Proctor Soil Compactor - Rainhart, Inc.

The Rainhart Proctor Soil Compactor is a fully automatic laboratory compactor designed for high-volume Standard Proctor, Modified Proctor, and specialized state-method soil compaction testing. Rainhart's circular compaction pattern moves the tamping head around the specimen rather than rotating the mold, while the machine automatically adjusts blow delivery relative to specimen height for efficient layer-to-layer testing.

Key Features

• Meets ASTM D698 and ASTM D1557
• Meets AASHTO T 99 and AASHTO T 180
• Accommodates TxDOT TEX-113-E, TEX-114-E and TEX-117-E, FLDOT FM 5-515, LBR and CBR applications with appropriate accessories
• Fully automatic compaction cycle
• Programmable blow counter
• Automatically stops after the selected number of blows
• Rapid change between 12" Standard Proctor and 18" Modified Proctor drop heights
• Interchangeable screw-on tamping heads
• Tamping head revolves around the stationary specimen
• Compatible with Rainhart Soil Compaction Analyzer technology
• Components designed for field-serviceable maintenance using common hand tools

Included Items

The base 662EP includes the automatic Rainhart Proctor Soil Compactor.

Tamping heads, molds, finishing tools, perforated base plates, and other method-specific accessories are selected separately according to the testing method being performed. Rainhart lists these as available accessories rather than standard included components.

Typical Applications

Standard Proctor testing, Modified Proctor testing, moisture-density relationships, DOT soil testing, geotechnical laboratories, earthwork QC/QA, university laboratories, CBR/LBR specimen preparation, and specialized state DOT compaction methods.

Lab Manager's Tip

This machine becomes especially valuable when a laboratory performs several different compaction methods. The interchangeable tamping-head system and adjustable 12"/18" drop allow one compactor to cover Standard and Modified Proctor work while optional molds and heads expand it into state-specific methods.

• Rainhart_Soil_Compactor_662EP_Parts_Diagram.pdf