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High-Torque Shaft Seal for Heavy-Duty Concrete Mixer Workloads
US$60.00-78.00
80 Pieces

Product profile

Structure

Single End

Pressure

High Pressure Mechanical Seals

Speed

General Speed Mechanical Seal

Model NO.

Shaft head seal

Temperature

High Temperature Mechanical Seal

Performance

High Pressure

HRC

60-78

Transport Package

Fumigation Wooden Case

Specification

1-6stere

Origin

China

HS Code

8474900000

Production Capacity

70000pieces/Year

Key features

High-Torque Durability: Engineered with high-strength alloy materials to withstand heavy-duty concrete mixer workloads and abrasive slurry.
Leak-Proof Performance: Precision-machined split collar design effectively blocks concrete slurry, water, and dust from entering the shaft assembly.
Extended Service Life: High-grade alloy construction offers 6-12 months of service life under normal operating conditions.
Customization Support: Available in standard sizes (60-200mm) with full customization options for non-standard shaft diameters and flanges.
Easy On-Site Installation: Split-style lock collar and pre-machined rings allow for simple replacement without specialized tools.
Global Logistics Network: Comprehensive shipping solutions via DHL, UPS, and FedEx with real-time tracking to 200+ countries.
ISO and CE Certified: All products undergo spectrum analysis and mechanical inspection, complying with ISO9001 and CE standards.

Company profile

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: 1 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤18h

AI-Powered supplier vetting

SummaryThe supplier is a professional manufacturer and processor of construction machinery, accessories, cutting molds, machine tools, and mechanical parts for mining and metallurgy. It operates a 13,000 m² manufacturing plant with three production lines and equipment including automatic casting, CNC, milling, and painting machinery. Customization is supported across samples, designs, full customization, minor customization, and flexible customization, with ODM and OEM capability stated. Quality controls include 100% finished-product inspection and six quality personnel, but service-management procedures, corrective-action records, complaint-handling procedures, warehouse-control documentation, and management-system certifications were not found. The supplier does not provide 3D software design, SDKs, overseas facilities, or offline trade-show participation. Financial evidence is insufficient for a positive credibility assessment.
Supplier typeThe supplier identifies itself as a professional technical supplier and its business scope covers production and sales of construction machinery, accessories, cutting molds, machine tools, and mechanical parts for mining and metallurgy. Its commercial activity is classified as manufacturing and processing machinery, supported by a stated 13,000 m² manufacturing plant.
CertificationsThe supplier-management-system certification status is explicitly recorded as NIL. No certification holding is evidenced in the provided slices.
After-Sales capabilityOne R&D engineer is responsible for product research and development as well as after-sales service, and ODM service is available. However, no written procedures or records were found for supplier service assessment, corrective and preventive actions, or effective customer-complaint handling, so the overall after-sales system is not demonstrated.
Financial creditThe slices provide limited historical financial data, including operating revenue for 2024 and 2023, but the figures are not sufficient to establish financial strength or stability. Reported gross profit and operating profit are both zero in the 2024 data, which is an explicit negative indicator.
R&D capabilityThe supplier has one R&D engineer and provides ODM services, while the engineer handles product R&D and after-sales service. Nevertheless, no new products were reported during the past year, and the supplier lacks 3D software design capability and an available SDK, indicating limited evidenced innovation resources.
Production capacityProduction capability is supported by three production lines, a 13,000 m² plant, and automatic casting, CNC, milling, and painting equipment. The supplier also reports 100% finished-product inspection, although the stated inspection method is checking by packing staff, and the available information does not establish broader process-control maturity.
Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM and OEM capability, although it does not provide 3D software design services.

Product Q&A

Q:What is the main purpose of these concrete mixer shaft seals?
A:
These seals are core components for the mixer's shaft end, designed to prevent concrete slurry from entering the bearing housing and block lubricating grease from leaking out. They protect the mixer's main shaft and bearings from abrasive wear, ensuring long-term stable operation of the mixing system.
Q:Which concrete mixer models are these seals compatible with?
A:
Our alloy sealing rings and collars are engineered to fit most mainstream twin-shaft concrete mixers, including models from common international brands. We offer standard sizes (customizable upon request) for shaft diameters ranging from 60mm to 200mm. Please provide your mixer model, shaft size, and part number for a precise match.
Q:What materials are these seals made of?
A:
The main components are high-strength alloy steel (for the sealing rings and collars) paired with wear-resistant rubber/PTFE elements. The alloy body provides excellent resistance to impact and abrasion from concrete aggregates, while the sealing components maintain a tight, leak-proof fit even under high-load mixing conditions.
Q:What causes seal failure in concrete mixers, and how can these seals prevent it?
A:
The most common causes of failure are abrasive concrete slurry intrusion, insufficient lubrication pressure, and high-temperature wear. Our AB ring design creates a multi-stage sealing barrier to block slurry entry, while the precision-machined alloy surfaces reduce friction and wear. Regular greasing (per the mixer's maintenance schedule) will maximize their lifespan.
Q:Do these seals come with installation instructions?
A:
Yes. Each order includes a detailed installation guide with step-by-step instructions for assembly, alignment, and torque specifications. We also provide technical support via email/WhatsApp for complex installations.

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*To:Huachuang Maanshan Construction Machinery Co., Ltd
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