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JWC Environmental's family of wastewater, stormwater and sewage treatment products are legendary for quality and reliability – including the Muffin Monster and Channel Monster sewage grinders, and the Auger Monster, Screenings Washer Monster and Monster Separation Systems, which incorporate a fine screen or band screen with superior sewage screening conditioning.

Brochure: Muffin Monster Manhole   Channel Monster Cuts Maintenance Costs And Protects Pumps In Santa Ana    
Brochure: Muffin Monster Manhole   Channel Monster Cuts Maintenance Costs And Protects Pumps In Santa Ana    


Monster Wash Press Monster Wash Press

JWC Environmental’s Monster Wash Press (MWP) cleans and compacts the discharge from headworks screens, separating water and organics from the solids.  It features a Muffin Monster® grinder to pre-condition screenings before entering the Monster Wash Press.  The grinder breaks open rags, plastics and trash to promote washing and removal of soft organics.  The patent-pending paddle rotor in the active wash zone agitates the material to enhance water penetration throughout the debris for even better removal of the organics from the solids.  Organics are washed back into the wastewater treatment process and the solids are compacted into a dry, less odorous solid plug.  The Monster Wash Press is designed for easy maintenance.  The rotor and field replaceable screen can be removed via the top of the unit, minimizing the clearance space needed around the unit during maintenance.  A grinderless version of the Monster Wash Press is also available.

Monster Metal™ Monster Metal™

Monster Metal™ is an abrasion and corrosion resistant cutter alloy. It is a steel alloy with the perfect balance of carbon for strength with a Rockwell HRc of 55-60 and chromium for corrosion resistance typically associated with stainless steel. Monster Metal is available on 30004T and 30005 Muffin Monsters®, CMD-XD2.0 and CDDXD2.0 Channel Monsters® and the 3-HYDRO-IX and 3-HYDRO-C.   Monster Metal offers a longer life with at least double the life of typical industry cutters paired with a 5-year extended limited warranty.

A New Monster to Get Cleaner Screenings A New Monster to Get Cleaner Screenings

The Monster Wash Press is JWC Environmental’s latest generation of washer compactors. The Monster Wash Press processes screenings to separate water and organics from the solids. The result is a clean, dry, light and compact discharge which reduces the amount of waste to be dumped, ultimately saving treatment facilities time and money.

There’s Money In That Sludge! There’s Money In That Sludge!

From waste to wealth
More and more wastewater treatment plants are trying to find ways to reuse their valuable sludge through anaerobic digestion as well as lower their overall carbon footprint. With our recent acquisition of IPEC we now have world class solutions to meet your sludge thickening needs.

Wipes Ready Technology Wipes Ready Technology

Are you wipes ready?
Wipes and rags are clogging pumps and damaging wastewater treatment systems. NEW Wipes Ready technologies from JWC will keep your systems running efficiently.

10K Series Muffin Monster 10K Series Muffin Monster

The 10K Series Muffin Monster is a compact grinder, tough on solids in sludge and sewage applications. It fits into areas with limited space requirements while still providing the necessary power for downstream protection. This simplified design makes it a best cost solution to your sludge and sewage pumping problems.

7 SHRED Grinder 7 SHRED Grinder

JWC Environmental is proud to introduce the new 7 SHRED grinder, built to fulfill the demands of product reduction for industrial applications such as in petroleum, agriculture, food processing, municipal solid waste and more.

Vertical Auger Monster Model AGV Vertical Auger Monster Model AGV

The Auger Monster model AGV safely and easily screens, cleans and conveys rags and debris straight up and out of the sewer system. This gives collection system managers an affordable new way to remove rags before they clog sewage pumps, eliminating the time and expense wasted on de-ragging pumps.

Finescreen Monster® Finescreen Monster®

The Finescreen Monster is part of the Monster Separation Systems® line of screens.  The Monster Separation System is a complete, high-performance system of screens and screening processing equipment that provides high capture rate of wastewater solids and more efficient washing and compacting, resulting in a discharge that is remarkably clean and ready for disposal. The more unwanted solids removed at the headworks of your treatment plant, the better the whole facility will run.

Bandscreen Monster® Bandscreen Monster®

In today's modern wastewater treatment plants, meeting high standards in effluent quality, cost efficiency and odor control is a must. To meet these higher standards, JWC introduces the Bandscreen Monster, a member of the Monster Separation System line of high performance screens.

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JWC Environmental

2850 S. Red Hill Ave., Suite 125

Santa Ana, CA 92705


Phone: 714.428.4660

Fax: (949) 833-8858

Contact: Kailey Habermann


  • Technology Tips – Grinders For Sewage Sludge Systems
    Technology Tips – Grinders For Sewage Sludge Systems

    Ever since its invention in 1973 the Muffin Monster two-shafted grinder has been a fixture in wastewater treatment plants sewage sludge systems.  The industry has seen significant changes since then but the need for grinders has persisted and evolved with the requirements of plant operators and engineers.

  • Monster Keeps Wipes At Bay In Billerica, MA
    Monster Keeps Wipes At Bay In Billerica, MA

    Billerica, Massachusetts embodies an ideal American suburb – picturesque streets, quaint houses, inviting storefronts and a central city square perfect for socializing with fellow neighbors and visitors. Located just 50 minutes north of Boston, Billerica is also a prime spot for young families who want the convenience of a close-by city with the atmosphere of a restful community.

