Arbe PM-504 1/2 HP Variable Speed Double Spindle Pro-Series Jewelry Polishing Motor

The Arbe PM-504 1/2 HP Variable Speed Double Spindle Pro-Series Polishing Motor is a professional jewelry polishing and buffing machine designed for jewelers, goldsmiths, silversmiths, watchmakers, repair shops, and metalworking professionals. Featuring a powerful 1/2 HP motor, variable speed control, and double-spindle configuration, the PM-504 provides the versatility needed for a wide range of jewelry polishing, buffing, and finishing applications.

With an adjustable speed range of 0–3,450 RPM, this professional polishing motor gives operators greater control over their finishing process. Lower speeds can be used when additional control is required, while higher speeds provide the performance needed for efficient polishing and final finishing.

Variable Speed Control Up to 3,450 RPM

Unlike fixed-speed polishing motors, the Arbe PM-504 provides full variable speed operation from approximately 0 to 3,450 RPM. This allows the operator to select an appropriate speed based on the workpiece, polishing wheel, compound, and desired finish.

Variable speed control makes the PM-504 especially versatile for professional jewelry workshops handling a variety of materials and finishing processes.

Double-Spindle Polishing Design

The double-spindle configuration provides two working positions, allowing different polishing buffs or wheels to be mounted on either side of the motor. Jewelers can set up separate wheels for different polishing stages, compounds, or materials, helping reduce wheel changes and improve workflow efficiency.

The PM-504 includes spindles and 1/2" arbors, providing a professional foundation for a customized jewelry polishing setup.

Powerful 1/2 HP Motor

The integrated 1/2 horsepower motor delivers dependable performance for everyday jewelry polishing and finishing applications. Its combination of power and adjustable speed makes it suitable for working with gold, silver, platinum, brass, copper, and other metals commonly encountered in jewelry manufacturing and repair.

Use the PM-504 for applications including:

• Jewelry polishing and buffing

• Precious metal finishing

• Ring, bracelet, and pendant polishing

• Cast jewelry cleanup

• Jewelry repair and restoration

• Surface preparation

• Final high-luster finishing

• Watch and small metal component polishing

Features & Specifications

• Model: PM-504

• Motor Power: 1/2 HP

• Speed: Variable, approximately 0–3,450 RPM

• Configuration: Double spindle

• Professional variable speed control

• Overall Width: Approximately 16"

• Motor Height: Approximately 11"

• Height to Center of Shaft: Approximately 7"

• Voltage: 110V / 60Hz / single phase

• Published Shipping Weight: Approximately 49 lbs.

• Includes spindles and 1/2" arbors

• Compact professional benchtop design

• Ideal for jewelry polishing, buffing, and finishing

• Suitable for jewelers, goldsmiths, silversmiths, watchmakers, and repair professionals

Professional Variable Speed Jewelry Polishing Motor

The Arbe PM-504 Variable Speed Double Spindle Polishing Motor combines power, versatility, and professional workshop performance in a compact benchtop machine. Its 1/2 HP motor, 0–3,450 RPM variable speed control, and dual-spindle design allow jewelers to customize their polishing setup for different finishing stages and applications.

Whether you're performing daily jewelry repairs, polishing newly cast pieces, restoring precious metal jewelry, or completing final finishing work, the Arbe PM-504 provides a versatile polishing solution for professional jewelry workshops.