With its new high-pressure waterjet deburring system FlexJet HD, Karl Roll GmbH has developed an efficient solution for deburring and cleaning in one work step. Burrs and chips are easily removable, along with welding beads and layers of paint and scale. Individually adapted nozzle systems guarantee a high degree of workpiece versatility and, at the same time, high precision for reproducible results.

Deburring machined components is a challenge due to areas that are difficult to access, such as internal and intersecting holes, deep and small holes, undercuts, and blind holes. Karl Roll GmbH has developed the FlexJet HD series for these tasks. The system enables deburring and cleaning with a water pressure of around 500 bar in one work step.

The rotary table integrated in the treatment chamber of the new system can accommodate components with a diameter of up to 450 mm and a maximum height of 550 mm, while the maximum workpiece weight including the clamping device is 100 kg. These capacities make it possible to handle, for example, an engine block for a four-cylinder engine or several small parts.

For a precise and reproducible result, the workpiece can be rotated during the process as required and moved along the X axis. At the same time, the nozzles can move along the Y and Z axes. It is also possible to direct the water jet flat for deburring and cleaning larger surfaces.

State-of-the-art control technology positions the CNC axes. Users can program the process sequence offline using G-code and a teach-in solution via a 15-inch control panel. There is also the option of programming with a handheld terminal.

For further information
www.karl-roll.de

A Black Country manufacturer that puts the finish on boutique hotels, nuclear reactors and life-saving medical equipment has just completed its latest investment drive. Professional Polishing Services (PPS), which has increased its workforce by 25% since lockdown eased, has installed a new dull polishing line to help it boost capacity and achieve its target of £2m sales by the end of 2022.

PPS has spent over £250,000 on the latest purchase and this gives it the capability to apply a variety of finishes, such as dull polish and satin finish, on to stainless steel, aluminium, brass and copper sheet. The investment comes just two years after it took ownership of new extraction equipment, pick and place systems and two Autopilot PHA bright polishers with automated handling, acquisitions that were only operational for six months before Covid-19 struck.

“Like many firms, we’ve had to withstand some tough times over the past 18 months, but the recovery is now back on and we’re trying to put in place the technology we need to meet escalating demand from pretty much every sector, including automotive, construction, food and drink, nuclear and leisure,” explains Kirsty Davies-Chinnock, managing director of PPS.

“More than £750,000 has been invested in reinforcing our position as a market leader in the past three years and we’re confident this will play a key role in us achieving record performance over the next 12 months,” she adds.

The company’s reputation for quality – all processes are governed by ISO 9001 – and its commitment to fast lead times has seen it grow sales by £500,000 in the past 12 months, taking it to £1.7m by the financial year-end.

For further information
www.professionalpolishing.co.uk

Dustcontrol UK will be exhibiting its updated range of high-performance extraction equipment at Advanced Engineering 2021. Taking place on 3-4 November at the NEC in Birmingham, the Dustcontrol team will be showcasing the firm’s extensive range of both fixed and mobile cyclone-based dust extractors and air cleaners at stand L92.

The latest addition to the DC Tromb mobile extraction unit family, the Hepa 13 filtered DC Tromb Turbo offers optimum quality, containment and performance, says the company. One of the major updates is the three-phase turbo motor that has been added specifically to enable running for long periods without the need to switch off. The new model has also been developed with a thermal protector that activates at high temperatures, while a simpler filter change has been included for easier and quicker removal.
Another piece of equipment on show will be the DCF Immersion, a mobile pre-separator made for handling metals like titanium and magnesium and other reactive materials in a safe way. The material is sucked/transported through a neutralising fluid and collected in a fine net basket, staying in the fluid until emptied. The compact and portable unit offers easy transportation between workstations, while the mobile pre-separator is suitable for use with either a mobile dust extraction unit or centralised system.

Dustcontrol’s team will also be exhibiting its smart control panel, a compact and efficient control system for central vacuum systems and the majority of more complex installations. Attendees will also be able to get up close to the DC 11-Module, an optimised stand-alone centralised vacuum unit for source extraction and industrial cleaning.

For further information
www.dustcontroluk.co.uk

When a Polish manufacturer of complex steel weldments was ready to invest in a new shot-blast machine, quality, capacity, high equipment uptime and integration into the manufacturing flow were key selection criteria. As an essential part of the pre-treatment operation for a cathodic painting line, the new shot-blast system had to produce optimal surface preparation results within an interlinked work flow in a three-shift operation. The company chose a Rösler RHBD 17/32-K continuous-feed spinner hanger blast machine because of its wear-resistant design and favourable operating costs.

The specialty of Stelweld is the production of complex steel weldments, including machining, laser and CNC cutting and bending processes, as well as painting and powder coating.

Danuta Dobrzynska, project manager at Stelweld, says: “Within the framework of a recent expansion we wanted to automate the shot-blasting operation and integrate it into the painting line. To date, the paint preparation process was predominantly manual.

“Rösler does not offer the lowest price, but with regard to quality and technical features this supplier offered many advantages,” continues Dobrzynska. “Compared with competitor products, all essential components of the Rösler shot -blast machine consist of wear-resistant materials, such as the blades of the turbines, which are made from forged tool steel.”

The Rösler RHBD 17/32-K continuous feed spinner hanger blast machine allows the blast cleaning of a wide spectrum of 3D weldments with dimensions of up to 2500 x 1200 x 3000 mm (L x W x H) and weight up to 1250 kg. At cycle times of 6 to 8 minutes, the automatic shot-blasting process produces a finishing quality of SA 2.5 on the entire surface of the steel weldments to ensure excellent paint adhesion.

For further information
www.rosler.com

Guyson International has recently installed a Guyson Euroblast 7PF (Pressure Fed) blast system at Merlin Archery, a designer and manufacturer of tournament shooting archery bows. The blast cabinet delivers a uniform bead-blasted cosmetic surface finish on Merlin’s range of machined compound bows and enhances the surface topography of components before anodising.

The Euroblast 7PF blast system is from Guyson’s premier industrial quality range and delivers good component access, with doors opening to the front, top and side. This access facilitates the easy loading of components into the internal blast chamber, which in this instance has a width of 1480 mm to accommodate the longest of the aluminium compound bow parts.

Merlin Archery’s blast system comprises a Guyson Euroblast 7PF blast cabinet, model 75/16 cyclone reclamator, G27 pressure pot and Guyson C400 dust collection unit. The system delivers fast (up to four-times faster than suction-fed systems), effective blast finishing on a vast array of components. Large armhole sleeve/glove assembly allows the operator greater flexibility of movement when blasting, while external roof-mounted LED lighting coupled with light-coloured rubber curtain lining offers additional cabinet protection and good contrast for parts visibility.

The 27-litre capacity pressure pot generates the blast stream within the blast chamber, and when the full-width foot pedal is depressed it pressurises the pot and starts the blast operation. Similarly, releasing the pedal de-pressurises the pot and stops the process. Guyson’s 75/16 cyclone reclamator separates re-usable media from the dust, blast debris and undersize media, while the C400 dust collector filters out and collects the dust-laden air from the blast cabinet using a single-cartridge filter.

For further information
www.guyson.co.uk