CAT CLASS: HQ-10732

7-12 kW Portable Generator

Q: What size welder can this generator class support?

Most 7-12 kW generators handle MIG welders up to 180-200A or stick welders to 225A, provided minimal concurrent loads. Welders with high inrush demand may require units at the upper end of the range or dedicated welding generators.

Q: How does this compare to inverter generators in the same power range?

Traditional open-frame generators in this class prioritize durability and continuous heavy loads, while inverter models offer quieter operation and cleaner power for sensitive electronics but typically at higher cost and with duty-cycle limitations under sustained peak loads.

Q: Can this size run a small job trailer with HVAC?

Starting loads for small rooftop air conditioners (10,000-13,500 BTU) often exceed the surge capacity of this class. Trailers with mini-split systems or resistance heating are more compatible; units with soft-start HVAC may operate on the upper end of the 7-12 kW range.

The 7-12 kW portable generator class serves as the mid-range workhorse for jobsites requiring simultaneous operation of multiple tools, small welding equipment, or trailer-mounted lighting systems. This size class sits between the 3-7 kW band (designed for one or two tools) and the 12+ kW band (full crew or heavy equipment support). Typical units deliver 9.4-13.0 kVA and represent the practical upper limit for single-operator portability before transitioning to trailer-mounted or towable models.

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Modèles

Marques

Cat classes

Choisissez une classe de taille : la capacité et la portée varient selon la gamme.

Spécifications clés

Spécification	Plage typique	Signification
Power Output	9-13 kVA	Sufficient for multiple corded tools, small MIG welders up to 200A, or basic light tower operation.
Engine Size	Single-cylinder gasoline or diesel	Air-cooled engines in this class balance fuel efficiency with extended-duty runtime requirements.
Outlets	120/240V twist-lock and standard receptacles	Dual-voltage capability supports both 120V hand tools and 240V equipment without adapters.
Weight	200–350 lb (90.7–159 kg)	Requires two operators for manual handling or mechanical lift assistance for bed loading.

Comment choisir

This size class is appropriate when the jobsite demands operation of three to five corded tools concurrently, a small welder with minimal additional loads, or a single light plant with auxiliary circuits. The 3-7 kW Portable Generator remains more practical for single-tool applications or sequential use of equipment, offering easier transport and lower fuel consumption. For full crew power requirements, continuous heavy tool loads (large chop saws, concrete vibrators, multiple welders), or backup power spanning entire small structures, the 12+ kW Portable Generator provides the necessary overhead and sustained capacity.

Ce que cette taille peut gérer

Small masonry crew running a mixer, grinder, and corded saw simultaneously
Remote welding setup with a 180A MIG welder and auxiliary lighting
Roadside or parking lot work requiring a compact light tower and hand tools
Landscaping or irrigation install with pump, compressor, and power auger
Emergency restoration work powering fans, dehumidifiers, and portable lighting
Event or construction trailer supplying power for offices and charging stations

Sécurité et opération

Carbon monoxide hazards require outdoor placement with minimum 20-foot clearance from occupied structures and air intakes
Ground-fault protection and proper grounding to building or equipment frames mandatory for personnel safety
Load management prevents overload conditions; combined tool amperage must remain within generator's continuous rating
Enclosed or shielded exhaust systems reduce burn risk; muffler temperatures exceed 400°F during operation

Transport et logistique

Manual loading by two operators into pickup beds or van cargo areas; wheel kits and handles standard on most models
Light-duty utility trailers (single-axle, <1,000 lb capacity) accommodate transport without dedicated towing equipment
Forklift or liftgate loading preferred for frequent moves to minimize manual handling strain

Alimentation

Gasoline models consume 0.8-1.2 gallons per hour at 50% load; 6-12 gallon fuel tanks provide 6-12 hours of runtime before refueling
Diesel variants offer improved fuel economy and longevity for extended-duration or multi-day projects
Requires periodic refueling on site; extended runtimes typically necessitate staged fuel supply or auxiliary tanks

Questions fréquentes

What size welder can this generator class support?

Most 7-12 kW generators handle MIG welders up to 180-200A or stick welders to 225A, provided minimal concurrent loads. Welders with high inrush demand may require units at the upper end of the range or dedicated welding generators.

How does this compare to inverter generators in the same power range?

Traditional open-frame generators in this class prioritize durability and continuous heavy loads, while inverter models offer quieter operation and cleaner power for sensitive electronics but typically at higher cost and with duty-cycle limitations under sustained peak loads.

Can this size run a small job trailer with HVAC?

Starting loads for small rooftop air conditioners (10,000-13,500 BTU) often exceed the surge capacity of this class. Trailers with mini-split systems or resistance heating are more compatible; units with soft-start HVAC may operate on the upper end of the 7-12 kW range.

Comparer les modèles populaires

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