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Reference Library › Other Machines › CL720A
Clausing

CL720A Radial Arm Drill

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Clausing CL720A
Photo: Clausing (manufacturer)
MakeClausing
ModelCL720A
Machine typeOther Machines
Machine StyleRadial Arm Drill
Drive TypeGeared Head
Number Spindle Speeds6
Spindle Speeds (RPM)88, 154, 282, 455, 796, 1500
Column to Spindle Center Min-Max (in)8.7 to 29.5
Spindle Head Travel (in)20.8
Arm Elevation Travel (in)31.5
Spindle Nose Taper4 MT
Spindle Travel (in)8.66
Column Diameter (in)8.28
Base Surface to Spindle Nose Min-Max (in10.2 to 41.7
Auxiliary Box Table Dimensions (LxWxH in23.6 x 17.5 x 15
Base Working Surface (in)35.5 x 25.3
Number Of Feeds3
Feed Rate in/rev0.002/0.0036/0.006
Drill Capacity Steel (in)1.26
📋 Spec data: Detailed (25 fields) · compiled from manufacturer and public sources · reference updated 2026-09-30.
These specifications describe the model in general. The year, electrical configuration, spindle, and option package of a specific unit may differ — always verify against the actual machine. Methodology · Data sources.

About the Clausing CL720A radial arm drill

The Clausing CL720A is a geared-head radial arm drill for large or difficult-to-position workpieces. Clausing lists a 29.5-inch maximum column-to-spindle reach, six spindle speeds from 88 to 1,500 rpm, 1.26-inch steel drilling capacity, a 2 hp spindle motor and standard 230/460-volt three-phase electrical configurations. Those are model-level specifications; confirm the nameplate, installed guarding and exact configuration on the individual machine.

How to run a Clausing CL720A: start with the correct setup

This page is a model reference, not an operating manual. Before operation, a qualified user should match the machine serial number and electrical nameplate to the correct Clausing manual, complete site-specific training and follow the employer's lockout, guarding and inspection procedures.

  1. Verify the power configuration, controls, emergency stop, spindle guard, limit switch and coolant system before the machine is energized.
  2. Inspect the spindle taper and tooling, then secure the workpiece and confirm the box table, arm, column and drill head are properly positioned and clamped.
  3. Select speed and feed for the tool, material and hole operation using the approved process documentation; verify clearance before the tool approaches the work.
  4. Run the employer-approved pre-start check and controlled test operation before committing to the production cut.

Official resources: use the Clausing CL720A product page and Clausing radial drill brochure for manufacturer specifications and support pathways. If the machine's condition, guarding or documentation is uncertain, stop and have it evaluated by a qualified machine-tool service provider.

Used market research

Research Clausing CL720A in the used-machine market directory → — review current and historical seller-source records, then verify availability directly with the originating source.

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Machinery terms

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