What is the minimum order quantity (MOQ)?

The minimum order quantity is 1 piece, allowing for flexible purchasing for various project sizes.

What are the lead times for production?

Lead time is 1-3 months during peak season and one month during the off-season.

What applications are these fasteners suitable for?

They are suitable for Ball Mills, Rotary Kilns, Dryers, Gearboxes, and Reducers, including liner bolts and anchor bolts.

M40 Nut and Bolt High Strength Bolts and Nuts for Mine Mill Liners

Name: M40 Nut and Bolt High Strength Bolts and Nuts for Mine Mill Liners
Brand: Henan Xingyang Mining Machinery Manufactory
SKU: 1947341092

Henan, ChinaHenan Xingyang Mining Machinery Manufactory

US$4.00-10.00

1 Piece

Product profile

Customization

Available

After-sales Service

12mouths

Warranty

1 Year

Certification

CE, ISO 9001:2008

Standard

GB, GOST

Surface Treatment

Without Processing

Manufacturing Process

Casting

Material

Alloy Steel

Transport Package

Container

Specification

OEM

Trademark

XKJ

Origin

He Nan

HS Code

8474209000

Key features

Customizable Gear Parameters: Teeth height, thickness, pitch, addendum, dedendum, working height, bottom clearance, pressure angle, and helix angle are all OEM/Customized.

High Hardness & Wear Resistance: Surface hardness HRC 50~63 via quenching; HB 150~280. Materials include 42CrMo/45# steel or customized options.

Wide Application Scope: Suitable for Ball Mill, Rotary Kiln, Dryer, Gearbox, and Reducer. Includes liner bolts, hook-type, J-type, and bucket bolts.

Professional Casting & Machining: Features sand casting, heat treatment (quenching/carburizing), polishing, and surface finish Ra1.6~Ra3.2 with ISO 1328 grades 5-9.

Strict Quality Control: 100% inspection including UT/MT testing. Strict quality and process control methods ensure high reputation and reliability.

Established Manufacturer: Henan Xingyang Mining Machinery Manufactory established in 1997, with 20 years of export experience and 80,000 sqm workshops.

Flexible OEM/ODM Service: Full customization available. OEM and ODM services supported with 10 R&D engineers and strong manufacturing capabilities.

Comprehensive Warranty: Provides 1 Year Warranty and 12 months After-sales Service for all mechanical equipment and spare parts.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceODM Services

Henan Xingyang Mining Machinery Manufactory

Henan, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Full Customization CertifiedExport Year: 20 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤4.65h

AI-Powered supplier vetting

SummaryThe supplier demonstrates formal management-system certification, quality assurance, ODM/OEM capability, private mold ownership, 3D design services, and full customization. It also reports 10 R&D engineers, 30 qualified service-capability suppliers, and a repeat-buyer preference of 50%–80%. However, it has no valid manufacturing-capacity contract with related subcontractors, no inventory, overseas warehouse, overseas showroom, overseas agents or branches, or overseas service coverage. The supplier lacks written procedures or records for supplier assessment, corrective and preventive actions, and customer complaints; it also lacks raw-material traceability and ERP-based process management. No new products were launched during the past year, and there is no SDK availability. Customer-case evidence is limited because no Fortune 500 cooperation or offline trade-show participation is reported.

Supplier typeThe supplier appears to be a professional technical manufacturer with ODM and OEM services, private mold capability, 3D software design, and full customization. It has no overseas agents or branches, no overseas warehouse or showroom, and no overseas service coverage, indicating a primarily domestic service structure.

CertificationsThe supplier reports ISO9001:2015, ISO45001:2018, and ISO14001 certifications. These explicitly demonstrate management-system certification coverage across quality, occupational health and safety, and environmental management.

After-Sales capabilityThe supplier has no overseas service network, inventory service, overseas warehouse, overseas showroom, or overseas agents and branches. It also has no written procedures or records for handling customer complaints or corrective and preventive actions, which is an explicit weakness in structured after-sales support.

Production capacityThe supplier offers multiple quotation terms and reports 30 qualified service-capability suppliers, but it has no valid manufacturing-capacity contract with related subcontractors and no inventory capacity. Peak-season lead-time data is internally unclear, while the lack of written supplier-assessment procedures, traceability, and ERP integration indicates production-control weaknesses.

Customization capabilityThe supplier explicitly provides ODM services, OEM services for well-known brands, private mold designs, 3D software design, and full customization. These capabilities directly support customized product development and manufacturing.

Product Q&A

Q:What customization options are available for the gear parameters?

We offer full customization for gear teeth height, thickness, pitch, addendum, dedendum, working height, bottom clearance, pressure angle, and helix angle.

Q:What materials are used for the ball mill liners and bolts?

Standard materials include 42CrMo and 45# steel, but customized materials are also available based on specific requirements.

Q:What is the surface hardness and treatment process?

Surface hardness ranges from HRC 50 to HRC 63 through quenching, with HB 150-280. Treatments include polishing and sand blasting.

Q:What is the warranty period for these products?

We provide a 1-year warranty and 12 months of after-sales service for our mechanical equipment and spare parts.

Q:What certifications do your products hold?

Our products are certified with CE and ISO 9001:2008 standards, ensuring quality and compliance.