Face Grinding Machine

High-Precision Industrial Face Grinding Machine | CNC Rotary & Double-Disc Grinders

This industrial face grinding machine is engineered for high-throughput, high-precision stock removal and flat surface finishing on metallic and non-metallic workpieces. Built with a rigid Meehanite cast iron base and thermal-optimized spindle assemblies, it maintains sub-micron dimensional stability during continuous multi-shift production. The machine accommodates both single-disc vertical rotary surface grinding and high-efficiency double-disc parallel grinding, serving as a core production asset compliant with ISO 9001 quality management standards and CE safety directives for automotive, hydraulic, and bearing manufacturing lines.

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Key Features

Thermal-Symmetrical Spindle Housing:

Liquid-cooled spindle jackets dissipate heat generated during heavy stock removal, preventing thermal drift over 24-hour continuous cycles.

Hydrodynamic/Hydrostatic Bearing Support:

Minimizes metal-to-metal contact on main spindles, reducing vibration and extending wheel life during interrupted cuts.

Closed-Loop Linear Scale Feedback:

Heidenhain glass scales on the vertical feed axis compensate for ball-screw thermal expansion in real time.

Automatic Wheel Dressing & Compensation:

Integrated diamond roll dressers execute programmed dressing cycles with automatic compensation applied to the CNC offset register.

Modular Workholding Interfaces:

Quick-change electromagnetic chucks or pneumatic diaphragm fixtures reduce changeover downtime between batch runs.

Product Range

Model Series	Configuration	Max. Workpiece Size / Diameter	Main Spindle Power	Typical Application
FGM-500R	Single-Disc Rotary CNC	Diameter 500 mm	15 kW	Valve plates, pump gears, saw blades
FGM-650R	Single-Disc Rotary CNC	Diameter 650 mm	22 kW	Connecting rods, brake discs, clutch plates
FGM-D600	Horizontal Double-Disc	Diameter 100 mm - 200 mm (OD)	Dual 30 kW	Piston rings, bearing races, ceramic seals
FGM-D800	Horizontal Double-Disc	Diameter 150 mm - 350 mm (OD)	Dual 45 kW	Heavy-duty industrial shims, transmission gears

Technical Specifications

Parameter	Specification Standard	Compliance / Certification
Bed Structure	Finite Element Analysis (FEA) optimized Meehanite cast iron (HT300)	ISO 9001 Quality Standard
Spindle Radial Runout	Less than or equal to 0.0015 mm	ISO 230-2 Calibration
Spindle Axial Play	Less than or equal to 0.001 mm	ISO 230-2 Calibration
Min. Downfeed Increment	0.0001 mm (Closed-loop linear scale feedback)	Heidenhain Glass Scales
Parallelism Accuracy	Less than or equal to 0.003 mm / 300 mm	ISO 230-2 Geometric Test
Surface Roughness Capability	Ra less than or equal to 0.2 micrometer (CBN wheel configuration)	Verified via Stylus Profilometer
Coolant Filtration System	Magnetic separator + paper tape filtration (10 micrometer rating)	Industrial Environmental Compliance
Electrical & Safety Design	Fanuc / Siemens 828D multi-axis control system	CE Safety Certification

Materials & Surface Finishes

Compatible Workpiece Materials

Alloy Steels & Tool Steels: 40Cr, GCr15, SKD11, W18Cr4V (Hardened to HRC 55 to 65).
Cast Irons: HT250, QT500-7.
Non-Ferrous Metals: Aluminum alloys, copper-beryllium bronze.
Advanced Technical Ceramics: Silicon carbide (SiC), alumina (Al2O3).

Achievable Surface Finishes

Flatness: Within 0.002 mm across full work envelope.
Parallelism: 0.003 mm parallelism tolerance on parallel-face components.
Texture: Directional or cross-hatch grinding patterns tailored for optimal fluid retention in sealing applications.

Applications

Automotive Powertrain:

Grinding transmission gear faces, oil pump rotors, and thrust washers.

Hydraulic & Pneumatic Components:

Precision sizing of spool valves, valve plates, and axial piston pump shoes.

