In what order should I evaluate the criteria when choosing a crane remote control?
Evaluate in order: channels, receiver mounting, real distance, supply voltage, load type, remote supply, environment and maintenance. This order avoids swaps.
Make the selection in the order below; each step narrows the next one down and removes the risk of changing the receiver later. At the start of the order is the channel requirement, at the end the maintenance plan.
- Channels: every bidirectional movement uses up two channels. Decide between the 2, 4 and 6 channel options with the movements to be added later in mind as well.
- Receiver mounting: if there is a protected panel, the panel-mount type; if the receiver will stay outdoors, an IP67 outdoor housing.
- Distance: measure the real diagonal distance. The open-field figures are roughly 100 m on the SF series and roughly 150 m on the ST series; leave a margin on top.
- Supply: the LF100R receiver can be powered from 12/24V DC or 220V AC; for the LT200R receiver of the SF200, 12/24V DC is specified. Check which voltage is available in your panel.
- Load: will the relay contact drive the motor directly, or a contactor coil? On an inductive load, plan for derating and a snubber.
- Remote control supply: the Li-Po rechargeable LT200 or the 3xAAA battery-powered LF200; will you be able to establish charging discipline on site?
- Environment and maintenance: dust, water, temperature, checking of seals and glands, the need for a spare remote control.
A decision table for two critical steps
The next two steps are the source of most return and exchange requests:
| Site situation | Receiver | Remote control |
|---|---|---|
| Enclosed workshop, existing panel | Panel-mount | Battery or rechargeable, makes no difference |
| Open site, rain and dust | IP67 outdoor | IP67 housing |
| End-of-shift charging habit cannot be established | Either | Battery-powered, with spare cells |
| Uninterrupted use all day long | Either | Li-Po rechargeable |
At the point where you are undecided, the receiver type comparison and the comparison between rechargeable and battery-powered remote controls give the detailed criteria.
The cost of breaking the order
The order of the steps matters, because each step uses the result of the one before it. If you settle the distance before the channel count, you redo the calculation from scratch when the number of movements changes. The most expensive mistake, though, is leaving the supply step to the end: if there is no voltage available in the panel, either a separate power supply is added or the receiver is replaced completely. Replacing the receiver means redoing the wiring and stopping the machine a second time; whereas the same information is read off in a few minutes by opening the panel cover.
Frequent mistakes
- Measuring the distance as the crow flies. Take the point where the operator actually stands as the basis; how much range is enough in which application is covered separately.
- Setting the relay current equal to the value on the motor label. On an inductive load the current rating is calculated by derating it.
- Assuming the ingress protection rating by looking at the housing; what the IP codes guarantee is defined.
Where this ordering is not enough
The list is for a standard lifting application. In a plant that carries hazardous material, carries people or requires continuity, the choice does not follow from product features alone: the risk assessment of the machine, the emergency stop architecture and the redundancy plan are decisive. In installations of that kind, settle the machine safety side before the product choice, then come back to this list. The list is also for a single machine; if more than one crane is to be operated on the same site, plan the channel and pairing arrangement from the outset as well, otherwise the sets turn out individually correct but problematic together.
The full topic: Wireless Crane Remote Control Selection Guide