What is the difference between drive and tail pulleys?
The drive pulley is powered by the motor and pulls the belt; the tail pulley is an unpowered redirect at the loading end, often with a take-up.
MAG · Pulleys
Permanent Magnetic Pulley
永磁滚筒
A magnetic pulley that removes tramp iron at the head of the conveyor, protecting crushers, screens and shredders downstream from the damage a stray bolt or bucket tooth causes.
- SKU prefixPULLEYS-MAG
- MOQ1 pc
- Lead time1 month
- StandardMAG
Configure & add to inquiry cart
Choose the specs for your application. We will reply with pricing, FOB and lead time for your selection.
Current SKU: PULLEYS-MAG
Overview
Permanent Magnetic Pulley at a Glance
Permanent magnetCore
Ferrous sep.Function
No powerOperation
ISO 9001 / MACertified · MAG
Usage
Usage
Permanent-Magnet Pulley — a head or drum pulley with built-in magnets that pull ferrous scrap (bolts, tramp iron, rebar) out of the burden as it discharges. It protects crushers and belts downstream from damage and is a simple, power-free separator.
Operating conditions
Operating conditions
| Working temperature | Ambient range (-20 °C to +40 °C); rubber or ceramic lagging rated about -20 °C to +80 °C. |
|---|---|
| Dusty environment | Suitable — labyrinth or IP65 seals keep dust out of the bearings |
| Moisture & water | Suitable — IP65 sealing for outdoor, port, washdown and humid duty |
| Corrosive environment | Powder-coated for ordinary acid or alkali · Galvanized for coastal and semi-outdoor · Stainless for high-salinity and high-humidity sites |
| 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
Pulleys drive, redirect and tension the conveyor belt across the system. HBXM pulleys are available from 200 mm to 1600 mm diameter with static or vulcanized rubber lagging, and are dynamically balanced for smooth running at high belt speeds.
Why add rubber lagging to a pulley?
Lagging increases friction so the belt does not slip, protects the shell from wear, and can be grooved to shed water and mud.
What is a motorized pulley?
A motorized pulley encloses the motor and gearbox inside the drum, giving a compact, sealed, low-maintenance drive for confined spaces.
How do I size a conveyor pulley?
Size by shaft and bearing load from belt tension and torque, then choose diameter for the target belt speed and lagging type.
What is a conveyor belt drive pulley?
A conveyor belt drive pulley is the powered drum that transmits motor torque to the belt through friction. HBXM drive pulleys use vulcanized rubber or ceramic lagging to grip the belt without slip.
Highlights
Features
No external power
Separates tramp metal continuously as material discharges.
Magnetic core
Built-in magnets lift ferrous tramp metal off the belt.
Permanent magnet
Core field captures ferrous tramp from the burden.
Heavy-duty welded drum
Seamless steel pipe body with reinforced end discs for high torque transfer.
Custom lagging
Plain, diamond, ceramic or PU lagging for grip, wear life and belt traction.
Precision machining
Run-out ≤0.5 mm with shaft keyway machined to drawing.
Quality
1
Drum integrity
Weld and wall checked for the rated torque and belt tension.
2
Lagging bond
Lagging vulcanized / bonded for no slip under full load.
3
Balance accuracy
Balanced to the required class for low vibration.
4
Finish options
Coatings for abrasive and corrosive plants.
FAQ
Frequently asked questions
How deep a burden can a magnetic pulley handle?
Typical rule: a strong permanent magnetic pulley holds ferrous metal through roughly 100–150 mm of burden. Deeper beds need a suspended magnet or a magnetic head pulley with a stronger circuit.
Do magnetic pulleys need power?
No — permanent rare-earth circuits need no power, no cooling and no rectifier, which is why they are preferred over electromagnetic pulleys in remote or dusty plants.
Where does the recovered metal go?
The iron is carried around the pulley and discharged underneath, into a separate chute, while the non-magnetic product follows the normal trajectory.