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Graham Thomas, managing director of Broadbent Stanley, noticed a tired-looking Tacchi CNC lathe during a customer visit to Romania and decided it was ripe for refurbishment.

A deal was struck and Thomas departed for the UK as the owner of a 2m Tacchi oil country lathe.

Founded by Giacomo Tacchi in 1926 and based in Italy, Tacchi still prospers today as a manufacturer of large capacity lathes.

The machine purchased by Thomas has a 13in (330mm) spindle bore, a size favoured by oil-related repair shops.

It was the 45in (1150mm) swing model, which was manufactured in the early 1980s and fitted with a Siemens CNC control, Arriving at Broadbent Stanley’s Quarry Works on the outskirts of Halifax, the machine was powered up and a detailed survey of its condition took place.

The technicians tasked with the rebuild noted that although the 25-year-old machine had been well used, all the major component parts were basically sound, as was the headstock, so the full disassembly began.

No problems were found in the headstock, which was fully refurbished to Broadbent Stanley’s exacting standards, although a marginally worn selector and idler gear were replaced.

‘We build the same care and quality into our remanufactured machines as we do new,’ said Thomas.

‘Due to the very nature of a heavy duty machine, customers only buy them for heavy machining operations, so they have to stand up and be reliable, that’s why we offer the same 12-month warranty with our remanufactured machines.’ While the headstock was being rebuilt, the bed and rack with double pinion to the Z-axis were reworked and the ball-screws re-engineered to ‘as new’ condition.

New, up-to-date electrics were installed along with the latest Fanuc GE 18iTB control featuring manual guide with tool retract and recover cycle, a must for the repair of oil threads.

Fanuc high torque spindle and axis drives were also fitted.

The four-position Barraffaldi turret was also stripped and re-engineered as new and will be supplied with new toolholders as standard equipment.

The tailstock complete with a powered quill needed minimal attention, as did the steady rest.

Both three and four jaw chucks are available and the machine has been brought up to the latest European safety standards and fitted with an electrically interlocked sliding chuck guard.

Now completed, the machine can be viewed at Broadbent Stanley’s Yorkshire premises and can be tailored with further optional equipment to suit customer needs.

Broadbent Stanley

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