Tubular screw conveyors

for the mechanical conveying of bulk materials

PAUL GROTH tubular screw conveyors for horizontal or ascending mechanical conveying of floury, granular and lumpy bulk materials.

With the appropriate design, tubular screw conveyors can also perform other tasks such as dosing, wetting, mixing and crushing.

Starting with our standard modular-system we adapt the tubular screw conveyor to the product properties, the installation option and other process requirements.

Tubular screw conveyor
Basic design

Motor bracket with geared motor and flexible coupling
Tubular screw conveyors made of steel: outside painted and inside untreated, or hot-dip galvanised
Tubular screw conveyors made of stainless steel: bath pickled and outside glass-bead blasted
Screw thread made of highly wear-resistant steel too

configure now

Tubular screw conveyor sizes and technical data

Tubular screw conveyor		RS100	RS125	RS170	RS220	RS270	RS320	RS400
Jacket diameter	mm	102	128	168	219	273	324	406
Thread diameter	mm	87	110	150	200	250	300	380
Intended JACOB pipework Ø Ø	mm	150	150	150/200	200/250	250/300	300/350	-
Capacity example depending on product properties and the intended processing
Grain 0.75 t/m³ Inclination 0° Inclination 30° Inclination 45° Inclination 60°	t/h t/h t/h t/h	7 5.5 5 4	10 8 7 5	30 25 20 15	60 50 45 35	85 70 65 50	115 95 85 65	150 120 110 85
Powder 0.5 t/m³ Inclination 0° Inclination 30° Inclination 45° Inclination 60°	t/h t/h t/h t/h	3.5 2.8 2.4 2	5 4 3.5 2.7	15 12 10 8	25 20 18 13	40 32 28 22	55 45 38 30	95 75 65 50
Material thickness in the standard design
Jacket (stainless steel)	mm	2.2(2.0)	3.2 (2.0)	4.0 (3.0)	4.5 (3.0)	5.0 (3.0)	5.6 (3.0)	5.6 (4.0)
Thread inner/outer Steel Stainless steel	mm mm	- -	- -	3/1.6 3/1.6	6/3 3.5/1.7	6/3 -	6/3 -	8/8 -
Screw flights Steel Stainless steel	mm mm	3 3	3 3	5 4	5 4	5 4	5 4	6 5

		RS170	RS220	RS270	RS320
A	mm	180 (250)	250	(250) 300	(300) 350
A1	mm	202 (270)	270	(270) 325	(325) 375
A2	mm	220 (290)	290	(290) 345	(345) 375
A3	mm	71 (66)	75	62 (67)	71 (71)
B	mm	Ø 250	Ø 300	Ø 350	Ø 420
D	mm	Ø 168	Ø 219	Ø 273	Ø 324
L1	mm	-	-	-	-
L2	mm	56	56	59	60