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Generators   >   Makinex Generators
 

Makinex 240 / 480V 1 & 3-Phase Generators

240 & 480 Volt, 3-Phase, Portable Generators
Makinex USA Generator Lineup

World's Smallest 3-Phase Generators
Makinex Generators - LineupMakinex USA Portable Generators — Trusted Power for Concrete & Terrazzo Pros

Powerful Portable Generators for Concrete, Terrazzo & Surface Prep
— When you’re running high-demand tools like concrete grinders, planetary polishers, dust extractors, or jobsite compressors, reliable power is essential.  Makinex USA portable gasoline generators deliver rugged, jobsite-ready performance with 240V and 480V output, engineered for concrete, terrazzo, masonry, and industrial applications.

 

Why Makinex Generators Are Preferred by Concrete Pros

 

Solution Portable & Compact Design
Makinex generators are one-third the size and weight than a comparable tow-behind or skid-generator, making them easy to transport in your equipment trailer or truck;  and to walk through standard doorways for easy positioning onsite. 

Solution Dual-Phase & Three-Phase Power
Run single-phase tools (120V/240V) and three-phase equipment (480V) from one unit — ideal for grinders, vacs, and high-power accessories.

Solution Durable Construction
Heavy-duty frames and quality engines (e.g., Vanguard EFI) deliver long service life under harsh jobsite conditions.

Solution Reliable Fuel Efficiency
Fuel-efficient designs mean longer run times between refueling and less downtime — critical during multi-hour grinding or polishing operations.

Solution True Onsite Power
Avoid all the hassle of a cumbersome tow-behind generator parked at the curb.  Power is conveniently placed right where it is needed, and the hazard or power loss due to long cables is eliminated. 

See below for additional product information, features and benefits.

 
Which generator is best for you?

Compare models to match your equipment load and production needs.
 

POWER
GENERATORS
Compact, portable, 3-phase power

 Makinex #GEN-23P-MS-240: 23kw, 240v Single & Three-Phase Generator Makinex #GEN-23P-MS-480: 23kw, 480v Single & Three-Phase Generator Makinex #GEN-32P-US-V2: 32kw, 480v Single & Three-Phase Generator
Model No GEN-23P-MS-240 GEN-23P-MS-480 GEN-32P-US-480

JOBSITE
CHALLENGES
Challenge Heavy-duty 240 & 480v machines 
Challenge Access to 3-phase power - towing a generator to site or having it delivered is inconvenient and expensive
Challenge 5% loss in voltage every 100ft of cable
Challenge Quality Power - Dirty vs Clean:  Getting clean 30A 480V power close to the work area

 

MAKINEX
SOLUTIONS
Solution The most light,  compact and portable 240 & 480v 3-phase generators:
>  large wheels
>  transports by a trailer or in the bed of a pickup truck
Solution Independent power to operate 1 & 3-phase equipment at the same time.
Solution 1 & 3-phase outlets
Solution Backed by 3 year warranty.
Solution Exceptionally clean, consistent power.
OVERVIEW

240V Dual-Phase 24kW Portable Generator

Delivers reliable, high-output portable power for concrete grinders, polishers, dust extractors, and jobsite tools requiring 240V performance.

480V High-Output 23kW Professional Generator

Built for contractors running high-demand three-phase equipment such as large planetary grinders, industrial dust collectors, and heavy surface prep machinery.

240/480 Heavy-Duty 32kW Jobsite Power Solution

Ultimate portable power source for contractors running multiple high-draw machines or large industrial grinders simultaneously.

Rugged steel frame and commercial-grade gasoline engine, this generator is engineered for daily professional use in demanding environments.

 Delivering powerful 480V output in a compact portable footprint, this generator eliminates the need for utility hookups or oversized tow-behind units. Massive 32kW output and 480V three-phase capability, this generator delivers dependable performance for long production days on major concrete and terrazzo projects.

Dual-phase output allows contractors to power both 120V and 240V equipment from one compact unit — making it ideal for mobile grinding crews and restoration projects without access to site power.

 Provides stable voltage under continuous load — keeping productivity high and equipment protected. Built to withstand harsh jobsite conditions, it provides exceptional runtime, voltage stability, and durability.  

KEY BENEFITS:
>  Consistent 240V power for concrete and terrazzo equipment
>  Compact, portable design for easy transport
>  Heavy-duty construction for jobsite durability
>  Ideal for grinders, vacuums, saws, and polishers.

 KEY BENEFITS:
>  480V three-phase power for professional grinding systems
>  Designed for continuous high-load operation
> Portable frame for flexible jobsite placement
>  Perfect for large grinders and high-CFM vacuums.		 KEY BENEFITS:
>  High-capacity 32kW output for demanding equipment
>  480V three-phase power for industrial tools
>  Supports multiple machines at once
>  Rugged frame built for professional construction sites.

BEST FOR:
Small to mid-size concrete grinding, surface prep, and polishing operations.

