What is the lead time for delivery?

Off-season lead time is 1-3 months, while peak season lead time is 3-6 months.

What payment terms are accepted?

We accept LC and T/T payment terms.

What is the warranty policy?

The product is designed for high reliability with a unitized construction to protect critical surfaces, though specific warranty terms are not detailed in the provided description.

Compact Silicon Carbide Mechanical Seal for Water Pump C12ahmn

Name: Compact Silicon Carbide Mechanical Seal for Water Pump C12ahmn
Brand: Changsha Torch Auto Parts Co., Ltd.
SKU: 2249631845

Hunan, ChinaChangsha Torch Auto Parts Co., Ltd.

US$1.00

10,000-19,999 Pieces

US$0.80

20,000+ Pieces

Product specifications

0.023 kg

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Structure

Single End

Pressure

High Pressure Mechanical Seals

Speed

General Speed Mechanical Seal

Temperature

High Temperature Mechanical Seal

Performance

Temperature

Standard

Type

Auto Mechanical Seal

Balance

Balanced

Transport Package

Box

Specification

0.023 kg

Trademark

Torch

Origin

China

HS Code

84842010

Production Capacity

2000000 Units/Year

Key features

Silicon Carbide Seal Face: Delivers exceptional resistance to heat, wear, and corrosion.

Unitized Design: Integrates rotating and stationary components with cup sleeve for simplified installation.

Automated Assembly: Manufactured using fully automated assembly lines for consistent quality.

High Reliability: Protects critical sliding surfaces from damage to enhance operational reliability.

High Performance: Engineered for high pressure, high temperature, and general speed applications.

Global Market Share: Holds a significant global market share in the automotive water pump seal segment.

Large Production Capacity: Annual production capacity of 20 million pieces by the largest manufacturer in China.

Fast Delivery: Off-season lead time of 1-3 months; Peak season lead time of 3-6 months.

Company profile

Changsha Torch Auto Parts Co., Ltd.

Hunan, China

Business Type: Manufacturer/FactoryExport Year: 2007-03-16Nearest Port: shenzhen,ningboAverage Response Time: ≤4.18hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DDP, DAP, CPT, FCA

AI-Powered supplier vetting

SummaryThe supplier is a combined automotive electrical-system provider with one production line, reported spark-plug output of 3,000,000 pieces, export coverage across multiple global regions, and self-operated import/export rights. It provides customization from samples and designs, ODM services, and OEM services for well-known brands. R&D includes two engineers and new products within the past year, but no SDK and no available R&D audit documentation were reported. Inventory is available, and overseas services include debugging, training, and equipment installation; however, no overseas warehouse or showroom is available. Service complaint handling has documented procedures and records, while broader service assessment and corrective/preventive-action procedures are not documented. No certification information or customer case details were provided. Manufacturing subcontracting lacks a valid contract, and finished products are checked by packing staff.

Supplier typeThe supplier is identified as a combined company providing automotive electrical-system solutions, manufacturing, export trade, service, quality control, and R&D capabilities. It also reports self-operated import/export rights, indicating direct export capability rather than an offshore-company structure.

After-Sales capabilityThe supplier offers debugging, training, and equipment installation, has a documented customer-complaint procedure with follow-up records, and maintains inventory capability. However, it has no overseas warehouse or showroom, and no written service-assessment or corrective/preventive-action procedures were reported.

R&D capabilityThe supplier reported new products within the past year, ODM capability, and two R&D engineers whose responsibilities include product development and technical support. The absence of available R&D design-input, output, review, verification, and validation documentation, together with no available SDK, limits evidence of a fully documented innovation system.

Production capacityThe supplier operates one production line, reports spark-plug output of 3,000,000 pieces, has six quality-control test equipment units, and maintains inventory capability. Against this, finished products are checked by packing staff, and the factory and related subcontractor have no valid manufacturing-capacity contract, creating documented production-control limitations.

Customization capabilityCustomization from samples and designs is explicitly available, and the supplier also reports ODM service capability. These entries provide direct evidence that it can support customer-specific product development or adaptation.

Client casesThe supplier states that it provides OEM services for well-known brands and has established multilingual services and localized warehousing and after-sales networks for African and South American markets. No named customers, project descriptions, or independently verifiable case details were provided.

Product Q&A

Q:What is the purpose of a mechanical seal?

To ensure the hydraulic tightness of the pump and prevent the loss of coolant. To protect the pump's bearings from contamination by keeping dirt and debris out.

Q:What are the mechanical seals in cars made of?

Seal faces are typically made of hard, wear-resistant materials like silicon carbide or carbon. Secondary seals (Cup ring/Bellows) are NBR/HNBR. Housing and springs are often made of high-performance alloys or stainless steel.

Q:What are the common reasons for a mechanical seal to fail?

Incorrect installation (touching faces with bare hands, wrong lubricants, improper compression, damaged parts), operating outside design parameters (exceeding pressure, temperature, or speed), dry running (insufficient lubrication), and misalignment (bent shaft, bad bearings, poor alignment).

Q:What is the model number of this seal?

The model number is C12AHMN.

Q:What are the key dimensions of the C12AHMN seal?

Shaft Diameter is 12, Seat O.D. is 30, Working Height is 9.3, Seat Height is 8, and Free Height is 19.5.