Wire guidance involves cutting a 10-12mm deep x 3mm wide path in the concrete slab, inserting an electrical wire to form a loop/circuit, sealing over the laid wire & then connecting the wire ends to a line driver which is generally supplied with the VNA equipment.
Why Choose Wire GuidanceWire guidance systems are both accurate & reliable. The signal being emitted from the wire allows the turret truck or order picker to be aligned upon approach to the wire of angles of up to 30 degrees. Wire guidance systems are individually designed to suit your requirements, albeit a new or existing premises. The systems can be installed in stages to assist with productivity & can be extended to suit future business growth. The systems are also suitable to cool room & freezer applications where space is at a premium. Options include end of aisle braking magnets, so that your VNA equipment automatically slows prior to the end of the aisle.
Both guidance options will create the following:
There are however, some differences that need to be factored into your decision making process:
Obviously if you have a 100mm(h) rail running down each side of the aisle, you can’t put a pallet on the ground, so you will need to factor in the cost of another set of beams in every bay, which usually have a lowest level of approximately 250mm. Apart from the cost of another set of beams per bay, you then have the issue of housekeeping behind the rail & under the bottom beams. Guide wheels are a moving part & as such are a wear & tear item, they also make the unit wider.
The mild pinball action causes the rails to come apart or bend usually in the sections where the 6 meter rail lengths are welded together over a period of time. This action also loosens the chemical anchors over time which will need to be drilled out & replaced with new ones. Finally when you decide to move premises, you will have to make good the floor, that’s a lot of chemical anchors that will need to be drilled out & the holes back-filled.
Not only is wire guidance a far cheaper option than rail guidance (see cost benefits), it is quicker to install (up to 800 meters per day), requires no ongoing maintenance & does not affect making good slabs upon relocation.
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