Heavy duty 2-axis, 50HP CNC lathe introduced

Shown for the first time among CNC lathes at MACH 2006 was a heavy duty 2-axis slant bed 50HP lathe has turning length of 1800mm and diameter of 700mm, and is for large shaft work.
Ward Hi-Tech used MACH 2006 to confirm their position as one of the leading privately owned CNC machine tool distributors in the UK. With more than 60 models available from a portfolio of principal partners that include Doosan Mecatec of Korea, Dah Lih of Taiwan and CME of Spain the company showed a total of 10 CNC machines - including three new models. The Doosan S700 heavy duty 2-axis slant bed lathe from South Korea has a turning length of 1800mm and is ideal for large shaft work.

The S700 accommodates chuck sizes up to 762mm diameter with a turning diameter of 700mm whilst its 50HP main motor and three step gear box delivers full power from 63 rev/min - making it ideally suited for heavy duty machining.

The lathe is equipped with rigid 12 station turret accommodating 32mm2 tooling and up to 60mm diameter boring bars.

The control is the powerful Fanuc 18iT system, which can drive the option of a driven tool turret and spindle C axis control.

The S700L will be demonstrated machining a typical large shaft component from the aerospace industry.

Also shown for the first time in the UK was a Doosan S400 slant bed 2-axis lathe.

Specification includes maximum turning diameter of 400mm, turning length of 716mm, chuck size of 12in (optional 15in dia.) with a bar capacity of 76.5mm (optional 99mm diameter).

The S400 has a 12 station drum type turret, accommodating a standard tool size of 25mm2 and boring bar of 50mm diameter.

it is equipped with a 'P' type 30HP wide power main motor and has spindle speeds of 35-3500 rev/min.

A standard feature of the S400 is the unique Doosan machine management (DMM) software built into the CNC system.

This provides the operator with a comprehensive 'on screen' menu of production information including machining time, production sort, tool life sister tool management, operational status report and machine maintenance guidance information.

* High power turning - the Doosan S550 LG is built with a 50HP main drive incorporating twin range ZF gear box ensuring full power is generated at 158 rev/min.

With chuck size of 15in or 18in diameter, turning length of 1130mm, 12 station turret and heavy duty tailstock, the S550 was shown machining a typical oil industry component from Nimonics demonstrating the suitability of this particular machine of tackling the most arduous of materials.

* Low cost, 2-axis turning - completing the line up of Doosan 2 axis turning machines at MACH was the ever popular S280N.

This best selling small CNC lathe is suited to a wide variety of applications across every industry sector and every size of user! The S280N specification features a maximum turning diameter of 280mm and turning length of 330mm, chuck size of 8in with bar capacity of 51mm dia.

Built with rigid box ways, 10 station turret and 15HP main drive motor, the S280N will be demonstrating its ability to 'hard turn' an aerospace component to a 'super precision' finish.

* vertical turning lathe - Doosan are one of the world's major manufacturers of vertical turning lathes (VTLs) producing VTLs for many well known automotive and aerospace companies in particular.

The Doosan V740 is one of the most popular size models in the VTL range and was displayed in single spindle format.

The machine has a maximum turning diameter of 740mm, cutting length of 760mm, 50HP main drive with twin range ZF gear box and 12 station turret and can accept chucks up to 24' diameter.

* Multi-axis CNC turning - wo examples from Doosan's multi axis turning range were featured during MACH.

The six axis sub-spindle S310SMLY includes Y-axis turret arrangement together with C-axis control of main and secondary spindle.

Other features include 12 station VDI style driven tool turret, maximum turning diameter of 311mm and machining length of 750mm, 10in chuck with 65mm bar capacity.

The machine will be shown producing a replica 'U' drill from bar utilising all six axes of control.

* Twin turret, multi-axis turning - the Doosan Z290SMY is an eight axis, twin turret, twin spindle turning centre.

Both main and sub spindles are fully synchronised and can be fitted with a combination of chuck or collect chuck.

Twin 12 station turrets can accommodate up to six driven tools in any combination whilst main and sub spindles both have full C-axis capability.

Maximum turning diameter is 290mm and machining length is 580mm with bar capacity of either 66mm or 77mm diameter.

For the MACH presentation the machine was coupled with a magazine bar loader and shown machining from bar a replica collet chuck that can be taken away and used as a desk paperweight.