What is the lead time for production?

Lead time ranges from 7 to 35 days, depending on the level of customization required for grit sizes, dimensions, or branding.

Are these stones compatible with specific Sunnen machines?

Yes, they are engineered for seamless integration with Sunnen vertical (e.g., SV-15), horizontal (e.g., AH-300), and CNC honing systems, as well as DH, CK, and CV series mandrels.

Premium Sunnen P28nm 35 Engine Block Diamond Tool Set for Precision Machining

Name: Premium Sunnen P28nm 35 Engine Block Diamond Tool Set for Precision Machining
Brand: Zhengzhou Yaxin Superhard Materials Co., Ltd.
SKU: 2238915805

Henan, ChinaZhengzhou Yaxin Superhard Materials Co., Ltd.

US$5.00-10.00

1 Piece

Product profile

Customization

Available

Type

Grinding Head Oilstone

Material

Diamond + Metal Powder,CBN+Metal Powder

Model NO.

honing stones

Application

Grinding

Effect

Polishing

Grit Size

Customized

Feature

Long Life High Performance

Usage

Inner Bore Honing

Warranty

3 Months

Bond

Metal

Item Name

Honing Head

Type Name

Honing Tools

Package Customized

Support

Logo Customized

Support

OEM ODM

Customized

Transport Package

Cartons/Plastic Bags/Customized

Specification

Customized

Trademark

yaxin

Origin

Henan, China

HS Code

8207201000

Production Capacity

50000

Key features

Exceptional Durability: CBN abrasives offer 20-50x longer lifespan than conventional stones, reducing downtime and replacement costs.

High Efficiency: High material removal rates reduce cycle times by up to 40% compared to resin-bond alternatives.

Customizable Options: Available in grit sizes #80-#1000 with tailored dimensions and shapes to fit Sunnen mandrels.

Thermal Stability: Withstands high temperatures without bond degradation, minimizing workpiece thermal damage.

Broad Compatibility: Seamlessly integrates with Sunnen vertical, horizontal, and CNC honing systems and mandrels.

Cost-Effective Solution: Minimal dressing requirements and long service life lower overall operational costs.

Global Support: Technical assistance and OEM customization available with ISO certified quality management.

Company profile

Importers and ExportersHigh Repeat Buyers Choice

Zhengzhou Yaxin Superhard Materials Co., Ltd.

Henan, China

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

AI-Powered supplier vetting

SummaryThe supplier sells and produces honing tools, grinding wheels, scribing blades, diamond dressing rollers, and related mechanical and diamond products. It offers customization from samples, designs, and full specifications, and has documented finished-product inspection instructions. However, it is explicitly not classified as a professional technical supplier, does not provide 3D software design services, and has no available SDK. No supplier management-system certification is reported. Quality assurance exists, but written corrective/preventive-action and complaint-handling procedures or records are absent. The supplier operates two production lines, reports 11–20 quality-control staff, and has stated delivery times of within 15 workdays off-season and one month during peak season. Its export experience is limited to one year, while overseas warehousing, showroom services, inventory capacity, and a valid manufacturing contract with related subcontractors are unavailable. No customer cases are provided.

Supplier typeThe supplier’s business scope covers hard materials, honing tools, diamond tools, grinding wheels, diamond products, and related equipment, while its product description identifies Yaxin-brand honing and grinding-related products. It is explicitly marked as not being a professional technical supplier, so it is better characterized as a product manufacturer/seller with technical development activities rather than a professional technical-service supplier.

CertificationsThe supplier management-system certification field is reported as NIL. Although quality assurance is stated elsewhere, the provided information does not identify any formal certification, so certification holding cannot be considered an advantage.

After-Sales capabilityThe supplier has no written corrective and preventive-action procedures or records and no written complaint-handling procedures or records. It also lacks in-stock service capacity, overseas warehouse services, and overseas showroom services, indicating explicit gaps in documented and overseas after-sales support.

Production capacityThe supplier produces multiple tool and diamond-product categories, operates two production lines, and reports 11–20 quality-control staff. It has standardized finished-product inspection instructions and stated delivery times, but lacks inventory capacity and has no valid manufacturing contract with related subcontractors, so production capability is evidenced but operational resilience is limited.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, and full customization in both design-service-related fields. This is direct evidence of broad customization capability.

Product Q&A

Q:What is the warranty period for these tools?

We provide a comprehensive 2-year warranty against any manufacturing defects, ensuring consistent high-performance results.

Q:Do you offer free samples for new partners?

Yes, we offer complimentary sample packages of standard tools. For specialized items, we recommend a small trial order, and we can credit its cost towards your first volume purchase.

Q:What are the payment and shipping terms?

We accept T/T, PayPal, LC, D/P, and Western Union. Shipping options include Sea, Air, and Land freight, with delivery typically taking 3-30 days depending on the order.

Q:How are the products packaged to ensure safety?

Each tool is boxed with anti-collision materials like bubble wrap, then secured in heavy-duty cartons or wooden cases for maximum protection during international transit.

Q:What is the MOQ for custom logo orders?

The MOQ is as low as 1 piece for standard stones, while custom logo orders require a minimum of 50 pieces.