High-Pressure Die Casting
Aluminum & zinc for enclosures, heat sinks, bus bar ducts, and thermal hardware.
Aging infrastructure, data-center demand, and renewable integration are driving an unprecedented wave of new transformers, switchgear, and grid-scale storage — with transformer lead times now stretching two to four years.
MES delivers the mechanical backbone OEMs need: the enclosures, structural castings, bus housings, cooling hardware, and connectors their equipment is built on. From Columbus, Ohio and Saltillo, Mexico to a network of 3,000+ audited suppliers, we’re a single, certified partner for the components that matter.
40M US distribution units beyond useful life; avg US transformer is 33+ years old
Data centers will drive 465 TWh of demand growth over 5 years (~9% of total)
Accounts for ~25% of projected demand growth; requires distribution grid upgrades at scale
Variable solar/wind requires sophisticated transformers, reactive power equipment, and grid-scale storage
Aging grid identified as national security risk; driving hardened equipment specs and BABA compliance
MES produces manufacturable components across three of the fastest-growing grid equipment categories — using high-pressure die casting (HPDC) in aluminum and zinc, precision CNC machining, aluminum extrusion, and global sourcing.
We support oil-filled distribution transformers (pad-mount and pole-mount), power transformers up to 765kV, and dry-type enclosure assemblies. MES manufactures the cast and machined mechanical components — and sources the rest through our global network — so transformer OEMs can consolidate suppliers and protect against today’s capacity-constrained lead times.
| Component | Process | Application |
|---|---|---|
| Tank body & cover plates | Cast + CNC machined | Main enclosure, flanges, ports, cover seals |
| Conservator tank | Die-cast + welded aluminum | Oil expansion reservoir housing |
| Cooling radiator fins | Extruded + machined aluminum | Welded fin arrays, thermal management |
| Terminal connectors & lugs | HPDC aluminum + CNC | HV/LV cable terminations |
| Mounting brackets & pads | Cast + CNC machined | Base pads, lifting eyes, ground bus brackets |
| Oil drain valves & fittings | CNC machined | Drain valves, sampling ports, relief plugs |
| Tap changer (OLTC) enclosure | Cast + machined | Outer housing, mounting flanges, seals |
| Pressure relief device body | CNC machined | Housing (mechanism OEM-sourced) |
| Bushing flanges & hardware | Global sourcing (India network) | Mounting hardware, gaskets |
MES manufactures structural and enclosure components for metal-clad (5kV–38kV), metal-enclosed, and gas-insulated switchgear. We deliver the cast, machined, and fabricated hardware that houses and protects the electrical assembly — letting switchgear OEMs offload mechanical content to a single, quality-certified supply partner.
| Component | Process | Application |
|---|---|---|
| Enclosure frames & panels | Cast + CNC machined | Side, rear & front panel frames, gussets |
| Bus bar housing / duct | HPDC aluminum + machined | Bus compartment enclosure & phase barriers |
| Cable gland plates | CNC-machined aluminum | Bottom-entry plates, cable sealing |
| Top gland / bushing plate | CNC machined | Cable entry, bushing mounting |
| Drawout breaker cradle rails | CNC-machined rails & frame | Truck guides, racking mechanism housing |
| Relay & control enclosure | Sheet metal + CNC machined | Protection relay housing, DIN rail brackets |
| Instrument & meter panels | CNC machined + formed | Gauge cutouts, panel frames, bezels |
| Ventilation louvers | HPDC / stamped + machined | Airflow management panels, grilles |
| Base frame / skid | Cast + extruded structural | Equipment mounting base, leveling pads |
| Fuse holder bodies | Global sourcing (India network) | HRC fuse carrier housings |
BESS is the fastest-growing segment of the grid, and its mechanical infrastructure is often overlooked. MES manufactures the enclosures, structural castings, and thermal-management hardware that utility-scale storage systems (1MWh to 100MWh+) are built on. Aluminum HPDC is ideal for these thermal-critical applications — high conductivity, complex geometry, and production at scale.
