PU Buffer / Comb Impact Idler

Product Overview

The PU Buffer / Comb Impact Idler carries independent elastic PU rings in a comb arrangement that deform under falling ore and rebound, absorbing impact energy at chute loading and crusher discharge on 24–72 inch belts. The gaps between rings shed damp, sticky material that would bind a solid steel ring, so it cushions and self-cleans at the same time. Impact-resistant sealed housings protect the bearing in high-drop transfer zones.

Key Features

Type

Buffer / comb-type impact idler

Face

Independent PU rubber rings in comb arrangement

Action

Elastic deformation absorbs impact energy at transfer point

Roller Diameter

5" / 6" (Ø127–150mm)

Belt Width

24"–72" (600–1800mm)

Bearing

Sealed bearing, impact-resistant housing

Benefit

Cushions falling ore, self-cleaning, anti-stick

Applications

Chute loading and transfer zones receiving bulk drop
High-impact quarry and crusher discharge points
Damp, sticky material where solid steel rings bind

How to Choose This Component

Grade and load: choose CEMA E for extra-heavy, high-tonnage and overland duty; CEMA D for heavy-duty mainstream sections. Size the roller diameter and bracket spacing to the expected impact, belt load and material flow.
Belt width: match the part to your belt (BW 24"–72"). When requesting a quote, send belt width, required trough angle or drum diameter, and installation spacing so we can confirm a drop-in fit.
Working environment: tell us whether the duty is wet, dusty, sticky, abrasive or high-drop so we can match the seal, lagging, material and surface finish.
Retrofit and mounting: provide existing bracket spacing and frame type for a direct replacement; painted or galvanized finishes are both available.

Why Source These Spare Parts From Us

Built to CEMA D/E and ISO alignment standards for interchangeability with existing frames.
Direct factory supply with no middleman markup; OEM and private-label orders accepted.
Custom dimensions, lagging, seals, shafts and finish built to your specification.
Seaworthy timber or carton export packing; shipped to 60+ countries by sea, air and express freight.
Engineer support on selection and a written quote within 48 hours.

Frequently Asked Questions

What build grade and rating is the PU Buffer / Comb Impact Idler?

PU Buffer / Comb Impact Idler is supplied at Buffer / comb-type impact idler. It is engineered to match CEMA D/E and ISO expectations for BW 24"–72" belt duty and can be customized to your dimensions, lagging and finish.

What belt widths does the PU Buffer / Comb Impact Idler cover?

This component is sized for BW 24"–72". Send your exact belt width, required angle or diameter and installation spacing when requesting a quote so we can confirm a direct, drop-in fit.

How is the PU Buffer / Comb Impact Idler sealed against dust and water?

Protection follows Sealed bearing, impact-resistant housing. Labyrinth-style sealing keeps grease in and fines, moisture and wash-down out, extending service life in harsh bulk-handling conditions.

Can I order a custom PU Buffer / Comb Impact Idler?

Yes. Dimensions, lagging or coating, seal, shaft and finish are built to your specification; standard lead time is 15–25 working days and 30–45 days for fully custom builds.