Used Alliance Corporation Equipment for Sale

Who Alliance Corporation isAlliance Corporation is a US manufacturer and service company based in La Habra, California, focused on regenerative thermal oxidizers (RTOs) for the destruction of volatile organic compounds (VOCs) in industrial process exhaust. The company states it was founded as a service company specializing in RTOs, working on existing air pollution control systems, and later began building its own RTO line under the Alliance brand. RTOs are its whole business — it describes itself as a specialist that manufactures and services regenerative thermal oxidizers, including service on systems built by other manufacturers.

What Alliance buildsAlliance's product line covers several RTO configurations: the KRONUS, a compact modular two-bed unit with poppet valves built into the oxidizer body, which removes the transition ducts common on conventional RTO designs; the TRITON, which differs from the KRONUS by adding a third heat exchange bed; and the BOXIDIZER and BOXIDIZER 3-Bed designs. Every oxidizer is tailored to the specific process and facility, and units are factory pre-assembled — mechanical assembly, plumbing and electrical — then tested and control-checked before shipment, which shortens field installation and startup.

Controls and remote supportAlliance puts heavy emphasis on controls. Its RTOs use a PLC-based control system with a graphic operator interface and self-diagnosing software, and each unit is equipped with an Ethernet-connected VPN as standard, allowing the manufacturer to monitor PLC and HMI code remotely and troubleshoot in real time. Published destruction efficiency figures for the KRONUS are a guaranteed 95% VOC destruction in standard configuration, configurable to a guaranteed 98%, with higher figures reported in some field applications.

What to check on a used unitBecause the oxidizer is a combustion and heat-recovery system, condition assessment matters more than cosmetics. Ask for the PLC and HMI program version and confirm the VPN/telemetry hardware is present and functional, since Alliance's service model depends on remote access to the controller. Inspect the ceramic heat exchange media for plugging, breakage or channeling, and check the poppet or switching valves and their seats for leakage — valve condition directly affects destruction efficiency. Verify the burner, fuel train, thermocouples and any refractory or insulation for damage, and review operating logs for inlet VOC loading, process flow and any periods of high-temperature excursion.

Process fit and documentationRTOs are application-specific: a unit sized for one process stream may not suit another. Confirm the original design VOC loading, airflow and required destruction efficiency against your permit limits, and check whether the scope has changed since commissioning, since program changes outside the original scope can be billed separately. Request the commissioning records, factory test documentation, operator manuals and any service history before purchase.

Parts and service supportAlliance maintains its own service organization from La Habra with after-hours availability and states it services all brands of RTOs, which is useful for buyers of used Alliance equipment. Ask about current support terms and whether any lifetime program guarantee on the PLC software transfers with the machine — the published terms tie that guarantee to a working internet connection to the unit's VPN.

Meadoworks is your trusted source for used Alliance Corporation equipment. As third-generation industrial equipment dealers and AMEA-certified appraisers with over 50 years of experience, we offer quality-inspected Alliance Corporation machines at competitive prices. Most of our Alliance Corporation inventory sells before we can list it online — call 800-323-0307 for equipment not yet listed.

Every machine includes detailed specifications and high-resolution photos, and inspection visits are available for most equipment. We ship worldwide with experienced rigging partners and offer financing for qualified buyers. Have Alliance Corporation equipment to sell? Get a free valuation or contact our team.