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BSA Tools

BSA Tools

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About BSA

With over 3 centuries of machine tool making history, early BSA dates back to the time when five Birmingham gunsmiths under the leadership of Sir Richard Newdegate manufactured 200 Snapshot muskets per month at seventeen shillings per piece (1692).  Three hundred years later, BSA Tools Ltd successfully purchased the assets and manufacturing rights to the Churchill range of CNC Turning Centres. This includes the new and advanced technologies surrounding the Omega range of machines and turning centres. It also brought back together the three household names of British manufacturing – BSA, Churchill and Herbert (1992). Between 1994 and 2017 BSA had gone though various guises and ownership’s and in January the intellectual property was purchased by the management of PGS Global Logistics and returned to its original name of BSA Tools Ltd where we are today on the original site, supporting all the companies past products and future developments.

The Omega range

Omega, a name uniquely symbolic for precision, quality, accuracy and split second timing. Omega is also the unique symbol used in a vast array of engineering formulae to represent angular velocity, a factor closely associated to power and torque.That’s why we have named out new generation of Churchill CNC Lathes Omega. These too, will become synonymous for quality throughout the world’s machine tool industry and they possess unique qualities that, when part of your manufacturing equation, will produce the results that are essential to your company’s future.Results that will bring gains in productivity, quality, manufacturing flexibility and machine utilisation while operating costs, work-in-progress and down-time are reduced. The net gain of improved profitability having far wider significance and importance to your company than the simple resultant of individual gains and losses would suggest. So, too, with  the Churchill Omega, expert design, based upon nearly 100 years of Lathe manufacture, combined with a thorough understanding of market  requirements and applications has resulted in a machine specification and performance that far belies its summation of individual components. Components of the highest quality that have been carefully selected and thoroughly tested to ensure that they are fit for the purpose specified by the Omega design team.In developing Omega, our aim has been to provide a range of CNC Lathes that can satisfy the spectrum of turned parts requirements. Whether the application is a small sub-contract shop where speed and ease of set-up together with high versatility are the critical requirements, or a major manufacturer where large batch or dedicated component production is the norm and minimum production time is essential.That’s why modular design and build concepts have been utilised throughout all aspects of the Omega range to ensure that your requirements can be met precisely and at a justifiable cost. Such in the extent of Omega’s modularity that features such as C Axis, driven tools, auto tailstock or even a second spindle can be added.In bringing a new range of machines onto the market, we have also aimed to provide the user with even greater levels of performance, whether it be in the form of coast-effectiveness, reliability, manufacturing capability or turning technology. Omega’s Y Axis, for instance, is among the most powerful and versatile of those offered by any Lathe manufacturer today, while the Omega TWIN is outstanding in the market place for the automated, first and second operation production of turned parts, particularly those of slender form which require the use of tailstock for support.The Churchill Omega- 65 or 76mm  bar capacities in single or twin spindle configurations – an advanced range of modularly designed and built CNC lathes to suite the 21st century production requirements.

Control

In recognising the differing requirements and preferences of the wide and diverse range of industries in which the Omega will be employed, the Churchill design team has interfaced the latest CNC system from two of the world’s leading suppliers- Fanuc system, such as 30 i-b or for those preferring Siemens the standard Omega can be configured with the 840.

Linear ways

Heavy duty, pre-loaded linear motion guides have been utilised on all of the Omega’s slidways to ensure that even the closet tolerances and most precise surface finishes can be machined. Compared to conventional sliding machine tool ways, tests have shown that the use of linear guides can double the positioning accuracy and improve axis repeatability by a factor of  1.5 to 2.

Their inherent low friction co-efficient combined with the use of highly responsive digital servo drives enables the Omega to reach rapid traverse rates of up to 24m/min within 0.13 seconds.

In total, an axis drive/guide package which provides excellent stiffness, damping and motion characteristics to enhance component accuracy, repeatability, consistency and surface finish.

Turret

Excellent swarf fall-away and good all- round accessibility within the working area are features of Omega’s vertically mounted turret configuration. Each of the turret’s 12 stations can accept external or internal VDI turning tools while coolant, in keeping with the omega’s precision and overall clean lines, is supplied through the turret direct to each tool. Turret indexing is continuous and bidirectional with shortest path positioning being a standard feature. A factor contributing to the Omega’s outstanding reliability and durability is the non-lift mechanism of the turret  – all locking, unlocking and disengagement from  the turret disc during indexing taking place within the turret housing.

Bed

The high rigidity and thermal stability required to provide  the levels of machining accuracy and surface finish demanded by today’s discerning production engineer has been achieved  on the Omega by the use of a synthetic polymer resin bed. This material has been used ver successfully for many years on precision grinding machine tools and has now been developed for use in the high productivity environment typical of Omega applications

Omega’s superiority over conventional cast iron and steel bed structures can be found in significantly improved damping qualities. This leads to improved dynamic performance and hence provides a more predictable higher quality component surface finish, which is enhanced by the free fall swarf afforded by vertical orientation of the bed.

Y Axis

One of Omegas most outstanding features, this powerful third linear axis is used in conjunction with omega C axis to perform a range of off-centre second operations. Unlike the compromised arrangements offered on other machines however, Omega’s Y axis is a true linear axis incorporated as a horizontal slide between the ‘Z’ carriage and the ‘x’ tool slide.

