W-750-IS Automatic Grease Removal Device with Advanced Odor Protection


The Big Dipper W-750-IS Automatic Grease Removal Device is rated to the PDI-G 101, and ASME A112.14.3 and A112.14.4 standards and is capable of accepting up to a 75 GPM (4.73 l/s) flow while holding more than 168.95 Pounds (76.6 Kg) of grease.  The center module which comes with digital time control, heater assembly, and mechanized skimming assembly, automatically isolates trapped grease into grease collector for easy disposal.
  • Advanced Odor Protection* (patent-pending) keeps odors inside the tank and out of the kitchen.
  • Fully automatic self cleaning cycle. Removes collected grease & oils from tank without any operator assistance. Comes complete with digital control interface and Grease Collector.
  • Constructed of corrosion resistant materials suitable for installation in virtually any location. Attractive sanitary Stainless Steel exterior.
  • Integrated Motor/Grease Outlet/Heater/Lid enables a fast, do-it-yourself unit operation reversal.
  • Compact footprint.
  • Two (2) No-Hub Connectors provided.
*Advanced Odor Protection prevents odors from escaping through the lid of the Big Dipper but does not prevent odors related to the rest of the plumbing system including but not limited to: open floor drains, air gaps, external solids straining devices, improper venting, and odors generated elsewhere in the plumbing system.


Exterior: 304 Stainless Steel, Bright Finish
Interior: Rotationally Molded Polyethylene

Electrical:  115 VAC, 50/60 Hz, 1173 Watts (10.2 Amps)*

Maximum Inlet Flow Rate:  75 GPM (4.73 l/s)

Number of Skimming Wheels:  1

Skimming Rate: 9 Pounds Per Hour (4.08 Kg Per Hour)

Grease Retention Capacity:  168.95 Pounds (76.6 Kg)

Internal Solids Strainer Capacity:  3.7 Gallons (14 L)

Product Weight:  108 Pounds (48.9 Kg)

Thermaco Big Dipper Model No. W-750-IS, bright finish type 304 stainless steel exterior, rotationally molded polyethylene interior automatic self-cleaning grease and oil recovery separator(s) for floor mounted or partially recessed installation, rated to ASME A112.14.3 and/or PDI-G 101 standards at 75 gallons per minute (4.73 liters per second) peak flow with 168.95 Pounds (76.6 Kg) of grease capacity and including as an integral part of the unit, 4” (100 mm) inlet/outlet, 1 rotating gear oleophilic/hydrophobic skimming wheel assembly for automatic grease/oil removal, flow control device, self-regulating electric immersion heater with thermostatic control, 1” (25mm) vessel vent, integral gas trap, digital control for programmable operation, field reversible motor assembly and grease/oil sump outlet, quick release stainless steel lid clamps, fully removable polymer lid with magnetic lid tensioners, internal polymer/stainless steel strainer basket for collection of coarse solids, polymer wiper blade unit and a separate gasketted removable grease and oils collection container with carry handle and pouring spout. Electric assembly shall be tested to comply with pertinent sections of the Standards for Safety ANSI/UL 73 and/or ANSI/UL 1004. Electric motor equipped with overload protection. Two (2) no-hub connectors for plumbing connection provided.

*Electrical Variations

W-750-IS: 115V 50/60Hz, 1173 Watts (10.2 Amps)
W-750-IS-E: 230V 50/60Hz, 1173 Watts (5.1 Amps)

Unit may also be listed as W750IS, W-750IS, W750-IS, W-750, W750, 750-IS or 750IS














Icon Label Description Type Size Download
Big Dipper Brochure Big Dipper Brochure pdf 1.4 MB Download
Big Dipper Maintenance Poster Big Dipper Maintenance Poster pdf 690.9 KB Download
Manual for 51k Series Internal Strainer (IS) Units Models W-750-IS and W-1000-IS (Nov. 2020) Models W-750-IS and W-1000-IS (Including 230 VAC Units) pdf 1.3 MB Download
Manual for 51k Series Internal Strainer (IS) Units Models W-750-IS and W-1000-IS (Jan. 2021) Installation & Operation Instructions For Big Dipper 51k Series Internal Strainer (IS) Units Models W-750-IS and W-1000-IS (Including 230 VAC Units) pdf 1.3 MB Download
Big Dipper IS Models Insert About the Big Dipper IS Product Line pdf 1.3 MB Download

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