Double-Slope High Volume Rotary Feeder

When it comes to moving massive volumes of material such as dry powders,
granular materials, small rocks or other types of abrasive materials with
relatively uniform material size and low moisture content, Precision’s
Double Slop High Volume Rotary Feeder is the preferred choice!
A metering device and a high-capacity airlock all in one unit!

PMRD ROTARY FEEDER

What Makes The PMRD Work

Workplace

1

Application Specific:

Every Rotor and Barrell are perfectly mated up to meet the specifications of the application. Precisely machined to operate within the specified temperature and at the optimum throughput.

2

REBUILDABLE!

The only truly rebuildable rotary valve in the industry! Built for outage to outage functionality. Minimal maintenance ensures this unit meets your expectations! Able to be rebuilt, refreshed and reused!

3

Upgrades & Accessories:

A variety of upgradeable options exist so your new feeder can be perfectly equipped for your specific application.

4

Pairs:

The PMRD is usually installed in pairs because these critical systems like to have lots of throughput a plenty of redundancy.

5

Rotor:

A 6-pocket straight rotor vane, rounded pocket arrangement allows this unit to maximize throughput! The PMRD is built for SPEED!

6

Double Slope:

This rotary feeder is built with THROUGHPUT in mind! No knife, double-slope maximizes efficiency and keeps material flowing. Engineered for high temperatures!

7

Surface Hardened:

Depending upon the size, optional surface hardening is available to provide additional abrasion resistance!

8

HD Bearings:

Equipped with high load outboard tapered roller bearings, which are heavy-duty, industrial grade to ensure proper shaft alignment.

PMRD ROTARY FEEDER

Key Advantages

…for long running cycles before rebuilding or replacement should be considered; a 10 to 15-year useful life is regularly achieved in cement kiln feed applications.

…the PMRD feeders offer good value for applications requiring > 5 cubic feet per revolution of capacity – particularly applications discharging to atmospheric pressure.

…are well-suited for handling particularly abrasive materials and can often double the cycle between rebuilds.

…handling dry powders or granular materials can be expensive to solve using conventional, tight-tolerance rotary valves; the PMRD was designed to offer a cost-effective solution for these applications
…at the top of the preheater tower feeding stage 1 of the preheater, is a critical function to keeping the kiln operating; large, slow-running PMRD feeders in this application provide years of uninterrupted service.

Precision Machine & Manufacturing’s Focused Industries

  • Pulp
  • Cement
  • biomass
  • coal
  • Food
  • Metals
PMRD ROTARY FEEDER

Designed For Performance.Built To Last.

  • Fabricated housing with an integral mild steel or Tri-Braze barrel; barrel thicknesses from 5/8” to 1-1/8” thick depending on feeder size.
  • The barrel is precision-bored to a concentric, known diameter to provide a true fit with the rotor.
  • All barrels are overlaid with an industrial hard chrome, the typical thickness is 0.005” to 0.009” depending on feeder size – provides the first-line defense against abrasive wear.
  • Two rotor configurations available depending on the application:
    • 8-vane, closed-end helical rotor
    • 6-vane, closed-end, straight-vane, rounded-pocket rotor
  • Feeder inlet is a double-slope design with replaceable Tri-Braze wear plates bolted to each inlet slope.
  • The endbells include adjustable brass seals to minimize the possibility of pressurized air migration past the rotor end in pneumatic applications.
  • Heavy-duty Dodge piloted flange bearings installed outboard of the housing to isolate heat, moisture, and dirt from the bearings.
  • Nord, SEW, or Sumitomo shaft-mounted gear-motor drive packages for clean, safe installations providing direct application of power with options for variable speeds and other functions.
PMRD ROTARY FEEDER

Available Options & Upgrades

  • OPTION
  • BENEFIT

Operations and maintenance staff safety.

Detect and then alarm or notify that the feeder is not operating.

For corrosive applications.

PMR ROTARY FEEDER

Technical Specifications

  • CATEGORY
  • SPECIFICATION
MATERIAL TYPES Particle sizes typically less than 1” in the major dimension.
Moisture content typically well below 5%.
Compatible with product temperatures up to 1200° F.
POWER REQUIREMENTS Drive motors powered by
230/460V 3Ph 60Hz
575V 3Ph 60Hz
Other voltages and frequencies available
Zero speed sensors operate at control voltage.
VFD’s operate single-phase up to system voltage.
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COMPONENT

REBUILD

PROGRAM

Precision Machine & Manufacturing offers a Component Rebuild Program that can cost as little as 75% of a new component.

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Why Precisions?

Neque porro quisquam est, qui dolore ipsum quia dolor site amet, consectetur adipisci veiti,
sed quia non incidunt lores ta porro ame. -Steve Wison, Monarch Cement

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sales@premach.com