Cooling channels (if applicable): Temperature Range 10-90°C

Component Specifications

Definition

Cooling channels are integral hydraulic pathways machined into the wall thickness of barrel liners in injection molding machines. These channels facilitate controlled circulation of thermal transfer fluids (typically water or oil-based coolants) to maintain optimal barrel temperature profiles, prevent material degradation, and ensure consistent melt viscosity during plastic processing operations.

Working Principle

Cooling channels operate on convective heat transfer principles. Coolant circulates through the channels, absorbing thermal energy from the heated barrel liner via forced convection. This maintains precise temperature gradients along the barrel length, preventing overheating of plastic materials and enabling stable processing conditions for various polymer types.

Materials

Typically manufactured from corrosion-resistant materials: P20 tool steel (pre-hardened), H13 hot-work steel, or stainless steel (304/316). Internal surfaces often receive electropolishing or chrome plating to prevent scale buildup and maintain thermal conductivity.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Surface Finish	Ra ≤ 0.8 μm
Channel Diameter	6-12 mm
Coolant Flow Rate	15-40 L/min
Temperature Range	10-90°C
Operating Pressure	3-6 bar

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 12164, DIN 16742

Parent Products

This component is used in the following industrial products

Barrel Liners

Replaceable cylindrical sleeves that form the inner surface of extrusion or injection molding barrels.

View Product Details

Engineering Analysis

Risks & Mitigation

Corrosion buildup reducing thermal efficiency
Channel blockage from mineral deposits
Coolant leakage causing temperature fluctuations
Thermal stress cracking from improper heating/cooling cycles

FMEA Triads

Trigger: Mineral deposit accumulation in hard water systems
Failure: Reduced coolant flow leading to localized overheating
Mitigation: Install water softening systems and implement regular descaling procedures

Trigger: Corrosion due to incompatible coolant chemistry
Failure: Channel wall degradation and potential coolant contamination
Mitigation: Use corrosion inhibitors and specify compatible coolant materials

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.1 mm channel diameter, ±2°C temperature control

Test Method

Pressure decay testing (ISO 12164), thermal imaging analysis, flow rate verification

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Cooling channels (if applicable)

Manufacturer profiles associated with Cooling channels (if applicable).

Sourcing Cooling channels (if applicable) from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Related Components

Tie Layer

Tie layer is a bonding component in multi-layer co-extruded barrier films that ensures adhesion between incompatible polymer layers.

Mold Release Coating

Specialized coating applied to molds to facilitate easy release of silicone seal rings during manufacturing.

Silicone Polymer Base

Silicone polymer base is a high-temperature resistant polymer material used as the foundational component in silicone rubber compounds for industrial applications.

Reinforcing Filler

Reinforcing filler is a material added to silicone rubber compounds to enhance mechanical properties, thermal stability, and durability in high-temperature applications.

Frequently Asked Questions

Why are cooling channels essential in barrel liners?

Cooling channels prevent polymer degradation by maintaining optimal barrel temperatures, reduce cycle times through faster cooling, and ensure consistent product quality by stabilizing melt viscosity.

How often should cooling channels be inspected?

Monthly visual inspections for leaks and quarterly flow tests are recommended, with full descaling maintenance every 6-12 months depending on water hardness and coolant quality.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Cooling channels (if applicable)