*mydirectindustry

Catalogs
Fives Grinding | Ultra Precision
Cranf ield Precision TTG 350

Cranf ield Precision TTG 350

Product catalog summary

Overview
The Cranfield Precision TTG 350 is an ultra-precision freeform machining platform designed for components up to 350 mm in diameter. It features twin turret generators and is suitable for grinding and ultra-precision applications.

Key Features

Hydrostatic rotary and linear bearings for enhanced stability and precision.
Aerostatic or rolling element grinding spindles for versatile machining options.
Linear motor drives for precise control.
In-situ measuring probe for real-time accuracy checks.
Patented configuration with a thermally isolated machine base.
Multiple grinding spindle configurations and tool normal or axis perpendicular grinding capability.
Cranfield Precision CNC 6400 control system for advanced operations.

Machine Capabilities

Form accuracy of less than 300 nm/60 mm P-V.
Surface texture capability of less than 1 nm Ra.
Turret accuracy of less than 1 arc second.

Process Options

Plunge mode for plano and spherical (concave/convex) surfaces.
Generate mode for concave/convex aspheres and spheres.
Freeform mode for surface generation.
Edging, chamfering, coring, flat milling, scooping, slicing, dicing, prism cutting/grinding, milling, diamond turning, hard turning, and pre-polishing.

Technical Specifications

Maximum grinding diameter: 350 mm (13.8 inches).
Linear axis stroke: 150 mm (5.9 inches).
Maximum workpiece weight: 25 kg (55 lb).
Tool spindle turret with a swivel range of +/- 135 degrees and hydrostatic bearings.
Maximum number of spindles: 4.
Grinding spindle bearings: Air.
Maximum wheel diameter: 140 mm (5.7 inches).
Maximum wheel width: 12 mm (0.5 inches).
Wheel surface speed: 100 m/sec (328 ft/sec).
Maximum grinding spindle power: 16 kW.
Maximum grinding spindle speed: 80,000 rev/min.
Work spindle turret with a swivel range of +/- 135 degrees and hydrostatic bearings.
Workhead speed: 1 - 3,000 rev/min.
Linear axes travel (infeed): 150 mm (5.9 inches).

Dimensions and Weight

Dimensions (W x L): 1,800 x 1,950 mm (5.9’ x 6.4’).
Machine weight: 3,500 kg (7,716 lb).

Contact Information
For more information, contact [email protected] or visit www.fivesgroup.com.

Catalog excerpts

Twin turret generator Ultra-Precision freeform machining platform for components up to 350 mm diameter • Hydrostatic rotary and linear bearings • A erostatic or rolling element grinding spindles • Linear motor drives • In-situ measuring probe GRINDING | ULTRA PRECISION Cranf ield Precision

Open the catalog to page 1

Aspheric and Freeform Generator The Cranfield Precision TTG 350 machine has the capacity to produce components up to Ø350 mm. FEATURES MACHINE PROCESS OPTIONS Hydrostatic turret bearings and workhead Air bearing grinding spindles Patented configuration Thermally isolated machine base M ultiple grinding spindle configurations Tool Normal’ or axis perpendicular grinding capability Cranfield Precision CNC 6400 control system MACHINE CAPABILITY — < 300 nm/60 mm P-V form accuracy — < 1 nm Ra surface texture capability — < 1 arc sec turret accuracy Plunge mode: Plano, spheres (concave/convex) Generate...

Open the catalog to page 2

All Fives Grinding | Ultra Precision catalogs and technical brochures

Archived catalogs

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

Brand list