TPT May 2011

T echnology U pdate Two-stage honing efficiency

4m (13.12ft) stroke length and the 10m (32.81ft) stroke HTG-10000. Built-to-order machine sizes include 6m, 8m, 12m and 14m stroke lengths, and custom-length designs can be quoted. To save floor space, the HTG’s electrical panel is mounted with the hydraulic power unit. The power unit is designed for ease of maintenance with accessible components, an easy-to-clean tank, cleanable air filters on the oil heat exchanger, and oil temperature/level indicators on the machine and on the control. A new work base has an improved design sloped to the centre of the machine for removal of honing mud, and includes standard full- time coolant flush. This means operators spend less time shovelling out the base of the machine during high production runs. The HTG features a new easy-to- use Siemens PLC touch-screen control system with zero shutoff, feed pressure control, cross hatch angle calculator and a joystick to allow the operator to move the honing tool over the stroke length. The new control system features complex software to maximise process efficiency in the background while providing easy-to- use, intuitive touch-screen operation. The power of the hydraulic system is controlled with precision, enabling better control for tough parts such as blind bores and shoulders. A load meter enables detection of tight bore conditions, and the bore profile is included on the display. Other features designed to increase productivity include feed system soft start, and integral load meter and recommended settings based on part dimensions and material. Sunnen Products Company – USA Fax: +1 314 781 2268

for maximum efficiency. The system can deliver up to 40hp (29.83kW) to the spindle and up to 18hp (13.42kW) to the tool stroking system, for metal removal rates of 3,500cm 3 /hr (200+ in 3 /hr) using super- abrasives in steel as needed. For increased speed and accuracy, the HTG uses a new precision hydraulic feed system that combines the brute force of hydraulics with the finesse of a sophisticated control. This includes servo position control of the feed system actuator, electronic pressure control, closed loop feedback and ability to operate both standard tooling as well as two-stage tooling. The machine features a 30.48m/ min (100ft/min) maximum stroke velocity, 0-300rpm spindle, and a tool feed force of up to 11,200N (2,500lb). The new servo system on the feed axis provides increased accuracy, as well as improved maintenance, service and setups with no tuning required. Another upgrade is a next-generation two-stage hone head capable of roughing and finishing without changing abrasives. The two-stage hone head is available with conventional abrasives or super-abrasives. The US-made HTG is available in two standard model sizes: the HTG-4000 with

SUNNEN’S new HTG series tube hones are designed as oil field workhorses with high-volume throughput and increased part capacity. The standard HTG-10000 is capable of handling standard part lengths up to 9.14m (30ft) and weights up to 8,000kg (17,600lb). The HTG’s ID range is 50.8 to 609.6mm (2" to 24"), double that of previous generation machines, with an OD capacity of 660.4mm (26") standard, and up to 1,219.2mm (48") as an option. The machine is suitable for instrument piping and down hole equipment applications, such as pumps/motors and hangers, and large hydraulic cylinders like those found on offshore oil platform stabilisers. A new proportional load control hydraulic system enables maximum utilisation of hydraulic power, delivering power where needed during operation

The HTG series

Email: sales@sunnen.com Website: www.sunnen.com

New and second hand machinery

EUROMAQUINA is committed to the steel processing industry, focusing on sheet, profiles and tubes, and bars. The company has supplied new and used machinery, and also the handling and integration with its own engineering and service, in more than 25 countries. The main special feature of Euromaquina is the combination of its own workshop for assembling and revamping machines and the representation of leading machine manufacturers. The company is more than an agent and more than a machine dealer:

it has the back-up from its partners for upgrading and spares, and can revamp – mechanically and electrically – first class European machinery. The company also offers set-up assistance with its service team, and the design of foundation drawings, layouts and modular developments. Euromaquina’s wide range of machinery includes: for sheet – slitting lines, CTLs, levellers, plasma and laser cut; for profiles and tubes – profiling lines, tube mills and revamped tube mill components (uncoiler, welder, cut-off, packaging machine); finishing

lines – straightening, bevelling; and for bars – finishing bar lines (peeling, polishing). The company has also developed the following products and services: modular and customised handling devices (entry tables, roll-ways, outlet cradles, storage systems); revamping or integration projects; and upgrading and automation of used machinery (straightening, peeling). Euromaquina SA – Spain Email: comercial@euromaquina.com Website: www.euromaquina.com

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M ay 2011

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