VOL 18 ISSUE #2
Callanan Industries' Dillman UniDrum plant
Callanan Industries' Dillman UniDrum plant features a 600 ton (544 tonne) New Generation Storage System.

Callanan Industries, Inc. is a leading supplier of paving materials and construction services in New York. Founded in 1883 by Peter Callanan in South Bethlehem, the company focused on aggregate mining. In 1895, Callanan won the first road building contract let by New York State. A forward-thinking man, Callanan pioneered the concept of a state highway system. Callanan Industries was acquired by Oldcastle, Inc. in 1985 and continues its mission to be cost competitive while providing high-quality materials today.

Fresh Start

When it comes to asphalt, look no further than Callanan Industries' purchase of a Dillman UniDrum plant in 2012. Although the 1994 Astec Double BarrelĀ® plant had served them well, the company decided it was time to trade it in and upgrade to a newer model.

"It made sense to upgrade and put in a new plant with the upcoming move to a new location," said Jeff Frani, general manager of asphalt operations with Callanan Industries. "We were new to Dillman and were impressed with the counterflow design of the UniDrum."

Brand New Plant

Callanan purchased a stationary 400 TPH (362 MTPH) 9 ft x 54 ft (2.74 m x 16.46 m) Dillman Unified counterflow drum plant for the South Bethlehem, New York, location.

 
With the counterflow design, we run recycle every day... and with the service we receive from Astec and Dillman, we are happy operators in the asphalt industry.
 

The plant features the following:

  • 10 ft x 14 ft (3.05 m x 4.27 m) seven-compartment cold feed system
  • 5 ft x 12 ft (1.52 m x 3.65 m) dual deck scalping screen
  • 68,194 CFM Pulse Jet baghouse
  • 600 ton (544 tonne) New Generation Storage System
  • 11 ft x 100 ft (3.35 m x 30.48 m) low-profile truck scale
  • Dual 10 ft x 14 ft (3.05 m x 4.26 m) recycle feed bins
  • Pilot control center with TCII control system
  • Astec warm mix system

Counterflow Design

What separates the Dillman UniDrum from other plants? It's the unique nature of producing quality hot-mix asphalt at a high production rate with a high percentage of recycle. The extra-long drum length maximizes mixing and drying times to reduce fuel usage and provide optimal mixing. The system eliminates the time-consuming process of trunnion alignment and ensures the equipment operates correctly. Centered around a large 20 in (50.8 cm) trunnion, fitted with adjustable double-row Timkenā„¢ bearings and ring fitters, this system is an industry exclusive, according to Dillman. The key is its unique pivot pin system, which allows the asphalt operator to easily dial in the dryer in a matter of minutes without the need of any special equipment. In the end, the dryer rotates properly without excess wear to the tires, trunnions, and thrust roller assemblies.

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Frani is a fan of the patented flighting design on the Dilman UniDrum. The flights are adjustable to better control the baghouse temperature and moisture removal from the aggregate. Its unique recycle entry is also a plus. The inlet into the drum allows immediate mixing of recycle with the hot aggregate, bringing the recycle up to temperature and removing moisture quickly. Maintenance is made easy with the clean-outs in the collar around the drum.

"The Dillman UniDrum is operating well for us; we're using 20-percent recycle on state surface mix and 30-percent recycle on base mix," said Frani. "We have several entities that we are supplying mix to for various projects around our area; we range anywhere from 2,500 tons to 3,000 tons a day (2,267 tonnes to 2,721 tonnes) depending on the job."

Frani continued: "The combination of quality equipment with top-notch service from Astec and Dillman makes our partnership worth its weight in asphalt."

  • Callanan Industries' new Dillman UniDrum plant features a Pulse Jet baghouse, TCII controls, a low-profile truck scale, and a seven-compartment cold feed system.

  • Callanan Industries' new Dillman UniDrum plant features a Pulse Jet baghouse, TCII controls, a low-profile truck scale, and a seven-compartment cold feed system.

  • Callanan Industries' new Dillman UniDrum plant features a Pulse Jet baghouse, TCII controls, a low-profile truck scale, and a seven-compartment cold feed system.

  • Callanan Industries' new Dillman UniDrum plant features a Pulse Jet baghouse, TCII controls, a low-profile truck scale, and a seven-compartment cold feed system.

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