The Electro-Hydraulic Power Matrix.

Unifying Global Transformation, Digital Phase Conversion, and Precision Mechanical Force.

3ph Rotary Converter Experts - Kay Industries

Office

207 E Market St. Nappanee, IN M-F : 9AM – 6PM EST
(574) 236-6220

Parts & Warranty

7834 Queen Road. Plymouth, IN (574) 780-7464
support@kayind.com

Warehouse

259 N Van Buren St. Monroe, IN M-F : 9AM – 3PM EST
(463) 255-7341

Electric Vehicle (EV) Infrastructure Solutions
Kay Industries, Hawk Transformer, and AMG Bolting Solutions provide an integrated, end-to-end industrial ecosystem that allows EV charging manufacturers, corridor installers, and commercial fleet operators to deploy robust charging networks anywhere—regardless of local grid limitations.
By unifying advanced phase conversion, heavy-duty voltage transformation, and critical structural bolting integrity, our products eliminate utility delays, step up power capacity, and secure high-output public charging installations for long-term operational uptime.

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Electric Vehicle (EV) Infrastructure Solutions
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Office: 207 E Market St., Nappanee, IN 46550

Plant: 7834 Queen Road, Plymouth, IN 46563

support@kayind.com

(574) 236-6220

Mon – Fri 8am – 6pm EST

Saturday 9am-12pm EST

Sunday CLOSED

Delivery / Warehouse Dock Hours

Mon-Thurs 7:30am – 3:30pm

Commercial DC Fast Chargers (DCFC) natively require 3-phase power. If you are installing them in locations limited to single-phase utility lines (such as rural areas or remote highway corridors), you will need a phase converter from a company like Kay Industries. [1]
The primary equipment configurations and specific chargers that operate on 3-phase and utilize Kay Industries phase conversion or transformer systems include: [1, 3]
Commercial DC Fast Chargers (Level 3)
These high-capacity systems require 3-phase input (typically 480V) to convert AC to high-voltage DC for rapid vehicle charging: [1, 2, 3, 4, 5]
  • Tesla Superchargers / Commercial Fast Chargers: Native 3-phase equipment that requires external conversion when deployed at remote or single-phase fleet yards.
  • ABB E-mobility Terra Series: Modular, high-power DCFC hardware that relies heavily on stable 3-phase electrical infrastructure.
  • ChargePoint Express Series (e.g., Express 250): Standard high-output public highway chargers.
  • Delta DC Fast Chargers: Industrial-grade units commonly used for commercial transit and fleet operations.
  • Autel MaxiCharger DC Fast: Emerging high-capacity chargers deployed at commercial sites.
  • Wallbox Supernova: Public and fleet-focused modular DC fast chargers. [1, 3, 4, 5]

3-Phase Experts Since 1960

Electric Vehicle (EV) Infrastructure Solutions
Kay Industries, Hawk Transformer, and AMG Bolting Solutions provide an integrated, end-to-end industrial ecosystem that allows EV charging manufacturers, corridor installers, and commercial fleet operators to deploy robust charging networks anywhere—regardless of local grid limitations.By unifying advanced phase conversion, heavy-duty voltage transformation, and critical structural bolting integrity, our products eliminate utility delays, step up power capacity, and secure high-output public charging installations for long-term operational uptime.
Core Solution Areas
1. Overcoming the Single-Phase Grid Obstacle
Commercial Direct Current Fast Chargers (DCFC) require a three-phase power feed to perform high-speed recharges. However, remote highway corridors, rural logistics hubs, and suburban fleet yards are frequently restricted to single-phase utility grids.
  • The Technology: Kay Industries Phase Converters bridge this structural grid gap. Our legacy Phasemaster® Rotary Phase Converters and advanced E-Phase All-Electronic Digital Phase Converters synthesize clean, balanced 3-phase power directly from a local single-phase connection.
  • The Advantage: Station developers can install native 3-phase hardware immediately, bypassing costly 6-to-18-month utility line extensions while maintaining an ultra-stable 2% voltage balance.
2. High-Capacity Distribution & Voltage Transformation
Even when 3-phase lines are present, high-output DC fast charging configurations (ranging from 150 kW to 350 kW+) frequently demand customized, industrial-grade voltage adaptation to safely interface with local utility drops.
  • The Technology: Hawk Transformer delivers customized, heavy-duty distribution transformers, isolation transformers, and step-up/step-down units engineered explicitly for high-duty-cycle EV infrastructure.
  • The Advantage: Hawk hardware optimizes site power distribution, buffers local equipment against line sags, provides crucial galvanic isolation to mitigate electrical noise, and steps utility lines up to the exact 480V parameters demanded by modern charging networks.
3. Structural Integrity & Foundation Bolting Precision
Heavy public charging equipment, canopy structures, overhead bus pantographs, and large pad-mounted industrial transformer enclosures must withstand continuous outdoor exposure, high physical vibration, and intense wind loads.
  • The Technology: AMG Bolting Solutions delivers high-precision hydraulic torque wrenches, pneumatic bolting tools, and digital calibration equipment required to secure heavy electrical structural infrastructure.
  • The Advantage: Using AMG industrial tensioning systems guarantees that anchor bolts on concrete pads, transformer housings, and structural fast-charger pylons are torquetightened to precise, verified specifications, eliminating mechanical shifting or structural failure risks.

