Sterling 882.01749.00 manual Appendix B Disc Sizing Guides

Appendix B Disc Sizing Guides

Disc	Disc	Min/Max	Amount of Material Dispensed	Minimum Throughput -	Maximum Throughput -
	Nomenclature	Disc RPM	every Disc Revolution*	Continuous Running*	Continuous Running*

				35 lbs./ft3	44 lbs./ft3	35 lbs./ft3	44 lbs./ft3	35 lbs./ft3	44 lbs./ft3
DD30-030672	P030672	0.2	RPM			0.04 lbs/hr	0.04 lbs/hr	0.61 lbs/hr	0.77 lbs/hr
	3 mm thick	3	RPM			0.02 kg/hr	0.02 kg/hr	0.28 kg/hr	0.35 kg/hr
		0.2	RPM			0.04 lb/hr	0.04 lb/hr	1.69 lbs/hr	2.17 lbs/hr
	5.7 mm diameter	8.4	RPM	1.53 g/rev	1.95 g/rev	0.02 kg/hr	0.02 kg/hr	0.77 kg/hr	0.98 kg/hr
	72 pockets	0.5	RPM	0.02 g/hole	0.027 g/hole	0.10 lb/hr	0.12 lb/hr	2.32 lbs/hr	2.89 lbs/hr
Default
	CT100562	11.5	RPM	(micropellets)	(micropellets)	0.045 kg/hr	0.05 kg/hr	1.05 kg/hr	1.31 kg/hr
calibration #		1.0	RPM			0.19 lb/hr	0.26 lb/hr	7.66 lbs/hr	9.63 lbs/hr
1.50 g/rev
		38	RPM			0.09 kg/hr	0.12 kg/hr	3.47 kg/hr	4.37 kg/hr
		See Note 4
DD30-050660	P050660	0.2	RPM			0.04 lbs/hr	0.06 lbs/hr	0.42 lbs/hr	0.54 lbs/hr
	5 mm thick	3	RPM			0.02 kg/hr	0.03 kg/hr	0.19 kg/hr	0.24 kg/hr
		0.2	RPM			0.05 lb/hr	0.07 lb/hr	1.1 lbs/hr	1.37 lbs/hr
	5.7 mm diameter	8.4	RPM	1.35 g/rev	1.70 g/rev	0.02 kg/hr	0.03 kg/hr	0.50 kg/hr	0.62 kg/hr
	60 pockets	0.5	RPM			0.09 lb/hr	0.10 lb/hr	1.46 lbs/hr	1.83 lbs/hr
Default				0.02 g/hole	0.028 g/hole
		11.5	RPM			0.04 kg/hr	0.05 kg/hr	0.66 kg/hr	0.83 kg/hr
	822.00738.00
Calibration #		1.0	RPM			0.17 lb/hr	0.22 lb/hr	6.48 lbs/hr	8.54 lbs/hr
1.30 g/rev		38	RPM			0.08 kg/hr	0.10 kg/hr	2.94 kg/hr	3.87 kg/hr
		See Note 4
DD30-051040	051040	0.2	RPM			0.11 lb/hr	0.15 lb/hr	1.68 lbs/hr	2.14 lbs/hr
	5 mm thick	3	RPM			0.05 kg/hr	0.07 kg/hr	0.76 kg/hr	0.97 lbs/hr
		0.2	RPM			0.11 lb/hr	0.15 lb/hr	4.71 lbs/hr	5.99 lbs/hr
	10 mm dia.	8.4	RPM	4.24 g/rev	5.39 g/rev	0.05 kg/hr	0.07 kg/hr	2.12 kg/hr	2.72 kg/hr
	40 pockets	0.5	RPM	0.11 g/hole	0.13 g/hole	0.27 lb/hr	0.35 lb/hr	6.33 lbs/hr	8.00 lbs/hr
Default
	CT21710	11.5	RPM			0.12 kg/hr	0.15 kg/hr	2.87 kg/hr	3.62 kg/hr
calibration #		1.0	RPM			0.55 lb/hr	0.70 lb/hr	21.19 lbs/hr	27.08 lbs/hr
4.00 g/rev
		38	RPM			0.25 kg/hr	0.32 kg/hr	9.61 kg/hr	12.28 kg/hr
		See Note 4

Consult factory - 40 pocket disc and 35.5 rpm motor for small pellets and coarse powder only

4-10

DD3

051725

0.2

RPM

0.20 lb/hr

0.24 lb/hr

2.92 lbs/hr

3.70 lbs/hr

0-051725

5 mm thick

3

RPM

0.09 kg/hr

0.11 kg/hr

1.32 kg/hr

1.68 kg/hr

0.20 lb/hr

0.24 lb/hr

8.18 lbs/hr

10.37 lbs/hr

0.2

RPM

17 mm dia.

8.4

RPM

7.37 g/rev

9.38 g/rev

0.09 kg/hr

0.11 kg/hr

3.71 kg/hr

4.70 kg/hr

25 pockets

0.5

RPM

0.30 g/hole

0.38 g/hole

0.48 lb/hr

0.61 lb/hr

11.0 lbs/hr

14.0 lbs/hr

CT21711

11.5

RPM

0.22 kg/hr

0.27 kg/hr

4.99 kg/hr

6.36 kg/hr

Default

1.0

RPM

1.00 lb/hr

1.25 lbs/hr

37.04 lbs/hr

47.10 lbs/hr

calibration #

7.30 g/rev

38

RPM

0.44 kg/hr

0.57 kg/hr

16.80 kg/hr

21.36 kg/hr

See Note 4

4-11

DD3

051818

0.2

RPM

0.35 lb/hr

0.44 lb/hr

5.34 lbs/hr

6.80 lbs/hr

0-051818

5 mm thick

3

RPM

0.16 kg/hr

0.20 kg/hr

2.42 kg/hr

3.08 kg/hr

0.2

RPM

0.35 lb/hr

0.44 lb/hr

14.96 lbs/hr

19.03 lbs/hr

18 mm dia.

8.4

RPM

13.42 g/rev

17.08 g/rev

0.16 kg/hr

0.20 kg/hr

6.79 kg/hr

8.63 kg/hr

18 pockets

0.5

RPM

0.75 g/hole

0.95 g/hole

0.85 lb/hr

1.12 lbs/hr

19.60 lbs/hr

25.63 lbs/hr

CT23057

11.5

RPM

0.39 kg/hr

0.51 kg/hr

8.89 kg/hr

11.62 kg/hr

Default

1.0

RPM

1.76 lbs/hr

2.20 lbs/hr

67.44 lbs/hr

85.90 lbs/hr

calibration #

38

RPM

0.80 kg/hr

1.00 kg/hr

30.59 kg/hr

38.95 kg/hr

13.50 g/rev

See Note 4

Note 1: This guide is to be used for general disc selection for Digital Dosing unit applications. All rates shown are based on continuous throughput of free-flowing materials. Consult factory for regrind, powder and all hard-to-flow materials.

Note 2: Minimum recovery time is one (1) second, and maximum rate is 9.5 disc revolutions in one screw recovery cycle (injection

mode). Use correct disc for molding applications to ensure proper dispensing of material during the recovery cycle.

Note 3: Feeder should not run continuously below 15% of maximum speed – use lower RPM motor or disc with smaller pockets.

Note 4: 35.5. and 38 rpm motors can only be used with soft pellets – may not have enough torque to cut hard pellets, i.e. PC, PET, nylon, etc., especially when the shear gets dull.

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