Can you recommend suitable rolls based on specific needs?

Absolutely, we are pleased to recommend the most suitable rolls for your requirements.

Is it possible to place a trial order to start the business?

Yes, we accommodate trial orders without any problem.

How do you ensure the quality of the rolls?

We conduct multiple inspections to guarantee the quality of our products. Raw material inspection Inspection at each stage of production 100% finished product inspection

How are the rolls packaged?

Rolls are packed using three layers of plastic wrapping and then secured on an iron frame.

How are the rolls shipped?

Typically, rolls are shipped by sea from the ports of Shanghai or Ningbo.

Which countries do Zhonghang Rolls export to?

Our products are primarily exported to the United States, Russia, Japan, Spain, Malaysia, Turkey, South Korea, and over 10 other countries worldwide.

Premium Heavy-Duty Bottom Roller for Smooth Sliding Doors

Name: Premium Heavy-Duty Bottom Roller for Smooth Sliding Doors
Brand: Huzhou Zhonghang Roll Co., Ltd.
SKU: 1998342471

Zhejiang, ChinaHuzhou Zhonghang Roll Co., Ltd.

US$2,200.00

2 Pieces

Product profile

Customization

Available

Casting Method

Sand Casting

Casting Form Material

Metal

Model NO.

SGAI

Casting Metal

Cast Iron

Casting Form Usage Count

Disposable

Surface Treatment

Electroplating

Surface Roughness

Ra0.4

Coating

Water

Machining Tolerance

+/-0.01mm

Standard

AISI

Certification

ISO 9001:2000, ISO 9001:2008

Transport Package

Shipping

Specification

280-850mm roll body diameter

Trademark

Huzhou zhonghang roll

Origin

China

HS Code

8455300000

Production Capacity

15000 Tons/Year

Key features

30+ Years Manufacturing Experience: Over three decades of direct manufacturing expertise in cast rollers and rings.

Full Customization Capability: Customize rolls based on customer drawings, samples, or specific design requirements.

100% Finished Product Inspection: Strict quality control with 100% functional inspection of all finished rolls.

High Chromium Composite Material: Core made of high-strength nodular cast iron with 6-25% chromium alloy content.

Wide Application Scope: Suitable for rough, intermediate, and finishing rolling in various steel mills.

ISO 9001 Certified Quality: Manufacturing process certified under ISO 9001:2000 and ISO 9001:2008 standards.

Traceable Quality Management: Standard management ensures roll quality is documented and traceable at any time.

Own Steel Factory Support: In-house steel factory tests new products before mass production to ensure quality.

Company profile

High Repeat Buyers Choice100% Finished Products InspectionProduction Process VisualizationManagement Certification

Huzhou Zhonghang Roll Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 year CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤0.01h

AI-Powered supplier vetting

SummaryThe supplier demonstrates broad customization and R&D/ODM capabilities, reports new products in the past year, and provides OEM services to recognized brands. It has substantial manufacturing equipment, 10 production lines, stated mill-roll and ring output of 15,000 tons, and export sales representing 51%–70% of total sales. The supplier reports ISO9001 and ISO14001 certification, additional standardization certifications, and sales to more than 80 steel enterprises. However, manufacturing capacity lacks a valid contract with associated subcontractors, finished-product inspections have instructions but no written records, and no quality assurance is reported. Overseas service infrastructure is limited: no overseas warehouse, showroom, agents, branches, or offline trade-show participation. R&D documentation was unavailable for audit, and patent information is inconsistent across the provided slices.

Supplier typeThe supplier presents itself as a manufacturer with extensive metalworking equipment, 10 production lines, and stated mill-roll and ring production of 15,000 tons. It also offers OEM, ODM, and multiple forms of customization, indicating a manufacturer with design and production-service capabilities rather than only a trading role.

CertificationsThe supplier states that it has passed ISO9001 and ISO14001 quality and environmental management system certification, as well as AAA standardized good behavior certification. These certifications provide explicit evidence of formal quality and environmental management credentials.

After-Sales capabilityThe supplier has documented procedures and follow-up records for corrective and preventive actions and customer complaint handling. However, it reports no overseas warehouse, showroom, agents, branches, or offline trade-show participation, so after-sales support appears procedurally established but geographically limited.

Customization capabilityThe supplier explicitly offers customization from samples and designs, full and minor customization, and flexible customization. R&D personnel are also described as developing products according to customer requirements, directly supporting customized-order capability.

Client casesThe supplier states that it provides OEM services to well-known brands and that its products are sold to more than 80 large and medium-sized steel enterprises domestically and internationally. These are explicit customer and market references, although individual customer names and case details are not provided.

Product Q&A

Q:What is your response time for inquiries?

We will respond to your inquiry within 1 hour.

Q:Are you a manufacturer?

Yes, we have been a direct manufacturer of Cast Rollers for over 30 years.

Q:What kinds of rollers do you manufacture?

We specialize in producing HSS rollers, Ductile Iron Rolls, SGP rollers, SGA rollers, IC rollers, CC rollers, HCr rollers, AD rolls, AS rolls, GS rolls, and over 20 other types of Rollers and Rings.

Q:In which applications are Cast Rolls used?

Cast Rolls are primarily used in High-Speed Wire & Rod, Rod, Narrow Strip Steel, Medium Strip Steel, Section Steel, and various Rolling Mills for Rough Rolling, Intermediate Rolling, and Finishing Rolling Steel production lines.

Q:Do you offer custom rollers and rings?

Yes, we can customize rolls based on your drawings and specific requirements.