Why use an impact bed at the loading zone?
It spreads the impact load across a wide support so the belt is not pinched between lumps and idlers, preventing premature belt and idler failure.
BED · Buffers
Buffer Bed
缓冲床
A conveyor impact bed takes the drop energy at transfer points so the belt carcass is protected — modular cassettes, UHMWPE slide bars and replaceable rubber cushions.
- SKU prefixBUFFERS-BED
- MOQ10 pcs
- Lead time1 month
- StandardBED
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: BUFFERS-BED
Overview
Buffer Bed at a Glance
UHMW / rubberBar / deck
CassetteModular build
Load zonePosition
ISO 9001 / MACertified · BED
Usage
Usage
Buffer Bed — a continuous cradle of UHMW-PE, polyurethane or impact-rubber bars mounted flush under the belt at the loading zone. Unlike individual impact idlers it supports the belt over its full width (face contact, not point contact), spreading the load so sharp or heavy lumps cannot punch through and the belt will not sag or tear longitudinally. Fitted on heavy-impact lines, especially crusher discharge and transfer towers with large drop or sharp material.
Operating conditions
Operating conditions
| Working temperature | Ambient range (-20 °C to +40 °C); UHMW-PE and PU impact bars rated about -40 °C to +80 °C. |
|---|---|
| Dusty environment | Suitable — UHMW-PE and rubber impact bars resist dust and fines in the loading zone |
| Moisture & water | Suitable — UHMW-PE and rubber bars are unaffected by water; coated steel frames for wet 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
Impact beds and buffer bars absorb the shock of material falling onto the belt at loading points. HBXM bars use a UHMW top layer over energy-absorbing rubber to protect the belt, seal and idlers from impact damage.
What is the difference between an impact bar and an impact bed?
An impact bar is a single replaceable segment; an impact bed is a full-width frame of joined bars that supports the whole loading zone.
What is the UHMW layer for?
UHMW has very low friction so the belt slides smoothly over the bar instead of dragging, which reduces wear and power draw.
How long do buffer bars last?
Service life depends on tonnage and lump size; in typical mining duty the UHMW surface runs for many months before bar replacement.
Highlights
Features
Load-zone mounting
Sits under the chute to cushion material right at the impact point.
Belt-safe surface
Low-friction deck prevents cover scoring during sliding load.
UHMWPE slide bars
Low-friction surface protects the belt during load impact.
Energy-absorbing rubber
Cushions heavy, sharp or high-drop material at the loading point.
Modular cassette design
Sections bolt together for any belt width and layout.
Sealed bearing support
Optional idler cassette for continuous, low-drag sliding.
Quality
1
Bar integrity
UHMW grade verified for impact and abrasion resistance.
2
Cushion reliability
Rubber compound tuned for consistent energy absorption.
3
Frame strength
Welded structure load-tested to drawing.
4
Finish options
Coatings for wet, corrosive and outdoor duty.
FAQ
Frequently asked questions
Impact bed or impact idlers — which should I use?
Impact idlers are cheaper and fine for moderate drops and soft material. Impact beds spread the load over a continuous surface, so they win where the drop is high, the lumps are sharp, or the belt is expensive to replace.
How long should an impact bed be?
As a rule of thumb, at least the distance the material travels in 0.5–1 second, and never shorter than the chute opening plus one metre.
Do the slide bars need lubricating?
No. UHMWPE bars are self-lubricating; they only need checking for wear and for material build-up between the bars.