• Minimum disruption to your job floor - unlike other retrofits you do not lose the machine for several weeks or months. In fact, it stays exactly where it is.
• Conditions of lathe bed is immaterial as all the accuracy is within our new slides.
• Maintain use of existing jigs & fixtures - a large expense to replace for a new machine tool.
• The converted lathe is now a slant bed for maximum swarf removal.
• Our open designs mean easy access for routine maintenance.

What about threadcutting?

We install a high resolution encoder on the lathe spindle which enables all types of threadform to be produced. Indeed, one of the best applications for our system has been the conversion of hollow spindle lathes for cutting Hydril, VAM and API threads on oil pipe.

I have an exceptionally large, small, strange lathe, etc. Is it suitable?

Give us a challenge! We've converted over 70 different types including DSG, Ward, Herbert, Churchill, Warner Swazey, Mazak, Tos, Colchester ......

What about long bed lathes?

These are often used for machining critical end detail on long components such as hydraulic cylinders, threaded pipe, etc. In this case we can mount a short two axis unit to the lathe saddle where it can be positioned anywhere along the bed to suit different length components. Strange idea - but we've already proved it out many times over - it works!

What controls do you use?

Industry standard controls that are supported world-wide - the Vickers A2100, Fanuc 21i, Allen Bradley 9/230, Osai 10 series and the 8601. We are approved retrofitters for all these leading companies.

What options are there?

We fit manual quick change toolposts, bi-directional indexing turrets, spindle control, C-axis swarf conveyors, barfeeds, hydraulic/pneumatic chucks, work handling systems, probing, etc. Our modular approach means that you can order what you need now, and upgrade later.

With their large, heavy castings, these machines are ideal for a retrofit from Audit CNC Machine Tools.

We can upgrade your manual machine to CNC, or change an outdated CNC controller for the latest in ease-of-use technology from Vickers, Fanuc or others.

This results in:

• Massively reduced downtime.
• Far easier program writing and checking using on-board graphics and guided help function.
• Huge savings compared to the price of a new machine!
• Your productivity can also be substantially improved by the addition of an automatic tool turret. We have a range available which can also suit your existing toolholders.
• The slides can be re-ground if required, but if you're happy with your machine mechanics then that's even more money saved. Money from your bottom line.

We are proud to be the sole importer of Pragati products in the UK. If your old turret is getting you down or you would like to upgrade from a manual toolpost, we can help. Pragati products are expertly engineered but at a substantially reduced price to other quality manufacturers.

Products include:

Bi-Directional Tool Turret: A range of 5 models of rugged turrets to handle different power requirements.

These models feature 3-piece, face gear coupling (allows tool disc to be indexed without lifting and ensures high repeat positioning accuracy/rigidity) and a 'Parallel index' cam mechanism (allows fast and smooth indexing of heavy tool discs. Computer generated cam profiles ensure shock-free indexing action).

Power handling capacity at cutting speed V and tool overhang R:

Turret Model	Spindle Power P (kW)	Tool Overhang (mm)	Cutting Speed V (m/min)
BTP-125	40.0	240	100
BTP-100	28.0	200	100
BTP-80	13.0	180	100
BTP-63	6.0	150	100
BTP-50	6.0	100	100

Extra Low Center Height Model BTP-40.

This has a different mechanical construction as compared to the above higher center models. BTP-40 employs a 2-piece coupling; so that the tool disc lifts during indexing. These turrets can be easily mounted on the table of "linear indexing" type chuckers, which increase the tool handling capacity of these lathes. Problems of tool interference with rotating chuck or workpiece are also solved.

Vertical Tool Turrets.

The following is one of our Vertical Tool Turrets. These are electrically operated Uni.-directional turrets, and are available in 2 models VTP-250 and VTP-200. These are available with 4 or 6 indexing positions. Three piece coupling allows indexing without lifting.

Other products include: Hydraulic Copy Turning attachments & systems for special purpose machines and lathes, Hydraulic power actuators with rotary joint for Chucking applications

Copy Turning Attachments.

Copying slides are made in two varieties : Standard and Heavy duty. Standard Models CAT-130, CAT-80 and CAT-55. Heavy duty models CAT-175 and CAT-125. A variety of supporting equipments like hydraulic power pack, master holder etc. are available.

Power Chucking Cylinders, with Rotary Joint.

Available in 2 varieties
1. Models P-140, P-110, P-80, P50 and P-30
2. Models PS-150 and PS-130. Models of PS series are fitted with built-in safety valve.Coolant collector is standard with these models

Audit offer Cincinnati upgrades from Big Blue and 850 controls to the latest state of the art A2100 touch screen pendant control.

On both VC and HC versions of Cincinnati's long running quality machines.

Options Include:

• Control only upgrade.
• Control drives + motors + mechanical drive overhaul.
• Full refurbishment.

Work can be completed at customers site or full refurbishment at our Durham works. Collaboration with Vickers from initial concept to commissioning gives us the edge on a truly successful upgrade.

As a current user of OPG's you'll know how difficult it can be to find and keep skilled operators. How relying on 30 year old technology can mean low production targets. And you'd think that with all that technology out there, there must be a better way.

Enter the Audit CNC conversion for OPG. A full CNC conversion but with the original manual capability.

Easy to understand program screens, with full graphics, guide you through the grinding of a component.

Each component you machine can be stored as a 'grinding program' for instant recall the next time that job comes up. Massive program storage means every job can now be stored.

Electronic handwheels on both axes allow easy transition between manual and CNC.

Reduce operator fatigue and scrap with our video camera option. Linked to a 9" high contrast screen fitted in place of the projector hood and microscope.

• Increase production to meet new manufacturing targets. Unmanned operation frees up your skilled personnel for more demanding jobs.
• We can supply a complete machine and full training to have you in production within a few days.
• Or, we can upgrade one of yours.
• Either way, you'll be producing parts more consistently, accurately and on time. Reducing the need to subcontract and slashing delivery times to give better service to your customers.

1. Full Refurbishment.

Contrary to popular belief, our Audits don't quite last forever, but their life can be massively extended with a full refurb. Many of your machines have been double or triple shifted for 10 years or more. With a full refurb, we can turn the clock back to when they were first delivered.

The Audit is removed from the lathe and brought to our Durham works. Stripped to its component parts, the slideways will be re-ground and re-Turcited, internal and external harnesses will be replaced, lubrication system cleaned and repaired, and backlash removed from the ballscrews, etc. In short, everything we need to do to ensure another 10 - 15 years life.

2. Turret upgrades.

Upgrade you manual toolpost or worn-out turret to one of our new Pragati turrets. Available in 8 or 12 position, their unique Geneva cam mechansim means less moving parts and greater realiability. Solidly constructed, we can supply a range of standard & special tool discs to suit every application.