Perfect Balance of Power and Performance

The workhorse of the SM series trommels, the SM 720 provides the perfect balance of power and performance across a broad array of material applications. For operations that require high-volume screening, the SM 720 is designed to meet those peaks in demand without the need for a larger trommel. No other trommel in the industry offers the same efficiency and throughput. The new SM 720SA comes with a larger hopper and longer conveyors, increasing the throughput and stockpile capacity.


IMAGES AND VIDEOS


FEATURES AND BENEFITS


Optional Wind Sifter

Remove paper, plastic and other light fractions inline with an optional belt-mounted wind sifter.

Rear and Side Conveyor

The overs are discharged by the rear conveyor; the fines are discharged from the side conveyor. Optional magnetic pulley or overband magnet can be added for ferrous separation.

Large Access Doors

Large access doors provide easy access to all critical components and functions of the machine.

Remote Control

Control all of the trommel functions remotely, such as from a wheel loader.

Central Control Panel

Easy operation, precise adjustments, and machine data accessible by the multifunctional display.

Cleaning Brush

Self-cleaning of the drum by rotating, hydraulically tensioned cleaning brush.

Slip-On Coupling

The slip-on coupling allows the transport of the machine by means of a wheel loader grab (only machines with drawbar).

Swing-Out Engine

Easy access to engine and lubrication for effortless maintenance and repair. The water and oil cooler is provided with an additional dust protection blanket.

Quick-Change Screening Drum

The patented, load-sensing material feed enables optimum utilization of the large screening surface. Drums can be changed in 15 minutes or less for easy sizing transition.

Drum Drive

The drum with direct drive ensures operational safety and an easy replacement.

SPECIFICATIONS


 SM 720SM 720K
GENERAL SPECIFICATIONS
Permissible Weight 19,000 kg (41,888 lb) 24,000 kg (52,911 lb)
Chassis 2-central-axle trailer chassis, for 80 km/h (50 mph) with ABS tracklaying chassis
Drive diesel engine diesel engine
Type Mercedes-Benz OM 904 LA (optional: electric motor) Mercedes-Benz OM 904 LA
Power 68 kW (92 hp) at 1,600 rpm 68 kW (92 hp) at 1,600 rpm
Torque max. 400 Nm max. 400 Nm
Exhaust Level EUROMOT III A EUROMOT III A
Fuel Tank 300 l (79 gal) 300 l (79 gal)
Drum 2 screening fractions, 3rd fraction by means of stonegrid, vibrating screen or hopper star screen; 4th fraction by means of a windsifter at the rear conveyor 2 screening fractions, 3rd fraction by means of stonegrid, vibrating screen or hopper star screen; 4th fraction by means of a windsifter at the rear conveyor
Length 5,500 (18') 5,500 (18')
Diameter 2,000 (6' 7") 2,000 (6' 7")
Mesh Size selectable, 8 – 100 (0.31 – 3.94") selectable, 8 – 100 (0.31 – 3.94")
Mesh Type selectable (staggered squares, round holes) selectable (staggered squares, round holes)
Drum Wall Thickness selectable, 6 – 12 (0.24 – 0.47") selectable, 6 – 12 (0.24 – 0.47")
Drum Speed 0 – 18 rpm 0 – 18 rpm
FEEDING HOPPER
Feeding Volume 5.0 m³ (177 ft³) 5.0 m³ (177 ft³)
Feeding Width/Height 3,780 / 2,830 (12' 5"/ 9' 3") 3,780 / 2,890 (12' 5"/ 9' 6")
DISCHARGE (REAR)
Length 4,750 (15' 7") 4,750 (15' 7")
Width 1,000 (3' 3") 1,000 (3' 3")
Belt Speed m/s (ft in/s) 1.4 (4' 7") 0.9 (2' 11")
DISCHARGE (SIDE)
Length 4,750 (15' 7") 4,750 (15' 7")
Width 1,000 (3' 3") 1,000 (3' 3")
Belt Speed m/s (ft in/s) 2.8 (9' 2") 2.1 (6' 11")
OPTIONS stonegrid, vibrating screen or hopper star screen, remote control, additional hydraulic connections, magnetic pulleys at the side and rear conveyor, windsifter over rear conveyor skeletal drum stonegrid, vibrating screen or hopper star screen, remote control, additional hydraulic connections, magnetic pulleys at the side and rear conveyor, windsifter over rear conveyor skeletal drum

Click to Expand the Specifications Table

TESTIMONIALS


"We use our SM 720 Doppstadt trommel almost every day. It works great for us and we love the product it makes. I feel very lucky and fortunate that we invested in the machine that we did.”


John D.

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"The best part about all of the different features of the trommel is you can control your belt speed and your drum speed and the fuel usage, of burning minimum fuel. As of now, we are running around 2 gallons/hour and that has been a great thing for us."


Gary P.

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"Their maneuverability is excellent and key to our operations. The screens are easy to change, which is important for our desired sizing."


Matt B, President

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"The efficiency of our Doppstadt shredder, grinder and trommel screen are literally second to none."


Noah M., V.P. Operations

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"I own two Doppstadt SM720 trommels and would recommend them to anyone who wants a reliable and efficient trommel to screen compost or mulch."


Trent V.

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"We use our SM 720 Doppstadt trommel almost every day. It works great for us and we love the product it makes. I feel very lucky and fortunate that we invested in the machine that we did.”

John D.

"The best part about all of the different features of the trommel is you can control your belt speed and your drum speed and the fuel usage, of burning minimum fuel. As of now, we are running around 2 gallons/hour and that has been a great thing for us."

Gary P.

"Their maneuverability is excellent and key to our operations. The screens are easy to change, which is important for our desired sizing."

Matt B, President

"The efficiency of our Doppstadt shredder, grinder and trommel screen are literally second to none."

Noah M., V.P. Operations

"I own two Doppstadt SM720 trommels and would recommend them to anyone who wants a reliable and efficient trommel to screen compost or mulch."

Trent V.

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