (CFM). Its capabilities make it ideal for environments that require robust air circulation, such as warehouses, factories, and workshops.

One of the standout features of the Sterling 350-2100 CFM is its energy-efficient motor. The unit is equipped with a reliable and durable drive system, allowing for lower energy consumption while maintaining high performance. This not only reduces operational costs but also contributes to a greener footprint, making it an attractive option for businesses looking to enhance sustainability.

The ventilation system is designed with an advanced aerodynamic blade technology that maximizes airflow and minimizes noise levels. This allows for a more comfortable working environment by reducing the disruption typically associated with high-velocity air movement. Additionally, the integrated sound-dampening features ensure that it operates quietly, making it suitable for noise-sensitive areas.

The Sterling 350-2100 CFM also incorporates a user-friendly control panel, which allows for easy adjustments and monitoring of airflow levels. This system can be tailored to specific ventilation requirements, ensuring optimal performance in diverse settings. For added convenience, some models come with remote control capabilities, allowing operators to manage airflow from a distance.

Durability is a key characteristic of the Sterling 350-2100 CFM. The unit is constructed with high-grade materials that resist wear and tear, providing long-lasting service even in challenging environments. The weather-resistant design further enhances its suitability for outdoor applications.

Moreover, the system can be easily integrated with existing HVAC setups, providing flexibility and compatibility without extensive modifications. Maintenance is also simplified, with easily accessible components for routine checks and servicing.

In summary, the Sterling 350-2100 CFM ventilation system stands out for its combination of energy efficiency, quiet operation, and robust design. With its innovative technologies and user-friendly features, it meets the demands of modern industrial and commercial spaces while ensuring optimal air quality and comfort for occupants.