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Allen-Sherman-Hoff

Ash handling replacement parts and performance upgrades

ANDRITZ supplies high‑performance parts and upgrades for Allen‑Sherman‑Hoff ash handling systems and most other major brands. We maintain inventory for a wide range of critical components to ensure fast delivery when you need it.

We also provide dependable after-sales support, with spare or replacement parts, maintenance services, and component and system upgrades to maximize the life of your equipment. An experienced product support staff with access to detailed component lists is dedicated to providing the correct OEM parts for your specific application, vintage, model and brand of ash handling equipment. Our engineered upgrades are evaluated for potential improvements in system performance, ease of maintenance, and reduced operational costs.

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Allen‑Sherman‑Hoff (A-S-H) LLC

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An extensive network of worldwide regional service centers, field service engineers and technical support personnel are available to provide customized services and aftermarket solutions for your requirements, including:

  • System assessment, walk-downs
  • Technical assistance with operations issues (fuel changes, pluggage problems, etc.)
  • Startup support, commissioning
  • Control system support
  • Component and system upgrades
  • Replacement and spare part supply
  • Inventory management programs
     

Bottom ash components

PowerASH single-roll clinker grinder

PowerASH single-roll clinker grinder

Designed to handle the highly abrasive bottom ashes generated by coal-fired boilers. Its high crushing force and unique roll tooth pattern are highly effective for the remaining larger slag falls.

Double-Roll clinker grinder

Double-Roll clinker grinder

For applications requiring even higher crushing force and more output particle size options than our PowerASH® single-roll grinder.

Hydrobin® dewatering bin gate

Hydrobin® dewatering bin gate


Efficiently regulates the discharge of material from the Hydrobin dewatering bin once the dewatering cycle is completed.
 

ASHFLO valve

ASHFLO valve


Provides reliable shut-off operation in pyrites removal systems, bottom ash transport systems, and many other slurry transport applications. Able to handle severe operating conditions.
 

Ni-hard grinder rolls

Ni-hard grinder rolls
 

Provides wear-resistant crushing to pulverize bottom ash material to a suitable transport size. Our grinder rolls are made of hard-as-cast Ni-hard for a longer wear life.

Fly ash components

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3600 Style II pugmill

3600 Style II pugmill
 

Effectively combines dry fly ash from a silo with water to form a moist mixture. This mixture is readily transferable and transportable with minimal dust emissions. The unit is fully assembled for ease of installation, uses durable materials to lengthen wear life, and is designed with accessible components for easy on-line inspection and maintenance.

Style IV airlock

Style IV airlock


Used primarily for the transfer of fly ash or other dry, free-flowing, granular solids, the Style IV airlock design is available for both pressure and vacuum system applications. In a pressure conveying system, solids are transferred from an overhead collection point into a receiving chamber by utilizing a set of isolation gates above and below the chamber. In vacuum conveying systems, the filter collector is located above the ash storage silo. The A-S-H airlock adjusts the pressure zones between the filter collector and the silo without requiring a break in the vacuum level for continuous operation.
 

Advantage Series 8 and 12 in. material handling valve

Advantage Series 8 and 12 in. material handling valve


Suitable for regulating dry, free-flowing fly ash material into a transport system. Designed for changing or harsher operating conditions, including stickier and more abrasive ash, our Advantage Series valves encourage ash flow and minimize wear by utilizing hardened components for high-abrasion zones. They are available for lateral feed vacuum conveying systems and as a direct replacement for UCC® Tiger™ valves.
 

Style III equalizer valve

Style III equalizer valve


Used in pressure systems for airlock equalization and in vacuum systems for collector equalization applications, the Style Ill equalizer valve is compact, lightweight and affordable.
 

Retrofit kit for Style IV airlock

Retrofit kit for Style IV airlock


Replacement wear part upgrade provides improved wear life, easier maintenance and increased sealing force for greater material head support compared to Style I airlock components.
 

CycloASH 60

CycloASH 60


Multiple chamber design allows for continuous ash collection—even when ash is being loaded into the storage silo. The CycloASH 60 collector offers easy maintenance, extended wear life and superior sealing.
 

CycloASH 60

Type H material handling valve


Designed specifically to feed ash into dilute-phase vacuum systems on a batch basis. The Type-H material handling valves are durable, efficient and can handle the most severe operating environments.
 

Type H material handling valve

Style IV airlock refurbishment, maintenance and upgrade kit

Refurbishment and maintenance kits for Allen-Sherman-Hoff® Style I and IV airlocks, as well as upgrade kits to convert Style I airlocks to Style IV design, these kits come complete with everything needed to refurbish your airlock to original operating condition.

Pipings and fittings

Style IV airlock refurbishment, maintenance and upgrade kits

ASHCore ceramic-lined pipe and fittings

Feature wear-resistant tiled ceramic liners that are custom fit to an outer steel shell for optimum performance and long wear life. With applications in both hydraulic and pneumatic conveying systems, they are recommended for high-abrasion areas such as elbows, tees, laterals, inlet regions and transfer points.

ASHCore ceramic-lined pipe and fittings

ASHCOLITE™ replaceable wear-back fittings


Designed for vacuum systems that convey highly erosive ashes. Made of a chrome-iron alloy, the fitting bodies are available in two grades depending on hardness requirements

ASHCOLITE™ replaceable wear-back fittings

 ASHCOLITE™ integral wear-back fittings


Standard on all pressure systems, both hydraulic and pneumatic. They are specially designed to withstand the abrasive characteristics of many ashes.
 

Site services for Allen-Sherman-Hoff material handling products

Through a dedicated team of professionals, we provide onsite services focused on the proper operation and maintenance of material handling systems.
 

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Allen-Sherman-Hoff

Material handling for power and process industries

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Allen-Sherman-Hoff submerged grind conveyor

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Allen-Sherman-Hoff remote submerged chain conveyor

Bottom ash handling systems

Bottom ash from the combustion of solid fuels

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Fly ash handling systems

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Allen-Sherman-Hoff

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