E-Tech — Grinding machines and parts

Start with the workpiece

For EGI, EGM, EGP, EGA, EASY, ECG, EDG, EGV, send a part drawing with the surfaces to be ground clearly identified. The starting information is operation, workpiece dimensions and material, required accuracy and production volume.

Distinguish the incoming blank dimensions from the final dimensions required after grinding.

Include material, heat treatment and actual stock allowance. An existing operation sheet is particularly useful because it connects the machine choice with workholding, inspection and the preceding manufacturing operations. Mark the drawing revision so that everyone evaluates the same part.

Identify the complete machine

For an existing machine, copy the full model designation from its nameplate, including every suffix. Provide a photograph, serial number, manufacturing year and the cover of the operating manual. Use that same designation across the enquiry and the parts schedule.

A family name identifies the catalogue range; it does not describe every installed configuration. If the machine has been retrofitted, list replacement drives, controls and added devices. Photographs of the current equipment help distinguish its present configuration from an older specification.

Check the envelope and workholding

Compare the workpiece dimensions with the selected model’s working envelope. Include projecting features, chuck, arbor, centres and fixture. Where the machine specification requires it, calculate the combined mass of the part and its workholding equipment.

Show the locating datums and wheel access on the drawing. Identify surfaces that must be finished in one setting and operations that permit reclamping. This gives a meaningful basis for comparing configurations beyond the largest diameter printed in a catalogue.

Define accuracy and inspection

Specify dimensional tolerances, form, relationships between surfaces and surface finish separately. Supply the inspection method used at your plant or a sample inspection report. Mark different requirements directly against the relevant surfaces on the drawing.

Display resolution, feed increment and finished-part tolerance are different specifications. The equipment enquiry should state the result required on the workpiece, the method used to verify it and the proposed conditions for an acceptance trial. This avoids comparing unrelated catalogue figures.

List the required components

Typical enquiry subjects include spindle, drive, guideways, dresser and coolant system. Identify the component and its position on the machine, with a part number or an item reference from an assembly drawing. Give each requested component its own quantity and line in the enquiry.

Photograph the complete marking, mounting points, connectors and surrounding assembly. If the part is unavailable for inspection, provide a spare-parts drawing with the required position highlighted and the assembly number visible. State whether you need the individual item or a complete assembly.

Quotation scope and catalogue limits

Stock, price, lead time, dealership status, origin, warranty and compatibility are not assumed in advance. Part numbers, configuration, documents and applicability are checked for the specific enquiry; price and lead time are provided with the quotation. Catalogue limits apply to the named models, while options require separate agreement. Display resolution or a catalogue capacity is not a promise of finished-part performance for every application.