Permanent Magnetic Motor Driveheads

The Permanent Magnetic Motor (PMM) series of direct drives offer the highest level of energy efficiency. The M-75 PMM is designed for medium- to high-horsepower applications, while the M-105 PMM is designed for high-horsepower applications.

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Description

Specifications

Permanent Magnetic Motor Driveheads Style Specifications

M-75 PMMM-105 PMM

Drive type

Direct

Direct

Shaft type

Hollow

Hollow

Drive style

Bearing

Bearing

Input style

Vertical

Vertical

Drive ratio

1:1

1:1

Backspin control

Integrated resistive braking through VFD

Integrated resistive braking through VFD

Permanent Magnetic Motor Driveheads Ratings Specifications

*Ca90 load rating is for 90 million revolutions. Reducing load one-half increases life 10 times. Reducing RPM by one-half doubles hours of life.**Efficiency and RPM/torque are typically derated at higher temperatures.

M-75 PMMM-105 PMM

Max. output torque

750 ft-lbs (1,017 Nm)

1,000 ft-lbs (1,355 Nm)

Speed range

30 to 450 RPM

30 to 450 RPM

Thrust bearing

165,000 ISO lbf (Optional 297,000 ISO lbf)

165,000 ISO lbf (Optional 297,000 ISO lbf)

Thrust bearing*

43,000 Ca90 lbf (Optional 77,000 Ca90 lbf)

43,000 Ca90 lbf (Optional 77,000 Ca90 lbf)

Polish rod size

1¼ in. (32 mm) or 1½ in. (48 mm)

1¼ in. (32 mm) or 1½ in. (48 mm)

Max. operating temperature**

112 °F (50 °C)

112 °F (50 °C)

Permanent Magnetic Motor Driveheads Dimension Specifications

M-75 PMMM-105 PMM

Height with retro stuffing box

69.7 in. (1,770 mm)

72.7 in. (1,847 mm)

Height with integral stuffing box

53.2 in. (1,350 mm)

56.2 in. (1,427 mm)

Diameter

30 in. (760 mm)

30 in. (760 mm)

Width

37 in. (940 mm)

37 in. (940 mm)

Weight (no stuffing box)

1,430 lbs (650 kg)

1,550 lbs (705 kg)

Resources

  • M-75 PMM Drivehead Flyer (English)

  • M-75 PMM Drivehead Flyer (Spanish)

  • M-105 PMM Drivehead Flyer (English)

  • M-105 PMM Drivehead Flyer (Spanish)