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Guide to Selecting the Right Benchtop Brake Lathe Model

Guide to Selecting the Right Benchtop Brake Lathe Model

2025-10-02

Automotive repair shops often face the challenge of selecting the most suitable equipment for brake disc and drum resurfacing. Accu-Turn's benchtop lathe series, known for its compact design and powerful performance, has become a top choice among professional technicians. This article provides an in-depth analysis of four Accu-Turn models - 8920 L, 8922 L, 8944 L, and 8989 - to help workshops make informed decisions.

Accu-Turn Benchtop Brake Lathe Series Overview

The Accu-Turn benchtop lathe series offers efficient and precise solutions for brake disc and drum restoration. Designed for workshops of all sizes, these machines combine user-friendly operation with space-saving footprints. All four models feature rugged construction for long-term reliability. Note that when ordering any "L" model lathe, the corresponding brake disc adapter kit must be purchased simultaneously.

Detailed Specifications Comparison

The following table presents key specifications for the four Accu-Turn models:

Specification 8920 L 8922 L 8944 L 8989
Power Requirements 115V, 50/60 Hz (220V single-phase optional) 115V, 50/60 Hz (220V single-phase optional) 115V, 50/60 Hz (220V single-phase optional) 115V, 50/60 Hz (220V single-phase optional)
Motor Power ½ HP 1 HP 1 HP 1 HP
Rotor (Brake Disc) Capacity
Diameter Range 4" - 24" 4" - 24" 4" - 24" 4" - 24"
Max Surface Width 4.50" 4.50" 4.50" 4.50"
Max Thickness 2.25" 2.25" 2.25" 2.25"
Drum Brake Capacity
Diameter Range 6" - 28" 6" - 28" 6" - 28" 6" - 28"
Cutting Depth 6" 6" 6" 10"
Flywheel (Flat or Stepped) Capacity
Diameter Range N/A 6" - 24" 6" - 24" 6" - 24"
Friction Surface Capacity N/A 6" 6" 6"
Max Mounting Weight
Standard Shaft 150 lbs. 150 lbs. 150 lbs. 150 lbs.
Heavy-Duty Shaft 300 lbs. 300 lbs. 300 lbs. 300 lbs.
Heavy-Duty Shaft/Outboard Support N/A N/A N/A 600 lbs.
Spindle Speed 180 RPM 105 RPM 100-150-200 RPM 52-105 RPM
Feed per Revolution
Rotor 0.0046" 0.0030" 0.001"-0.010" 0.0030"
Drum Brake 0.0046" 0.0046" 0.0015"-0.015" 0.0046"/0.0092"
Weight 469 lbs. 474 lbs. 500 lbs. 525 lbs.
Key Selection Factors
  • Motor Power: The 8922 L, 8944 L, and 8989 models feature 1 HP motors, providing greater cutting power compared to the 8920 L's ½ HP motor, making them better suited for larger or harder brake components.
  • Flywheel Capability: The 8920 L lacks flywheel processing capacity. For flywheel resurfacing, choose among the 8922 L, 8944 L, or 8989 models.
  • Spindle Speed: The 8944L offers three-speed selection for different materials and working conditions. Lower speeds typically work better for larger or harder components, while higher speeds suit smaller or softer materials.
  • Feed per Revolution: This determines cutting speed and surface finish. The 8944L provides the widest feed range for more precise machining.
  • Max Mounting Weight: The 8989 supports up to 600 lbs with heavy-duty shaft and outboard support, significantly more than other models' 300 lbs capacity.
  • Cutting Depth: The 8989 offers 10-inch drum cutting depth compared to 6 inches on other models, accommodating deeper wear patterns.
Conclusion

The Accu-Turn benchtop brake lathe series offers multiple options to meet various workshop requirements. When selecting a model, consider the types of brake components you typically handle, their sizes and weights, along with your desired precision and efficiency levels. By carefully comparing these specifications, workshops can identify the ideal equipment to enhance their service quality and productivity.