|
Sizing Information:
Jacket Cooling:
- Use 15% of Spindle H.P.
- Spindle HP x 15% x 2545= BTU's/Hr.
0-1 tons cooling use JT Series
1-20 tons cooling us MasterChill Series
Direct Spindle Cooling:
- Light Duty 20-25% of HP
- Medium Duty 30-35% of HP
- Heavy Duty 50% of HP
- Spindle HP x % x 2545= BTU's/Hr.
Any size cooling using A-Series
Note: Spindle should never be
more than 50%.
Call sales dept
for Chiller quotation
or email
salesdept@dimplexthermal.com
|
TEN REASONS TO USE A
CHILLER:
1. Part-to Part repeatability and /or parts wont
pass gauge test or won't meet tolerance requirements
2. part too hot to handle for operation.
3. Extended Tool and Grinding Wheel Life.
4. Control Rapid coolant breakdown, Misting and/or
Fire
5. Keep from having parts scrapped during start-up or during later
shifts because they are out of spec.
6. Thermal expansion can cause a significant dimensional change when pars
are produced to a very high tolerance(e.g., =/- .0001").
7. Typical Production Environments lacks adequate coolant temperature
control which can result in a gradual rise during a day's production run.
8. A stabilized coolant temperature has an important function in
maintaining the dimensional accuracy of the work piece.
9. Reduced coolant evaporation, bacteria growth, and coolant Misting in to
plant atmosphere.
10. Minimal operating costs associated with closed loop system chillers.
Important Factors to be Considered when Cooling a
Spindle
Spindle Horsepower
Minimum and maximum ambient temperature
Maximum temperature of metalworking fluid if it will have direct contact
with the spindle housing
Total cooling load (consider all sources of heat)
Heating Load (is heating required)
Flow & Pressure requirements for spindle cooling fluid
Temperature sensor location
Operating temperature & required temperature stability (+/-)
Cooling Fluid to be used (water/glycol or oil)
Viscosity of cooling fluid (SSU or CST)
Electrical Requirements
Spindle operating cycle- Idle Time vs. At-Speed Operating Time
Source of Cooling – Plant chilled water loop, radiator-type cooler,
chiller, etc
Type of condenser if a chiller is required – Water-Cooled or Air-Cooled
Spindle Protection – Loss of cooling flow and/ or over-temperature
|
JT-Series
A- Series
