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Model 26J Horizontal Balancing System

Model 26J Horizontal Balancing System

Model 26J Horizontal Balancing System

Product catalog summary
Overview: The Model 26J is a precision horizontal balancing machine designed for gas turbine applications, including fan hubs, compressor and turbine components, and shafts. It utilizes hard-bearing technology and force-measuring transducers for accurate unbalance measurement.
Key Features:
  • Rugged piezo-electric transducers that are unaffected by temperature or humidity and are sealed against dust and dirt.
  • Fully traversable work supports along a precision-machined bed with a gear-rack system ensuring parallel alignment.
  • Adjustable end-thrust assemblies with precision ball bearings for axial load in belt-drive systems.
  • All-metric design with optional safety guards meeting OSHA and CE requirements.
  • Custom hardware and software options, with various electronic measuring instruments available.
Technical Specifications:
  • Configuration options: End drive, Belt drive, Belt/end drive.
  • Maximum rotor weight: 11,500 kg for Model 26J, 9,000 kg for Model 26.1J.
  • Maximum rotor diameter: 2400 mm, with a maximum diameter over belt tensioner of 1750 mm.
  • Rotor length between bearing centers: 2700 mm maximum, 380 mm minimum for Model 26J.
  • Balancing speeds: Infinitely variable from 60 to 1800 rpm.
  • Accuracy: Displacement of C.G. ≤ 0.38 µm for Model 26J, ≤ 0.25 µm for Model 26.1J.
  • Sensitivity: ≤ 0.38 gmm/kg for Model 26J, ≤ 0.25 gmm/kg for Model 26.1J.
  • Unbalance reduction ratio: 95%.
  • Motor power: 75 hp dc.
  • Electrical characteristics: 460 V, 3-phase, 60 Hz or 380 – 440 V, 3-phase, 50 Hz.
  • Meets SAE ARP 4048 Specifications for Horizontal Machine Class 3000.
Contact Information: American Hofmann Corporation, 3700 Cohen Place, Lynchburg, VA 24501 USA. Tel: +1.434.522.0300 or +1.800.446.0997. Email: [email protected]. Website: www.hofmann-global.com.
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Catalog excerpts

Model 26J Horizontal Balancing System-2

End Drive Coupling With Gear Box Configuration End drive Belt drive Belt/end drive Maximum normal operating weight of rotor 11,500 kg (25,000 lb) 9,000 kg (20,000 lb) Maximum weight per pedestal 5,750 kg (12,500 lb) 4,500 kg (12,500 lb) Specifications for the Minimum weight of rotor 45 kg (100 lb) 20 kg (50 lb) 26.2J are the same as for Maximum diameter of rotor 2400 mm (94 in) 2400 mm (94 in) either the 26J or the 26.1J Max. diameter of rotor over belt tensioner 1750 mm (69 in) depending on which drive Max. length of rotor between bearing centers 2700 mm (106 in) 2700 mm (106 in) is being used....

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