Part 1: Standard Production Process of Duct Heaters
We adopt standardized, inspection-oriented manufacturing processes to ensure stable performance, high efficiency and long service life of duct heaters, fully compliant with international industrial standards.
1. Custom Design & Simulation
We design duct heater structure and optimize heating layout according to customer’s air volume, temperature, pressure and explosion-proof requirements via thermal simulation, ensuring heating efficiency up to 98% with no local overheating.
2. Strict Raw Material Inspection
We select qualified 304/316L/310S stainless steel heating tubes and thickened shell materials. All raw materials pass PMI testing to guarantee high temperature and corrosion resistance.
3. CNC Precision Processing
Laser cutting and CNC machining ensure precise component size and tight assembly, guaranteeing overall structural stability and air tightness.
4. Heating Core Assembly
Finned tubes are precisely wound for larger heat dissipation area. Heating tubes are arranged evenly to achieve uniform air heating and high heat exchange efficiency.
5. Welding & Air Tightness Test
Full welding and seam polishing avoid air leakage. Every unit passes strict air tightness testing to ensure stable working performance under high wind pressure.
6. Standard Electrical Configuration
Equipped with certified temperature controllers, overload and over-temperature protection devices. Standard wiring ensures safe and intelligent operation, meeting CE safety standards.
7. Anti-Corrosion Surface Treatment
Carbon steel shells adopt high-temperature anti-rust spraying; stainless steel shells undergo passivation treatment to enhance anti-corrosion and anti-oxidation performance for harsh working environments.
8. Strict Factory Testing
All finished products pass power testing, high-temperature aging testing, insulation and continuous operation testing. Explosion-proof models meet CT4/BT4 grades with stable and accurate temperature control.
9. Parameter Calibration & Filing
Professional calibration of all operating parameters with complete test records and inspection reports, realizing full product quality traceability.
10. Finishing & Pre-Packaging Protection
Clean residual dust and welding slag, inspect full accessories, and protect vulnerable parts to ensure perfect condition before delivery.
Part 2: Professional Cross-Border Transportation Solution for Duct Heaters
We provide targeted packaging and diversified cross-border shipping solutions for duct heaters, effectively avoiding transit deformation and damage. We support FOB, CIF, CFR and EXW trade terms for global clients.
1. Hierarchical Professional Packaging Standard
Small/Sample Orders: Thick carton + foam shockproof packaging for fast delivery.
Standard Equipment: Fumigation-free export plywood boxes with internal fixed supports for stable transportation.
Large Custom Units: Reinforced wooden pallets + sealed wooden boxes, independent protection for electric control parts, split packaging for oversized equipment.
2. Diversified Global Shipping Modes
Express: DHL/FedEx/UPS for urgent samples & small orders (3-7 days worldwide).
Land Freight: Stable special lines for Southeast Asia, Central Asia and European neighboring countries.
Sea Freight: Cost-effective container shipping for large bulk orders, suitable for mass procurement.
Air Freight: Fast air channels for emergency bulk orders to guarantee delivery schedule.
3. Full-Process Transit Protection & After-Sales Guarantee
All export products are insured for transportation. We provide complete customs clearance documents, real-time logistics tracking and full after-sales support to ensure smooth delivery.
4. Standard Delivery Cycle
Conventional customization: 12-15working days
Large explosion-proof customization: 15-30 working days
Stable delivery cycle fully supports customers’ project progress.
Core Advantages of Our Production & Transportation System
1. Full standardized production and multi-layer inspection for stable quality;
2. Customized design for high-temperature, corrosion-resistant and explosion-proof working conditions;
3. Professional export packaging to realize zero transit damage;
4. Flexible multi-mode transportation to balance cost and timeliness;
5. Complete certification documents for global customs clearance and project acceptance.
About Us
