What is the typical diameter and length of the anchor bolt?

The diameter ranges from 20 mm to 25 mm, and the length is between 1 m and 4 m.

What payment terms are accepted?

We accept LC and T/T payment terms.

Are these anchors suitable for temporary support?

Yes, mechanical bolts of this type are considered temporary support solutions.

Mechanical Expansion Anchor Rock Bolts for Harsh Coal Mine

Name: Mechanical Expansion Anchor Rock Bolts for Harsh Coal Mine
Brand: Ningbo Supreme Machinery Co., Ltd.
SKU: 2138308032

Zhejiang, ChinaNingbo Supreme Machinery Co., Ltd.

US$1.43

100 Pieces

Product profile

Customization

Available

After-sales Service

12 Months

Warranty

12 Months

Certification

CE, RoHS, ISO 9001:2000, ISO 9001:2008

Standard

AISI, ASME, BS, ANSI, JIS, GB, ASTM, DIN

Surface Treatment

Sand Blast

Manufacturing Process

Casting+Forging+Stamping+CNC Machining+Welding

Material

Ductile Iron, Steel

Item Name

Expansion Shell Anchor Bolt

Application

Mining Industry

Size

as Per Drawing

Diameter

35-38

Finish

Oil Rusty

QC

100%

Transport Package

Wooden Case

Specification

Customized

Trademark

Origin

China

HS Code

8486909000

Production Capacity

80, 000 PCS Monthly

Key features

Comprehensive Certifications: CE, RoHS, ISO 9001:2000, ISO 9001:2008 compliant for global safety standards.

Durable Material Composition: Constructed from carbon steel and ductile iron for harsh coal mine environments.

Customizable Dimensions: Size and diameter (35-38mm) available as per customer drawing specifications.

Robust Manufacturing Process: Advanced casting, forging, stamping, CNC machining, and welding techniques.

Reliable Surface Treatment: Sand blast finish with oil rusty coating for enhanced corrosion resistance.

Standard Compliance: Meets multiple international standards including AISI, ASME, BS, ANSI, JIS, GB, ASTM, DIN.

One-Sided Wall Support: Enables one-sided forming of walls in sound rock or concrete applications.

Secure Anchor Mechanism: Expansion shell design increases anchor force through cone and wedge tightening.

Company profile

Ningbo Supreme Machinery Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 1990-02-01Nearest Port: Ningbo, Shanghai, TianjinAverage Response Time: ≤18hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, CFR, CIF

About Our Factory & Business Background

AddressYuan Feng Road, Dongjiao Industrial Area Fenghua, Ningbo China, 315500, Ningbo, Zhejiang, China

Average Lead TimePeak Season Lead Time: one month Off Season Lead Time: one month

Our Production Capability & Technical Expertise

Main ProductsIron Sand Casting Part, Ductile Iron Casting Part, Gray Iron Casting Part, Stainless Steel Casting Part, Precision Investment Casting Part, Carbon Steel Casting Part, Lost Wax Casting Part, Grey Iron Casting Part