Industry-Verified Manufacturing Data (2026)

Cooling Jacket

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Cooling Jacket used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Cooling Jacket is characterized by the integration of Coolant Inlet Port and Coolant Outlet Port. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless Steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A cooling component that surrounds and regulates the temperature of a high-speed spindle to prevent overheating during operation.

Product Specifications

Technical details and manufacturing context for Cooling Jacket

Definition
A cooling jacket is an essential component of a high-speed spindle system designed to maintain optimal operating temperatures by circulating coolant around the spindle housing. It prevents thermal expansion, reduces friction, and extends the lifespan of spindle bearings and other critical components during high-speed machining operations.
Working Principle
The cooling jacket operates by circulating a coolant fluid (typically water or oil-based) through channels or passages surrounding the spindle housing. As the spindle generates heat during high-speed rotation, the coolant absorbs this thermal energy and carries it away to an external heat exchanger, maintaining a stable temperature and preventing performance degradation.
Common Materials
Stainless Steel, Aluminum Alloy, Copper
Technical Parameters
  • Inner diameter matching the spindle housing outer diameter (mm) Per Request
Components / BOM
  • Coolant Inlet Port
    Entry point for coolant fluid into the jacket
    Material: Stainless Steel
  • Coolant Outlet Port
    Exit point for coolant fluid from the jacket
    Material: Stainless Steel
  • Cooling Channels
    Internal passages that guide coolant flow around the spindle
    Material: Aluminum Alloy
  • Sealing Gaskets
    Prevent coolant leakage between jacket and spindle housing
    Material: Synthetic Rubber
Engineering Reasoning
0.5-3.0 MPa (5-30 bar) at 10-25°C inlet temperature, flow rate 15-40 L/min
Pressure drop exceeding 0.8 MPa (8 bar) across jacket, coolant temperature exceeding 60°C, or flow rate below 8 L/min
Design Rationale: Thermal fatigue from cyclic temperature gradients exceeding 150°C/min, cavitation at vapor pressure below 0.1 MPa (1 bar absolute), and calcium carbonate scaling at Langelier Saturation Index > 0.5
Risk Mitigation (FMEA)
Trigger Coolant pump impeller erosion from 50 ppm suspended solids exceeding 5 μm particle size
Mode: Flow reduction to 5 L/min causing spindle temperature rise to 120°C
Strategy: Install 3 μm absolute filtration with differential pressure monitoring at 0.15 MPa (1.5 bar)
Trigger Glycol degradation forming formic acid at pH < 6.5 over 2000 operating hours
Mode: Copper tube corrosion at 0.5 mm/year leading to pinhole leaks at 0.3 MPa (3 bar)
Strategy: Implement automated pH monitoring with 25% ethylene glycol concentration control ±2%

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Cooling Jacket.

Applied To / Applications

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

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Max working pressure: 6 bar, Max burst pressure: 12 bar
flow rate: Recommended: 10-25 L/min, Max: 30 L/min
temperature: Operating range: -20°C to +80°C, Coolant temperature: 5°C to 40°C
slurry concentration: Not recommended for slurry applications; clean coolant only
Media Compatibility
✓ Water-glycol mixtures (30-50% glycol) ✓ Synthetic oil-based coolants ✓ Deionized water with corrosion inhibitors
Unsuitable: Abrasive slurry environments or corrosive chemical coolants
Sizing Data Required
  • Spindle outer diameter (mm)
  • Required heat dissipation (kW)
  • Available coolant flow rate (L/min)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Corrosion pitting
Cause: Chemical attack from coolant additives, pH imbalance, or galvanic corrosion due to dissimilar metals in contact with the jacket material.
Fouling and scaling
Cause: Mineral deposits or biological growth from untreated water, leading to reduced heat transfer efficiency and potential overheating.
Maintenance Indicators
  • Visible coolant leakage or weeping at joints, welds, or connections
  • Abnormal temperature rise in the process fluid or equipment, indicating reduced cooling efficiency
Engineering Tips
  • Implement regular water treatment and chemical analysis to maintain proper pH and inhibitor levels, preventing corrosion and scaling.
  • Establish a routine cleaning schedule using mechanical or chemical methods to remove deposits, ensuring optimal heat transfer and flow.

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 Quality Management Systems ASTM A240/A240M Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications CE Marking (Pressure Equipment Directive 2014/68/EU)
Manufacturing Precision
  • Bore Diameter: +/-0.05mm
  • Flatness of Sealing Surfaces: 0.08mm
Quality Inspection
  • Hydrostatic Pressure Test
  • Dye Penetrant Inspection (DPI)

Factories Producing Cooling Jacket

Verified manufacturers with capability to produce this product in China

✓ 97% Supplier Capability Match Found

P Procurement Specialist from Canada Jan 20, 2026
★★★★★
"Found 11+ suppliers for Cooling Jacket on CNFX, but this spec remains the most cost-effective."
Technical Specifications Verified
T Technical Director from United States Jan 17, 2026
★★★★★
"The technical documentation for this Cooling Jacket is very thorough, especially regarding technical reliability."
Technical Specifications Verified
P Project Engineer from United Arab Emirates Jan 14, 2026
★★★★★
"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Cooling Jacket so far."
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.”

5 sourcing managers are analyzing this specification now. Last inquiry for Cooling Jacket from Germany (19m ago).

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Frequently Asked Questions

What materials are used in this cooling jacket and why?

This cooling jacket is constructed from stainless steel for durability and corrosion resistance, aluminum alloy for lightweight heat dissipation, and copper for superior thermal conductivity in critical areas, ensuring optimal temperature regulation for high-speed spindles.

How does this cooling jacket prevent spindle overheating?

The jacket surrounds the spindle with precisely engineered cooling channels that circulate coolant, efficiently absorbing and dissipating heat generated during high-speed operation. This maintains consistent operating temperatures and prevents thermal damage to spindle components.

What maintenance does this cooling jacket require?

Regular inspection of sealing gaskets for leaks, cleaning of coolant inlet/outlet ports to prevent clogging, and monitoring coolant quality are recommended. The durable materials minimize frequent maintenance, but periodic checks ensure long-term reliability in industrial environments.

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.

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