Coolant graphs 4.0 Tool
Coolant graphs 4.0 Tool 3.6 output 4.0 Bearing 3.6 output 3.2 3.2 2.8 2.8 2.4 2.4 Ø 6 mm 2.0 2.0 Throughput (l/min) 1.6 1.2 Throughput (l/min) 1.6 1.2 0.8 0.8 ER(M) 16 ER(M) 11 0.4 Ø 3 mm 0.4 10 50 100 150 Pressure (bar) 10 50 100 150 Pressure (bar) 20 Tool output 18 Ø 20 mm Bearing 20 output 18 16 16 14 Ø 17 mm 14 12 12 ER 40 10 Ø 10 mm 10 Throughput (l/min) 8 6 Ø 8 mm Throughput (l/min) 8 6 ER 32 4 4 ER(M) 20-25 2 Ø 6 mm 2 Ø 3 mm ER(M) 16 10 50 100 150 10 50 100 150 Pressure (bar) Pressure (bar) Expert advice It is of utmost importance that the ratio between the tool size (shank) on the one side and the RCR side is ‘in balance’ i.e. the RCR needs to be as small as possible and as large as needed. For ER size reductions see page 25. How to read the graph: 1) Please find your tool size in the left graphic (3-6 in the top graph, 3-20 in the lower graph) 2) The higher throughput (in litre/minute) -within one tool size- is for shorter tools, the lower throughput is for longer tools. 3) Please identify the amount of pressure (in bar) of the pump on the X-axis. 4) The ‘RCR balance’ is only correct if the tool side graph (left) is ≥ than the RCR bearing output side (right), otherwise the size of the RCR needs to be reduced. 26
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