EnviroConvey

Shaftless screw conveyor

The shaftless screw conveyors Enviroscrew are designed for transferring difficult and non homogeneous products.

They are commonly used in sewage treatment plants at different places but also in many industrial applications such as food industry for example.

Solid waste can be discharged into a container or conditioned beforehand in a continuous plastic bagging unit.

The shaftless design allows to overcome most of the conveying constraints in relation to difficult products. Such technology gives possibility to manufacture conveyors in one piece up to 30 meters.

The shaftless screw conveyors Enviroscrew may be installed vertically.

Such configuration opens possibilities to transfer products to further treatments positionned at upper floors, or to reach higher level in confined areas.

Layouts

Covers

Shaftless screw

Product inlet

Product outlet

Trough diameter

Specificities

Closed system
No clogging situation
Modularity
Easy maintenance
Low maintenance costs
Reliability and durability

Trough

The shaftless screw conveyors Enviroscrew include closed trough with «U» shape insuring CIP (Clean In Place) conditions with odours limitation.

Screw

The shaftless screw is manufactured in special hard steel and lay on a PEHD protection. Rotation speed is set according to each application. The screw is maintained in its axis thanks to the trough shape.

Outlets

The design of the outlet is adapted to each site configuration. Multiple outlets can be included in the same conveyor.

Performances

Flow rates(m3/h)
Models	SPI 200	SPI 250	SPI 300	SPI 350	SPI 400	SPI 500
Solid screening waste	1.3	3.1	5	7.7	11	19
Installed power (Kw)	2.6	6.2	10	15	22	38

Materials

Construction in stainless steel304L or 316L

Screw in special steel high resistance

Dimensions

Overall dimensions in mm
Models	SPI 200	SPI 250	SPI 300	SPI 350	SPI 400	SPI 500
Length	Length up to 30 meters upon models and applications
Trough diameter	220	280	330	380	440	520
Screw diameter	180	240	290	330	380	450
Trough height	250	310	360	400	470	550

EnviroConvey

Shaftless screw conveyor

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