SOLD! LORENZ LS-424 Re-Control Program

**Lorenz LS-424 CNC Gear Shaping Machine (Recertified & Fully Recontroled by Machine Tool Builders, Inc.)**

Machine Specifications:

CNC System & Power:
Number of CNC-controlled axes: 5
Number of CNC-controlled spindles: 1
All principal motions on the Lorenz LFS-424 will be fully controlled by the Fanuc CNC:
• 'X' – Radial movement of the worktable slide
• 'B' – Rotary cutter spindle
• 'C' – Rotary worktable
• 'Z' – Stroke position setting
• 'L' – Stroke length setting
Spindle power: 20.1 HP / 15 kW
Plant power: 460 VAC, 60 Hz
Load: 72 FLA
Disconnect rating: 100 A
Primary control voltages: 24 VDC, 120 VAC

Pitch Capacity:
Diametral Pitch: 3.18 DP
Module: 8 mod

Workpiece & Travel Capacity:
Max. external workpiece diameter: 16.535 in / 420 mm
Max. internal workpiece diameter: 14.567 in / 370 mm
Max. axial travel: 6.063 in / 154 mm
Max. radial center distance: 14.0 in / 355 mm
Min. radial center distance: –0.2756 in / –7 mm
Max. axial height from table: 18.3209 in / 465.350 mm
Min. axial height from table: 12.2578 in / 311.348 mm
Maximum face width: 4.724 in / 120 mm
Maximum stroke length: 5.393 in / 137 mm
Following Riser Data may affect capacities above; please correspond with us and watch this space further for additional data.
Riser Height (installed): 3.937 in / 100 mm
*Riser Height (optional): 7.87 in / 200 mm

Table, Cutter & Construction:
Worktable diameter: 15.748 in / 400 mm
Table bore: 4.921 in / 125 mm
Cutter spindle diameter: 3.937 in / 100 mm

Speeds & Feeds:
Stroking speed range: 100–800 SPM
Radial feed (inch): 0.0001–59.055 in/min
Radial feed (metric): 0.001–1500 mm/min
Rotary feed at 18" dia: 0.0001–56.69 in/min
Rotary feed at 458 mm dia: 0.001–1440 mm/min
Rapid traverse (radial): 59.055 in/min / 1500 mm/min
Rapid traverse (axial): 118.110 in/min / 3000 mm/min
Rapid cutter traverse: 1440 deg/min / 4 RPM
Rapid table traverse: 1440 deg/min / 4 RPM

Weight:
Machine weight: 18,739 lbs / 8,500 kg

Scope of Work & Recertification Summary:
General:

All work performed by Machine Tool Builders, Inc.
Full CNC recontrol with new FANUC system, new drives, new motors, new wiring, and a new electrical cabinet.
Machine, cabinet, guarding cleaned and repainted.
Complete mechanical and functional inspection.

Axes & Motors:

New servo motors installed on:
X axis
Z/L axis (elevation & stroke)
B axis (cutter spindle)
C axis (work spindle)
New Fanuc spindle drive and spindle motor.

Mechanical:

Motor flange, coupling, and pulley engineering & fabrication.
Removal of old servos and installation of new.
No major mechanical repairs unless required.
MTB will advise if mechanical issues arise — Notation.

Shaping Head:
Fully inspected; repairs only if necessary — Notation.

Worktable:
Fully inspected; repairs only if required — Notation.

Hydraulic System:
CNC interfaced to existing hydraulics.
New hydraulic hoses installed – Notation.

Lubrication:
CNC interfaced to existing lubrication system.
Issues will be reported if found – Notation

Coolant:
CNC interfaced to existing coolant system.

Chip Extraction:
CNC interfaced to existing chip extraction.

Electrical:
New electrical cabinet with all new IEC components.
New operator station.
Wiring inspected & repaired; reconnect via terminal strip.
All wire, conduit, flex, labels provided.
Electrical prints and parts lists generated in AutoCAD Electrical.
New servo power, feedback, and scale cabling.
Use of absolute encoders wherever applicable.

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New absolute scale installed if an axis previously used a scale – Included

Power requirement: 460 VAC, 60 Hz – Included

If the plant does not use a grounded wye system, isolation transformer required — Notation

Controls:

New Fanuc 0i-MF Plus CNC with 10.4" horizontal display – Included

Fanuc Alpha HVi digital servo drives & motors – Included

Fanuc Alpha HVi spindle drive & motor – Included

Shaping Software (MTB Conversational Platform)

Up to four sequential surfaces

Up to five cuts per cycle

Spiral or plunge infeed

Programmable rotary dwell

Digressive infeed

Inch/metric switchable

Spiral out of cut

Full M & G-code capability

Quick recut cycle

Automatic cutter indexing

Cutter & workpiece orientation

Clamp avoidance

Tailstock/clamping auxiliary sequencing

Slotting capability

Programmable elevation (range dependent on stroke)

Painting:
Machine and ancillary equipment refinished – Included

Tooling:
One cutter adapter, size and type TBD – Included

Documentation:

(2) Sets wiring diagrams (11×17)
(2) Operator manuals
(2) Spare parts & service manuals
(2) Copies PLC logic, plus backup media
(2) Sets of mechanical prints for MTB-made changes

Standards Compliance:
Electrical, mechanical, hydraulic, pneumatic, and safety work completed per ISO, IEEE, ANSI, DIN, NFPA, and customer specifications – Included

Options:

Cutter adapters: priced upon specification – TBD