Tested for extreme thermal cycles (-40°C to +85°C), high altitude operations, and maximum magnetic flux resilience across industrial automation grids.
Designed for harsh industrial automation cabinets, integrating custom low-leakage high-frequency ferrite core topologies that deliver stable output under fluctuating input voltages.
Precision flyback transformer design utilizing low core-loss EE-25 ferrite materials to achieve exceptional electromagnetic compatibility and low thermal emissions in enclosed enclosures.
Engineered for cold-climate battery charging and uninterruptible remote systems, built with gapped ferrite inductors to prevent magnetic saturation during peak surge currents.
Heavy-duty industrial power supply driven by high-flux PQ-type planar ferrite transformers, maximizing cross-sectional power throughput while reducing parasitic winding capacitance.
Integrated with high-permeability NiZn ferrite bead filters on the DC cable, providing ultra-clean ripple-free output for telemetry, sensing equipment, and embedded field controllers.
Configurable variable DC power stages equipped with custom toroidal and low-loss pot-core magnetics, delivering constant power curves required for variable-frequency mining instrumentation.
Heavy-wattage SMPS engineered with ultra-high frequency EE-42 ferrite magnetic cores and resonant LLC circuits, offering ultra-low power conversion dissipation up to 93% efficiency.
Space-saving step-shape DIN-rail unit utilizing high-density planar EFD ferrite cores to satisfy Class II isolation without earth grounding, ideal for distributed mining telemetry.
Mongolia presents one of the most demanding operational environments in the world for electromagnetic power components and soft ferrite cores. From the extreme continental climate spanning the South Gobi mining corridors (such as Oyu Tolgoi and Tavan Tolgoi) to the high-density municipal grids of Ulaanbaatar, power electronics face thermal swings stretching from -45°C during harsh winter months to +40°C in high summer. For magnetic components, conventional off-the-shelf ferrite cores face severe micro-cracking, sudden Curie temperature shifts, and core loss escalations under such rapid thermal hysteresis cycles.
Shaanxi Zelqo Power Co., Ltd. specifically formulates custom OEM Manganese-Zinc (MnZn) and Nickel-Zinc (NiZn) ferrite core geometries tailored to withstand severe mechanical vibration, high elevation air thinning (which reduces convective cooling capacity), and transient over-voltages generated by localized generator networks. By controlling grain boundary dopants and sintering curves, our custom ferrite cores retain an exceptionally high saturation flux density (Bs > 510 mT at 25°C and > 410 mT at 100°C), preventing core saturation and catastrophic MOSFET breakdown in heavy mining switchgear and remote off-grid solar-diesel hybrid systems.
Tailored OEM/ODM magnetics providing structural resistance against airborne coal dust, moisture freezing, and unstable utility grids.
In the open-pit and underground mines across Erdenet and South Gobi, continuous vibration, mechanical shock, and pervasive conductive dust can destroy standard inductors and SMPS units.
Mongolia's expansive steppes host vast wind and solar projects requiring specialized step-up inverter magnetics that operate smoothly across low daylight and intense UV conditions.
Ulaanbaatar’s massive urban heating grid depends on hundreds of automated heat distribution substations where line-noise and electromagnetic interference (EMI) run rampantly.
As Mongolia advances its "Vision 2050" long-term development policy and accelerates the modernization of its energy transmission corridors, procurement managers are moving away from unbranded, non-standard electronic parts. The historic reliance on generic imported power blocks resulted in frequent winter breakdowns, high maintenance overheads, and system down-times in mission-critical mining installations. Today, the Mongolian procurement landscape demands:
1. Strict Traceability & Material Certification: Direct OEM partnerships with verified manufacturers capable of supplying verified raw-material traceability (RoHS, REACH) and batch-specific LCR/Hi-Pot testing certificates.
2. Custom Dimensional Integration: Retrofit projects in legacy Russian-standard infrastructure require non-standard core geometries and custom bobbin pin layouts to match existing chassis mounts without extensive metalwork retooling.
3. Shift Toward Distributed High-Efficiency SMPS: High energy tariffs and remote off-grid fuel logistics have driven Mongolian engineers toward 92%+ efficient switching mode power supplies, demanding low-loss gapped ferrite cores that maintain stable magnetic characteristics across broad temperature curves.
An Intertek-verified production facility located in Xi'an, providing direct-to-Mongolia logistics and world-class magnetic engineering depth.
Shaanxi Zelqo Power Co., Ltd. operates with verified production capacity. Rather than an intermediary trading house, our on-site assembly lines, winding equipment, and QC testing stations are inspected and verified by global registrar Intertek, ensuring transparency in every purchase contract.
Our engineering division calculates optimal core parameters, wire gauges (including triple-insulated wire and copper foil windings), turns ratio, and magnetic leakage inductance using finite element electromagnetic modeling. We do not re-label catalog parts; we engineer the circuit around your specific mechanical and electrical envelope.
Every magnetic assembly undergoes rigorous multi-station validation: incoming raw material verification, CNC precision coil winding, circular toroidal winding, automated tape wrapping, vacuum varnish/potting, semi-finished testing, full-load burn-in aging, and final hi-pot dielectric breakdown inspection.
Situated in Xi'an—the primary hub of the China-Europe and China-Central Asia railway network—Zelqo Power provides streamlined, expedited container rail and cross-border trucking logistics through Erenhot to Ulaanbaatar, cutting lead times down to a fraction of coastal suppliers.
Addressing the technical, regulatory, and logistical realities of importing custom ferrite cores and switching power equipment into Mongolia.