Industry-Verified Manufacturing Data (2026)

Soaking Drum

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Soaking Drum used in the Leather and Related Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Soaking Drum is characterized by the integration of Drum Shell and Drive Motor and Gearbox. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless Steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A rotating drum used in leather processing to soak and rehydrate hides.

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Product Specifications

Technical details and manufacturing context for Soaking Drum

Definition
The Soaking Drum is a critical component of the Beamhouse Module in leather manufacturing. It is a large, cylindrical, rotating vessel designed to soak raw hides in water and chemical solutions to rehydrate them after preservation, remove dirt and blood, and prepare them for subsequent liming and unhairing processes.
Working Principle
Raw hides are loaded into the drum along with water and soaking agents. The drum rotates slowly, tumbling the hides to ensure uniform contact with the solution. This mechanical action, combined with the chemical agents, facilitates rehydration, cleaning, and the initial removal of soluble proteins and salts.
Common Materials
Stainless Steel
Technical Parameters
  • Internal diameter and length of the drum cylinder. (mm) Customizable
Components / BOM
  • Drum Shell
    Forms the main cylindrical body that contains the hides and liquor.
    Material: Stainless Steel
  • Drive Motor and Gearbox
    Provides controlled rotational motion to the drum.
    Material: Various Metals
  • Manhole/Door
    Opening for loading and unloading hides.
    Material: Stainless Steel
  • Liquor Inlet/Outlet Ports
    For filling and draining the soaking solution.
    Material: Stainless Steel
Engineering Reasoning
0.2-0.8 bar (20-80 kPa) internal pressure, 0.5-3.0 rpm rotational speed
1.2 bar internal pressure causing drum shell deformation exceeding 5 mm, or 5.0 rpm causing centrifugal force exceeding 500 N at drum periphery
Design Rationale: Plastic deformation of AISI 304 stainless steel shell due to hoop stress exceeding 150 MPa yield strength, or bearing fatigue failure from Hertzian contact stress exceeding 1.2 GPa
Risk Mitigation (FMEA)
Trigger Corrosion-induced wall thinning from pH<3.0 tannin solutions
Mode: Drum shell rupture at 0.9 bar internal pressure
Strategy: 316L stainless steel cladding with 3 mm minimum thickness and quarterly ultrasonic thickness testing
Trigger Misalignment exceeding 0.1 mm/m between drum shaft and drive coupling
Mode: Gearbox bearing seizure at 2.5 rpm operation
Strategy: Laser alignment during installation with 0.05 mm/m tolerance and quarterly vibration monitoring below 4.5 mm/s RMS

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Soaking Drum.

stainless steel soaking drum for leather rotating drum for hide rehydration leather processing soaking equipment industrial soaking drum for hides leather tanning soaking drum with manhole

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Beamhouse Module
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Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric (non-pressurized)
flow rate: Batch process - no continuous flow
temperature: Ambient to 40°C (104°F)
drum loading: 60-75% of total volume
rotation speed: 2-8 RPM
slurry concentration: 5-20% solids by weight
Media Compatibility
✓ Chrome tanning solutions ✓ Vegetable tanning liquors ✓ Pickling brines
Unsuitable: Strong oxidizing acids (e.g., nitric acid, concentrated sulfuric acid)
Sizing Data Required
  • Daily hide processing capacity (kg/day)
  • Average hide thickness/size
  • Required soaking cycle time (hours)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Corrosion under insulation (CUI)
Cause: Moisture ingress through damaged insulation or cladding leading to localized corrosion of carbon steel shell, accelerated by high temperature cycling and acidic condensate formation.
Internal nozzle weld fatigue cracking
Cause: Thermal cycling and differential expansion between nozzle and drum shell creating cyclic stresses, combined with potential stress concentrations from poor weld geometry or pre-existing defects.
Maintenance Indicators
  • Visible weeping or staining from insulation indicating active corrosion
  • Abnormal drum temperature profile indicating internal fouling or refractory degradation
Engineering Tips
  • Implement comprehensive CUI inspection program with regular insulation condition assessment and removal for visual inspection at high-risk areas
  • Optimize thermal cycling procedures and consider hot bolting strategies during shutdowns to minimize thermal stress on nozzle connections

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality management systems ASME BPVC Section VIII - Pressure vessels EN 13445 - Unfired pressure vessels
Manufacturing Precision
  • Cylindrical shell roundness: +/- 0.5% of nominal diameter
  • Nozzle alignment: +/- 1.5° from design axis
Quality Inspection
  • Hydrostatic pressure test at 1.3x design pressure
  • Ultrasonic thickness testing of shell plates

Factories Producing Soaking Drum

Verified manufacturers with capability to produce this product in China

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✓ 96% Supplier Capability Match Found

T Technical Director from Australia Feb 11, 2026
★★★★★
"As a professional in the Leather and Related Product Manufacturing sector, I confirm this Soaking Drum meets all ISO standards."
Technical Specifications Verified
P Project Engineer from Singapore Feb 08, 2026
★★★★☆
"Standard OEM quality for Leather and Related Product Manufacturing applications. The Soaking Drum arrived with full certification. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from Germany Feb 05, 2026
★★★★★
"Great transparency on the Soaking Drum components. Essential for our Leather and Related Product Manufacturing supply chain."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

11 sourcing managers are analyzing this specification now. Last inquiry for Soaking Drum from Mexico (39m ago).

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Frequently Asked Questions

What is the primary function of a soaking drum in leather manufacturing?

A soaking drum rehydrates and cleans raw hides by rotating them in water or solutions, removing dirt, salt, and restoring moisture for further processing like tanning.

Why is stainless steel used for soaking drums?

Stainless steel resists corrosion from water and chemicals, ensures hygiene, and provides durability for long-term use in wet leather processing environments.

How does the drive motor and gearbox contribute to soaking drum operation?

The drive motor and gearbox control drum rotation speed, ensuring consistent tumbling of hides for uniform soaking and efficient rehydration without damage.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Leather and Related Product Manufacturing sector.

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