Quality assurance

Only a consistent quality assurance policy can guarantee the high standards and reliability of RESITA REDUCTOARE S.A. products. All raw materials and externally sources supplies are scrupulously inspected on a routine basis. Every tool is checked time and again as it passes through the production cycle. The function interaction of individual subassemblies is tested as early as at the assembly stage using measuring and test equipment which are themselves subject to continuous inspections. Every RRR gear unit undergoes a full test rig trial before being shipped to the customer.

The quality control of RESITA REDUCTOARE S.A. is working according to the international standards. The quality management system was certified in compliance with ISO 9001 by BVQI in 1996, by GLC in 1999, 2003 and 2006, and starting with 2008 the quality management system is certified by LRQA. On the test stand every RRR reduction gear undergoes a running test before being shipped to the customer.

RESITA REDUCTOARE S.A. does not give only a declaration of quality and guaranty for its products, but issues all the corresponding test documents and can prove them with the measurement apparatus which are in the endowing of the Quality Assurance Department.

Here are some apparatus used to test our products:

apparatus for the gearing geometry measurement: KLINGELNBERG PNC 150 (made in 1995, it was the 5th unit sold by Klingelnberg in all the world), micrometers with plates for gear wheels CARL-MAHR
apparatus for the hardness measurement: ZWICK 3212-63099, BRINEL-DIALTESTOR 3b-S-E 3175, ROCKWELL-DIALTESTOR ZRC-8470, portable MIKRODUR KRAUTKRÄMER MIC 1 (for HV and HRC hardness), portable POLDI-HAHN&KOLB
apparatus for the metallography measurement: microscope AXIOTECH 25HZ 960322, video camera SONY SPC-2000P No.161332, color monitor SONY PVM-1450 QM, color printer SONY UP-1200 AEPM No.11769
apparatus for the undestructive control: US-USIP 11 KRAUTKRÄMER, KARL DEUTSCH-Deutroflux UV-HELLING lamp, Residualmeter EMU 10, apparatus for measurement of visible light intensity and UV

Machines for different kinds of measurement like:

roughness: NAMICON POCKET SURF III with printer
depths for paint: NAMICON DUO CHECK ST20 with printer
temperature/pressure: portable apparatus

Controls made to our products:

general measurements/checkings: dimensional geometrical form and position, roughness, crossing axis, distance between axis and holes for the casings
measurements/checkings for the inner/outer gearings: thickness of tooth, dimension over teeth, tooth's profile, flank line, both flanks division, roughness of tooth's surface
measurements/checkings for the keynuts: width, symmetry, depth
measurements/checkings for the hole/holes'thread: positions deviations (division), diameter, thread
measurements/checkings for bore/bevel journal: effective dimensions, contact spot
measurements/checkings for materials: US control, fissure control with magnetic powder/penetration liquids, hardness on tooth head, hardness on tooth flank for mn>4, case/nitriding depth, microstructure
different kinds of measurements/checkings: paint layer thickness, paint adhension, pressure manometers measurements P=0-40 bar