Lectraline LL3 - CNC Grinding Machine - Bryant Grinder

Originally conceived as an advanced, universal-type tool room grinder, the Bryant Lectraline LL3 has made its mark on many production floors, as well.

The most popular member of the Lectraline family, the LL3 swings parts up to 28" (711mm) diameter and grinds bores to 16" (406mm) in length.

The workhead may be swiveled up to 90° for tapers and rotary face grinding. A sine bar attachment is available to insure accurate angle settings.

The optional Bryant Power-Pivot® workhead permits CNC angle settings with a programmable resolution of less than one arc second.

Consult Factory for applications that exceed limits specified above.

Specifications and design subject to change without notice.
LECTRALINE® LL3
CNC GRINDING MACHINE

STANDARD FEATURES

Easy Operation
•  Minimizes Operator Training
Simple Modular Design
•  Standardized Tooling And Major Machine Components
Multi-Directional / Vector Grinding
•  Grind in Any Direction
Self-Diagnostics
•  Minimal Downtime
Fine Resolution
•  0.000010" (0.00025")
Productivity
•  Fast Cycles and Less Idle Time
Energy Efficiency
•  Uses Power Only On Demand
Less Downtime
•  Quick Setup and Changeover
Versatility
•  High Production or Small Lot Runs
Hydrostatic Slides
•  High Stiffness - Wear Free
Contour Dress and Grind
•  CNC Programmable Profiles
Push Button Size Correction
•  Size Adjustment Without Reprogramming
 
OPTIONAL FEATURES

Automatic Loading
•  Lower Production Time
Power-Pivot® Workhead
•  CNC B-Axis Control to 100°
In-Process or Post-Process Gaging Systems
CNC Wheel speed Control
•  Constant Surface Speed
Peak Motor Load Infeed
•  Ultimate Cutting Efficiency
CNC Orthogonal Dress
•  Constant 90° Diamond Contact to Wheel Contour
Rotary Contour Grind
•  For Grinding Non-cylindrical or Eccentric Surfaces
Manual or CNC Work Table Slide
Multi-Slide Arrangements Available
Stock Sensor
•  Crash Protection and No "Grinding Air"

Specifications
Minimum Bore Diameter   13mm   0.50"
Maximum Swing-Diameter   711mm   28"
Maximum Swing-Diameter Over Table   457mm   18"
Maximum Length of Bore 406mm   16"
Workhead Adjustment-Manual  
  Axial 19.5"   495mm
  Cross (optional) 14.75"   375mm
CNC Power-Pivot Option   100°  
Maximum X-Axis Stroke   14"   356mm
Maximum Z-Axis Stroke   20"   508mm
X-Axis Resolution-Standard   0.000010"   0.00025mm
Variable Feed Rates - X-Axis Zero to   600 IPM   15m/m
Variable Feed Rates - Z-Axis Zero to   600 IPM   15m/m
Maximum Workhead Speed 1000 RPM  
Work Drive Motors   3.7 kW   5 HP
Maximum Spindle Speed - Belt Drivel 30,000 RPM   
Maximum Spindle Speed - High Frequency 100,000 RPM   
Wheel Drive Motors 11 kW   15 HP
Wheel Drive Motors - High Frequency Max. 37 kW   50 HP
Approximate Net Weight 6818 kg   15,000 lb
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