ACRA RF-31 Milling Drilling Machine – 8″ × 28″ Bench Top Mill Drill (R8 Spindle)

ACRA RF-31 Milling Drilling Machine – 8″ × 28″ Bench Top Mill Drill (R8 Spindle)

$3,250.00

ACRA RF-31 mill drill with 8″ × 28″ table, R8 spindle, 2 HP motor, and 12 speeds for machining, drilling, and fabrication work.

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SKU: RF31 Categories: , Brand:

Description

Product Overview

The ACRA RF-31 is a bench-type milling and drilling machine designed for small shops, maintenance departments, and light fabrication work. With an 8″ × 28″ table and R8 spindle, it provides the versatility to perform milling, drilling, boring, and keyway cutting operations in a compact footprint.

Its rigid construction and step pulley drive system deliver reliable performance for everyday machining tasks.

Applications

  • Machine shops and toolrooms
  • Maintenance and repair departments
  • Light fabrication work
  • Prototype and small part machining

👉 Ideal for shops that need machining capability without a full-size mill

Key Features

  • 8″ × 28″ work table for versatile setups
  • R8 spindle taper (standard tooling compatibility)
  • 12 spindle speeds (150–3000 RPM) for different materials
  • 2 HP motor with single-phase power (110/220V)
  • 360° swiveling head for angled machining
  • Heavy-duty column and cast head for rigidity
  • Step pulley system for simple, reliable speed changes
  • Capable of milling, drilling, boring, routing, and keyway cutting
  • Compact footprint for smaller shops

Why This Machine Matters

Drill presses:

  • Cannot perform milling
  • Limited capability

Full-size mills:

  • Expensive
  • Require more space and power

The RF-31 solves this by:

  • Combining milling + drilling in one machine
  • Using standard tooling (R8)
  • Keeping cost and size manageable

👉 This makes it one of the most common “first milling machines” for shops

When to Use This Machine

  • Light machining and fabrication
  • Drilling and milling small parts
  • Maintenance shop work
  • Shops without space for a full knee mill

Specifications

  • Table Size: 8-1/4″ × 28-3/4″
  • Drilling Capacity: 1-1/4″
  • Face Mill Capacity: 3″
  • End Mill Capacity: ~3/4″
  • Spindle Taper: R8
  • Spindle Travel: 5″
  • Speeds: 150–3000 RPM (12 speeds)
  • Motor: 2 HP
  • Voltage: 110/220V single phase
  • Head Swivel: 360°

📞 Need Help Choosing the Right Milling Machine?

Not sure if a mill/drill like the RF-31 is enough or if you need a full knee mill?

👉 Call us or request a quote—we’ll help you choose the right machine based on your part size, tolerances, and workload.

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