One-Stop Solutions for EV

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Bypass Single-Phase Limits Instantly: Deploy native 3-phase DC fast chargers immediately using Kay Industries Phase Converters, eliminating 12-month utility upgrade delays

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Optimize Voltage & Safe Isolation: Step grid currents smoothly up to 480V while filtering out disruptive harmonic noise with custom Hawk Transformer units.

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Secure High-Vibration Foundations: Lock down heavy charger pylons, outdoor structures, and pad housings flawlessly using high-precision AMG Bolting Solutions torque tools.

The Grid Shouldn’t Dictate Your Infrastructure. We Build the Foundation.
“When local grid limits, voltage mismatches, or structural installation challenges threaten to stall your high-output EV charging deployment, our unified technology ecosystem delivers the answer. By combining Kay Industries’ advanced phase conversion, Hawk Transformer’s heavy-duty power distribution, and AMG Bolting Solutions’ structural integrity tools, we provide charging manufacturers and fleet operators with the exact engineering foundation required to deploy high-speed charging assets anywhere—safely, cost-effectively, and without utility delays.”
Joint Capabilities Matrix: Unified Site Architecture
When deploying an EV charging hub or fleet maintenance depot, our combined product lines streamline every physical stage of construction:

Infrastructure Challenge Component Provider Equipment Application
No 3-Phase Grid Access Kay Industries Converts single-phase utility lines to clean, balanced 3-phase power on-site.
Voltage Mismatch Hawk Transformer Steps voltage levels up or down to match site requirements (e.g., 240V to 480V).
Electrical Safety / Noise Hawk Transformer Implements heavy-duty isolation transformers to dampen harmonic distortion.
Pad Structural Security AMG Bolting Solutions Tightens structural anchor bolts on high-capacity charger pylons and pad housings.
High Vibration / Fatigue AMG Bolting Solutions Delivers precise, documented torque parameters to prevent joint loosening over time.


Target Applications Covered
  • Commercial Fleet & Logistics Depots: Empowering delivery vans, corporate freight trucks, and industrial fleet hubs to build fast-charging depots on rural distribution grids.
  • Electric School Bus Infrastructure: Allowing consolidated and rural school districts to utilize EPA funding and deploy 3-phase depot hubs over existing single-phase school garage lines.
  • Highway & Rural Corridor Stations: Helping network developers bridge geographic charging dead zones by activating fast-charging plazas along remote transit links.

Partner With Us to Scale Your Infrastructure
Don’t let grid limitations, power adaptation problems, or structural installation risks slow down your deployment timeline. Our engineering teams work in tandem to customize a complete power and structural package tailored to your exact site specifications.
Contact Our Joint EV Infrastructure Engineering Team Today for a full site assessment, power load analysis, and hardware specification review.
“Connecting to the utility connection, which is in the road or in the street… is basically a 12- to 18-month process. It’s a huge time barrier, and it’s a huge cost barrier.” [1]
Tiya Gordon, Co-Founder of It’s Electric (via the World Economic Forum) [1]

We have addressed the critical power needs of high-speed EV chargers a lot, however, if you are in need of three-phase power for your remote corridor station, fleet yard depot, or localized grid hookup, remember Kay Industries is the ‘World’s 3-Phase Experts since 1972’, and the Phasemaster® brand has existed since 1960. Whether you are electrifying a heavy-duty commercial vehicle fleet or upgrading local roadside infrastructure, we are here to help and serve you.

Our Pricings:
No 3-Phase? No Problem!
“When single-phase grid restrictions, voltage mismatches, or structural installation challenges threaten to stall your EV charging network, our unified technology ecosystem delivers the answer. By combining Kay Industries’ advanced phase conversion, Hawk Transformer’s heavy-duty power distribution, and AMG Bolting Solutions’ structural integrity tools, we provide charging manufacturers, installers, and fleet operators with the exact engineering foundation required to deploy high-speed charging assets anywhere—safely, cost-effectively, and without 12-to-18-month utility delays.
We have addressed the critical power needs of high-speed EV chargers a lot, however, you never pay for sizing help when designing your charging station infrastructure. You buy phase converters, transformer equipment, phase converter components and parts, and rotary converter repair services ($175 per hour + parts) from us. The phase converter knowledge—that’s what we at Kay Industries do for fun. Whether you are electrifying a heavy-duty commercial vehicle fleet or upgrading local roadside infrastructure, we are here to help and serve you.

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