Essential Pre-Coating Equipment
Industrial Drying Oven
Remove Moisture Before Coating
A critical step between pretreatment and powder coating. Ketao drying ovens remove surface water and moisture to prevent coating defects like pinholes, bubbles and poor adhesion.
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Prevent coating defects (pinholes, bubbles) -
Fast moisture removal (80-120°C) -
Gas-, Diesel- oder Elektroheizungsoptionen -
Integrated with pretreatment line
Operating Range
Fast moisture removal
Defect Prevention Rate
95%+
What Is a Drying Oven and Why Do You Need It?
A drying oven is a heated chamber installed immediately after the pretreatment line.
After parts go through degreasing, rinsing and conversion coating, water droplets remain in recesses,
joints and complex geometries. If you powder coat wet parts, you will see coating defects.
The drying oven solves this problem by:
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Heating parts to 80-120°C to evaporate surface water quickly -
Creating controlled airflow to carry moisture away from the chamber -
Ensuring parts enter the coating booth completely dry -
Preventing pinholes, bubbles and adhesion failures in the final coating
⚠️ What happens without a drying oven?
Water trapped in recesses will turn to steam when the part enters the curing oven, causing pinholes,
bubbles and poor adhesion. Many coating failures can be traced back to insufficient drying.
Core Features
Ketao Drying Oven Key Features
Designed for stable temperature, fast drying and long service life.
Präzise Temperaturkontrolle
PID temperature controller with ±5°C accuracy. Programmable setpoint and timer for different part types.
- • Digital display and alarm system
- • Temperature sensors at multiple zones
- • Auto-adjust burner output
Efficient Air Circulation
Forced convection with centrifugal fans to distribute heat evenly and remove moisture quickly.
- • High-temperature resistant fans
- • Adjustable air velocity
- • Fresh air intake & exhaust system
Flexible Heizoptionen
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Technische Spezifikationen
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| Parameter | Spezifikation | Anmerkungen |
|---|---|---|
| Temperature range | cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits | cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits |
| Temperature uniformity | ±5°C | Measured across working zone |
| Heating source | Gas / Diesel / Electric | Customer selects based on local energy cost |
| Isolierung | 50–100mm mineral wool | Thickness depends on oven size and energy target |
| Chamber material | Galvanized or stainless steel | Stainless steel for harsh pretreatment environments |
| Air circulation | Forced convection | Centrifugal fans with adjustable speed |
| Control system | PID controller + HMI (optional) | Digital display, alarm and auto-control |
| Verweilzeit | 5–15 Minuten | Depends on part thickness and moisture level |
| Dimensions | Custom designed | Based on part size, line speed and layout |
Common Question
Drying Oven vs Curing Oven: What's the Difference?
Many buyers ask if they can combine both functions. Here's a clear comparison to help you decide.
| Aspekt | Trocknungsofen | Aushärtungsofen |
|---|---|---|
| Zweck | Remove water after pretreatment | Cure powder coating (cross-link) |
| Temperatur | cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits | 180–220°C |
| Position in line | After pretreatment, before coating booth | After coating booth, final step |
| Verweilzeit | 5–15 Minuten | 10–30 minutes (depends on powder) |
| Parts condition | Wet (after rinsing) | Dry with powder coating |
| Air quality requirement | Standard (moisture exhaust needed) | Clean (no contamination on coating) |
| Can they be combined? | ❌ Not recommended. Different temperatures, positions and cleanliness requirements mean separate ovens give better results. | |
💡 Can you skip the drying oven?
If your parts are very simple with no recesses (like flat sheets), you might use forced air blow-off instead of an oven.
But for most real-world parts—with holes, joints and complex geometry—a drying oven is the only reliable way to
prevent coating defects.
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Complete Line Integration
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+
We calculate the exact dwell time during the design stage based on your specific parts.
4. Which heating type is most economical: gas, diesel or electric?
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Diesel is convenient if gas infrastructure is not available. Electric is cleaner and easier to install but usually has higher running costs.
We can help you calculate the total cost of ownership for each option.
5. How much space do I need for a drying oven?
+
and your conveyor moves at 2 m/min, the oven needs to be about 20 meters long. We design the layout based on your workshop drawing
and can optimize for tight spaces.
Get a Drying Oven Quote for Your Production Line
Share your part dimensions, line speed and workshop layout. We'll design a drying oven that prevents coating defects and integrates perfectly with your system.
Technische Unterstützung verfügbar
E-Mail: ketucoatingline@gmail.com
Complete Your Production Line
Related Powder Coating Equipment
Build a complete powder coating system with Ketao's integrated equipment.
Pretreatment Line
Clean & Prepare Surface
Spray or immersion pretreatment to clean, degrease and apply conversion coating before drying and powder coating.
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3-7 stage spray or immersion -
Phosphate or chromate conversion -
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Aushärtungsofen
Cross-Link Powder Coating
High-temperature oven (180-220°C) to cure powder coating and achieve final film properties and durability.
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Precise temperature ±5°C -
Gas / diesel / electric options -
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Pulverbeschichtungsraum
Apply Powder Coating
Manual or automatic powder application booth with integrated powder recovery system for efficient coating.
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Manual & automatic gun options -
Integrated powder recovery -
Quick colour change design
💡 Need a Complete Production Line Solution?
Ketao designs integrated powder coating systems with pretreatment, drying, coating and curing equipment working perfectly together.
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