Brand Logos_Menart

SP-40 Compost Turner

Big production, small footprint.

A machine doesn’t have to be big to work big, and the Menart SP-40 Compost Turner is proof.

Ideal for mid-size to smaller composting operations, the SP-40 can process a wide range of waste including dairy manure, wastewater biosolids, poultry products, sugar cane waste, and winery waste, thanks to its large diameter drum and durable paddles. The SP-40 compost turner can process windrows up to 14’ 5” wide and 5’ 10” tall with ease.

Switching from work mode to transport mode is made easy by the SP-40’s hydraulic folding mechanism and allows the unit to be moved just about anywhere.

30 years of experience and innovation is built into every Menart SP-40 Compost Turner, something you’ll see right away when you see it in operation.

Request Spec Sheet

Product Features

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EASY TRANSPORT

Simply switch from work mode to transport mode and pull the turner from site to site or wherever you need it to go.

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NO CREEPER GEAR NEEDED

Standard PTO power pushes along both the tractor and turner, just put the tractor in neutral and steer!

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SAFETY CURTAIN

To protect your tractor and property, a rubber safety curtain prevents compost from being thrown where it doesn’t need to go.

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HARDOX PADDLES

The drum tools are coated with an abrasion-resistant material for maximum tool life.

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RADIAL TORQUE LIMITER

The radial torque limiter and flywheel protect both the turner and tractor.

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Control System

All movement is controlled by touch screen and joystick with independent drive left / right wheel controls.

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HEIGHT ADJUSTABLE

The tunnel can be raised hydraulically 20″ to process larger windrows.

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WINDROW PROCESSING

Properly aerate and homogenize your compost in windrows up to 7’-5” tall and 14’-5” wide.

SP-40 COMPOST TURNER Demonstration

Interested in the Menart SP-40 tow-behind compost turner? Contact us to arrange an on-site demonstration at your facility, running your material, to see just how good it is!

Schedule Live Demo
A cut-out image of the Menart SP-40 tow-behind compost turner being pulled by a tractor.

Case Studies

Case Study Update: Catalyst BioAmendments

December 29, 2025

When we first featured Catalyst BioAmendments in 2021, the Nevada City, CA company was already known for producing exceptionally high-quality, microbe-focused compost and for challenging assumptions about what compost at…

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Table to Farm Compost Turns Food Scraps into Compost with Its BACKHUS A38 Turner

June 12, 2025

You’ve probably dined at a ‘farm to table’ restaurant that offers fresh, locally produced ingredients, supports local economies, and emphasizes transparency in its menu, letting consumers know exactly where their…

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Marin Sanitary Service Helps Turn Food into Clean Energy with Tiger HS-55 Depackager

May 19, 2025

Marin Sanitary Service (MSS), based in San Rafael, California, is a recycling pioneer that provides residential and commercial waste collection, recyclables, and organic waste pick-up services for Marin County. This…

Read More