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Fives Grinding | Ultra Precision
Cranf ield Precision EcoR1664

Cranf ield Precision EcoR1664

Product catalog summary

Overview
The document provides technical specifications and features of the Cranfield Precision EcoR1664, a high-accuracy diamond turning machine designed for the production of ultra-precision optical components. It emphasizes the machine's optical quality diamond turning capabilities, outstanding thermal stability, and high system stiffness and damping.

Specifications

Workpiece Capacity: Diameter of 410 mm (16”), Length of 2,200 mm (86.6”), and Weight of 1,000 kg (2,200 lb).
Control System: Cranfield Precision CNC6400 Delta Tau, compatible with FTS.
Environmental Control: Hydrostatic oil temperature control and microclimate oil shower temperature control both to 0.01 °C, with 1 Micron repeatability.

Machining Capacity

X Axis (Tool Infeed): Axis stroke of 205 mm (8.1”), compensated accuracy of <0.5 µm, feedback resolution of 1 nm, maximum linear motor force of 1,385 N, maximum axis velocity of 50 mm/sec (2 in/sec), and maximum axis acceleration of 50 mm/sec² (2 in/sec²).
Z Axis (Tool Traverse): Axis stroke of 2,200 mm (86.6”), compensated accuracy of <2 µm, feedback resolution of 1 nm, maximum linear motor force of 1,748 N, and maximum axis velocity of 50 mm/sec (2 in/sec).
C Axis (Headstock Spindle): Load capacity of 500 kg (1,102 kg), max speed of 1,200 rev/min, and axis resolution of <0.05 arc sec.
A Axis (Tailstock Spindle): Load capacity of 500 kg (1,102 kg), max speed of 1,200 rev/min, and axis resolution of <0.05 arc sec.
B Axis (Tool Spindle): Load capacity of 100 kg (220.5 lb), feedback resolution of 0.05 arc sec, and maximum torque of 40 Nm.

Key Features

Advanced 3D CAD techniques and FEA for design.
Stepped hydrostatic design with rail positioning for minimal roll errors.
EcoR machine cross-section designed for minimum roll error.
Used to pattern roll for UV cure process.

Contact Information
For further inquiries, contact via email at [email protected] or visit www.fivesgroup.com.

Catalog excerpts

HIGH PRECISION MACHINES GRINDING | ULTRA PRECISION Cranfield Precision EcoR1664 High accuracy diamond turning machine Ultra-Precision diamond turning drum roll manufacture • Optical quality diamond turning • Outstanding thermal stability • High system stiffness and damping

Open the catalog to page 1

The Cranfield Precision EcoR1664 roll turning machine has been designed for production level machining of optical quality components. Using Advanced 3D CAD techniques and FEA the EcoR1664 has been designed to have excellent thermal stability, high stiffness and damping. The main axis of the machine uses a stepped hydrostatic design with rail positioning that provides virtually zero roll errors in the tool infeed direction drastically reducing the majority of errors experienced on conventional lathes. CONTROL SYSTEM — Cranfield Precision CNC6400 Delta Tau ENVIRONMENTAL CONTROL — Hydrostatic oil...

Open the catalog to page 2

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*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.

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