Cylindrical grinding machine LC2000

for round barsfor shaftworkpiece

Product overview
The LC2000 laser cladding cylindrical grinding machine integrates a laser cladding unit into a CNC cylindrical grinder (based on the G3 model), enabling surface treatment and grinding finish in a single on‑machine one‑chuck operation. It supports build-up repair of worn or damaged areas, facilitating in‑house production to shorten lead times and reduce costs.

What is laser cladding
Laser cladding melts and deposits metal powder with a laser to form a coating on the workpiece surface. By integrating this capability into the machine, the LC2000 performs surface deposition and subsequent grinding in one setup. It can form coatings up to approximately 2 mm thickness depending on material and parameters.

Benefits

• Reduce setup operations by about 50% compared with conventional outsourced plating processes
• Cut process costs by up to 90% versus outsourced plating (results depend on workpiece and processing conditions)
• A hexavalent‑chromium‑free process reduces environmental impact and supports regulatory compliance
• One‑chuck, on‑machine workflow completes surface treatment to finish, shortening lead time and improving production responsiveness

Problems solved

• Production planning and management: reduce reliance on outsourcing to meet short lead times and urgent requests
• Finish‑process losses: lower rework from grinding damage or undersize
• Repair and remanufacturing: restore field parts instead of scrapping
• Surface function enhancement: impart application‑specific surface properties
• Environmental regulation compliance: prepare for stricter substance regulations

Use cases

• Finishing cylindrical workpieces: repair scratches and undersized features after grinding and return to finished condition
• Repair and reconditioning of hydraulic rods and rolls: build‑up repair of wear and damage to extend component life
• Pre‑treatment before plating or thermal spray: form base layers with laser cladding to shorten process and reduce variability
• Development of high‑performance surface specifications: select and develop powders to add wear resistance, corrosion resistance and adhesion

Example workpieces

• Hollow roll — material: S45C, work size: φ100×200 (wall thickness 4 mm)
• Machine tool spindle drawbar — material: SCM415, work size: φ35×750, clad area: φ20×600 (thickness 6 mm, hollow)
• Motor shaft — material: SCM415, work size: φ50×600
• Battery press roll — coating: cemented carbide thermal spray (HV1400), work size: φ120×1,000
• Rolling roll — material: SKD11, work size: φ50×600
• Spindle — material: SCM415

Notes
Standard metal powders can be used depending on the application to provide wear resistance, corrosion resistance and adhesion. The process does not use hexavalent chromium, contributing to reduced environmental impact and regulatory compliance.

Technical specifications

• Model: LC2000
• Center distance: 2,000 mm
• Table swing: φ320 [400] mm
• Height from floor to center: 1,080 mm
• Grinding diameter: 0–φ300 mm
• Center load capacity: 150 kg
• Wheel spindle: STAT BEARING® (fluid bearing)
• Wheel feed rapid speed: φ10 [15] m/min
• Wheel minimum setting unit: φ0.0001 mm
• Operation panel: TOYOPUC®-Touch
• Control unit: TOYOPUC®-GC70
• Power supply: AC200V (control voltage DC24V)
• Laser oscillator: diode laser (class 4)
• Laser maximum output: 5,000 W
• Laser product class: Class 1
• Torch type: swivel laser torch (rotation angle 0±45°)
• Powder focus distance: 25–30 mm