
Mold Heating & Cooling
Precision mold heating and cooling components — flat & spiral baffles, bubblers, cascade cooling pipes, phase-change thermal pins, water manifolds and 150 °C-rated plugs — for uniform mold temperature, 15–35% shorter cooling time and warpage-free parts.
- Flat & spiral baffles, bubblers and cascade pipes for deep cores and ribs
- Phase-change thermal pins with 10,000–200,000 W/m·K effective conductivity
- Water manifolds, hydro-circuit blocks & oil-compatible circuits up to 200 °C
- Brass, stainless steel & PA66-GF30 options with matched O-rings and plugs
- Sized by channel depth — L/D up to 50:1 in min Ø 3 mm channels
- MOQ 1 piece — cooling layout proposal included in free 24 h DFM review
Fast Response within 2 HoursSupport STEP, IGES, DWG, PDF Files
Technical Specifications
Mold Heating & Cooling Technical Parameters & Material Specs
Standard Materials
Brass / SUS304 / PA66-GF30
109 / 16 / ~0.3 W/m·K thermal conductivity
Working Temperature
30 – 250 °C
Water heat pipes; oil circuits to 200 °C, FKM plugs to 150 °C
Cooling Depth (L/D)
Up to 50:1
Thermal pins 50:1 · cascades 30:1 · baffles 15:1
Heat Transfer Gain
+20 – 40%
Spiral baffles vs flat; thermal pins cut cooling time 15–35%
| Parameter | Technical Details / Standard Values |
|---|---|
| Channel Diameter Range | Ø 3 mm (thermal pins) to Ø 6 mm+ (baffles & cooling pipes); larger bores per drawing |
| Depth-to-Diameter Ratio (L/D) | Flat/spiral baffles ≤ 15:1 · cascade pipes ≤ 30:1 · phase-change heat pipes ≤ 50:1+ |
| Working Temperature Range | Heat pipes 30–250 °C (water charge) or 10–120 °C (methanol); hydro-circuit blocks ≤ 200 °C oil; uni-joint plugs ≤ 80 °C water |
| Media Compatibility | Water, water/glycol (manifolds ≤ 120 °C), and heat-transfer oil (steel/brass blocks ≤ 200 °C) |
| Thread & Sealing Options | Tapered Rc/NPT self-sealing; parallel G/NPS with O-ring or PTFE tape; threadless expansion plugs with Buna/FKM O-rings |
| Heat Transfer Reference | P20 mold steel ≈ 29 W/m·K; BeCu inserts ≈ 105 W/m·K (3.6×); brass baffles 109 W/m·K; thermal pins 10,000–200,000 W/m·K effective |
Need a non-standard size or special alloy core pin? We specialize in 100% custom machining according to your 2D/3D CAD drawings.
CUSTOM MACHINING CAPABILITIES
Tailored Mold Heating & Cooling Machining & Special Processing Limits
📏 Dimensional Limits
Micro & Complex Dimensions
- Outer Diameter (OD): Min Ø 0.2 mm to Max Ø 50.0 mm
- Pin Length: Up to 600 mm (ultra-long mold heating and cooling components supported)
- Special Shapes: Stepped, tapered, flat D-cut, square head & eccentric pin tip
⚙️ Special Processes
Cooling & Deep Hole EDM
- Cooling Channels: Internal water cooling holes & spiral baffle channels
- Air Venting: Porous / vented mold heating and cooling components structures for gas release
- Micro-EDM: Complex cavity contours, thread inserts and micro-grooves
🛡️ Surface Treatments
Advanced PVD Coatings
- TiN / TiAlN: High-heat resistance for die casting molds
- DLC (Diamond-Like Carbon): Ultra-low friction for dry / cleanroom molding
- Nitriding Treatment: HV 900–1100 surface hardness for extended mold life
Support 100% Customization According to Your Drawings
Send us your CAD files for a free DFM (Design for Manufacturability) analysis and instant quotation.
QUALITY ASSURANCE & INSPECTION
Rigorous Precision Inspection & Quality Control Standards
🔬 Inspection HardwareHigh-Precision Testing Equipment
- ZEISS CMM for complex 3D contours
- Nikon optical projector & tool presetters (0.001 mm resolution)
- Vickers hardness testers & surface roughness gauge
🎯 Quality StandardsZero-Defect Quality Assurance
- 100% critical dimension inspection before packaging & shipment
- Concentricity & runout verification under optical magnifiers
- Surface micro-scratch & polish quality double-check
📜 Material ComplianceFull Material & Heat Treatment Traceability
- Spectrometer material composition analysis report provided
- Original Mill Test Certificate (MTC) & heat treatment logs
- RoHS & REACH environmental compliance statements
Download Sample Quality Control & Inspection Reports
Review our standard CMM inspection sheet, Material Composition Certificate, and RoHS report templates.
MANUFACTURING PROCESS & LEAD TIME
Precision Machining Workflow & Reliable Delivery Timelines
Turning / Soft CNC
Precision rough turning & blank shaping
Heat Treatment
Vacuum quenching (HRC 48–62)
Rough Grinding
Centerless & OD precision grinding
Finish Grinding / EDM
Jig grinding & micro-EDM features
Surface Coating
PVD (TiN/DLC) or polishing (Ra 0.1)
100% CMM QC
Dimension check & safe packaging
📦 Standard Delivery
3–5 Working Days
For standard dimensions, off-the-shelf standard blanks, and standard SKD61/H13 materials.
🛠️ Custom Manufacturing
7–10 Working Days
For tailored CAD drawings, complex cooling channels, special coatings, or tight ±0.002 mm tolerances.
⚡ Fast-Track Option
24–72 Hours Express
Emergency mold repair green channel available for urgent downtime orders (upon CAD review).
APPLICATION & INDUSTRY SOLUTIONS
High-Performance Mold Temperature Control for Demanding Applications
🚗 Automotive
Automotive Connector & Sensor Molds
High-flow cascade assemblies hold sub-10 s cycles on connector housings; balanced waterlines keep cavity-to-cavity temperature uniform for PPAP-ready parts.
🩺 Medical
Medical & Food-Grade Molds
PA66-GF30 nylon baffles below 120 °C eliminate metal contamination and provide electrical insulation in cleanroom and food-contact tooling.
🔌 Electronics
3C Electronics & Micro Connectors
Ø 3–6 mm thermal pins pressed into micro core pins and tall bosses remove hot spots no drilled waterline can reach, cutting sink and hold time.
🔥 Engineering Plastics
Oil-Heated Molds for PC / POM / PA6T
Hydro-circuit blocks rated to 200 °C with oil media keep high-temperature engineering resins stable while heat pipes extend cooling into the core.
Key Mold Performance Challenges We Resolve:
Hot Spots in Deep Cores
Sealed phase-change heat pipes transfer heat 100–1000× faster than solid steel conduction, holding ΔT < 5 °C along the core length.
Sink Marks & Warpage
Spiral baffles raise heat transfer 20–40% over flat blades, eliminating stagnant zones at the flow-reversal tip where sinks form.
Water Leaks & High-Temperature Sealing
FKM (Viton) O-rings and 150 °C-rated plug bodies hold pressure integrity 2+ years; oil circuits use solid steel/brass blocks instead of water-only fittings.
MANUFACTURING CAPABILITY & DETAIL GALLERY
Precision Craftsmanship & Advanced Factory Hardware

