Hypertherm HyPrecision 50S, Operator'S Manual

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174 HyPrecision 50S/60S/75S Operator Manual 808690
8 – Pump specifications
Pump speci
fications
All models
Hydraulic fluid
Operating conditions

If the cooling water or the low-pressure water temperature is higher than 23.9°C (75°F), cool the water before
use. Water that is too warm is inefficient for cooling and can reduce high-pressure seal life.
Cooling requirements

Refrigeration tons is the heat transfer required at 0°C (32°F) to make 1 short ton (2,000 lb) of ice in 24 hours.
3.5 kW = 1 refrigeration ton = 12,000 Btu/hour

Using a chiller with a water-glycol solution reduces the efficiency of the heat exchanger.
Type
Antiwear (AW) mineral oil or synthetic hydraulic fluid, ISO viscosity
grade (VG) 32 or 46
Tank capacity 151 L (40 gallons)
Maximum temperature 54.4°C (130°F)
Maximum pressure
Hydraulic pump pressure limit set at
the factory
217.18 bar or 21,718 kPa (3,150 psi)
Minimum Maximum
Relative humidity — 95%
Storage temperature
Water not drained
1.7°C (35°F) —
Ambient operating temperature 4.4°C (40°F) 35.0°C (95°F)
Do not use glycol solution in a chiller at a concentration of more than 25%.
HyPrecision pump model
kW
(minimum)
Refrigeration tons
(minimum tons)
Heat removal
requirement
(minimum Btu/hour)
15 3 0.85 10,000
30 6 1.70 20,000
50 and 50S 9 2.70 32,000
60S 11.5 3.30 40,000
75S 14 4.00 48,000
100D 19 5.30 64,000
150D 28 8.00 96,000