What materials are used for the plunger core?

The plunger core is crafted from materials like AISI 4135 (35CrMo) or AISI 5140 (40Cr), with the option of customized materials.

What is the warranty period for this product?

The warranty period for this product is 1 year.

High-Reliability Plunger Replacement Assembly for Qws 2500 Pump

Name: High-Reliability Plunger Replacement Assembly for Qws 2500 Pump
Brand: Qingdao Hna Oilfield Equipment Manufacturing Co., Ltd.
SKU: 2121930972

Shandong, ChinaQingdao Hna Oilfield Equipment Manufacturing Co., Ltd.

US$100.00-1,000.00

1 Piece

Product profile

Customization

Available

Warranty

1 Year

Manufacturing Process

Forging

Model NO.

Metal/Ceramic Plunger

Surface Treatment

Quenching

Operation Pressure

Atmospheric Pressure

Material

Ceramic

Transport Package

by Sea

Trademark

HNA

Origin

China

Production Capacity

300

Key features

High-Pressure Ceramic Sleeve: Zirconia-based ceramic with >92 HRC hardness for extreme abrasion resistance.

Forged Core Construction: High-pressure forged AISI 4135/5140 core ensures superior density and strength.

Self-Lubricating Design: Microstructure reduces friction and wear, potentially eliminating need for lubricants.

High-Pressure Resistance: Rated for maximum pressure up to 20,000 PSI for demanding applications.

Customizable Materials: Core materials like AISI 4135 or 5140 can be customized to specific needs.

API & Non-API Standards: Available in designs meeting both API and non-API standards for flexibility.

Mirror Finish Surface: Advanced grinding creates smooth surfaces to reduce friction and ease cleaning.

Company profile

Years of Export ExperienceFast DeliveryQuality AssuranceManagement Certification

Qingdao Hna Oilfield Equipment Manufacturing Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 23 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤2.05h

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier with broad customization, ODM, and OEM capabilities. It holds ISO9001:2015, ISO45001:2018, and ISO14001 certifications, and reports documented quality, corrective-action, and complaint-handling procedures. Its export share is stated at 71%–90%, with 23 years of export experience, inventory capability, and participation in the Offshore Technology Conference. However, it does not provide 3D software design services, has no available SDK, no overseas warehouse, showroom, agent, or branch, and no valid manufacturing-capacity contract with affiliated subcontractors. No new products were launched in the past year, and only two R&D engineers are reported. Financial records are identified for 2021–2023, but the provided information does not contain sufficient financial performance detail to assess credibility. Customer evidence includes OEM service for well-known brands and repeat-buyer preference of 50%–80%, but no Fortune 500 cooperation.

Supplier typeThe supplier explicitly describes itself as a professional technical supplier and emphasizes learning, innovation, superior products, and technical support. This supports classification as a professional technical supplier rather than a purely trading-oriented entity.

CertificationsThe supplier reports ISO9001:2015, ISO45001:2018, and ISO14001 certifications in both its sustainability and management-system information. These stated certifications provide explicit evidence of formal quality, occupational health and safety, and environmental management systems.

After-Sales capabilityThe supplier states that it provides pre-sales and after-sales technical support, while documented procedures and records exist for corrective and preventive actions and customer complaints. These statements support an established after-sales and issue-resolution process.

R&D capabilityThe supplier has two R&D engineers and offers ODM services, but it does not provide an SDK, did not launch new products in the past year, and does not offer 3D software design services. The evidence shows some development capability but also explicit limitations in recent innovation output and technical-service scope.

Production capacityThe supplier reports in-stock service capability, 23 years of export activity, an export share of 71%–90%, and proximity to Qingdao Port. However, it has no valid manufacturing-capacity contract with affiliated subcontractors and lacks overseas warehouses, branches, and agents, so production and international fulfillment capability cannot be rated as clearly strong overall.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, flexible customization, and ODM services. This is direct evidence of broad customization capability, although 3D software design services are not provided.

Client casesThe supplier reports participation in the Offshore Technology Conference, OEM service for well-known brands, and repeat-buyer preference of 50%–80%. However, it reports no cooperation with Fortune 500 companies and provides no specific customer names or case details, so the evidence is positive but limited.

Product Q&A

Q:What are the payment terms?

For new clients, an advance payment of 30%-100% of the total amount is required. The balance must be paid before delivery after your inspection.

Q:What payment methods do you accept?

We accept T/T (Telegraphic Transfer) or L/C (Letter of Credit). After receiving the PI, you can make the payment through your bank as per the terms mentioned.

Q:What is the order procedure?

First, we discuss order and production details via email or social media. Then we issue a PI for your confirmation. You pay a deposit or full amount before production starts. After production, we contact you for shipment details and balance payment before arranging shipment.

Q:What is the lead time for production?

Lead time depends on the products ordered. If items are not in stock, production may take a couple of days or even months. Peak season lead time is one month, while off-season is within 15 workdays.

Q:Is customization available for this plunger?

Yes, customized specific designs and series are available, meeting both API and non-API standards to meet your specific needs.