Bearing Manufacturing:

Parallel face finishing of tapered, cylindrical, and spherical bearing inner/outer rings.

Tool & Die Industry:

Precision sizing of punch holders, die plates, and carbide inserts.

Quality Control & Inspection

Every face grinding machine undergoes rigorous verification protocols prior to crating:

Laser Interferometer Calibration: Positioning accuracy and repeatability verified per ISO 230-2 standards.

Dynamic Balancing: Spindle assemblies balanced in-situ to ISO 1940 Grade G1.0 limits.

Geometric Alignment Test: Spindle perpendicularity to table surface checked using precision granite squares and electronic levels.

Test Cut Verification: Sample parts processed under factory load; final dimensions audited on a Zeiss CMM before shipment sign-off.

Documentation & Media: Each machine shipment includes a complete geometric test report, CE compliance declaration, and an optional [Watch FAT Testing Video] documentation package.

Custom Manufacturing Process

Application Engineering Review:

Client submits part drawings, material hardness specs, stock removal rates, and cycle time targets.

Fixture & Automation Design:

Engineering team designs custom magnetic chucks, pneumatic clamping jaws, or gantry robotic loading interfaces.

Casting & Heat Treatment:

Meehanite castings undergo stress-relieving annealing and vibration aging to eliminate residual stresses.

Precision Machining & Assembly:

Guideways are precision-ground on large gantry grinders; scraping is performed manually where contact ratio exceeds 80 points / 25 square millimeters.

Factory Acceptance Testing (FAT):

Client or third-party inspection agency witnesses trial runs, geometric verification, and video audits at our manufacturing facility.

Technical Support & After-Sales Service

01/

Installation & Commissioning: Resident service engineers handle on-site leveling, geometric alignment, and utility hookups in compliance with local safety regulations.

02/

Operator Training: Comprehensive on-site training covering CNC programming, wheel dressing routines, and routine preventive maintenance.

03/

Spare Parts Availability: Critical wear items (spindle bearings, seals, wiper blades, drive belts) stocked locally in primary distribution hubs for 48-hour dispatch.

04/

Remote Diagnostic Assistance: Built-in Ethernet gateway allows factory application engineers to log into the CNC controller for real-time parameter troubleshooting.

FAQ

Q: What is the maximum stock removal rate per pass for hardened steel parts (HRC 60)?

A: Under standard coolant and CBN wheel configuration, the effective stock removal rate ranges from 0.02 mm to 0.05 mm per pass, depending on workpiece surface area and machine spindle power rating.

Q: How does the machine handle thermal growth during continuous multi-shift operation?

A: Spindles are equipped with closed-loop coolant circulation jackets. Additionally, the CNC control runs real-time macro compensation algorithms based on thermal sensors embedded in the headstock casting.

Q: Can this machine be integrated with an automated robotic loading cell?

A: Yes. The electrical cabinet includes standard M-code relay outputs, Profinet/IO-Link communication ports, and mechanical interface pads designed for integration with gantry loaders or articulated industrial robots.

Q: What coolant filtration rating is required to maintain surface finish specs (Ra less than or equal to 0.2 micrometer)?

A: We recommend a dual-stage filtration system combining a magnetic drum separator (for ferrous swarf removal down to 30 micrometer) and a paper band filter unit capable of 10 micrometer filtration.

Q: What information is required to generate a formal technical proposal and quotation?

A: Please provide the component 2D/3D CAD drawing, material composition, hardness range, initial blank thickness, target finished thickness, parallelism tolerance, and required annual production volume.

Q: What are the standard lead times for machine delivery and factory acceptance testing?

A: Standard configurations ship within 12 to 14 weeks from order confirmation. Custom automation tooling or specialized spindle configurations require 18 to 22 weeks, inclusive of pre-shipment trial machining.

Request a Quote

Submit your component drawings and production requirements to receive a detailed engineering proposal, cycle-time estimate, CE compliance dossier, and formal quotation within 24 business hours.
[Request Technical Proposal & Quotation] (Button Link)
[Download Complete Technical Specification Sheet (PDF)]

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