Muffin Monster Sewage Grinder pump and GRP Enclosure

Muffin Monster Sewage Grinder pump and GRP Enclosure

Round Below Ground, Sewage Below Ground, Sewage

Custom Delivery Required

Delivery price on application.

Request a quote
Product Description

Muffin Monster Sewage Grinder pump pre-assembled in a GRP Chamber

Designed to protect pumps and other equipment with its dual-shafted, slow speed and high torque, the grinder pump will shred tough solids that typically cause problems in the wastewater treatment proccess system. The Muffin Monster comes complete with Wipes Ready technology, which prevents materials from forming long strips and reweaving in the waster stream. Compact and efficient design, when space is at a premium, as it can fit into areas with limited space while still providing the necessary power for downstream protection. 



  • Pump Stations
  • Collection Systems
  • Headworks at Wastewater Treatment
  • Private facility discharge to municipal sewer system
  • Industrial Wet Waste grinding and maceration


  • Open Channel Configuration
  • Cutter chamber opening height of 185 mm
  • Hardened allow steel cutters (standard), 120 mm diameter
  • Ductile iron housing
  • Hardened alloy steel shafts, 50 mm hex
  • Mechanical seals with tungsten carbide faces, 6 bar workng pressure
  • Available with channel or wall mounted frame for easy installation



  • Flow rates up to 41,4 m3/hr
  • Low Operating costs - shorter pump run cycles and lower electrical cost
  • Automated monitoring and controls
  • Auto load sensing and reversals reduce interrupts and optimize performance
  • Frame options available, i.e Channel frames, wall frames, guide rails - Please ask if this is required
  • 1,5 kW gear motor standard with a 2,2 kW gear motor optional
  • Optional explosion proof and immersible electric motor
  • 25:1 reducer, cycloidal design
  • Muffin Monster controller - ensures maximum grinding ability with minimum stoppage

Muffin Monster Grinder Cutters

 Tooth Count  Thickness  Material
 7 - Tooth  11mm  Hardened Alloy Steel
 11 - Tooth  8 mm  Hardened Alloy Steel
 17 - Tooth Wipes Ready  11 mm  Hardened Alloy Steel

Replacement parts

Instead of replacing a worn grinder, there is the ability to buy a Monster Renew Unit instead. Sulzer provide a new factory-built grinder cartridge to replace the worn grider cartridge, which minimizes the operational downtime. Comes with a full factory warranty.

For more information regarding the Muffin Monster, please give our team a call on 01643 703358



Our shipping costs cover most of the UK - however, parts of England, Scottish Highlands and Islands including areas north of the Glasgow / Edinburgh border, Isle of Wight, Channel Islands, Isle of Man, Anglesey, Western Isles, Shetland Islands, Orkney Islands, Isles of Scilly, Northern Ireland and the Republic of Ireland may cost more.

Please call before ordering if the delivery postcode is listed below. There may be additional shipping costs. AB, BT, CA, CT, DD, DG, EH, FK,G, GY, IM, IV, JE, KA, KW, KY, LD, LL, ML, PA, PH, PO 30-41 (Isle of Wight), SA, SY, TD, TN, TR, ZE Southern Ireland

Our lead times should only be used as a guide and are subject to change.


Unless a hi-ab delivery has been booked at additional cost, it is the customer's responsibility to offload with suitable equipment on the day of delivery and a failed delivery may result in additional charges.

We recommend installers and/or plant hire & materials for install such as excavators, aggregates etc are not booked until you are in receipt of the goods. Tanks Direct cannot be held responsible for costs incurred due to unforeseen delays, please see our terms for more details.

If you have any questions regarding your delivery please contact the Sales Team on 01643 703358.

Returns Information

Customers may return items within 14 calendar days (as per our Terms & Conditions) - refer to 4.6 & 4.7. **

Please be aware that returning a tank can be complicated and expensive so please check that you are ordering the correct item (we suggest checking the dimensions very carefully).

If you wish to return goods, please complete the form on this page to provide further information.

Once your request is approved, a valid Returns Authorisation Number (RAN) will be issued to initiate the returns process along with information on how & where to return your order along with any costs involved.

Please DO NOT return any goods without this authorisation. Goods cannot be accepted without this.

Returns are not accepted at our Minehead Office, please wait until we contact you before returning any goods.

Please click here to request a return

Product Specification

  • Product Code: DPT
  • Shape: Round
  • Tank Use: Below Ground, Sewage

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