williams rock crusher

Williams Rock Crusher: An Overview

The Williams Rock Crusher refers to a line of robust size reduction equipment manufactured by Williams Patent Crusher & Pulverizer Company, a prominent American industrial machinery manufacturer since 1871. These machines are engineered primarily for heavy-duty crushing, pulverizing, and grinding of a wide variety of materials, including limestone, coal, clay, rock, and other minerals. Unlike simple jaw crushers, Williams designs often feature impact-based or roller mill technology, emphasizing high-volume reduction, controlled top-size production, and suitability for both primary and secondary crushing stages in aggregate, mining, and industrial processing applications. This article outlines the core technology, presents comparative analysis, provides real-world application cases, and addresses common inquiries about this established equipment line.

Core Technology & Comparative Analysis

Williams crushers are known for several key designs. The Williams Reversible Nuggetizer® Impact Crusher is a central model, featuring a reversible rotor that allows hammers to be used on both ends for extended wear life before maintenance. It's designed for high reduction ratios. Another significant design is the Williams Roller Mill, which pulverizes material between rollers and a grinding ring, ideal for creating fine products like agricultural limestone or coal dust.

To understand where Williams machines fit, it's useful to compare their common impact-based approach with other primary crusher types.

Feature	Williams-Type Reversible Impact Crusher	Jaw Crusher	Cone Crusher
Primary Mechanism	Dynamic impact from hammers/breakers.	Compressive force between fixed and moving jaws.	Compression between mantle and concave.
Best For	Medium-hard to hard materials with low silica; high reduction ratio in single stage.	Very hard, abrasive materials (e.g., granite); primary crushing only.	Hard, abrasive materials; secondary/tertiary crushing for finer product.
Product Shape	Moderately cubical; can generate more fines.	Slabby/elongated; less controlled shape.	Well-graded, cubical product.
Advantage	High reduction ratio (up to 24:1), reversible parts for wear life, accessible maintenance.	Simplicity, reliability with highly abrasive rock.	Consistent product sizing at medium-fine ranges.

Real-World Application Cases

• Case 1: Agricultural Limestone Production (Missouri, USA): A midwestern aggregate producer utilizes a Williams Reversible Impact Crusher as the primary crusher for run-of-quarry limestone. The machine's ability to handle variable-sized feed directly from the loader and produce a well-broken product at high tonnage (approx. 500 TPH) is critical. The reversible hammers double the service interval between costly hammer changes versus a non-reversible design.
• Case 2: Pulverized Fuel (PF) Coal Preparation (Power Generation): A utility plant employs a Williams Roller Mill to pulverize bituminous coal to a fine powder (70-80% passing 200 mesh) for combustion in boiler burners. The mill's grinding action provides precise control over final particle size distribution—a key factor for combustion efficiency and emissions control—demonstrating the company's role beyond simple rock crushing into industrial milling.
• Case 3: Glass Batch Cullet Processing (Recycling Plant): A recycling facility uses a smaller Williams "Type K" Impact Crusher specifically designed for friable materials to reduce mixed glass cullet to a consistent size fraction suitable for re-melt in glass furnaces or use in abrasives.

Frequently Asked Questions (FAQ)

1. What is the main advantage of a reversible impactor like the Williams Nuggetizer?
   The primary advantage is extended wear part life and reduced maintenance cost/downtime. When the leading edges of the hammers are worn down past specification on one side of the rotor assembly can be reversed directionally so that fresh hammer edges on the opposite side become the new leading edges without physically removing all hammers.

2. Are Williams crushers suitable for very hard and abrasive granite or trap rock?
   While capable of processing these materials impact crushers generally exhibit higher wear costs per ton compared compression crushers like cones or jaws when dealing with highly abrasive high-silica content rocks They are often more economically applied to moderately abrasive materials such as limestone dolomite or cement rock where their high reduction ratio offers process stage elimination benefits

3. Can Williams equipment handle wet or sticky materials?
   Standard impact crushers can experience clogging issues with excessively wet or clay-rich feed material However Williams offers specialized designs like their "Non-Clog" models which feature larger internal clearances different hammer configurations internal breaker plates sometimes even chain curtains at feed opening mitigate buildup facilitate processing of damper feeds

4. Does Williams manufacture spare parts for older models?
   Yes as an established OEM since early 1900s company maintains patterns drawings specifications support its legacy equipment lines Availability specific parts very old models may require casting lead time but support typically exists given company’s long history continuous operation

5. What industries beyond mining aggregates use this equipment?
   Applications are diverse including cement energy power generation recycling wood bark shredding food spice processing chemical preparation fertilizer production reflecting versatility core size reduction technology adapting machine configurations specific material characteristics