Output Specifications - MAGUIRE MPA-6 Series Installation Operation & Maintenance

M P A 
S e r i e s
THREE AND SIX ROLLER PUMP - MAXIMUM OUTPUT SPECIFICATIONS
Model Tubing
MPA-
18-G 1/8" (green)
34-G 1/8" (green)
34-R 3/16" (red)
51-G 1/8" (green)
51-R 3/16" (red)
51-C 1/4" (clear)
(Model 34-G is supplied unless otherwise specified)
To select proper pump size:
1. Determine maximum extrusion rate in pounds per hour. For injection molding, extrusion
rate is approximately equal to tons of clamping pressure; i.e., a 500-ton press extrudes
material at about 500 lbs/hour. A more accurate estimate may be made using shot weight
and screw return time for any molded part:
(Shot wt in grams) / (Screw return time in seconds) x 8 = (lbs/hr)
2. Determine maximum expected letdown ratio and multiply this times extrusion rate for
maximum expected lbs/hour of color required.
3. From the above chart, select the pump with the lowest pumping rate that meets these
maximum requirements.
Examples:
250 lbs/hr x .2% = .5 lbs/hr max. color -- Select Model 18-G
320 lbs/hr x 1.2% = 3.8 lbs/hr max. color -- Select Model 34-G
700 lbs/hr x 2% = 14 lbs/hr max. color -- Select Model 51-R
Max RPMs
I.D. Motor Shaft
30
56
56
90
90
90
M A G U I R E
Flow/hour @ 10#/gal
Min.(grams) Max.(lbs)
36
36
81
36
81
138
P R O D U C T S ,
Min Dispense
(one cycle)
2.9 .006 grams
5.4 .006 grams
11.6 .013 grams
8.6 .006 grams
18.0 .013 grams
30.0 .022 grams
24
I N C .