Suitable Batch Quantities for CNC turning 


What is a suitable batch quantity for our machine shop?

Typical batch quantities in our machine shop are 100, 200, 300, 500, 1000,1500, 2000, 3000, 4000, 5000. We do not normally find that we manufacture in quantities above those shown because CNC machine tools are not cost effective in this range.

What is the smallest quantity we will manufacture?

We often manufacture quantities from 50 upwards although we will manufacture smaller batches under the following circumstances. We are prepared to supply in quantities as low as 10 off if the requirement is part of an annual call off where the setting up cost can be amortised over the total batch and order cover is given for the complete batch.

Typical Lead Time


What is a typical lead time from receipt of order to delivery?

We normally quote 3-4 weeks but can possibly be improved, if you call us at time of order placement we will be able to advise our best delivery.

Typical Materials


What materials do we have most experience in machining?

We are most proficient in the turning of the following materials:

*  Stainless Steel 316, 303, 416.

*  Aluminium Alloy 6082T6, 2011T3

*  Brass CZ12I, CZ122, CZI12

*  Mild Steel ENlA EN9 EN32M EN24T USACASE 32M Steel.

*  Nylon, Acetal/Delrin, PTFE, PEEK, Polycarbonate & ABS

Delivery to Schedule Requirements

“How do we perform as a company?”

D.R.N.Engineering has an excellent reputation for delivery goods on time in accordance with order requirements. It is company policy to only quote achievable delivery dates to ensure that our customers come back to us time and time again. Some of our customers have been with us since we started 35 years ago.

Quality Approvals

What Quality Approvals do we have?

We are IS0 9001 approved and are audited regularly by BSI to ensure that we are keeping our production control systems and documentation up to date. We are also willing to incorporate any special requirements that you may have such as SPC inspection on critical dimensions. You are welcome to visit our factory and to see for yourself the excellent system that we operate.