Rainhart Soil Compactor Motor - Leeson

Keep your Rainhart Soil Compactor operating reliably with this heavy-duty replacement Leeson gear motor. Designed for industrial power transmission applications, this 1/3 HP motor delivers dependable performance, consistent rotational speed, and the durability required for demanding laboratory environments.

Featuring a rugged die-cast aluminum gear housing, precision-machined gearing, and a totally enclosed fan-cooled (TEFC) design, this motor is built for continuous-duty operation. Its capacitor-start configuration provides reliable starting performance, while the 6:1 gear reduction produces a 288 RPM output speed with up to 70 in-lb of torque.

The HMA replacement motor assembly is supplied prewired for the Rainhart Soil Compactor and includes an adjustable pulley for proper operating speed adjustment.

Key Features

• Compatible with the Rainhart Soil Compactor used for ASTM D698, ASTM D1557, AASHTO T 99, and AASHTO T 180 soil compaction testing when installed and adjusted correctly.
• Powerful 1/3 HP capacitor-start motor provides dependable operation with a maximum output torque of 70 in-lb.
• Delivers a 288 RPM output speed through a precision-engineered 6:1 gear reduction system.
• Supports 115/208–230V AC, single-phase, 60 Hz electrical configurations for installation flexibility.
• Totally enclosed fan-cooled construction protects internal motor components against dust and contaminants commonly encountered in laboratory environments.
• Heavy-duty AGMA Class 9 gearing is designed to withstand momentary shock overloads up to 200% for demanding industrial applications.
• Precision-ground needle bearing journals and oversized output bearings provide excellent load support and extended service life.
• Rugged die-cast aluminum gear housing provides strength, rigidity, and reliable support for internal gears and bearings.
• Heavy-duty industrial oil seals help retain lubrication while preventing dirt and contaminants from entering the gear housing.
• Reversible clockwise or counterclockwise rotation provides flexibility for equipment drive configurations.
• Continuous-duty design supports reliable operation during repeated laboratory soil compaction cycles.

Lab Manager's Tip

When replacing the gear motor on a Rainhart Soil Compactor, verify that the motor's electrical configuration, pulley adjustment, rotation, and mounting arrangement match the original equipment before returning the machine to service.

For laboratories performing ASTM D698, ASTM D1557, AASHTO T 99, or AASHTO T 180 testing, remember that the motor itself does not establish compliance with these standards. After replacement, verify the compactor's required hammer mass, drop height, blow count, and operating characteristics according to the applicable test method.