 BEST FOR:  High-production concrete grinding, terrazzo polishing, and industrial surface preparation. BEST FOR:  Large-scale grinding projects, commercial terrazzo work, and multi-tool operations.
Voltage 120V Single-Phase
240V Three-Phase		 120V Single-Phase
480V Three-Phase		 120/240V 1-Phase
480V 3-Phase
Max AC Output 24,100 Watts 24,100 Watts 30,000 watts
Rated AC Output 23,000 Watts 23,000 Watts 25,000 Watts
Max Amps 1-Phase 30A @ 120V 30A @ 120V 30A @ 240V
Max Amps 3-Phase 50A @ 240V 50A @ 240V 50A @ 480V
Weight 573 lbs. 573 lbs. 772 lbs.
Receptacles Brochure

Specifications		 Brochure

Specifications		 Brochure

Specifications
Noise Level 50% Load - 80dB 50% Load - 80dB 50% Load:  72-76dB
Engine Type Twin Cylinder Air Cooled Gasoline Twin Cylinder Air Cooled Gasoline Twin Cylinder Air Cooled Gasoline
Engine Model Vanguard 61G277 - 40HP EFI Vanguard 61G277 - 40HP EFI Honda GX690 X 2
Starting System Electric Key Electric Key Electric Key
Engine Displacement 993cc 993cc 1,376cc
Fuel Economy
Tank Size		 1.5 gal @ 50% Load
13.2 Gal		 1.5 gal @ 50% Load
13.2 Gal		 2.6 gal @ 50% Load
13.2 Gal
Dimensions 43"(l) x 25"(w) x 40"(h) 43"(l) x 25"(w) x 40"(h) 43"(l) x 25"(w) x 40"(h)
Warranty 3 Yr 3 Yr 3 Yr
Price $19,997.00
 $19,997.00
 $23,997.00

 

 

 

Additional Features & Benefits
--- Makinex Portable Generators

  • ADVANCED ALTERNATOR TECHNOLOGY - Makinex generators use permanent-magnet brushless alternators and have totally independent circuits for 120V and 480V.  This guarantees clean 480V three-phase power that is completely unaffected by the load on the 120V circuit during simultaneous 120V/480V operation.

  • These advanced alternator features yield 15% more power from the same engine then what is possible with conventional copper-wound alternators while requiring fewer electronic components.  This makes for less wear and tear and a longer lifespan.

  • INDUSTRY STANDARD OUTLETS - Equipped with 50A, 30A, and 20A outlets, to power multiple pieces of single-phase and 480V three-phase equipment at the same time with no requirement for voltage selection.  Just plug equipment into the right outlet and power it up!
  • Powered by the Briggs & Stratton VANGUARD™ V-Twin OHV horizontal engine (Honda GX690 X 2, on the 32kW), you can be sure of great fuel economy, low emissions, and a perfectly balanced engine with low vibrations.

TOP REASONS FOR CHOOSING MAKINEX GENERATORS

  • All Makinex generators are designed and built to endure the rigors of the construction market.
  • Advanced alternator tech saves 15% fuel versus similar generators using the same engine.
  • Makinex stands behind its products with technical support, servicing, and spares.
  • Designed for maximum convenience and ease for concrete, masonry, and flooring pros.

CLEAN GENERATED POWER

Makinex - Clean Generator PowerWhy Quality Power Matters for Concrete Cutting, Grinding, Coring, and Sawing Equipment?
Power quality is critical to maintaining performance and protecting your equipment.  Poor-quality power—defined by harmonic distortion, voltage variations, and unstable sine waves—can lead to inefficiencies, safety risks, and costly equipment repairs and even replacement.

Power Quality:  Dirty vs. Clean Power
Generators differ from utility grids by providing "soft" power with higher impedance and lower stability, making them more sensitive to load changes.

Nonlinear loads like Variable Frequency Drives (VFDs), often used in construction tools, can introduce harmonics—distortions in the sine wave caused by power conversion.  These harmonics, if excessive, result in "dirty power," leading to overheating, equipment malfunction, uneven cuts or inconsistent grinding and flat-topping voltage peaks, which hinder tool performance.

Dirty power doesn't just compromise performance—it also poses significant safety risks.  Sudden voltage drops or spikes caused by harmonic distortion or sine wave instability can result in unexpected equipment malfunctions.  These unpredictable failures increase the likelihood of unsafe situations for operators.

Why THD and Sine Waves Matter
THD (Total Harmonic Distortion) measures power quality, with values under 5% considered acceptable for most tools.  Generators with high THD struggle with VFDs, increasing the risk of disruptions, overheating, and long-term wear.  Sine wave distortion further impacts voltage and frequency stability, causing dips or surges that modern electronics are particularly sensitive to.

Makinex Generators:  The Ideal Choice
Makinex generators maintain less than 3% THD, ensuring exceptionally clean power that is perfect for high-frequency applications like concrete cutting.  Their advanced alternators deliver stable sine waves, minimizing the effects of harmonic distortion and supporting precise, efficient tool operation.

By providing clean, consistent power, Makinex generators help avoid frequent power interruptions or inconsistencies that lead to stoppages on the jobsite.  This means less downtime, smoother workflows, and fewer risks of costly rework—making inefficiencies extinct.

 

 

USA Dust Guard
  Div. of Scott Electric
--- Trusted Since 1946!
24 39th Street
(Lawrenceville, Strip District)
Pittsburgh, PA  15201

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