4710D Horizontal Grinder

4710D Horizontal Grinder


The 4710D Horizontal Grinder is a track mounted horizontal grinder designed for high-volume producers with very demanding end-product specifications. Boasting 18 inches (46 cm) of ground clearance—this model is particularly suited for land clearing operations or other applications where mobility and frequent moving is desired. Track mounting also reduces material handling costs in conventional recycling yards as well.

The 4710D Horizontal Grinder is powered by a Tier IV Caterpillar C18 engine rated at 755 horsepower (563 kW). A Tier II (export only), 765 horsepower (570 kW) engine is also available. It features Peterson’s Adaptive Control System, which controls all components of the feed system to optimize output. This system senses variations in the engine load and adapts the operating parameters to produce the maximum amount of material at all times.

Peterson’s three-stage grinding process with an up-turning rotor and large grate area enables the 4710D Horizontal Grinder to produce materials to exact specifications. Quick-change multiple grate system makes it easy to customize grate configurations to produce a wide variety of finished materials. Grates are removed through an access door on the side wall.

The IQAN control system provides the operator with complete engine and system parameters to simplify set up to efficiently operate the unit.

4710D Horizontal Grinder


3-Stage Grinding Process Provides Faster Reduction

Peterson’s 3-stage grinding process provides better fracturing of material and a more consistent product, giving you just the product your buyers are looking for.

The Impact Release System Protects Your Investment

Peterson’s patented Impact Release System’s air bags provides uniform grinding and protection from contaminated feedstock, a feature unique to Peterson grinders.


The Second Line of Defense: The Impact Cushion System

Urethane cushions and shear pins help protect the mill from catastrophic damage in the event of a severe impact from contaminants in the feedstock.


Towing Made Easy

An optional tow dolly with outriggers is available.

4710D Horizontal Grinder



Operating Length
56' 9" (1730 cm)
Operating Width
11' (336 cm)
Operating Height
16' 8" (508 cm)
Travel Length
44' 11"(1369 cm)
Travel Width
9' 10" (299 cm)
Travel Height
11' 10" (361 cm)
Hopper Length
14' 2" (432 cm)
Hopper Height
7' 4" (222 cm)
Track Length
15' (457 cm)
Front to Track
14' 10" (452 cm)
Rear Angle of Approach
Ground Clearance
18" (46 cm)


Machine Weight
79,000 lbs (35 834 kg)
*varies based on optional equipment and machine configuration.


Caterpillar C18 Tier IV, 755 hp (563 kW)
Caterpillar C18 Tier II, 765 hp (570 kW) export only
PT Tech HPTO 15
Fuel Tank Capacity
300 US gal (1136 L)
Main Hydraulic Tank Capacity
90 US gal (341 L)


Track Width
23.5" (60 cm)
Travel Speed
1.2/2.3 mph (1.9/3.7 kph)
Ground Pressure
11.4 lbs/in² (78.6 kPa)

System Controls

Peterson+ Analytics

Feed System

7.8 yd³ (6 m³)
4 sections, full hopper width
Feed Conveyor Width
5' (152 cm)
Feed Opening (width x height)
60" x 38" (152 x 97 cm)
60" x 53" (152 x 135 cm)
Compression Roll Diameter (tip to tip)
33.5" (85 cm)


Rotor Shaft Size
5.9" (150 mm) @ bearing, 7.5" (190 mm) @ center
Rotor Speed
1050 fpm (320 mpm) @ 2100 rpm (engine)
Rotor Width
64" (161 cm)
Rotor Diameter
38" (96.5 cm)
Bit Size (width x height)
2.75" x 5" (70 x 127 mm)
Number of Bits


Number of Grate Sections
Total Grate Area
28 ft² (2.6 m²)
Grate Coverage
Grate Thickness
1" (25 mm) or 1.25" (32 mm)

Discharge System

54" (137 cm)
Discharge Conveyor Height
16' 8" (508 cm)
Discharged Conveyor Speed
500, 600, 700 ft/min (152, 183, 213 mpm)


360 yd³/95 US tons (275 m³/86 metric tons) per hour
425 yd³/65 US tons (325 m³/59 metric tons) per hour
Actual output may vary due to moisture content, material density, material size, support equipment, and grate size. Production rates are based on grinding 50 minutes per hour.

Optional Equipment

Cold Weather Kit
LED Work Lights
CE Certification

Specifications vary based on optional equipment and machine configuration and are subject to change without notice. Measurements are rounded to the nearest whole increment.

4710D Horizontal Grinder


4710D Land Clearing in Ohio
4710D grinding wet green waste

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