Plastic Modular Belts; Reject Mechanisms - Loma IQ2 User Manual

4
About the metal
detector range

Plastic modular belts

The plastic modular belt conveyors use a belt constructed from injected-moulded plastic
modules, assembled into an interlocked unit and joined by plastic hinge rods. The belt is
positively driven from a central drive sprocket that is secured on a square-section drive
shaft. This means that no slippage and no deviation in tracking can occur.
The following table gives details of the three different plastic modular belt types supplied by
Loma:
Belt type Design
Flat top Smooth, closed surface.
Flush grid Open grid pattern with a smooth surface.
Lightweight flush Open grid pattern with a smooth surface.
grid
All the belt types are constructed from white polyethylene and can support a maximum
weight of 60kg spread along the belt.

Reject mechanisms

Belt conveyors can be supplied with the following types of reject device:
• Stop-On-Detect (SOD)
• Air blast
• Pusher
• Retracting band (available on flat belt and lightweight flush grid belt only).
Alternatively, a conveyor can be supplied without a reject device but with 'Signal Only'
output. On detection of metallic contaminant in the product, the control unit provides an
output signal only. This conveyor can be used in conjunction with the customer's choice of
equipment.
As standard, a reject cover is fitted over the outfeed part of the belt and the reject device.
This protective device is intended to stop any part of a person's body from being placed
within the operating area of the reject device. The Stop-On-Detect reject is not fitted with a
reject cover.
Applications
Wrapped or loose products.
Boxed or wrapped products.
Boxed or wrapped products.
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