  • Protecting The Process: Pretreatment For Membrane Bioreactors
    Protecting The Process: Pretreatment For Membrane Bioreactors

    Toward the end of the 1980s, Professor Kazuo Yamamoto from Tokyo University gave a lecture to a skeptical crowd. His topic? Immersed hollow fiber membrane bioreactors. Since the day that first audience listened to the possibilities of MBRs, much work has been done to make membrane bioreactors a common step in the wastewater treatment process.  

  • The Ultimate DAF System Design Buyer’s Guide: Part 4
    The Ultimate DAF System Design Buyer’s Guide: Part 4

    At face value DAF systems are pretty much like any other piece of industrial equipment – they’re an investment that you only want to make once. And in the same vane, some DAF System designs are simply better than others. With this guide, hopefully you’ve learned which DAF System design elements separate one DAF unit from another.

  • The Ultimate DAF System Design Buyer’s Guide: Part 3
    The Ultimate DAF System Design Buyer’s Guide: Part 3

    Make sure you’ve read the Ultimate DAF System Design Buyer’s Guide Parts 1 & 2 before starting here.

  • The Ultimate DAF System Design Buyer’s Guide: Part 2
    The Ultimate DAF System Design Buyer’s Guide: Part 2

    When you buy a DAF system, you want something that is going to hold up in a harsh environment. You’re going to use the thing for the foreseeable future and the last thing you want is something you have to replace because it didn’t hold up.  DAF System design decisions matter!

More Case Studies and Articles


Muffin Monster — Monsters Work Here!

JWC Environmental is a global leader in solids reduction, separation and removal systems for customers in a broad range of municipal and industrial applications. Wastewater treatment plants, food processors, oil refineries, waste to energy producers, consumer goods manufacturers, airports, correctional facilities and agricultural operations are just some of the many areas that have relied on JWC’s technologies for over 40 years to run efficient and compliant operations.

JWC Environmental offers a wide range of products to target unique commercial and industrial challenges. Our legendary Muffin Monster grinders and Monster Industrial shredders are designed to break down the toughest solids in wastewater and industrial applications to protect pumps, destroy waste products and optimize materials for industrial processing. Our screening systems including our Monster Screening systems for municipal wastewater and IPEC drum screens for industrial waste separate solids from fluid waste streams to both protect downstream processes and recover valuable byproducts. Our FRC dissolved air flotation (DAF) systems tackle some of the most challenging industrial wastewater conditions removing suspended pollutants and ensuring manufacturers stay in compliance with discharge permits.

JWC Environmental has the depth of experience and manufacturing capability to tackle projects, around the world. Our team of over 200 employees are based out of our global manufacturing and service facilities in Santa Ana, California; Burnaby, British Columbia; Cummings, Georgia, Whitby, Ontario; Hangzhou, China; and Cheshire, England.

Over the last four decades JWC Environmental has built one of the best distributor and representative networks to ensure top-notch customer service to match the quality of the Monster machines we build. We distribute waste grinders, screens, and DAFs through a global network of over 120 North American and international distribution and representative firms.

JWCE Waste Grinder Demo
Food Waste Grinding Video


The patented Muffin Monster® design has established new standards in product performance and reliability due to decades of technical advancements and innovative design improvements.

Adapts to pipelines or channels with little or no modification and custom stainless steel frames allow easy installation in channels, wet wells and pump stations.
Channel Monsters® easily replace troublesome bar screens and comminutors — helping you reduce operating and maintenance costs. Clean, powerful, reliable and cost effective – Channel Monster is the industry’s high-flow grinder of choice!
The Auger Monster® is a robust and affordable wastewater screen which combines three of JWC’s finest technologies – a grinder, a fine screen and a compactor. It removes trash and unwanted solids. The new Vertical Auger Monster protects pump stations from non-dispersible wipes.
Monster Separation Systems® are a complete, high-performance system that provides high capture rate of wastewater solids and more efficient washing and compacting, resulting in a discharge that is remarkably clean and ready for disposal. The more unwanted solids removed at the headworks of your treatment plant, the better the whole facility will run.
The Screenings Washer Monster® (SWM) produces ultra-clean discharge using a patented system to grind, wash, compact and dewater debris captured by a screen. This self-contained, hopper fed system produces the industry’s cleanest most compact screenings discharge.
The Honey Monster® Septage Receiving Station is based on proven Auger Monster® technology, which allows cleaner handling of septage truck waste through separation of solids. The unique combination of grinding, washing and dewatering septage waste can be accomplished in approximately 5 to 15 minutes for a typical septage truck.



3 cutter stack sizes: 8” (200mm), 12” (300mm) and 18” (450mm)
Motor size: 5HP (3.7 kW)

Applications: MARPOL, Food Waste, Agriculture, Petroleum
3 cutter stack sizes: 18” (450mm), 24” (600mm) and 32” (800mm)

Motor size: 10HP (7 kW)

Applications: Agriculture, Food Waste, Product Destruction, Depackaging, Recycling

*model shown with optional hopper
3 cutter stack sizes: 30” (762 mm), 40” (1016mm) and 50” (1270mm)
Motor size: 25 - 50HP (18.5 - 37 kW)

Applications: Agriculture, Food Waste, Product Destruction, Recycling
The Monster Industrial Fish Cleaning Station is the most efficient fish cleaning station available. The self-contained unit uses a powerful HYDRO dual-shafted grinder to shred solids, such as fish parts, cans, plates, utensils and fishing lures.
The Zero Waste Monster ™ (ZWM) is a self-contained, hopper-fed system designed to separate liquids, gels, creams and semi-solids from their plastic, glass or metal containers.  This patented system will give you the peace of mind of onsite product destruction, while saving you money in waste hauling and landfill fees.

Applications: Depackaging, Recycling