John Deere HH50 HH50 Heavy Harrow Tillage Tools
Agriculture
- Break up and evenly spread straw residue
 - Work at speeds up to 12 mph (19.3 km/h)
 - Drop-out tine replacement for easy maintenance
 - Flexible sections maintain even ground contact
 
Equipment Features
Featured List
- Working Width: 50 ft. (15 m)
 - Harrow Sections: 5
 - Engine Horsepower: 285 - 325
 - Tine Spacing: 5 bar: 18-in. (46 cm) centers
7 bar: 14-in. (36 cm) centers - Tine Size: 5 bar: 26-in. (66 cm) by 5/8-in.(1.5 cm)
7 bar: 26-in. (66 cm) by ½-in.(1.3 cm) 
Featured Content

 
  HH70 Five-Bar model 
 
The Heavy Harrow is available in sizes ranging from 15.2 m to 25 m (50 ft to 82 ft). Power requirements range from 111.9 kW to 354.2 kW (150 hp to 475 hp).
| 
 Model  | 
 Category  | 
 Minimum engine power requirement  | 
| 
 15.2 m (50 ft), five bar  | 
 4  | 
 111.9 kW (150 hp)  | 
| 
 15.2 m (50 ft), seven bar  | 
 4  | 
 223.7 kW (300 hp)  | 
| 
 21.3 m (70 ft), five bar  | 
 4  | 
 149.1 kW (200 hp)  | 
| 
 21.3 m (70 ft, seven bar  | 
 5  | 
 298.3 kW (400 hp)  | 
| 
 25 m (82 ft), five bar  | 
 4  | 
 223.7 kW (300 hp)  | 
| 
 25 m (82 ft), seven bar  | 
 5  | 
 354.2 kW (475 hp)  | 
NOTE: Power requirement is dependent on field conditions and tine angle.

 
  HH70 Five-Bar model 
 
The Heavy Harrow is available in either a five-row configuration with 66-cm x 1.6-cm (26-in. x 5/8-in.) tines or a seven-row configuration with 66-cm x 1.3-cm (26-in. x 1/2-in.) tines. Both configurations have tungsten carbide Endura-Tip tines.
- Easily replace tines by removing a few bolts and easily dropping out the tine bar.
 - Tine adjustment is simple with either mechanical or hydraulic adjust options.
 - The seven-row configuration offers approximately 68 percent more ground coverage in the field over the five-row configuration.