First launched in 2018, the common platform for the manufacture of two universal turning machines, the B400 from Index and TNA400 from its subsidiary Traub, has been expanded with the addition of the B500 and TNA500 featuring larger, more powerful spindles. The machines are available in the UK through sole sales and service agent Kingsbury.

Each machine shares much commonality, as the mineral cast bed, slide-ways and covers are identical. One difference is the control, the Index B400 and B500 being fitted with a Siemens Sinumerik 840D sl and the TNA400 and TNA500 with Traub’s Mitsubishi-based TX8i-s V8. Another distinction is that the main and counter spindles on the latest 500 series lathes are A11/A8, one size up from the A8/A6 spindle on the 400 series, and delivering 40% more power and torque.
In support of long workpieces, TNA lathes offer the possibility of using a tailstock mounted on roller guideways. As an option, the machines are available instead with a counter spindle for the complete machining of parts on the reverse end after part-off and synchronous pick-up.
Regarding the counter spindle versions, all machines are equipped with an Index radial turret. Newly added is the option of selecting VDI40 holders instead of VDI30, enabling a slightly larger turning diameter and providing the live tools with higher torque. The 12 tool stations are equipped with the patented W-serration, featuring a profile that ensures the holders can be aligned quickly and accurately. Alternatively, a turret with axially driven VDI40 tools can be specified on the TNA 400/500, which is advantageous when using large, solid drills or boring bars, as the forces are transmitted directly into the turret.
For further information https://kingsburyuk.com/

New from LNS is the Ultra 80 barfeed that features an oversized base frame complete with a 700 kg cast-iron support beam.

This mass helps ‘seat’ the barfeed in position, aiding machining quality by damping the vibrations generated by the rotating bar. The Ultra 80 weighs around 2 tonnes and remains stable even when long bars with a diameter of 80 mm and weighing over 160 kg are rotating.
Responding to customer requests, LNS has also designed a flexible front rest system to reduce the number of cases when users need to change the guiding elements. The front rest is an essential support element for the bar before it enters the lathe spindle, keeping it centred, while accepting a wide range of bar diameters. Automatic adjustment to bars of different diameters means the operator does not have to change the guide elements. The patented front rest is complementary to the hydro-bar principle and does not replace it.
A large colour touchscreen and numerous context-sensitive menus are supplied with the barfeed’s HMI, guiding the operator through actions. Highly graphical, this HMI offers a layout that allows users to directly access the information needed for increased productivity and safety, and provides messages and alerts with text and images.
The Ultra 80 is available in two versions, with internal ramp or external lift, to offer customers the configuration best suited to their requirements. The oversized insertion and extraction system is also equipped with a booster to suit all clamps available on the market.
For further information https://lns-group.com/

Haas says that its newly developed Haas Automatic Parts Loader (APL) is a simple and affordable way to automate part production and boost productivity on the company’s turning centres.

Connecting directly to the Haas control, APL is designed and built exclusively for use on Haas ST-10, ST-15, ST-20 and ST-25 turning centres, including Y-axis models.
The APL features a simple set-up interface that makes it quick and easy to realise automated loading and unloading. Answering simple questions, the operator enters basic information by either positioning the part grippers and pushing a single button, or entering basic numeric dimensions. All values are calculated automatically by the control.
Accommodating parts up to 147 mm diameter by 127 mm long, and weighing up to 4.5 kg, the APL features a light curtain for safe operation. Furthermore, component management on the APL table is achieved
using one of three included templates. Various part shapes – such as round, hex and square – can be loaded, and grippers can be adjusted or modified to best fit the specific parts.
Haas’ APL operates in the background during normal lathe operations, returning parts to the storage table and retrieving new raw workpieces while components are being machined. Near-continuous, unattended machining is the result. The double-sided rotating gripper saves time by taking a part from the spindle and replacing it with a different piece without having to return to the storage table.
For further information www.haas.co.uk

The recently introduced TTL Series from CMZ offers numerous possibilities to reduce cycle times. One of these functions is ‘superimpose’ machining.

With this function, the movement of the master channel (turret) is added to the slave channel (sub-spindle); in other words, it makes possible to machine two tool trajectories using the same turret station.
When the geometry of the part permits, it is possible to cut with four tools at the same time, performing a double-balance cutting process. One of the turrets and the sub-spindle (tool 1 + tool 2) will be programmed with the superimpose function, while the other turret will be programmed as a single trajectory (tool 3), and the second tool from this station (tool 4) will benefit from movement of the sub-spindle without the need to link an ISO code.
Four-tool simultaneous cutting is recommended for roughing processes in symmetrical parts. However, it should not be used in finishing operations as one of the tools is not controlled.
Programming a superimposed operation should not worry machine users, says CMZ, as several macros have been developed to ease calculation. Tool and work offsets will be transferred to the slave path before starting the combined machining movements. If users need assistance on how to program the TTL, the company’s Service Department can assist.
With CMZ’s ‘a star is born’ campaign, users can configure a TTL for themselves, and receive a made-to-measure offer using the company’s online calculator.
For further information www.cmz.com

Mills CNC, the exclusive distributor of Doosan machine tools in the UK and Ireland, has supplied a large-capacity vertical turning lathe to Unilathe Ltd, a precision subcontract specialist based in Stoke-on-Trent. The machine, a Fanuc controlled Doosan VT1100, has been positioned adjacent to another Doosan VT1100 machine to create a flexible, high-productivity vertical turning cell.

Components are typically machined in small batches, and are made from hard and difficult-to-machine materials that include titanium, Inconel and Jethete (a corrosion-resistant, hardened and tempered steel). A primary objective behind the new VT1100 investment was Unilathe’s desire, and determination, to secure new aerospace business.
Explains Andrew Sims, Unilathe’s managing director: “Our efforts have been [and are] focused on repositioning Unilathe in the sector. We want to move away from being perceived as a company that only offers first and second-stage machining of castings and forgings, to one that can machine and deliver high integrity components from start to finish to aerospace customers – similar to what we provide for customers in other sectors and industries.”
A strategic audit undertaken by the company examined its internal machining capabilities and revealed that its future aerospace ambitions would be well served by strengthening its vertical turning capacity and, in particular, by acquiring an additional vertical lathe adept at undertaking roughing, semi-finishing and finishing operations on aerospace components like rings, seals and rotor shafts.
Says Sims: “We are an advocate of Doosan machine tools; they perform well, are reliable and represent good value. The fact that they are backed by Mills CNC’s applications and aftersales service and support, makes them even more of an attractive proposition.”
For further information www.millscnc.co.uk