Powermatic 1150A Variable Speed Drill Press - 6" Stroke - 1991 Model

Powermatic 1150A 15" Variable Speed Drill Press

Model: 1150A | Year: 1991 | Origin: McMinnville, TN, USA

Overview

The Powermatic 1150A is a premier industrial-grade drill press engineered for the most demanding toolroom environments. This 1991 model features the classic Reeves mechanical variable speed drive, allowing operators to adjust spindle speeds instantly while the motor is running—eliminating the downtime associated with manual belt changes. Known for its massive cast-iron head and precision-ground table, the 1150A delivers the rigidity required for high-accuracy drilling in both heavy steel and fine woodworking.

Technical Specifications

• Swing: 15 inches
• Spindle Travel (Quill): 6 inches (industry-leading depth capacity)
• Quill Diameter: 2-3/16 inches
• Column Diameter: 3 inches
• Spindle Speeds: Variable from 475 to 4,800 RPM
• Spindle Taper: #2 Morse Taper (MT2)
• Motor: Typically 3/4 HP to 1 HP industrial induction motor
• Electrical: Multi-voltage capable (115/230V Single Phase or 230/460V 3-Phase)
• Table Size: 12" x 18" (Production style) or 10" x 14" (Tilting style)
• Shipping Weight: Approx. 400 lbs

Key Performance Features

• Mechanical Variable Speed Drive: Allows for infinitely variable speed adjustment via a front-mounted dial. This is critical for optimizing tool life and finish quality when switching between large-diameter hole saws and small twist drills.
• Extra-Long Quill Travel: The 6-inch stroke provides significantly more range than standard 15" drill presses, allowing for deep-hole boring and high-clearance drilling tasks.
• Massive Vibration Damping: The heavy cast-iron column and head casting absorb vibration, protecting your drill bits and ensuring a "chatter-free" finish.
• Industrial Spindle Bearings: Equipped with oversized, lubricated-for-life ball bearings that maintain concentricity even under heavy side-thrust or high-RPM operation.