Omega’s Y axis, therefore, has all the attributes associated with primary axis such as a long stroke, powerful thrust, high rapid traverse rate, excellent rigidity and absolute precision. In fact, when accuracy is the prime requirement, the use Omega’s Y axis is the only solution in the majority of cases.

C Axis

The generation of flats, helical grooves, polygons, circumferential face slots, spiral grooves, and other non-round forms all require the use of CNC controlled spindle. On the Omega, the C Axis control is achieved by driving the spindle main drive motor in conjunction with a high resolution encoder on the spindle. A C Axis feed range of 1 to 200 rpm is thus available.

When the spindle is required to be indexed for machining second operation features such as PCD holes, cross holes and keyway slots, the Omega’s C Axis can be used to locate the spindle in any one of the 360,000 positions.

Auto Tailstock

Mounted  on the lower bed ways, Omega’s optional auto positioning tailstock can be used as and when required to provide support to shaft type components and slender bar fed work, easily positioned, the tailstock body may be traversed either manually, by use of the push button switches mounted on the operator control station, or automatically within the part program.

Tool Setting Probe

Saving of up to 15 min of turret set-up can be achieved with Omega’s headstock mounted tool setting probe. By using this probe to measure the position of the tool point, the operator need no longer resort to cut and teach programing methods during set-up and can be sure that components will be cut to size first time. The tool’s measured X, Y and Z co-ordinates are compared with a reference datum, and any differences are entered automatically into the CNC as tool offsets.

Driven Tools

Used in conjunction with the C Axis option, Omega’s powerful and versatile driven tool capability permits both axial and radial VDI live tools to be places at any of the turret’s 12 stations.

The Omega machines utilise a constant power arrangement which provides a useful 5.5 kW of power up to 4500 rpm on the Omega 65 and 80. Tool holders are available with either a down-gearing ratio to give higher torque or up-gearing for operations requiring speeds higher than standard 4500.

Ancillary Equipment

Quite naturally, you will want to equip your omega with a variety of ancillary equipment and tooling in order to maximise its performance. You will also want to feel confident that any equipment chosen will be suitable for use with the Omega. That’s why we have carefully selected and tested the range of items that we offer to ensure their fitness for purpose.

Equipment that includes high speed, hydro-static bar feeds, automatic component loading/unloading devices such as overhead gantries and free standing robots and post process gauging equipment.

In Process Gauging

In addition to the headstock mounted tool setting probe, an in process turret mounted probe may be used to record the diametral and longitudinal dimensions of the component.  Any differences between those recorded and the programmed command dimensions are automatically corrected by the CNC control system

Post Process Gauging

The custom-built gauges normally include one or more measuring plugs for single or multiple measurements and a processing and controlling amplifier. Any dimensional deviation recorded by the gauge is fed back into Omega’s CNC control which applies the required amount of offset needed to the tool in question, thus maintaining the component’s size within specifications.

Force, Temperature and Tool Wear Monitoring

Optimisation of the actual cutting process and minimising the risk of any serious damage, should anything unwanted arise, are the major benefits to be gained from the use of force monitoring equipment.

Tooling

A number of different tooling systems can be utilised on the Omega range the choice depending upon your individual preferences and requirements. As standard, the Omega turrets accommodate tooling to VDI standards and as such, they can be easily adapted to accommodate modular tooling systems. This may be necessary when you wish to integrate an Omega into existing manufacturing cell which is already using universal tooling system or when you wish to install an automated tool handling system.

Equipped with OSG Tools

Omega CNC lathe is offered with best in class cutting tools from OSG. The tool No.1 in Japan.

Special features using Hommel Keller

Mirror finish burnishing, knurling and marking is best with Zeus tools from Hommel Keller.

Blaser Liquid Tool

Boost you productivity with Omega CNC lathe using the Liquid Tool from Blaser. Make your cutting environment at peak as cool as the Swiss Alps.

Omega Nex Flow

OMEGA/NEXFLOW "Beat the Heat"

To operate in hot weather while maintaining the level of accuracy the use of polymer composite bed is ideal. However, the OMEGA is geared with NexFlow cabinet coolers to protect controls by keeping temperatures down.  The OMEGA/NexFlow comes with set of NexFlow compressed air operated components for machine and operator benefit.

  • Cabinet coolers
  • Vortex tool coolers
  • Mist coolers
  • Drum Angel
  • Hand Vac
  • Deep hole cleaner
  • Air Amplifier (for extraction of mist and fumes)

If you are machining in Sahara desert, no problem!

Available Options include

  • Foot pedal for chuck or tailstock
  • Power operated sliding guard
  • Dual chucking pressure (hydraulic)
  • High pressure coolant
  • Component vee support arm (adjustable) tailstock mounted
  • Work catcher
  • Fume extraction (Filtermist, Nex-Flow)
  • Automatic loading/unloading by robot/gantry or special device
  • Automatic tool changing utilising most block tooling systems
  • Turret mounted “inspection” probe
  • Headstock mounted “Tool setting” probe
  • Bar pulling equipment
  • End of bae detection equipment
  • Steadies

Specifications