Heavy-Duty Auger Drives for 18-30T Excavators

Digga's range of drilling augers for 18-30T excavators, available in 2-speed, are the ultimate in performance, quality and cost effectiveness.

Engineered for professional contractors working with large excavators, these 2-speed auger drives deliver exceptional torque and reliability for the most demanding drilling applications. Whether you're installing deep foundations, drilling large-diameter utility holes, or performing extensive geotechnical work, these auger drives provide the power and precision needed for heavy-duty operations.

Key Features:

• 2-speed gearbox for optimal performance across varying soil conditions
• Heavy-duty construction built specifically for 18-30 tonne excavators
• Superior torque output for challenging drilling applications
• Proven reliability in the most demanding field conditions
• Compatible with a wide range of auger bit sizes and types
• Designed and manufactured by Digga for quality assurance

Single Speed Specs	20DDS	25DDS	30DDS
Max Torque (FT-LBS @ 3500 PSI)	19,488	24,514	30,771
Recommended Flow (GPM)	26-60	26-60	26-60
Motor Type	Eaton	Eaton	Eaton
Max Pressure (Do Not Exceed)	3500 PSI @ 33 GPM
Max Flow (Do Not Exceed)	61 GPM @ 1800 PSI
Max Horse Power	67	67	67
Pressure Relief Valve	Included	Included	Included
Standard Output Shaft	100 mm Square	100 mm Square	100 mm Square
Halo	Optional	Optional	Optional
Recommended Auger	RC10 / RC11	RC10 / RC11	RC10 / RC11
Max Auger Diameter (Clay / Shale)¹	60"	60"	60"
Max Auger Diameter (Earth)¹	72"	72"	78"
Weight (lbs.)	640	640	640
Overall Length (in.)	45.3"	45.3"	45.3"
Diameter (in.)	14"	14"	14"

Single Speed Output
20DDS				25DDS				30DDS
OUTPUT SPEED		OUTPUT TORQUE		OUTPUT SPEED		OUTPUT TORQUE		OUTPUT SPEED		OUTPUT TORQUE
GPM	RPM	PSI	FT-LBS	GPM	RPM	PSI	FT-LBS	GPM	RPM	PSI	FT-LBS
26	14	1,500	8,352	26	11	1,500	10,506	26	9	1,500	13,188
30	17	1,700	9,466	30	13	1,700	11,907	30	10	1,700	14,946
34	19	1,900	10,579	34	15	1,900	13,308	34	12	1,900	16,704
38	21	2,100	11,693	38	17	2,100	14,709	38	13	2,100	18,463
42	23	2,300	12,807	42	18	2,300	16,109	42	15	2,300	20,221
46	25	2,500	13,920	46	20	2,500	17,510	46	16	2,500	21,979
50	28	2,700	15,034	50	22	2,700	18,911	50	17	2,700	23,738
54	30	2,900	16,147	54	24	2,900	20,312	54	19	2,900	25,496
58	32	3,200	17,261	58	25	3,200	21,713	58	20	3,200	27,254
60	33	3,300	18,375	60	26	3,300	23,113	60	21	3,300	29,013
		3,500	19,488			3,500	24,514			3,500	30,771

Digga's 2 Speed Augers are designed to suit excavators & skid steer loaders, truck cranes, front end loaders, wheeled loaders and backhoes with flows between 20-53gpm. We distribute our 2 Speed Drilling Augers throughout North America.

Two-Speed Features:

• Compact high torque Digga manufactured gearbox
• Highly efficient design with less moving parts
• Fitted with Eaton VIS motor
• Integrated PRV (Pressure Relief Valve)
• Extreme duty shaft locking system
• Drive fits down the hole for greater digging depth
• 5 year gearbox and 3 year motor warranty
• Low maintenance

2-Speed Specs	20DDT	25DDT	30DDT
Max Torque (FT-LBS @ 3500 PSI)	20,309	25,027	31,489
Recommended Flow (GPM)	20-53	20-53	20-53
Motor Type	Eaton	Eaton	Eaton
Max Pressure (Do Not Exceed)	3500 PSI @ 39 GPM
Max Flow (Do Not Exceed)	53 GPM @ 2600 PSI
Max Horse Power	80	80	80
Pressure Relief Valve	Included	Included	Included
Standard Output Shaft	100 mm Square	100 mm Square	100 mm Square
Recommended Auger	RC10 / RC11	RC10 / RC11	RC10 / RC11
Max Auger Diameter (Clay / Shale)¹	60"	60"	60"
Max Auger Diameter (Earth)¹	72"	72"	72"
Weight (lbs.)	670	670	670
Overall Length (in.)	45.9"	45.9"	45.9"
Diameter (in.)	14"	14"	14"

2-Speed Output
20DDT						25DDT						30DDT
OUTPUT SPEED			OUTPUT TORQUE			OUTPUT SPEED			OUTPUT TORQUE			OUTPUT SPEED			OUTPUT TORQUE
GPM	HI TORQUE LOW SPEED	LO TORQUE HIGH SPEED	PSI	HI TORQUE LOW SPEED	LO TORQUE HIGH SPEED	GPM	HI TORQUE LOW SPEED	LO TORQUE HIGH SPEED	PSI	HI TORQUE LOW SPEED	LO TORQUE HIGH SPEED	GPM	HI TORQUE LOW SPEED	LO TORQUE HIGH SPEED	PSI	HI TORQUE LOW SPEED	LO TORQUE HIGH SPEED
20	11	16	1,000	5,803	3,830	20	9	13	1,000	7,151	4,719	20	7	10	1,000	8,997	5,938
30	16	24	1,500	8,704	5,745	30	13	19	1,500	10,726	7,079	30	10	15	1,500	13,495	8,907
40	21	32	2,000	11,605	7,659	40	17	26	2,000	14,301	9,439	40	14	21	2,000	17,994	11,876
53	28	42	2,500	14,506	9,574	53	23	34	2,500	17,876	11,798	53	18	27	2,500	22,492	14,845
			3,000	17,408	11,489				3,000	21,452	14,158				3,000	26,991	17,814
			3,500	20,309	13,404				3,500	25,027	16,518				3,500	31,489	20,783

¹Max/min drilling diameter (DIA) dependent on ground conditions. Guide is a recommendation only.