Mirror Finish & Micro Polish
Ra 0.1 µm surface roughness, zero micro-burr or tool marks on pin tip.

Precision Chamfering & R-Angle
Smooth transition radii and precise lead-in chamfers per CAD specs.

PVD Coating & Nitriding Layers
Uniform TiAlN / DLC coating film thickness with high surface adhesion.

Complex Head & Tip Geometries
Precision stepped, D-cut flat, and eccentrically shaped pin profiles.
High-End Machining & Tooling Hardware:

⚡ Wire EDM
Seibu & Sodick Slow-Feed Wire Cut
- Corner radius accuracy down to R0.02 mm
- Surface roughness Ra 0.2 µm after wire cutting
- Suitable for micro-slots, keyways, and complex pin contours

⚙️ Precision Grinding
Mitsui & WASINO Precision Grinders
- Centerless & jig grinding for tight OD/length limits
- Diameter tolerance controlled within ±0.001–±0.002 mm
- Coaxiality & roundness ≤ 0.002 mm guaranteed

🛠️ CNC & EDM
Mikron High-Speed CNC & Sodick EDM
- CNC high-speed turning & milling for blank preparation
- Micro-cavity EDM for cooling channels and venting slots
- Automated tool changers for high-volume consistency
ORDERING PROCESS & FREQUENTLY ASKED QUESTIONS
How to Order Custom Mold Heating & Cooling Components & Frequently Asked Questions
📁 Step 1
Submit CAD & Specs
Send 2D/3D drawings (STEP, DWG, PDF) with quantity, material, and tolerance requirements.
⏱️ Step 2
24H DFM & Quotation
Our engineering team conducts DFM analysis and provides a competitive quote within 24 hours.
⚙️ Step 3
Precision Manufacturing
CNC turning, vacuum heat treatment, jig grinding, and surface coating per your specifications.
✈️ Step 4
100% QC & Express Shipping
100% CMM dimensional verification, anti-rust packaging, and global air express delivery.
What is your Minimum Order Quantity (MOQ) for custom mold heating and cooling components?
We support 1-piece prototyping! Whether you need a single replacement mold heating and cooling components or bulk batch production of 10,000+ pieces, we accommodate all order volumes.
How do you guarantee material authenticity and heat treatment quality?
Every batch comes with original Mill Test Certificates (MTC) and spectral material analysis reports. Vacuum heat treatment logs (HRC hardness testing) are provided upon request.
What packaging and anti-rust protection do you apply for international shipping?
All finished mold heating and cooling components undergo ultrasonic cleaning, immersion in heavy-duty anti-rust oil, individual vacuum plastic sealing, and padded shockproof box packaging.
Can you machine non-standard custom shapes or internal cooling channels?
Yes! We specialize in complex mold heating and cooling components including stepped profiles, D-cuts, square heads, micro-EDM cavities, and internal/spiral water cooling channels per CAD specs.
Ready to Upgrade Your Mold Component Precision?
Send us your drawing today to receive a free DFM review and detailed quotation within 24 hours.
🔒 100% Confidential | NDA Protected | Instant DFM Assessment
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