Lessmann 2019 GB FINAL

BRO Bronze Wire (CuSn) is used for surface processing of wood and metal. It’s also used when low-sparking brushes are needed. Encapsulated Brushes Encapsulated brushes are ideal for an aggressive work on working pieces and for a very exact working in edges and angles. By embedding steel wire, stainless steel wire, brass coated wire or brass wire in tough plastic, the filling width always remains the same and early break of the wires can be prevented. It’s the perfect tool for long lasting and safe working. The advantages when working with encap- sulated brushes are longer lifetime and harder brush effect. Furthermore the risk of injury declines when using encapsulated brushes. However, it might be possible that the brush will leave marks on the work piece. NSI Nickel Silver (CuNiZn) is used for polishing work pieces e. g. parts of nickel silver or brass, as it is softer than steel wire. PP, PA, PE Synthetic Filaments are resistant to abrasion and flexible. Despite minor resistance against heat these filaments are perfect for cleaning, grinding or surface pro- cessing of metal, plastic or wood. Available are: • Polypropylen (PP) • Polyamid (PA) - PA 6, PA 6.6, PA 6.12 • Polyethylen (PE) Abrasive Filaments consist of polyamide bristles containing abrasive grits. This modern material is ideal for debur- ring work, fine surface finishing of plastic and metal parts as well as grinding, cleaning, poli- shing, and structuring of surfaces. With their flexible surface, brushes with abrasive filament align to the different shape of working pieces. Abrasive bristles also have grinding effects on the side, which makes them even more flexible to application possibilities. You can choose between grit (from K60 to K1000) composed of aluminium oxide (AO) and silicon carbide (SIC). Also diamond filament is available. Normally 2 polyamide-types are used: Polyamide PA 6: • good bend recovery • good abrasion resistance • absorption of water to max. 10% Polyamide PA 6.12 (ideal when working in wet surrounding): • flexible and excellent bend recovery • high abrasion resistance • absorption of water to max. 3% You can differ the bristles between round or flat bristles. Usually round bristles are used, be- cause they are more flexible than flat bristles and very good for processing work pieces with strong shapes. Round bristles with a smaller diameter, less than 150 mm, are very efficient if you are not able to use flat material. However, flat bristles possess a high abrasive grit, represent a long durability and a high remo- val rate by a larger contact surface. FIB Fibre consists of heat resistant plant fibre, is slightly abrasive and therefore can be used for smooth grinding, above all for working on wooden surfaces. Moreover fibre is used for general cleaning and polishing work. ROS Horse Hair is an animal hair, which above all is deployed in terms of light cleaning and dusting work. Hor- se hair is resistant against diluted acids and bleaches. It’s not chargeable for static electricity. Physical Characteristics STA STH ROF ROH RO4 RO8 STM / STL MES WNr. 1.4301 1.4310 1.4401 1.4860 CuZn36 / CuZn37 AISI 304 301 316 Tensile Strength in N/mm 2 * 1,800 - 2,100 2,300 - 2,500 1,800 - 2,100 2,100 - 2,500 1,600 - 1,800 1,600 - 1,800 2,300 - 2.600 900 - 1,200 Specific Gravity in g/cm 3 7,85 7,85 7,85 7,85 7,85 7,90 7,85 8,50 Temperature Consistancy in °C + 300 °C + 300 °C + 450 °C + 450 °C + 500 °C + 600 °C + 300 °C + 180 °C *The specified Tensile Strength is applicable for a wire strength 0.3 - 0.4 mm 3 grits in silicon carbid BRUSH FILLING MATERIALS AND THE CHARACTERISTICS TECHNOLOGY, MATERIAL AND SAFETY By ordering our standard grit, also with small quantities you receive short delivery times! The chemical components of nylon please find at www.lessmann.com Grits to choose from: Abrasive filaments SIC (filament K60 to K1000): • intensive results when deburring • for surficial improvement/-processing • mainly for process stainless steel and aluminium limited • microhardness: 25.000 N/mm² Common measurements: K 80/1,1, K 80/1,2, K 80/1,4, K 120/0,6, K 120/1,1, K 180/0,9, K 180/1,0, K 320/0,60, K 500/0,5 Abrasive filaments AO (filament K60 to K1000): • less sharp-edged compared to SIC • to the finish of soft metal • to polishing and smoothing • to process aluminium when smoothing or polishing • microhardness: 21.000 N/mm² Common measurements: K 80/1,2, K 120/1,1, K 180/0,9, K 180/1,0, K 240/0,75, K 240/0,90, K 320/0,60, K 500/0,25, K 500/0,50, K 600/0,3 – others on request. Diamonds filaments(filament K60 to K1000): • for aggressive applications • used for materials with high material strength • self-renewing through independent sharpening • microhardness: 42.000 N/mm² Ceramic grit: • very good grinding and polishing properties • maximum lifetime and aggressiveness • working with hard metal tools • microhardness: 42.000 N/mm² 13 12