ISO 9001 · ISO 14001 · ISO 45001 · MA (MT 821-2006) certified manufacturer
xuzheng@chengroll.com | WhatsApp +86 153 4301 3980
ChengRoll conveyor component factory in Liuyang, Hunan
Factory-direct since 2005

Conveyor Idler & Pulley Manufacturer
for Mining, Ports, Power & Cement

Hunan ChengGang Conveyor Machinery Technology builds conveyor idlers, rollers, pulleys, brackets and belt-cleaning components in our own 22,000㎡ plant in Liuyang, Hunan — with 20+ years of manufacturing behind every roller we ship.

20+Years Manufacturing
1,000,000Rollers / Year
22,000㎡Factory Area
20+Countries Served
Manufacturer Snapshot

One Factory, Five Component Lines — Specified, Machined and Tested In-House

ChengRoll is the export brand of Hunan ChengGang Conveyor Machinery Technology Co., Ltd. We are not a trading company: tube cutting, shaft machining, bearing assembly, welding, coating and final inspection all happen inside our own plant, so a drawing you approve is a drawing we build.

Our components are specified to GB, DIN, JIS and BS standards and exceed the requirements of GB/T 10595-2009 in the performance areas that decide service life — runout, rotational resistance, dust ingress and seal retention. Every roller leaves with a traceable ID, and every shipment leaves with inspection records.

  • Roller diameter 50–219 mm, length 190–3400 mm, built to your frame and belt width
  • Q235 tube / 45# shaft, deep-groove bearings with C3 clearance, multi-stage labyrinth sealing
  • Finishing options: standard paint, hot-dip galvanizing, electrostatic coating, baking finish
  • Extreme-duty builds for high temperature, heavy load, corrosive and abrasive sites

Explore factory & manufacturing capability →

Conveyor roller production line at ChengRoll plant
Trusted By

Long-Term Supply Partner to China's Heavy Industry — and to Vale

We are a long-term qualified supplier to leading equipment makers, steel and power groups, and to the Brazilian mining company Vale. Components are exported to more than 20 countries and regions.

SANYHeavy Industry
ZOOMLIONHeavy Industry
CRCHIChina Railway Construction Heavy Industry
BAOSTEELSteel Group
HUANENGPower
SHENG HONGMachinery
VALEBrazil · Mining

See how we support these customers →

Choose Your Component

Five Product Lines, Specified to Your Conveyor

Each line below has its own models, specifications and selection notes. If you are not sure which component fits your system, send us the belt width and duty condition — our engineers will specify it for you.

Why ChengRoll

Four Things Buyers Actually Check Before They Order

01

Real capacity

1,000,000 rollers a year from a 22,000㎡ plant with automated lines — tiered capacity expansion for large or repeat orders.

02

Full-chain QC

From incoming steel tube to final runout and seal check, with a unique ID tag on every unit so quality stays traceable.

03

Customization

Extreme-environment builds — high temperature, heavy load, corrosive, abrasive — in carbon steel, stainless or composite with rubber/ceramic coating.

04

Global support

Localized service network across 20+ countries with 24/7 technical response, installation drawings and on-site guidance.

How We Work

From Enquiry to Installation Guidance — 12 Steps, No Guesswork

Conveyor components fail for boring reasons: wrong seal for the dust, wrong lagging for the belt tension, wrong steel for the climate. Our process is built to catch those before production starts.

STEP 01Requirement confirmationDuty, belt width, trough angle, environment, target standard.
STEP 02Preliminary designConcept drawings, dimensioned roller/pulley layout.
STEP 03Technical reviewInternal feasibility and standards check.
STEP 04Client confirmationDrawings issued for your review and revision.
STEP 05Detailed designStructural, welding, coating and tolerance specification.
STEP 06Material & method sign-offSteel grade, bearing brand, seal type, lagging.

See all 12 steps →

Industries We Serve

Six Duty Environments, Six Different Failure Modes

Certified Quality

Certifications Your Procurement Team Will Recognise

Issued by ZRIC (Shenzhen Zhongren International Certification), a CNAS-accredited body. The scope covers the production of belt conveyor components — idlers, idler brackets and pulleys. Every certificate number above is publicly verifiable with the issuing body. 7 patents and 100+ industry honours.

MA mining product safety mark — eight models approved Conveyor idlers and impact idlers, Φ89–159 mm · standard MT 821-2006 · renewed 28 Oct 2025, valid to 27 Oct 2030
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Not Sure Which Component Fits Your Conveyor?

Send us belt width, duty condition and quantity. Our engineers will specify the right idler or pulley and quote within 24 hours.

Talk to Our Engineers