What are the payment terms?

We accept LC (Letter of Credit) and T/T (Telegraphic Transfer) as terms of payment.

What is the surface treatment for the bolts?

The standard surface treatment is Sand Blast, and the finish is typically Oil Rusty.

Where is the nearest port for export?

The nearest ports for export are Ningbo, Shanghai, and Tianjin.

Underground Mining Roof Rock Bolt Expansion Shell Bolt for Tunnel / Construction

Name: Underground Mining Roof Rock Bolt Expansion Shell Bolt for Tunnel / Construction
Brand: Ningbo Supreme Machinery Co., Ltd.
SKU: 2025946375

Zhejiang, ChinaNingbo Supreme Machinery Co., Ltd.

US$1.50

100 Pieces

Product profile

Customization

Available

After-sales Service

12 Months

Warranty

12 Months

Model NO.

SS8733

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

Multi-Standard Compliance: Certified under CE, RoHS, ISO 9001:2000, ISO 9001:2008, AISI, ASME, BS, ANSI, JIS, GB, ASTM, DIN.

Customizable Dimensions: Size is customizable as per drawing, with diameters of 35-38mm available for mining applications.

12-Month Warranty: Comprehensive 12-month warranty and after-sales service coverage for all products.

Robust Material Options: Constructed from Ductile Iron, Steel, or Carbon Steel for high strength and durability.

Versatile Manufacturing: Advanced processes including Casting, Forging, Stamping, CNC Machining, and Welding.

Effective Rock Support: Expansion shell design tightens to hold rock together, ideal for tunnel and construction support.

Fast Lead Time: Average lead time of one month, consistent across peak and off-peak seasons.

Global Export Experience: Exporting since 1990 to North America, Europe, Asia, Africa, and Oceania with FOB/CIF terms.

Company profile

Ningbo Supreme Machinery Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 1990-02-01Nearest Port: Ningbo, Shanghai, TianjinAverage Response Time: ≤10.10hTerms 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

Our Industry Experience & Global Business Record

Main MarketsNorth America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Product Q&A

Q:What materials are used for the expansion shell bolts?

The bolts are made from Ductile Iron, Steel, or Carbon Steel, depending on the specific application requirements.

Q:Is the size of the bolt customizable?

Yes, the size is customizable as per the customer's drawing, with standard diameters ranging from 35-38mm.

Q:What certifications does the product hold?

The product is certified under CE, RoHS, ISO 9001:2000, ISO 9001:2008, and various international standards like AISI, ASME, BS, ANSI, JIS, GB, ASTM, and DIN.

Q:What is the warranty period for this product?

We provide a 12-month warranty and after-sales service for all our expansion shell anchor bolts.

Q:How long is the average lead time for production?

The average lead time is one month, regardless of whether it is peak season or off-season.