HYDRAULIC DRILL MOTORS

Hydraulic Motors

  1. Danfoss
  2. Char-Lynn
  3. White
  4. Flow Control Valve
  5. Pillow Block & Spindle

4-Speed Hydraulic Motor

  • 160, 320, 480, 960 RPM (speeds at 12 GPM)
  • Minimum RPM 110
  • Maximum RPM 1600
  • Minimum GPM 8
  • Maximum GPM 20
  • 12" drilling capacity (w/o extension)
  • 24" drilling capacity (with extension)

Typical Hydraulic Motor Setup

(M-6 Rig Shown) Hydraulic motors can also be used on the M-2 and M-5 Rigs

Hydraulic Motor RPM Data for Webster Motors

Maximum RPM Values with Various Cubic Inch Displacement/GPM Combinations
Webster Motors
GPM .7 Cu Inch

Part # - 4250012

 1.1 Cu Inch

Part # - 4250013

 1.5 Cu Inch

Part # - 4250014

 1.9 Cu Inch

Part # - 4250015
8 2640 1680 1232 973
12 N/A 2520 1848 1459
20 N/A N/A N/A 2553
25 N/A N/A N/A N/A

Hydraulic Motor RPM Data for Char-Lynn Motors

Maximum RPM Values with Various Cubic Inch Displacement/GPM Combinations

Char-Lynn Motors
GPM 4.9 Cu Inch

Part # 4250008

 6.2 Cu Inch

Part # 4250007

 8.0 Cu Inch

Part # 4250006

 9.6 Cu Inch

Part # 4250005

 11.9 Cu Inch

Part # 4250004

 14.9 Cu Inch

Part # 4250002

 18.7 Cu Inch

Part # 4250000
8 377 298 231 193 155 124 99
12 566 447 347 289 233 186 148
20 990 782 606 505 408 326 259
25 1226 969 751 626 505 403 321

Hydraulic Motor RPM Data for White Motors

Maximum RPM Values with Various Cubis Inch Displacement/GPM Combinations

White Motors
GPM 24.0 Cu Inch

Part # 4250003

 32.0 Cu Inch

Part # 4250010

 45.6 Cu Inch

Part # 4250011
8 77 58 41
12 116 87 61
20 202 152 106
25 250 188 132

Recommended RPM's for Various Bit Sizes
Bit Diameter 1" 2" 3" 4" 6" 8" 10"
Recommended RPM 3200 1600 1050 800 530 400 320
 
Bit Diameter 12" 14" 18" 20" 24" 36" 42"
Recommended RPM 265 225 175 160 130 85 75