☆ Product Name: How to Choose a Water Temperature Machine	☆ Product model:	☆ Brand: Hengde
☆ Product Category:	☆ Temperature control range:	☆ Product power:

Product Introduction

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How to select and edit a water temperature machine
1. Special circumstances require calculation:
A、 Calculate the power of the heater or freezer KW=W × △ t × C × S/860 × T
W=weight of mold or cooling water KG
△ t=the temperature difference between the required temperature and the starting temperature.
C=specific heat oil (0.5), steel (0.11), water (1), plastic (0.45~0.55)
T=time to heat up to the desired temperature (hours)
B、 Request the size of the pump
Need to understand the pump flow rate and pressure (head) required by the customer
P (pressure Kg/cm2)=0.1 × H (head M) × α (specific gravity of heat transfer medium, water=1, oil=0.7-0.9)
L (media required flow rate L/min)=Q (mold required heat Kcal/H)/C (media to hot water ratio=1 oil=0.45) × △ t (temperature difference between circulating media entering and leaving the mold) × α × 60
2. Selection of freezer capacity
A. Q (freezing capacity Kcal/H)=Q1+Q2
Q1 (Heat brought into the mold by raw materials Kcal/H)=W (Weight of raw materials injected into the mold per hour KG) × C × (T1-T2) × S (Safety factor 1.5~2) T1 Temperature of raw materials in the material tube; The temperature at which T2 finished products are taken out of the mold; The heat generated by Q2 hot runner is Kcal/H
B、 Quick calculation method (not applicable with hot runner)
1RT=7~8 OZ 1OZ=28.3g (including safety factor)
1RT=3024Kcal/H=12000BTU/H=3.751KW
1KW=860 Kcal/H 1 Kcal=3.97BTU
3. Cooling tower selection=A+B
A、 Used for injection molding machines
Cooling tower RT=Injector horsepower (HP) x 0.75KW x 860Kcal x 0.4 ÷ 3024
B、 Used for refrigerators
Cooling tower RT=Cold ton of freezer (HP) × 1.25