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AMMCO® Brake Lathe 4000SP Combination Disc and Drum

  Ammco Brake Lathe MODEL #: 4000SP              PART #: 904000SP    
  Single Pass Combination Lathe for Brake Drums and Rotors, Less Adapters 110V 60 Hz (Must be Purchased with a Bench Lathe Adapter Kit)  
  Brake Lathes - Combination    
  The AMMCO® 4000SP Combination Disc and Drum Brake Lathe has been professionals' first choice for more than 50 years.  

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The AMMCO® 4000SP Combination Disc and Drum Brake Lathe offers such legendary reliability and proven performance with one-pass finishing that we're surprised it even requires an operator.


 Key Features

  • One-pass finishes – One-pass design provides exceptional rotor finish.
  • Single-speed rotation and feeds – Simple operator use, with no adjustments necessary.
  • Positive rake tool bits create precisely machined surfaces that meet or exceed OE specifications.
  • Quick drum to rotor changeover – Converts from drums to rotors in less than 30 seconds; with optional arbor, can machine drums to 200 pounds.
  • Solid twin cutter tool simultaneously resurfaces both sides of rotor.
  • Feed slide protection keeps travel surfaces free of dirt and chips.
  • Full-drum support hex boring bar guarantees correct tool angle for drums.

One-Pass Finishing

The AMMCO® 4000-SP is designed for speed. It cuts rotors in one pass, with a high-quality finish. Positive rake tool bits allow for precision turning that produces superior machined surfaces every time. Set it and forget it.


Easy, Efficient Operation

Work quickly and efficiently. Ergonomics are designed for minimal operator movement. Twin cutter dials and depth of cut are clearly marked, and even new operators can quickly turn rotors like seasoned professionals.


Weight (lbs)





Car & Light Truck





Max Rotor


Max Rotor Face Width

3 3/4"

Standard Max Arbor Capacity

100 lbs

Heavy Duty Max Arbor Capacity

200 lbs

Max Rotor Thickness


Flywheel Service Capable


Spindle Bearings

Bronze Sleeve


1 HP

Tool Bits(shipped with)

Positive Rake

Double Taper Arbor


Spindle Speed

100 RPM

D rum Feed Rate


Max Drum Depth


Rotor Feed Rate



Superb Accuracy For Customer Satisfaction

Like every AMMCO® brake lathe, the 4000-SP is a precision tool that cuts to one-thousandths of an inch tolerances. With today’s more sensitive vehicles, this helps ensure customers get smooth braking and complete satisfaction.


Industry Leader in Durability

Many AMMCO® 4000's are still in service after 40 years of continuous use. Massive “floating spindles” offer superior weight support, and a unique patented system provides a constant oil feed to bearings. It’s designed to work like brand new—for a long, long time.


Customize a Lathe Package for Your Shop

If you're just starting out or need a completely new brake station, AMMCO® Brake Service Solutions can fill all of your needs. Select from a wide assortment of benches, lathes, micrometers, adapters and other helpful accessories.

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