Cheshire Seals & Components Ltd (Cheshire Seals), based in Warrington, has recently extended its workshop capacity with a new Harrison Alpha 1550XS manual/CNC lathe from Colchester Machine Tool Solutions.

Managing director Paul Wallace says: “We had an existing Colchester centre lathe which had been very useful to us, but we needed the machining flexibility that the Alpha could bring. We bought plenty of extra kit for the Alpha and from day one it’s been put through its paces. The machine is performing well and is certainly earning its money.”
Cheshire Seals is a family-run, independent manufacturer of machined parts in a wide variety of materials, ranging from aluminium to zirconium, taking in duplex stainless steels and nickel alloys, and many exotic metals, through to plastics and rubbers for seal manufacture. The company also takes initial customer design concepts and converts them into fully finished products, whether it’s a one-off prototype or a full production run.
Wallace adds: “We looked at other CNC machines but felt that the flexibility of the Alpha lathe and its various modes of operation within the Fanuc system were strong factors in our decision. We find that the machine torque is excellent for cutting harder materials, while the lathe has significantly improved our cutting and program creation times by using ISO programming and the eight-station turret.”
The 2 m between-centres Harrison Alpha 1550XS has a swing over bed of 554 mm and a 104 mm spindle bore. A large 15 kW motor allows spindle speeds up to 2000 rpm.
For further information www.colchester.co.uk

From accepting and programming any CAD file, to dynamic roughing and precision finishing, Mastercam 2019 Lathe from CNC Software provides a variety of techniques to turn parts as required. Available in the UK from 4D Engineering, Mastercam 2019 Lathe features a newly developed tool designer, turn-mill environments and multiple plunge functionality.

Tools can be built from 3D STEP models using the software’s tool designer, which is a function panel with tab-style navigation that provides a structured workflow similar to using a wizard. Users can define tools, assign them to operations, and view them when running ‘Classic Backplot’ and Mastercam Simulator.
Mastercam 2019 allows lathe users to run select turn-mill machine environments. Here, operators can experience automated job set-up and part transfer, full machine simulation, and simplified programming of C/Y-axis toolpaths.
A further newly developed feature is the lathe groove toolpath, which includes a multiple plunge option that permits users to rough-out a groove with rib cuts. Consistent tool pressure can result in better chip control and more even tool wear. Multiple plunge gives the option to machine ribs with a more aggressive feed rate than in initial plunges.
Additional functions of Mastercam 2019 Lathe include improved support for cross-centerline turning, and full integration of the PrimeTurning toolpath strategy from Sandvik Coromant.
For further information www.mastercam.co.uk

As one of the UK’s foremost exponents of machining plastic components, Hertfordshire-based Plastic Turned Parts continues to invest in its future. The recent arrival of two Citizen sliding-head lathes means that the company’s total investment in 2018 exceeded £400,000.

The two new machines, a Citizen L20 with its LFV technology and a Citizen B16E sliding-head lathe, bring the total number of CNC lathes to 11, all of which are used solely for the machining of a wide range of plastic materials. Plastic Turned Parts fills the volume niche where injection moulding is not viable due to time and/or cost restraints, or where the plastic material is simply not capable of being moulded.
“Everything we machine here is plastic and we are able to achieve much greater dimensional accuracy, with no concerns over shrinkage,” says Jonathan Newis, managing director. “Three of our Citizen machines have LFV technology, which is ideal for machining plastics as swarf can be controlled precisely.”
Growth at Plastic Turned Parts is coming from old and new customers across a diverse range of industries. One particular client has increased its requirement for two specific components from 50,000 each, to 150,000 each, and one of the two new machines will be dedicated to that work. This increase is down to strong global sales among its customers and a trend in reshoring parts.
“Customers are seeing distinct advantages to having plastic parts machined rather than moulded, mainly around cost and timescale relating to manufacturing mould tools, but also the consistent quality that machining can bring,”
says Newis.
For further information www.plasticturnedparts.co.uk