Quick-Clean Drawer Magnet

MPI’s Quick-Clean Drawer Magnets utilize a “Type A” magnetic circuit, to remove small to medium sized ferrous contaminant from dry powder or granular free-flowing product streams in gravity-fed vertical chutes. They employ 2-tiers of magnetic tubes for maximum magnetic filtration for protecting processing equipment, such as milling, extruding, and mixing machinery, while assuring high product quality standards with low maintenance.

Magnetic Tubes:
- MPI drawer magnets feature two tiers of high-intensity rare earth magnetic tubes that ensure the highest levels of magnetic filtration through direct product contact on the tubes, removing ferrous tramp metal from the product stream
Cleaning Cycle:
- Start: Unlatch the drawer. Pull the magnetic tubes through the stripper assembly to deposit the collected tramp metal from the magnetic tubes into the collection tray outside of the housing
- Finish: Push the magnetic tubes back through the stripper assembly into the housing (working position) and re-latch the drawer
Floating Stripper Seal:
- Adjusts to tube resulting in even wear and longer life between replacements
- Held in place by machined and fastened laminated stripper plate assembly
Stripper Latch:
- Releases stripper plate assembly once the plate has been clearly pulled away from the sealing plate
- Prevents accidental cleaning of the tubes in the product flow area, commonly caused when the stripper assembly is stuck to the sealing plate
Sani-TIGHT Seal™ Gasket:
- Type: Compression style “O-ring” cord gasket
- Sealing plate: ½” thick machined stainless plate
- 100% Positive seal, cannot be over-compressed
- Sanitary: Gasket can be removed and replaced for wash-down, no adhesive required
Rear Access Panel:
• For easy inspection and maintenance
Tramp Metal Collection Tray:
- Attachment: Removable cantilever tray
- Locking notch prevents the tray from vibrating loose
Grounding Strap:
- Provides a discharge path for static buildup
Self-Clean Model Available:
- Automated cleaning, easy inspection, and maintenance
Download Datasheet

Description

How the Quick-Clean Drawer Magnet Works:

Product flows through two rows of 1” diameter magnetic tubes, designed to create an extremely effective magnetic circuit. The rows of magnetic tubes are staggered to maximize magnetic filtration as the product flows through the housing. Tramp metal contaminants move to the underside of the magnetic tubes eliminating tramp metal “wash-off.”

After terminating the product flow, the magnetic tubes are pulled through non-metallic UHMW stripper assemblies, cleaning the magnetic tubes and depositing the metal contaminants outside the product stream into a collection tray.

Quick-Clean Drawer Magnet Options:

Cleaning Method:
- Manual clean
- Manual quick-clean (standard)
- Automated self-cleaning
- Continuous automated self-cleaning
Number of Tiers of Tubes:
- 100 Series with 1 tier of tubes
- 200 Series with 2 tiers of tubes (standard)
- 300 Series with 3 tiers of tubes (independent drawers required)
- 400 Series with 4 tiers of tubes (independent drawers required)
Material Construction:
- 304 Stainless Steel (standard)
- 316 Stainless Steel
Magnetic Tubes:
- Ceramic
- REN Rare Earth (standard)
- Hi-G high-performance Rare Earth
- TW Thin Wall high-performance Rare Earth
Magnetic Material Temperature:
- 400°F (204°C) @ 3.5 MGOe (ceramic)
- 176°F (80°C) @ 52+ MGOe (rare earth) (standard)
- 248°F (120°C) @ 48 MGOe (rare earth)
- 356°F (180°C) @ 38 MGOe (rare earth)
- 662°F (350°C) @ 30 MGOe (rare earth)
Tube Spacing:
- 2” horizontal and vertical spacing (standard)
- 3” (approx.) horizontal and vertical for increased flowability (recommended for products that bridge or choke) (adds 1” to OAH)
- 3” (approx.) horizontal only for increased flowability (available for height restrictions only)
- Custom configurations available
Tube Coatings:
- Stainless steel with no coating (standard)
- Synergistic Coating [reference datasheet Synergistic Coating]
Gasket Material:
- White silicon, FDA approved (standard)
- Buna, FDA approved
- Metal detectable blue silicon, FDA approved
Stripper Material:
- UHMW material (standard)
  - Maximum temperature: 180°F (82°C)
- Hydex material
  - Higher wear resistance compared to UHMW
  - Higher maximum temperature: 221°F (105°C)
- Metal Detectable Hydex
  - Requires approximately 25% more pull force to cycle magnet
- Teflon material
  - Higher wear resistance compared to UHMW
  - Higher maximum temperature: 500°F (260°C)
Position Switch: For unit closed confirmation or safety interlock
- Not included (standard)
- Proximity switch for unit closed confirmation (MPI Standard model and mount)
- Mechanical safety switch for unit closed confirmation and safety (MPI Standard model and mount)
- Switch mounting bracket only (customer supplied switch)
- Customer specified model
Independent Drawers: Tube tiers are split so they can be cleaned individually, reducing force require to cycle magnet. Required for sizes 14” to 18” square (maximum size) and recommended when metal detectable strippers are selected.
- Not included (standard)
- Included (adds 3” to OAH)
Transitions: Stainless steel transitions for easy installation
- Not included (standard)
- Inlet, outlet or both, configured as required for installation
Companion Flanges: Matching companion flanges for the customer to weld onto existing chute work for easy installation
- Not included (standard)
- Stainless steel companion flanges
- Carbon steel companion flanges
Housing Vibrator: Housing mounted vibrators improve product flowability over magnetic tubes
- Mounting holes only (standard)
- Pneumatic vibrator