What is RoXteel Industrial?

RoXteel Industrial manufactures standardized modular plenum systems and value engineered large industrial steel assemblies for mission critical infrastructure projects nationwide.

RoXteel modular generator plenum towers installed on a rooftop

Patent Pending, USA & International

Modular Generator Plenum Systems

A standardized, divorced, self supported generator plenum system for mission critical standby power. Compatible with most MW class gensets and engineered for fast, predictable site erection.

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20 FT

Standard modular sections

10×

Faster erection

60 FT

Stacked plenum towers

Up to

100 FT

With engineered straddle configurations

20 FT

Standard modular sections

10×

Faster erection

60 FT

Stacked plenum towers

100 FT

With engineered straddle configurations

Patent Pending, USA & International

Standardized. Self Supported. Built for Mission Critical Power.

The RoXteel Modular Plenum System is a standardized, self supported generator discharge system built in repeatable 20 foot modules for mission critical projects. Divorced from the genset enclosure and compatible with most MW class gensets, the core system remains consistent while project specific interface details are addressed where required.

Designed as infrastructure, not an afterthought. The system manages radiator discharge while providing the structural support, repeatability, and site predictability required for mission critical standby power.

RoXteel modular plenum towers assembled on site with a crane

20 FT MODULAR SECTIONS

Standardized for repeatable deployment.

SELF SUPPORTED

Divorced from the genset enclosure.

REPEATABLE

Designed across projects, sites, and genset brands.

PREDICTABLE ERECTION

Built for fast, controlled site assembly.

One System. One Defined Scope.

The System

Standardized 20 foot plenum modules
Self supported structural steel frame
Radiator discharge path
Metal deck cladding
Genset interface and flashing system
Exhaust mounting provisions
Optional preinstalled flanged exhaust from a partner supplier

Project Support

PE stamped drawings licensed as needed by project
Project specific drawings and specifications
Pick plans
Weights and rigging information
Installation guide
Dedicated RoXteel project management
First installation support when appropriate

From one supplier, under one defined scope.

RoXteel brings structural support and radiator discharge infrastructure under one defined scope, reducing handoffs between structural and mechanical teams.

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How the Modular Plenum System Works

Modular Configuration

20 foot sections stack into 40 and 60 foot plenum towers. Engineered straddle configurations support taller 80 and 100 foot applications where required.

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Genset Compatibility

Designed for most industrial scale and MW class gensets, including CAT, Generac, Rolls-Royce / MTU Solutions, Cummins, and Rehlko, among others.

Compatible with most industrial-scale / MW-class / high-capacity gensets. Manufacturer names are used for reference; RoXteel does not imply formal OEM endorsement.

Structure & Engineering

Prefabricated structural steel frame clad with metal deck. Engineered for applicable IBC / ASCE 7 loading, self supported construction, and PE stamped drawings licensed as needed by project.

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RoXteel plenum tower being assembled on site with a scissor lift

10X Faster Erection

A standardized modular system built for controlled, predictable site assembly — far faster than conventional site built discharge infrastructure.

Deliver Pick Bolt Repeat

RoXteel supports installation with project specific drawings, pick plans, weights, rigging information, and dedicated project management.

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~90%

Less erection time

~90%

Less subcontractor labor

2 to 3

Sixty-foot towers per week

First Tower

~A couple of days.

Later Towers

Often under a day.

Built for Schedule Certainty

Standard Production

6 to 9 Months

Typical standard lead time across configurations. Made to order.

Inventory Program, Launching in 2027

4 to 6 Weeks

Expected lead time for inventoried standard 20 foot sections supporting towers up to 60 feet, ready for install.

Exhaust components may require longer lead times. If pre installed exhaust is required, additional lead time will apply.

See Lead Times & Inventory See Installation & Deployment

Modular vs. Site Built

Two trades. Two scopes. One problem.

The conventional plenum becomes an afterthought split across structural and mechanical scopes. RoXteel consolidates it into one standardized, self-supported system.

RoXteel Modular

Conventional Site Built

Scope

One supplier, one defined scope — structure and discharge together.

Split across structural steel and mechanical / sheet metal scopes.

Support

Self-supported, engineered to IBC / ASCE 7 wind, seismic, snow, and ice.

Often relies on a structural screen wall or surrounding building.

Discharge Path

Integrated radiator discharge path within the modular system.

Separate sheet-metal discharge scope coordinated by another trade.

Field Work

Bolt-up assembly — about 12 exterior bolts per cube, no field fabrication.

Custom field fabrication, multiple trades, more site congestion.

Schedule

Predictable — about 2 to 3 sixty-foot towers per week once crews learn.

Weather-dependent, variable, and harder to sequence.

Exhaust

Optional preinstalled, flanged exhaust integrated at the factory.

Exhaust coordinated and installed separately on site.

Nationwide Manufacturing. Local Deployment Support.

RoXteel manufactures modular plenum systems for mission critical projects across the United States, with installation planning support that follows the system wherever it ships. In Arizona, sister company ATM Steel may provide installation subject to availability and schedule.

Nationwide Manufacturing Arizona Installation

RoXteel nationwide project reach across the United States

Explore the System in Detail

Go deeper into system heights, engineering, installation planning, and production schedules.

Ready to Spec the System?

Spec language, CAD/Revit details, and design guidance — typically supplied within approximately two days.

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