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BL Series Brake Lathe Industry leading combination bench lathe

BL31 (includes ACT / Digi-Cal 2.0 package, rotor capability, and bench) shown with optional adaptors Key features at a glance

OPTIONAL (PATENTED) % Oscillates speed to prevent buildup of vibration (chatter) % No bands or other devices required

OPTIONAL Digi-Cal 2.0

% Instantly measures drum or rotor dimensions and depth of cut % Calibration holds after power cycling BL33 (includes ACT / Digi-Cal 2.0 package, rotor capability, bench and dust collection hood) shown with optional adaptors

OPTIONAL Push button speed control Self-Aligning Nut % Push button control with % Speeds setup three working speeds % Prevents over-tightening % Eliminates belt changes and mounting errors Quick Change % Twin cutters pivot to quickly change from rotors to drums % No storing of head required

Disc/Drum Control Lockout % Eliminates potential “crashing” of machine % Warning indication reminder

STANDARD Dual LED Work Lamps % Adjustable lamps illuminate both sides of % Easy push button control

STANDARD Adjustable Feed Rate % Dial fast for rapid removal or slow for final surface finish % One-cut pass capable Anti-Chatter Technology with Digi-Cal 2.0

Anti-Chatter Technology eliminates buildup of vibration — stop chatter before it starts!

Hunter System Others

Oscillating speed Fixed speed

Anti-Chatter Technology (ACT) varies speed to Chatter can start when machining rotors at a fixed keep chatter inducing vibration from starting, resulting speed. This is similar to a how a moistened finger in a smoother surface finish. can make a crystal glass sing.

Oscillating Speed

Fixed Speed SPEED SPEED S

TIME TIME Smooth finish Rough finish from chatter

Digi-Cal 2.0 instantly measures workpiece dimensions % Quickly determines if workpiece should be discarded prior to machining % Instantly measures drum or rotor dimensions and accurately determines depth of cut % Calibration holds after power cycling Convenient adjustment and calibration

Speed control options Change from rotors ACT / DIGI-CAL 2.0 PACKAGE to drums in seconds! Push button speed % Push button control with Change from three working speeds rotors to drums... STANDARD Adjustable Spindle Speeds ... by loosening % Provides correct speed for all clamp , size removing rotor % No required setup, rotating twin cutter...

... set up Quick calibration for drum service assembly greater accuracy and extend drum bar.

DRUM ONLY MACHINES ALSO AVAILABLE

Choose the brake lathe tooling to suit your needs

STANDARD Positive rake % Provides faster cutting and reduced chatter Calibrates diameter Calibrates thickness % Features 3 cutting tips

% Calibrate drum and rotor procedures in seconds OPTIONAL % Calibration holds after power cycling Negative rake % More durable, longer life % Features 6 cutting tips Heavy-duty bench option makes brake service fast and easy

% Heavy gauge, all- construction gives extra stability % Rear backboard stores frequently-used adaptors within easy reach % Large chip collection funnel keeps debris off the floor

.hunter.com http: //www unter.com BL500 Set Up Configuratione-mail: Guide info@h

AX (314) 731-1776 TEL (314) 731-3020 F

Hubless Rotor

4 Quick 3 2 1

6 5

Composite Rotor

3 2 Chuck 1 Quick

Hubless Drum

4

3 Quick Chuck 2

1 Small Drums Only Hubbed Drum

Hubbed Rotor

Form 4076T , 3/02 Supersedes Form 5/99 BL500 Operation Tips Clean and deburr arbor shaft and ve Maintenance Clean Silencers Holders, daily rtical face, clamp cups, cones and all other adaptors, daily Wipe Rotor Silencer down adaptors 175-276-2 Rotor Silencer (Vented) Lubricate 175-185-2and machined Rotor Silencer Band main support surfaces 175-189-2Lubricate Shaft grease fitting, annuallywith anti-r (left side main housing) Drum Silencer Band (Non-Vented) dr ust preventative, weekly 175-186-2 (car) um boring Rotor Silencer Chain 175-187-2 (truck) bar grease fitting, annually (inside feed assembly cover) 222-38-2 (Non-Vented) Troubleshootin Problem g Symptom

