HELLER H 14000 - Perfection in steel machining

By Niraj M Wanikar, Chief Editor, CNCTimes.com, 2015-03-13 13:51:18

The H 14000 is HELLER’s top highly-productive horizontal 4-axis machining centre model of the H series. This powerful machine with spacious work area offers, in addition to the extremely rugged machine construction, the rigidity and high torque required for machining high chip volumes in the hardest materials, such as alloyed steel and iron.

As a leading manufacturer of machining solutions, including for large diesel engine components, HELLER has developed, advanced and perfected the H series over many years. This series is ideal for machining large-scale pumps and housings for prime movers and turbo engines.

Even after a full day’s use for rough machining, series H machines still guarantee an axis positioning accuracy of 0.010 mm in the X, Y and Z direction (in accordance with VDI/GDQ 3441) for the subsequent finishing operation. This makes these machines the ideal solution for the highly-precise machining of large parts from alloyed steels that are difficult to cut.

As the top model in the H series, the HELLER H 14000 has an operating range of 2,400/1,600/1,600 mm in X/Y/Z with a pallet size of 1,000 × 1,000 mm. For challenging machining tasks on components weighing up to 4,000 kg, it offers a feed force of 20,000 N.

The H 14000 can be fitted with an NC-controlled HELLER facing slide, which is one of a kind in the industry. This permits turning operations such as taper boring, pocket production or diameter offsetting. A measuring probe for workpiece measurement in the machine during operation and fast tool break monitoring are also standard features.

To facilitate efficient cell operation, the machines are suitable for manual loading. They can also be adapted for integration into an FMS or alternative automated loading system. The practical traversing speed of 40 m/min on all axes has allowed HELLER to minimise the positioning times.

The high degree of precision intrinsic to all H series models is achieved through reduced table deformation and the high basic accuracy of the internal drives and integral linear measuring scales. The productivity gains in the form of production times, which are proven in practise to be 20 to 50% shorter than those of competitive products, are achieved by the minimised axis positioning times.

Machines made by HELLER are known throughout the industry for their high cutting performance. This makes chip disposal an important aspect, for which the H 14000 has three spiral conveyors in its work area. For flexible use of the machines worldwide, HELLER customers can choose between the Siemens Sinumerik 840D CNC controller and the Fanuc 31i-B CNC controller for all models.

Every HELLER machining centre benefits from over 120 years’ experience in machine tool construction. The HELLER philosophy is based on guaranteeing optimised reliability and universality for roughing and finishing, while complying with the narrowest production tolerances throughout the machine’s entire service life.

Despite the high power, speed and torque values of the machines, they are among the most energy-efficient on the market all over the world. Regenerative drive systems, servomotors that make more efficient use of the entire speed range and output-reduced valves, as well as the standby strategy, have been standard on the H series machining centres at HELLER for many years. The use of speed-controlled, high-pressure coolant pumps at the coolant units of this machine series also ensure optimised efficiency.

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