Materials such a diatomaceous earth, lime, certain pigments, etc., spell trouble for even the toughest standard metering feeders. Our specialized screw feeders let you meter materials that tend to pack and clump, especially when moist. Available in six sizes to handle rates from .28 to 600 cubic feet per hour.

SPECIFICATIONS

Contact Materials:Carbon Steel
304 Stainless Steel
316 Stainless steel
Special Alloys
External Support Brackets:Carbon Steel
Coatings: (Internal & External)Standard External: Machinery enamel.
Optional External: Epoxy Paints. Corrosion-resistant paints. Customer-specified special paints or colors.
Standard Internal: Machinery enamel for carbon steel; stainless and other alloys, uncoated
Optional Internal: Epoxy paints, Teflon coating, Customer Specified
Drives:Standard: SCR solid state DC drives, potentiometer-controlled, 115-230/1/60, available with modification to accept external signal; 1-5 ma, 4-20 ma, 10-50 ma, 0-6 v.
Inverter variable AC drive
AC mechanical variable drive
AC constant speed
Enclosures:Standard Totally enclosed, fan-cooled
Optional
Explosion-proof, Class I, Group D
Explosion-proof, Class II, Group E, F & G
Chemical type, severe duty
Totally enclosed, non-vented
Sanitary Applications:Standard All internal seams continuously welded
All welds ground smooth
All internal survaces polished, #4 finish
Food grade gaskets and seals
Optional
As above, but also includes:
Guards, covers, etc. retained with wing nuts for quick disassembly
Special TENV motors
Structural modifications for ease of cleaning
Pressure Applications:Feeders can be constructed for pressure applications up to 14.9 psig.
High Temperature Applications:Special modifications permit operation up to 350 F.

 

(mm)Maximum Feed Rates
Typical Turndown is 20 to 1
Screw SizeABCDEFGHJKLMCU FT/HRCU M/HR
1 (25.4)55 (1397)14 1/2 (368.3)7 1/4 (184.15)15 (381)7 1/4 (184.2)21 3/4 (552.5)12 (304.8)52 1/2 (1333.5)9 3/8 (238.13)2 1/4 (57.2)1 1/2 (38.1)8 (203.2)2.8 (84.2)0.1 (190.5)
1 1/2 (38.1)55 (1397)14 1/2 (368.3)7 1/4 (184.15)15 (381)7 1/4 (184.2)21 3/4 (552.50)12 (304.8)52 1/2 (1333.5)9 3/8 (1333.5)2 1/4 (57.2)2 (50.8)8 (203.2)8.8 (90.5)0.2 (190.5)
2 (50.8)55 (1397)14 1/2 (368.3)7 1/4 (184.15)16 1/2 (419.1)8 1/4 (209.6)21 3/4 (552.5)12 (304.8)52 1/2 (1333.5)9 3/8 (238.13)2 3/4 (69.9)2 1/2 (63.5)10 (254)23.0 (101.6)0.6 (241.3)
3 (76.2)55 (1397)14 1/2 (368.3)7 1/4 (184.15)16 1/2 (419.1)8 1/4 (209.6)21 3/4 (552.5)12 (304.8)52 1/2 (1333.5)9 3/8 (238.13)3 1/4 (82.6)3 1/2 (88.9)10 (254)74.0 (117.5)2.0 (241.3)
4 (101.6)58 (1473.2)16 1/2 (419.1)8 1/4 (209.6)21 (533.4)9 1/4 (235)25 1/4 (641.4)14 (355.6)55 1/2 (1409.7)11 (279.4)3 3/4 (95.3)4 1/2 (114.3)12 (304.8)200.0 (130.2)6.0 (292.10)
6 (152.4)58 (1473.2)16 1/2 (419.1)8 1/4 (209.6)29 (736.6)10 1/4 (260.4)25 1/4 (641.4)14 (355.6)55 1/2 (1409.7)11 (279.4)4 7/8 (123.8)6 5/8 (168.3)14 (355.6)600.0 (157.2)17.0 (342.9)
+based on materials weighing 40 lbs./cu.ft. 

Download Properties of Solids Brochure

All material handling systems begin with a thorough review of the particulate solid(s) being handled or processed. Once the flow properties of a solid are quantified, flow problems that occur with a given material can be predicted and handled, preferably in the initial design stage. Understanding a material’s characteristics and how to apply these properties is essential for a safe, efficient and trouble free system.