Screw Conveyor

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Bulk handling conveyor for transporting loose powdery, granular and small lumpy materials

Shaftless Screw Conveyor

Shaftless screw conveyors are widely utilized across various industries, such as construction materials, power generation, chemicals, metallurgy, coal, machinery, light industry, food processing, and agriculture. This material handling equipment is designed for transporting powdered, granular, and small lumpy materials like cement, coal powder, fertilizers, and ash. However, it is not suited for materials that are sticky, prone to spoilage, or easily form clumps, as these can adhere to the screw or cause blockages, hindering operation.

Features

Its adaptable design allows for a versatile arrangement of inlet and outlet points.
The integral construction ensures ease of maintenance and low manufacturing costs.
With strong sealing, it prevents spillage and operates safely.
Most efficient at an inclination of less than 20°, it is ideal for materials that aren't prone to spoilage or clumping.

Specifications

Screw diameter (mm)	100	160	200	250	315	400	500	630	800	1000	1250
Screw pitch (mm)	100	160	200	250	315	355	400	450	500	560	630
Rotation speed (r/min)	140	112	100	90	80	71	63	50	40	32	25
Conveying capacity (m³/h)	2.2	8	14	24	34	64	100	145	208	300	388
Rotation speed (r/min)	112	90	80	71	63	56	50	40	32	25	20
Conveying capacity (m³/h)	1.7	7	12	20	26	52	80	116	165	230	320
Rotation speed (r/min)	90	71	63	56	50	45	40	32	25	20	16
Conveying capacity (m³/h)	1.4	6	10	16	21	41	64	94	130	180	260
Rotation speed (r/min)	71	50	50	45	40	36	32	25	20	16	13
Conveying capacity (m³/h)	1.1	4	7	13	16	34	52	80	110	150	200
Note: Due to different material filling factors, the capacity may vary. The capacity may also change depending on the material’s viscosity and the conveying angle.

Tubular Screw Conveyor

The tubular screw conveyor is a versatile piece of bulk material handling equipment widely used in industries such as chemicals, construction, machinery, and grain processing. It is ideal for moving various powdered and small-sized materials, including coal dust, cement, and grains. While its design is suitable for short-distance conveying, it may not perform as effectively with sticky or large clumped materials due to higher power consumption and the need for even feeding.

Features

Its simple structure ensures safe, easy operation and requires minimal maintenance.
The conveyor’s small cross-section makes it ideal for limited spaces and multiple unloading points.
The enclosed system helps contain dust and prevent material loss, maintaining a clean operation environment.
This conveyor is more suitable for lower production rates and shorter transport distances due to its higher energy consumption.
Uniform feeding is essential for efficient performance, preventing material overload or uneven distribution.

Specifications

Screw diameter (mm)	150	200	250	300	400	500	600
Screw pitch (mm)	120	160	200	240	320	400	480
Rotation speed (r/min)	190	150	150	120	120	90	90
Conveying capacity (m³/h)	4.5	19	30	45	80	100	200
Rotation speed (r/min)	90	75	75	63	63	50	40
Conveying capacity (m³/h)	4.8	9	18.6	26	60	90	116
Rotation speed (r/min)	75	63	63	50	45	40	32
Conveying capacity (m³/h)	4	8	17	21	41	70	94
Rotation speed (r/min)	63	50	50	40	36	32	25
Conveying capacity (m³/h)	3	6	13	16	34	52	80
Note: Due to different material filling factors, the capacity may vary. The capacity may also change depending on the material’s viscosity and the conveying angle.