What safety devices does a conveyor need?
At minimum, pull-cord emergency stop along the length, plus belt sway and speed switches that trip the drive on fault.
PCS · Safety Devices
Pull Cord Switch
拉绳开关
A conveyor safety switch with pull cord that trips the drive from anywhere along the walkway — the basic emergency stop every plant inspector asks for.
- SKU prefixSAFETY-PCS
- MOQ10 pcs
- Lead time1 month
- StandardPCS
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Current SKU: SAFETY-PCS
Overview
Pull Cord Switch at a Glance
Rope pullTrip
Full-lengthCoverage
IP65Protection
ISO 9001 / MACertified · PCS
Usage
Usage
Pull-Cord Switch — an emergency-stop switch with a cable run the full length of the conveyor within reach of operators. Pulling it anywhere cuts power instantly, so a worker who sees a hazard or gets caught can stop the line before injury. Mandatory on every manned conveyor.
Operating conditions
Operating conditions
| Working temperature | Ambient range (-20 °C to +40 °C); IP65 enclosures for wet and dusty sites. |
|---|---|
| Dusty environment | Suitable — IP65 enclosures protect switches, pull-cords and sensors |
| Moisture & water | Suitable — IP65 enclosures for wet, humid and washdown areas |
| Corrosive environment | IP65 enclosures in coated steel or stainless steel for corrosion-prone plants |
| Certification | MA coal-mine safety certified versions available — confirm the certified SKUs for your project |
| Outdoor use | Suitable — coated and stainless options for coastal and weathering service |
Technical overview
Safety devices protect personnel and equipment around the conveyor. HBXM supplies pull-cord switches, belt sway and speed monitors, and emergency stops that integrate with your plant shutdown logic.
How does a pull-cord switch work?
A tensioned cable runs the conveyor length; pulling it anywhere latches the switch and cuts power to the drive through your shutdown logic.
Are these devices explosion-proof?
We offer Ex d and Ex ib rated units for coal, grain and other hazardous areas; specify your zone when ordering.
Can they connect to an existing PLC?
Yes. Our switches output dry contacts or 4-20 mA signals that drop into standard PLC and relay shutdown circuits.
Highlights
Features
Rope-pull trip
Full-length pull cord stops the line from any point.
Rugged IP65 body
Die-cast enclosure sealed against dust and washdown.
Belt misalignment switch
Trips on drift to protect the frame and belt.
Pull-cord emergency
Full-length rope stop along the conveyor length.
Zero-speed monitor
Detects belt slip or stall for safe shutdown.
Rugged enclosure
Die-cast or stainless, IP65 sealed.
Quality
1
Trip reliability
Mechanism tested for repeatable action.
2
Seal integrity
Enclosure keeps dust and washdown out.
3
Electrical safety
Isolated contacts and certified components.
4
Finish options
Coatings for corrosive and outdoor duty.
FAQ
Frequently asked questions
How far apart should pull-cord switches be installed?
On both sides of the conveyor, so the cord is reachable from anywhere along the walkway — typically every 20–30 m on long conveyors, and always at the head, tail and any access door.
Latching or non-latching?
Latching (manual reset) for emergency stops, so the conveyor cannot be restarted until the person who pulled the cord has reset it. Non-latching is only for non-safety signalling.
Do the switches need certified contacts?
For a genuine emergency stop, yes — dual-channel, positively-opening contacts that fail safe. Send us the plant's standard and we will match the contact arrangement.