From Non-Standard Dimensions to Extreme Material Science—We Build What Others Can’t.
Engineering Your Perfect Thermal Match: APT Custom Chiller Solutions
APT Group specializes in Custom Industrial Chiller R&D, moving beyond standard manufacturing to engineer thermal precision. We solve the cooling challenges that off-the-shelf units cannot address.
Our engineering team partners with you to analyze specific thermal loads, environmental constraints, and fluid compatibility. We ensure every unit is a perfect match for your facility.
Proven Customization Experience:
- Hazardous Environments: Ex d/e Explosion-proof certified systems for chemical plants.
- Corrosive Media: Pure Titanium and 316L Stainless Steel cooling circuits.
- Space-Constrained Sites: Slim-line footprints and modular integrated designs.
- Precision Control: Custom voltage and VFD (Variable Frequency Drive) integration.
Dimensional Customization
Standard chillers often force you to compromise your floor plan. At APT, we do the opposite. Whether you require an extra-slim 3.2M profile to fit narrow factory aisles or a compact modular footprint to integrate into existing machinery lines, our engineering team reconfigures the internal component layout to meet your specific spatial constraints without sacrificing cooling performance.
Material Science Customization
Corrosive environments and sanitary requirements demand specialized materials. We provide a spectrum of metallurgical options, from Pure Titanium heat exchangers for seawater and high-acid media to 316L Sanitary Stainless Steel for food-grade and pharmaceutical applications. By matching the right material to your fluid chemistry, we ensure long-term durability and prevent system contamination.
Safety & Compliance
Safety is non-negotiable in volatile environments. APT is a leader in Explosion-Proof (Ex d/e) chiller design, featuring fully sealed electrical enclosures, non-sparking ventilation fans, and reinforced safety ductwork. Specifically engineered for the chemical, coating, and oil & gas sectors, our systems meet rigorous safety standards to protect your personnel and your investment.
Power & Control design
Achieve precise thermal stability with our advanced control suites. We offer Variable Frequency Drive (VFD) integration for energy-optimized performance and stable temperature regulation. To support our global clients, we customize electrical systems for any AC/DC voltage requirement, complemented by visualized monitoring interfaces that provide real-time data on pressure, flow, and system health.
Case Studies & Industry Applications
Thermal Resilience in Hazardous Environments
Custom Explosion-Proof & Dust-Tight Cooling Solutions
The Operational Challenge: Beyond Standard Limits
In high-stakes industrial sectors, cooling equipment must act as a safety barrier rather than a liability. Standard chillers fail prematurely in these environments due to:
Combustible Hazards: The presence of volatile gases (Hydrogen, Acetylene) or conductive dust creates a constant risk of catastrophic ignition from electrical sparks.
Corrosive Deterioration: High concentrations of acid mists or salt spray lead to rapid pitting and failure of standard aluminum fins and copper piping.
Restricted Airflow & Heat: Installation within explosion-proof bunkers or narrow facility corridors often leads to thermal short-circuiting.
High Maintenance Friction: Servicing equipment in “Zone 1” or “Zone 2” areas requires complex safety permits and downtime, making reliability the #1 priority.
Our R&D approach for hazardous environments moves away from “standard assembly” toward Safety-First Engineering.
Certified Ex d/e Architecture: All core electrical components are housed in heavy-duty, cast aluminum explosion-proof enclosures. Every cable entry utilizes certified Ex-rated glands to provide a total flame-path seal.
Advanced Metallurgy & Coatings: For acidic or saline air, we utilize Pure Titanium heat exchangers or E-coated (Epoxy) condenser fins. The chassis is available in 316L Mirror-Polished Stainless Steel for a 10+ year structural lifespan.
Non-Sparking Ventilation: Our fans are engineered with anti-static, non-sparking materials. In the event of mechanical friction, the fan assembly is designed to prevent the generation of incendiary sparks.
Precision Intelligence: Integrated PLC systems support ±0.5°C thermal stability, with remote Modbus/Ethernet protocols allowing operators to monitor system health without entering high-risk zones.
Petrochemicals & Oil
Application: Reactor Jacket Cooling & Solvent Recovery in volatile environments.
- Ex d IIB/IIC T4 Certified
- Non-Sparking Fan Systems
Powder Coating & Milling
Application: High-dust hydraulic station cooling and air filtration thermal control.
