What are the available machining tolerances?

The machining tolerance is controlled at +/-0.01mm.

Which industries use these forged rolls?

They are widely used in metallurgy, automobiles, rail transit, and energy sectors.

Forged Back up Rolls for Heavy Machinery

Name: Forged Back up Rolls for Heavy Machinery
Brand: Qingdao Hexin Machinery Co., Ltd.
SKU: 2157098362

Shandong, ChinaQingdao Hexin Machinery Co., Ltd.

US$500.00-5,000.00

1 Piece

Sample price:US$600.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Yes

Warranty

12 Months

Model NO.

hx626581

Rolling Shape

Plank, Tegular, Ribbon, Bar, Pipe, Wire

Product

Steel Ball, Profile, Rolling Beam, Steel Billet, Cogged Ingot

Roller Position

Horizontal

Roller Number

Four-High

Layout

Continuous

Type

Hot Rolling Mill

Surface Roughness

Ra6.3

Machining Tolerance

+/-0.01mm

Technology

Forged

Transport Package

Wooden Case

Specification

Outer diameter: 240mm-1800mm or customized

Trademark

HEXIN

Origin

China

HS Code

85149090

Production Capacity

5000pieces/Year

Key features

Forged Manufacturing Process: Manufactured via smelting, ingot casting, forging, heat treatment, and mechanical processing.

Wide Material Options: Available in 2%Cr, 3%Cr, and 5%Cr series materials like 9Cr2Mo and 5Cr5MoV(Ni).

Deep Hardened Layer: Single side hardened layer depth ranges from 15mm to 100mm.

Large Diameter Capacity: Roll diameter spans from 240mm to 1800mm with unit weight up to 80 tons.

Comprehensive Quality Testing: Includes chemical analysis, hardness test, PT 100%, VI 100%, and dimensional checks.

12 Months Warranty: Comes with a standard 12-month warranty period for peace of mind.

Precision Machining Tolerance: Machining tolerance is controlled at +/-0.01mm for high precision.

Company profile

Exhibition ExperienceYears of Export ExperienceImporters and Exporters

Qingdao Hexin Machinery Co., Ltd.

Shandong, China

Business Type: Manufacturer/FactoryExport Year: 2001-10-11Nearest Port: SHANGHAI ,QINGDAOAverage Response Time: ≤24hTerms of Payment: LC, T/T, D/PInternational Commercial Terms(Incoterms): FOB, CFR, CIF, DDP, DAP, CIP, FCA, EXW

AI-Powered supplier vetting

SummaryQingdao Hexin Machinery Co., Ltd. is a China-based manufacturer/factory in Qingdao, Shandong, focused on mechanical product manufacturing and processing. It reports professional technical R&D capability, 3D software design, SDK availability, ODM and OEM services, and broad customization options. Reported annual productivity is 2,000 tons for catalyst tubes and furnace coils. The supplier has exported for 13 years, with exports representing 51%–70% of total sales, and has attended an overseas trade exhibition. However, it reports no overseas warehouse, showroom, agent, or branch, no new products in the past year, and only nine employees. Supplier-management and complaint-handling procedures exist, but written records are absent, while quality assurance status is unknown. The provided information confirms a manufacturing and customization base but is insufficient to verify certifications, financial strength, after-sales effectiveness, or specific customer cases.

Supplier typeThe supplier is identified as a manufacturer/factory and limited company located in Qingdao, Shandong, China. Its stated business scope is manufacturing and processing of mechanical products, with nine employees and no indication that it belongs to a larger group.

R&D capabilityThe supplier reports professional technical R&D capability, 3D software design services, an available SDK, ODM services, and OEM capability for popular brands. However, it also reports no new products during the past year, indicating established development and design capability but limited recent product innovation evidence.

Production capacityThe supplier identifies itself as a factory manufacturing mechanical products and reports annual productivity of 2,000 tons for catalyst tubes and furnace coils. Its export history of 13 years and export share of 51%–70% further support operational experience, although the workforce is reported as nine employees.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. Its reported 3D design, ODM, and OEM capabilities provide direct support for handling customized product requirements.