| Component | Process | Application |
|---|---|---|
| Container enclosure body | Cast + extruded + CNC | Outer shell, access panels, doors |
| ISO corner castings | HPDC aluminum/zinc (ISO 1161) | Structural corner fittings, stack & lift points |
| Cooling floor manifold | HPDC aluminum + CNC | Liquid cooling distribution plates & headers |
| Battery rack structure | Cast + extruded aluminum | Module rails, uprights, locking frames |
| Thermal / HVAC enclosure | Cast + CNC machined | Cooling unit housing, fan shrouds, ducts |
| Cooling pipe & headers | Extruded + CNC machined | Glycol manifolds, quick connects |
| PCS / inverter enclosure | Sheet + HPDC + CNC | Inverter housing, heat-sink castings, frames |
| Base frame / skid | Cast + structural extrusion | Ground mount, leveling feet, grounding |
| BMS control housing | CNC + global sourcing | Controller enclosure, DIN rail frame |
| Outdoor disconnect housing | Global sourcing (MeshWorks) | Weatherproof disconnect switch enclosure |
MES delivers a complete portfolio of metal-forming processes for the electrical and energy industries — source structural, thermal, and enclosure components from a single, quality-certified partner.
Aluminum & zinc for enclosures, heat sinks, bus bar ducts, and thermal hardware.
Precision flanges, gland plates, breaker cradle rails, and connectors to tight tolerances.
Cooling fin arrays, structural rails, and battery rack framing in custom profiles.
Complex, high-precision conductive and structural parts with minimal post-machining.
High-strength components for high-load electrical applications and critical hardware.
We match material to application — balancing conductivity, thermal performance, weight, and corrosion resistance for demanding grid environments.
Ideal for enclosures, heat sinks, cooling manifolds, and bus housings.
Perfect for intricate corner castings, meter enclosures, and complex forms.
For connectors, lugs, and bus bar applications where conductivity is critical.
Durable and reliable for demanding grid energy environments.
Component manufacturing is only half the equation. MES wraps every program in a full solution — engineered to keep your production line running even when the market tightens.
Access a curated network of 3,000+ audited suppliers through MeshWorks for the right process at the right cost.
Columbus, OH + Saltillo, MX — lower logistics cost and shorter lead times, closer to your operations.
Supplier consolidation, inventory programs, and JIT delivery so production never stops.
Design-for-manufacturability support to optimize part cost and performance before tooling.
MES manufactures transformer tank bodies and covers, conservator tanks, cooling radiator fins, terminal connectors and lugs, mounting brackets, oil drain valves and fittings, and tap changer enclosures using HPDC aluminum casting, CNC machining, and extrusion. Core laminations, windings, and bushings are sourced or supplied by specialty OEMs.
Yes. MES manufactures enclosure frames and panels, bus bar housings and ducts, cable gland plates, drawout breaker cradle rails, relay and control enclosures, and ventilation louvers for metal-clad (5kV–38kV), metal-enclosed, and gas-insulated switchgear.
MES produces BESS container enclosures, ISO corner castings, liquid cooling manifolds, battery rack structures, thermal/HVAC enclosures, inverter (PCS) housings, and base frames for utility-scale systems from 1MWh to 100MWh+. Battery cells and fire-suppression systems are outside MES scope.
Aluminum high-pressure die casting offers high thermal conductivity, lightweight strength, corrosion resistance, and EMI shielding, with the ability to cast complex geometry and integrated mounting features — making it ideal for enclosures, heat sinks, and cooling manifolds.
With large-transformer lead times running two to four years, MES provides a global sourcing alternative through a network of 3,000+ audited suppliers, plus domestic and nearshore manufacturing in Ohio and Mexico, to shorten lead times and add supply chain resiliency.
MES is headquartered in Columbus, Ohio with nearshore manufacturing in Saltillo, Mexico, supporting Buy American (BABA) preferences and domestic-content requirements. MES is also ISO 9001:2015 certified and a certified minority-owned business (NMSDC).
Extrusion is ideal for straight-profile heat sinks with efficient thermal performance, while die casting supports intricate designs and integrated mounting features. MES offers both.
Aluminum, zinc, copper, and brass are widely used for their conductivity, thermal performance, corrosion resistance, and structural durability across transformers, switchgear, and energy storage systems.
Whether you're scaling transformer production, sourcing switchgear enclosures, or defining a new BESS supply chain — MES delivers the precision components and supply chain resilience to get you there faster.
How do we deliver success-minded performance brands value-add that's worthy? With a global strategy, boots-on-the-ground presence, and relationship-driven approach.