- IP65 Dust-Tight Sealing
- Reinforced Filter Access
Pharmaceuticals
Application: Cleanroom centrifuges and high-purity chemical extraction processes.
- 316L Sanitary Fluid Circuits
- Low-Vibration Silent Design
Mining & Tunneling
Application: Deep-shaft drill cooling and equipment heat dissipation in confined spaces.
- Anti-Corrosive Metal Chassis
- Modular Compact Footprint
In food processing and pharmaceutical manufacturing, cooling systems face unique biological and chemical challenges:
Bacterial Proliferation: Standard carbon steel or copper piping can harbor biofilms and bacteria in stagnant areas, compromising product purity.
Aggressive Cleaning Agents: Daily Wash-down procedures using caustic sodas and high-pressure steam quickly corrode standard industrial coatings.
Dust & Particle Control: Conventional air-cooled fans can stir up dust and micro-particles, which are strictly prohibited in GMP-certified cleanrooms.
Compliance Rigidity: Equipment must meet international sanitary standards (such as FDA or GMP) to ensure every batch is safe for human consumption.
the APT Design Philosophy
We prioritize “Sanitary Integrity” by re-engineering every fluid contact point:
Full 316L Stainless Steel Circuitry: Every internal pipe, tank, and heat exchanger is crafted from AISI 316L Stainless Steel, ensuring zero leaching and maximum resistance to chemical sanitizers.
Seamless Welding Technology: We utilize orbital TIG welding to eliminate internal crevices where bacteria could hide, ensuring a completely smooth fluid path.
Water-Cooled Silent Operation: For ultra-clean environments, we offer Water-Cooled condensers that eliminate cooling fans, preventing air turbulence and dust circulation.
Mirror-Polished Chassis: The exterior is finished with a high-grade mirror polish, making it easy to wipe down and resistant to the accumulation of airborne contaminants.
Case Studies & Industry Applications
Custom 316L All-Stainless Steel Cleanroom Chiller
Dimensional Agility: Custom Footprint Solutions
At APT, we understand that industrial space is a premium asset. Our “Form-Follows-Function” engineering approach allows us to deliver high-capacity cooling within the most restrictive physical envelopes. Whether it is a 3.2-meter ultra-slim unit for narrow access or a modular cascaded system for low-ceiling basements, we re-engineer the internal architecture to ensure maximum performance with a minimum footprint.
Engineering Excellence —— Our Customization DNA
Core Competencies
R&D Focused Engineering
We are more than assemblers. APT operates an independent thermodynamics lab capable of simulating extreme industrial environments—ranging from 50°C heatwaves to -30°C arctic conditions—for condenser and compressor performance optimization.
Material Science Mastery
From Grade 1 Pure Titanium to 316L Pharmaceutical-Grade Stainless Steel, we possess deep expertise in specialized welding and thermal efficiency, ensuring long-term equipment lifespan in highly corrosive environments.
Flexible Production Line
Our factory supports “MOQ: 1 Unit” bespoke manufacturing. Whether it is a 3.2-meter ultra-slim chassis or a 100HP explosion-proof mega-unit, every project is delivered under a unified, rigorous quality control system.
The 4-Step Engineering Journey
Technical Consultation
We conduct a comprehensive Thermal Audit to analyze ambient chemistry, peak heat loads, and specific site constraints (Ex-proof zones or high-salinity air).
3D Virtual Integration
Our engineers provide high-fidelity CAD/3D models for virtual fit-testing, ensuring the unit integrates perfectly with your existing pipelines and floor space.
Precision Fabrication
Using Grade 1 Titanium or 316L Stainless Steel, we execute specialized welding and integrate world-class components (Bitzer, Danfoss, Schneider).
FAT & Validation
Rigorous Factory Acceptance Testing (FAT) under simulated maximum loads ensures “Plug-and-Play” reliability and zero-fault deployment at your facility.
Comprehensive Safety Protections
High/Low Pressure Protection
Monitors refrigerant pressure in real-time, preventing compressor damage.
Compressor Overload
Prevents compressor burnout caused by excessive load or voltage.
Phase Sequence Protection
Ensures the correct rotation of the pump and compressor.
Anti-Freeze Protection
Prevents ice formation on the heat exchanger when oil temp is too low.
Oil Pump Overload
Protects the gear pump from damage due to oil blockages.
Flow Detection (Optional)
Triggers alarm if oil flow rate drops below safe operating levels.