Xi'an Industrial Machinery Co., Ltd — machine tools since the 1990s
Engine Rebuilding Machine

Brake Disc Lathe C9350/C9370/C9372

This brake lathe range machines both drums and rotors, driven by precision electric DC servo motors specified for industrial motion control rather than a simple belt drive. What sets it apart in daily use is the Change Adapter system: it does away with conventional bell clamps and cones, and built-in springs mean the a...

Overview

What This Machine Does

This brake lathe range machines both drums and rotors, driven by precision electric DC servo motors specified for industrial motion control rather than a simple belt drive. What sets it apart in daily use is the Change Adapter system: it does away with conventional bell clamps and cones, and built-in springs mean the adapters stay with the machine instead of disappearing around the workshop. Twin cutter tools work both faces of a rotor at once, and a positive rake cutter tip angle is chosen so that a one pass finish is achieved virtually every time rather than repeating cuts for surface quality. Spindle and cross feed speeds are infinitely variable, so the operator sets a rough cut and then a precision finish cut without changing anything mechanical. Separate motors drive the drum and rotor feeds, which keeps the main motor working on the cut. Changeover from drum to rotor is quick, and a top storage tray keeps the adapters in reach.

Key Benefits

Why Buyers Choose This Machine

  • Precision electric DC servo motors meet industrial motion control requirements rather than belt-drive approximation
  • Change Adapter system removes the need for conventional bell clamps and cones
  • Built-in springs in the adapters mean they are not lost between jobs
  • Twin cutter tools machine both rotor faces so a disc is finished in one operation
  • Positive rake cutter tip angle gives a one pass finish virtually every time
  • Infinitely variable spindle and cross feed settings cover rough and precision finish cuts
  • Separate motors on drum and rotor feed keep the main motor's output on the cut
  • Adapter range covers standard and composite rotors on foreign and domestic cars and light trucks
Application

Where Brake Disc Lathe C9350 Earns Its Place

Problems It Solves

  • Bell clamps and cones get lost or mismatched and the wrong setup runs the rotor out
  • Machining each rotor face separately doubles the time on every disc
  • Repeating cuts for a good surface finish wastes rotor thickness and shop time
  • Changing from drum to rotor work on a single-purpose setup interrupts the flow of a brake bay
  • A single feed speed forces the same setting for roughing and finishing
  • Composite rotors need adapters a conventional cone set does not provide

Who It Is For

  • Brake specialist and fast-fit workshops
  • General automotive repair shops offering brake machining
  • Light truck and van fleet workshops
  • Distributors supplying vehicle service equipment in export markets

Application Scenarios

  • Skimming brake rotors to remove judder on cars and light trucks
  • Machining brake drums on the same lathe without a tooling rebuild
  • Working composite rotors that need correct adapter support
  • High-volume brake service where changeover time between vehicles matters
  • Mixed fleets of foreign and domestic vehicles in one workshop
Specification

Technical Detail

Technical Features

  • Precision electric DC servo motors for industrial motion control
  • Change Adapter system with built-in springs replacing bell clamps and cones
  • Precision twin cutter tools
  • Quick drum to rotor changeover
  • Infinitely variable spindle and cross feed speed settings
  • Separate motors on the drum and rotor feed
  • Positive rake cutter tip angle for a one pass finish
  • Adapter range for standard and composite rotors
  • Top storage tray for adapters and tools

Specifications

Machine typeBrake drum and disc lathe
ModelsC9350 / C9370 / C9372
Spindle drivePrecision electric DC servo motors
WorkholdingChange Adapter system with built-in springs
CutterPrecision twin cutter tools with positive rake tip angle
FeedInfinitely variable spindle and cross feed
Feed drivesSeparate motors for drum and rotor feed
Rotor typesStandard and composite rotors for foreign and domestic cars and light trucks
StorageTop storage tray for adapters and tools

Figures above are taken from the product information we hold. Send us your application and we will confirm the exact specification for the model quoted.

Manufacturing and Supply

How It Is Built and What Can Be Changed

Operations Performed

  • Turning
  • Rotor facing
  • Drum boring

Quality Control

  • Spindle run-out measured with the Change Adapter fitted before shipment
  • Surface finish checked on a test rotor after a single pass
  • Twin cutter alignment verified so both faces are cut to matching thickness
  • Servo drive and feed motors tested through the full variable speed range
  • Machine run in and a sample rotor and drum machined before packing

Customisation Options

  • C9350 C9370 or C9372 selected from the rotor and drum sizes you machine
  • Adapter package specified for the hubs and composite rotors in your market
  • Cutter tip package supplied with the machine
  • Supply voltage and frequency set for your market
  • Manual and control labelling prepared in your working language
Comparison

How It Compares With the Alternatives

Drum and disc brake cutting lathe C9350C / C9370CThe C series cutting lathe uses belt speed changes and a mechanical feed; this range adds DC servo drive twin cutters and the Change Adapter system for faster changeover
Single cutter brake lathesCutting one rotor face at a time doubles the machining time and risks unequal thickness between faces; the twin cutter tools work both faces together
Replacing rotors and drumsA one pass finish on a rotor that still has thickness left is far cheaper than a new set of parts on every brake job
Use Guide

Running the Machine

Step 1

Measure the rotor or drum against its service limit before machining

Step 2

Fit the correct Change Adapter for the hub rather than assembling bell clamps and cones

Step 3

Mount the part and check it runs true before cutting

Step 4

Set an infinitely variable feed for the rough cut

Step 5

Bring both twin cutters onto the rotor faces and take the first pass

Step 6

Reduce the feed for the precision finish cut where the surface needs it

Step 7

Measure the finished thickness and return the adapters to the top storage tray

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FAQ

Questions About Brake Disc Lathe C9350

What is the difference between C9350 C9370 and C9372?

They cover different rotor and drum capacities. Send us the largest rotor and drum you machine and we will confirm which model suits your work.

Do I still need bell clamps and cones?

No. The Change Adapter system eliminates the need for conventional bell clamps and cones, and built-in springs keep the adapters with the machine.

Can it machine composite rotors?

Yes. The variety of adapters lets you machine standard and composite rotors for foreign and domestic cars and light trucks.

Does it cut both faces of a rotor at once?

Yes. Precision twin cutter tools work both faces, and the positive rake cutter tip angle gives a one pass finish virtually every time.

Can it do drums as well as rotors?

Yes, with a quick drum to rotor changeover, and separate motors on the drum and rotor feed keep the main motor efficient on either job.

What are your payment and trade terms?

FOB CFR and CIF. Payment is 30 percent by T/T on order and 70 percent before shipment, or an irrevocable L/C at sight.

What spares should I stock?

Cutter tips are the main consumable. Tell us your monthly brake volume and we will propose a starting quantity with the machine.

Request a Quote on the Brake Disc Lathe C9350

Send us the work you need it to do, the voltage on your site and the port you ship to. We will come back with the model, the tooling and the lead time.