Metal Battery Enclosures and Energy Storage System Cabinets

We manufacture metal battery enclosures, cabinets and modular battery racks, technical containers and BMS housings for energy storage systems and inverters. MAR-INA PRODPREST SRL delivers custom metal fabrication solutions for industrial clients, integrators, distributors and OEM projects, with fast delivery across the EU, repeatable quality, traceability and complete documentation: drawings, revisions and assembly instructions.

These products are part of our portfolio of B2B metal fabrication for series production and long-term OEM partnerships, where we work according to technical drawings, 2D/3D files, controlled tolerances and clear specifications for small, medium and large production batches.

The energy transition requires faster delivery of battery enclosures and racks

The energy transition in Europe highlights not only renewable power generation, but also energy storage. Besides cells and power electronics, the success of energy storage projects depends on metal enclosures and battery racks that protect battery modules, BMS units and electrical equipment, ensuring mechanical strength, weather protection, electrical safety and proper thermal management.

Metal enclosure for high-capacity battery modules.

This fast-growing niche gave us the opportunity to expand into the production of metal enclosures and racks for batteries. Initially, we responded to specific technical requests, and today we deliver customized solutions on a regular basis, with short lead times, according to EN/ISO requirements and with a more predictable total cost.

Modular metal rack for lithium batteries, with drawers for battery modules.

MAR-INA PRODPREST — experience, modern equipment and certifications

Without creating a separate new production line, we have naturally integrated the manufacturing of metal battery enclosures, cabinets and racks into our portfolio, relying on our experience in industrial boxes, cabinets and enclosures with stable tolerances, clean finishes and high repeatability.

Thanks to our experience in metal fabrication, metal furniture, technical cabinets and contract manufacturing, we can support series production for OEM clients and long-term B2B partnerships, including energy storage projects, photovoltaic equipment, C&I applications and industrial solutions delivered in Romania and across the European Union.

• TRUMPF technology — TruMatic 1000 fiber for laser cutting, punching and tapping, plus TruBend Center 7030 for automated bending, short series and fast design iterations.
• Laser welding & cleaning — LDW-1200-A, LDW-2000-W for clean joints on stainless steel, aluminium and steel, as well as preparation of contact areas.
• Electrostatic powder coating — correct surface preparation, controlled coating thickness and weather resistance.
• Processes & team — engineers, CNC operators and qualified welders; material traceability and end-to-end process control.
• Certifications — ISO 9001 for quality, ISO 14001 for environmental management and H&S practices in line with ISO 45001.

The result: battery enclosures and racks that combine ventilation/airflow with IP protection and electrical safety, thermal management, service access and compatibility with BMS and inverter systems.

Example enclosure for LiFePO₄ cells

Typical applications

1) Enclosures and racks for solar batteries — residential, C&I and utility-scale projects

• Configurations: single/dual-bay cabinet, modular rack for multiple battery packs, drawer-type racks for LiFePO₄ or NMC modules.
• Materials: galvanized/pickled steel + powder coating; optional stainless steel 304/316.
• Protection: IP55–IP66, IK10, grounding/PE rails.
• Thermal management: louvered grilles + filters, thermostat-controlled fans, HVAC preparation.
• Service access: 120–180° doors, concealed hinges, key/triangle locks, slides for battery module extraction.
• Cabling: M16–M40 cable glands, gland plates, DIN rails, mounting plates.
• Safety: temperature/smoke sensors, internal spraying options, markings.

2) Technical containers / outdoor cabinets

• Equipment: inverter, switchgear, DC/AC protection, telecom and monitoring systems.
• Architecture: standalone on base frame or lightweight frame-mounted containers; floor cable channels, integration of internal battery racks.
• Resistance: IP55+, double roof, powder coating with chemical pretreatment; optional anodizing/stainless steel.
• Organization: mounting plates, 19” rack, separate DC/AC cable routes, PE bars.
• Cooling: filtered fans, chimneys, HVAC units sized according to heat losses.
• Logistics: lifting points, forklift pockets, anchoring; multipoint locking systems.

3) BMS housing — enclosures for battery management systems

• Functionality: protection for PCB, sensors and relays; LV/HV separation.
• EMI/EMC: efficient grounding and shielding contacts.
• Layout: DIN rails, spacers, quick connectors, diagnostic access.
• Protection: IP54–IP55, depending on ventilation, continuous gaskets; optional polycarbonate window.
• Traceability: ID plates, QR codes, circuit colour coding.

Note: for sites with multiple batteries, we recommend modular racks + technical container for power and control equipment; separate BMS housing for fast service access.

Configuration options

• Dimensions & bays: single/dual, configurable by U/mm, racks for drawer-type modules or cabinet-type batteries.
• Materials: Z140/Z225 steel, S235, stainless steel 304/316; 0.8–1.5 mm thickness, other values on request.
• Protection: IP54–IP66, IK10; EPDM gaskets; stainless steel screws.
• Finish: polyester/epoxy-polyester powder coating; RAL colour on request; anti-corrosion treatments.
• Thermal: filtered grilles, fans, HVAC preparation.
• Cabling: cable glands, gland plates, cable passages, ferrules, labelling.
• Security: multipoint locking, door sensors, anti-burglary options.
• Documentation: 2D/3D drawings, revision control, assembly instructions, packaging.

Collaboration process for series production

1. Technical brief: application, environment, IP/IK, volume, lead time, battery type and rack type — cabinet, modular, 19” etc.
2. DFM & quotation: design optimizations for manufacturing, cost, repeatability and assembly.
3. Prototyping: fast sample or pilot series for mechanical and thermal validation.
4. Series production: manufacturing, QC, traceability, packaging and delivery.
5. After-sales: adjustments, additional batches, updated documentation and recurring deliveries.

Frequently asked questions

Can you work according to our drawings?

Yes. We accept STEP/DXF/DWG formats and provide DFM support for optimization. We can also design based on a technical brief.

Which IP ratings can you provide?

Depending on the application: from IP54 up to IP66, with internal checks and recommendations for gaskets, locking systems and ventilation.

Do you provide anti-corrosion treatments?

Yes: chemical pretreatment, powder coating suitable for the environment, stainless steel 304/316 when required; salt-spray testing on request.

Do you manufacture complete racks, not only individual enclosures?

Yes. We can deliver both stand-alone battery enclosures and complete metal racks, with drawers, sliding rails, fixing elements and customized front panels.

What are the usual lead times?

Usually 3–6 weeks, depending on complexity and volume, after drawing or prototype approval.

Do you deliver across the EU?

Yes. We deliver across the European Union, with pallet packaging, corner protection, handling instructions and complete transport documentation.

Let’s turn your specifications into a product

Send us your drawings or technical requirements for metal battery enclosures and racks, and we will respond with DFM feedback, quotation and delivery time. For recurring projects, we can support series production and long-term B2B partnerships, with phased deliveries in Romania and across the EU.