Custom OEM AC DC Switching Power Supply Manufacturers & Exporters for León

Tier-1 & Tier-2 Automotive Robotics

Supplying clean 24VDC control power for PLC cabinets, robotic welders, and optical vision inspection stations across the León-Silao automotive cluster. Keldan's DIN-rail units incorporate Active Power Factor Correction (PFC > 0.98) to suppress harmonic feedback into factory microgrids, ensuring zero logic resets or bus dips during heavy pneumatic and servo motor accelerations.

Automated Tannery & Footwear Machinery

León manufactures over 70% of Mexico’s footwear. Modern CNC cutting tables, computer-stitched sewing heads, and automated tanning drums operate in environments laden with airborne moisture, corrosive chemical mists, and heavy mechanical shock. Keldan delivers conformal-coated PCB assemblies and IP67 sealed power drivers that prevent dendrite growth and chemical bridging across high-voltage traces.

Substation & CFE Grid Volatility Mitigation

Electrical feeds from the Comisión Federal de Electricidad (CFE) in central Mexico frequently exhibit voltage sags down to 90VAC during peak regional manufacturing hours and lightning-induced surges exceeding 280VAC. Our custom OEM switching power supplies boast a sustained 300VAC input surge tolerance for 5 seconds, integrated gas-discharge tubes (GDT), and metal oxide varistors (MOV) that safeguard downstream sensitive instruments.

1. Nearshoring Wave Across Guanajuato Puerto Interior (GPI)

The massive relocation of assembly lines from Asia and Northern Europe to the Guanajuato automotive cluster has created an immediate deficit in drop-in replacement power conversion hardware. System integrators in León cannot afford 16-to-24-week lead times from legacy German or Japanese brands. Keldan bridges this gap by acting as an agile OEM design partner, fabricating pin-compatible, dimension-matched DIN rail and enclosed power supplies within short 2-to-3-week manufacturing cycles.

From custom wire harnesses and terminal blocks (screw vs. spring-clamp) to bespoke dual-rail voltage outputs (e.g., 24VDC for PLC logic paired with 12VDC for camera sensors), our engineering division customizes units down to the component BOM level.

2. Compliance with NOM-001-SEDE & Mexico’s Strict Código de Red

Industrial operations connected to medium and high-voltage grids in Mexico face intense regulatory scrutiny under the Código de Red established by the Comisión Reguladora de Energía (CRE). Non-compliant industrial facilities with low power factor ratings (< 0.95 lagging) face heavy monthly fines. Traditional switched-mode power supplies without active power correction inject unwanted third and fifth harmonics into factory distribution boards.

Our latest generation of 240W, 480W, and 960W DIN rail power supplies integrates internal two-stage Active PFC topologies, maintaining a Power Factor greater than 0.96 even under 40% partial load conditions, directly safeguarding León factories against regulatory non-compliance.

3. Footwear Automation & Industry 4.0 Digitalization

To maintain competitiveness against Asian import pressure, León’s shoe and leather goods manufacturing hub is aggressively upgrading to automated CNC leather cutting, robotic gluing cells, and real-time RFID tracking systems. These compact automation pods demand ultra-slim power modules that dissipate minimal internal heat.

Keldan's ultra-compact LRS and NDR series utilize high-frequency planar transformers and synchronous rectification MOSFETs, achieving up to 93% conversion efficiency. Lower thermal dissipation eliminates the need for internal cooling fans, preventing ambient leather dust and airborne particles from infiltrating the electronics enclosure.

4. Commercial Architectural Lighting & Harsh Outdoor Signage

León's commercial corridors, shopping plazas (such as Plaza Mayor), and municipal logistics hubs require heavy-duty outdoor LED lighting solutions capable of enduring intense UV radiation and severe summer convective storms. Standard outdoor power bricks often fail due to water ingress or thermal degradation of plastic casings.

Our LPV and LDV series feature robust extruded aluminum or flame-retardant 94V-0 polymeric shells fully vacuum-encapsulated with thermal-conductive silicone gel. Rated IP67/IP68, they operate reliably through sudden downpours and thermal extremes without output current flickering or optical drift.

Complete In-House Manufacturing

We are a genuine factory, not a trading middleman. Located in Yueqing, Wenzhou—China’s low-voltage electrical capital—our plant houses automated surface-mount (SMT) pick-and-place lines, nitrogen-assisted reflow soldering ovens, automated optical inspection (AOI), and multi-station manual assembly cells.

100% Full-Load Aging & Screening

Every switching power supply leaving our facility undergoes automated computer-monitored burn-in testing under full load for a minimum of 4 hours at elevated chamber temperatures. We screen out infant mortality failures before goods are palletized for international transit.

Rapid OEM / ODM Turnaround

Our 5+ senior R&D engineers, each possessing over five years of SMPS circuit design experience, can alter topologies, tune feedback loops for capacitive motor loads, customize private-label silkscreens, or adjust output DC voltages (e.g., custom 36V or 60V systems) with prototype samples ready in 7 to 10 days.

Low MOQs for Prototypes & Pilot Runs

Unlike multinational conglomerates requiring thousand-unit commitments, Yueqing Keldan supports León machine builders, panel shops, and electronics distributors with initial sample orders starting from just 1 piece for standard DIN rail and enclosed units, and pilot batches starting from 10 to 50 pieces.

Streamlined Mexico Export Logistics

Our 12-member dedicated international sales team possesses extensive experience with Latin American trade. We furnish comprehensive documentation including Certificates of Origin, CE Compliance declarations, mill test reports, and customized Spanish/English labeling. Sea freight shipments clear seamlessly through the Port of Manzanillo (Colima) or Lázaro Cárdenas (Michoacán) directly into the Guanajuato interior customs terminal (Aduana Interior de Guanajuato).