SD Series
SD Series Drying Hoppers
SD Series Drying Hoppers are engineered to provide consistent and efficient drying of material while offering fast, easy cleanout. SD Series Drying Hoppers are designed to promote even heat distribution and consistent mass flow of materials to ensure even drying of material throughout the drying hopper.
- Drying hopper design influences how process air moves through the material and how consistently resin travels through the drying system. Proper airflow and material movement help promote uniform drying throughout the material bed.
- Resin needs sufficient exposure to the required drying conditions before processing. Consistent material flow through the hopper helps provide more predictable residence time and reduces the likelihood of material leaving the hopper before it has been adequately dried.
- Uneven heat distribution can create inconsistent drying conditions within the hopper, potentially leaving some material exposed to different temperatures than others. Even heat distribution helps maintain more consistent drying conditions throughout the material.
- Drying hopper sizing should take into account material throughput, required drying time, bulk density, and production requirements. The goal is to provide enough hopper capacity for the material to remain under the required drying conditions before being processed.
- Easy access for cleanout helps processors remove residual material between production runs. This can reduce downtime during material changes and help minimize carryover from one material to another.
- Insulation helps limit heat loss from the hopper, allowing the drying system to maintain more stable internal temperatures. This can support efficient use of process heat while maintaining consistent drying conditions.
- Unique mass flow design
- Carbon steel construction with aluminum outer skin
(SD30 – SD425) - Integral welded carbon steel frame
- 2” (5 cm) premium fiberglass insulation
- Hinged access door with long sight glass (SD30 – SD425)
- Inlet/outlet tube stubs should be specified when ordering
- Manual slide gate
- Stainless steel construction inside and out (SD0.4 – SD0.85)
- Stainless steel construction on product contact surfaces (SD30 – SD425)
- Floor mount stand
- Gaylord fill stand
- Sensors, less controls: Single level RF-style sensor 115 or 230V; dual level RF-style sensor 115 or 230V; demand
level sensor 115V - Air-operated discharge slide gate, less controls
- Adapter to mount SRC 30/60 vacuum receiver onto SD30 hopper models
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