Dirt Excess or rust on Solution arbor runout locking taper Taper on arbor and cleaned inside spindle Bent before must arbor arbor is installed. be Replace Arbor nut arbor. too tight Excess It workpiece is not recommended tighten to use Dirty or Workpiece. Hand tightena wronlyench runout warped workpiece to . All rust, grease from and dirt must Dirty or mounting su be cleaned dinged adaptors rfaces of workpiece. Adaptors must be kept replace clean. Reface Worn or chipped any damaged or insert adaptors. Rotate or Insert loose replace inser in tool holder t as needed. Insert Tool holder must be secure Poor loose in ly tightened surface into holder finish Tool holder . must be boring securely Dirt and bar. locked into chips under and tool insert holders Clean tool holder insert and boring is rotated bar each repositioned. Replaceor inser inser time Too t holder is high of a feed rate t if worn. Coarse feed rates passes and are used fine for roughing finish feed rates No stabilizer passes. are used used for Install proper stabilizer T stabilizers for workpiece, Chatte oo high of on other side see r a spindle speed . Refer to Spindle Operation Speed Selector Improper Manual Chart or mounting technique for recommended speeds. s Use the largest use clamping proper adaptors cups possible an for composite pieces d . BL31 Bench includes standard storage drawer (includes ACT / Digi-Cal 2.0 and convenient document holder. package, rotor capability, and bench) shown with optional adaptors

OPTIONAL Dust Containment System* % Designed to contain brake machining dust and metal particles % Access window allows easy viewing of work piece during machining

* Requires a conventional shop vacuum with 2.5" inlet hose. (Not supplied.) Expand the range of your vehicle applications with additional accessories from Hunter

PATENTED Hunter Passenger Car and Light Truck Adaptor Kits

Customize your Hunter Basic Adaptor Kit BL series lathe to match 20-1665-1 your service needs. Select Consists of hubbed and the appropriate adaptor adaptors covering a range kit to service most rotors, of applications fitting most drums and flywheels. passenger car rotors, drums and flywheels, including composites.

Dual QuickChuck™ Adaptor Kit Elite Cone Adaptor Kit 20-2614-1 20-2615-1 Consists of hubbed and Consists of hubbed and hubless adaptors and hubless adaptors covering a three-jaw chuck mounting wide range of applications system. Covers a wide for most passenger cars, range of applications for light truck and larger most rotors, drums and flywheels for passenger light trucks, including composites. cars, light trucks and larger light trucks.

STANDARD Dual QuickChuck™ adaptor Wrenchless self-aligning nut 175-423-2 76-377-2 % Ideal for use with % Eliminates over-torquing hubless drums arbor nut % Quick setup with % Works as arbor unparalleled spacer and nut centering ability Specifications* Popular Models

Rotor BL33 Disc / Drum lathe with ACT / Digi-Cal 2.0 , Diameter: 6" to 22" * bench and dust collection system Maximum Width: 5-3/8" BL31 Disc / Drum lathe with ACT / Digi-Cal 2.0 Maximum Thickness: 2" and bench Drum Diameter: 6" to 24" * BL01 Drum-only lathe with bench Maximum Width: 8" Maximum Weight 200 lbs. on 1" arbor: Spindle Speed(s): 85, 110, 175 rpm Feed Rate: .002 to .014 in/rev (infinitely variable) Motor: 1.5 hp Power Requirements: 115/230 V, 15/7.5 amp, 50/60 Hz, 1ph Shipping Weight: 525 lbs. (approx.)

* The max rotor and drum diameter is 19.5” with the hood installed. BL31 BL33 BL01

Models BL33 BL31 BL30 BL23 BL21 BL20 BL13 BL11 BL10 BL03 BL01 Rotor Capability % % % % % % Act/Digical 2.0 % % % % % % Bench % % % % % % % % Dust Collection Hood % % % %

Be sure to check out other literature for more 75.5" quality products from Hunter Engineering.

43" 47.25" * Some specifications may vary depending upon workpiece configurations or may require optional adaptors.

0720CH Form 7702-T, 07/20 Copyright © 2020, Hunter Engineering Company. Supersedes form 7702-T, 11/19 Because of continuing technological advancements, specifications, models and options are subject to change without notice.