Kinney Tuthill T855 & T1055 Roots Blowers – High-Performance Industrial Blowers

Kinney Tuthill T855 & T1055 – Premium Roots Blowers for Demanding Applications

Kinney Tuthill T855 and T1055 Roots blowers are high-performance positive displacement blowers designed for the most demanding industrial applications. These robust blowers deliver reliable, oil-free air or gas compression and are renowned for their durability, efficiency, and low maintenance requirements.

🎯 What are Roots Blowers?

Roots blowers (also called rotary lobe blowers or positive displacement blowers) are rotary machines with two counter-rotating lobed rotors. They provide constant volumetric flow regardless of pressure and can be used for both vacuum and pressure applications.

⚙️ Operating Principle:
  1. Two synchronized figure-eight-shaped rotors rotate in opposite directions
  2. Rotors do not touch each other or the housing (non-contact operation)
  3. Air/gas is trapped between rotors and housing wall
  4. Air/gas is transported from inlet to outlet without internal compression
  5. Compression occurs at the outlet when meeting system pressure
  6. Timing gears ensure precise rotor synchronization
✅ Key Advantages of Roots Blowers:
🛢️ Oil-Free Operation No oil in the air stream – clean, uncontaminated air/gas
📊 Constant Flow Volumetric flow remains constant regardless of pressure variations
⬆️⬇️ Reversible Can operate for both pressure and vacuum applications
🔧 Low Maintenance Few moving parts, simple design, long service life
💪 Robust Construction Designed for continuous 24/7 operation
🌡️ Wide Temperature Range Suitable for various operating conditions

📊 Technical Specifications:

🔷 T855 Roots Blower
ParameterValue
Flow Rate: 850 - 1,200 m³/h (depending on speed and pressure)
Pressure (Positive): up to 1.0 bar (g)
Vacuum: up to -0.5 bar (500 mbar vacuum)
Operating Speed: 1,500 - 3,600 rpm
Power Range: 15 - 75 kW (depending on pressure and speed)
Drive Type: Belt drive or direct coupling
Cooling: Air-cooled or water-cooled
🔶 T1055 Roots Blower
ParameterValue
Flow Rate: 1,050 - 1,500 m³/h (depending on speed and pressure)
Pressure (Positive): up to 1.0 bar (g)
Vacuum: up to -0.5 bar (500 mbar vacuum)
Operating Speed: 1,500 - 3,600 rpm
Power Range: 18.5 - 90 kW (depending on pressure and speed)
Drive Type: Belt drive or direct coupling
Cooling: Air-cooled or water-cooled

Available Kinney Tuthill Roots blower models: T855, T1055, Roots blowers, rotary lobe blowers, positive displacement blowers, oil-free blowers, vacuum blowers, pressure blowers, industrial blowers, process air blowers, pneumatic conveying blowers, wastewater aeration blowers, bi-lobe rotors, tri-lobe rotors

🔩 Construction Features:

⚙️ Main Components:
ComponentMaterial/DesignFeatures
Housing High-grade cast iron Precision-machined, robust, thermally stable
Rotors Cast iron or ductile iron Dynamically balanced, hardened surface, minimal clearances
Timing Gears Hardened alloy steel Precision ground, oil-bath lubricated, long service life
Shafts Forged steel High strength, precision machined, hardened journals
Bearings Heavy-duty roller bearings Oil-lubricated, designed for continuous operation
Shaft Seals Mechanical face seals or lip seals Reliable sealing, prevents oil contamination of air stream
Gear Housing Cast iron with oil reservoir Separate from air chamber, splash lubrication
✅ Design Advantages:
  • Non-contact operation – rotors never touch, minimal wear
  • Oil-free air chamber – clean, uncontaminated air/gas
  • Separate gear lubrication – timing gears in isolated oil bath
  • Precision clearances – 0.15-0.30 mm for optimal efficiency
  • Dynamically balanced rotors – low vibration, quiet operation
  • Modular construction – easy maintenance and component replacement
  • Reinforced housing – handles thermal expansion

🏭 Primary Applications:

💨 Pressure Applications (Positive Pressure):
ApplicationDescription
🚛 Pneumatic Conveying Conveying powders, granules, pellets (cement, grain, plastics, chemicals, minerals)
💧 Wastewater Aeration Sewage treatment plants, biological treatment, activated sludge process
🐟 Aquaculture Aeration Fish farming, shrimp ponds, oxygen enrichment
🔥 Combustion Air Burners, incinerators, industrial furnaces, boilers
⚗️ Process Air Chemical reactors, fermentation, oxidation processes
💨 Fluidized Beds Drying, coating, granulation, gasification
🏗️ Material Handling Pneumatic transport systems, silo discharge, loading/unloading
📄 Paper Production Vacuum boxes, suction rolls (when used in vacuum mode)
🌀 Vacuum Applications (Negative Pressure):
ApplicationDescription
📦 Vacuum Packaging Food packaging, pharmaceutical packaging, electronics packaging
🏗️ Material Handling Vacuum conveying of powders and granules
📄 Paper & Printing Vacuum tables, sheet feeding, paper handling
🪵 Woodworking CNC vacuum tables, veneer pressing, panel handling
🏭 Pick & Place Automated handling systems, robotic grippers
🧹 Industrial Vacuum Central vacuum systems, dust collection
🔧 Clamping & Holding Vacuum fixtures, workpiece holding

🎛️ Drive & Control Options:

🔌 Drive Configurations:
Drive TypeAdvantagesApplications
Belt Drive Variable speed possible, vibration damping, easy maintenance, quieter operation Standard applications, variable flow requirements
Direct Coupling Compact design, higher efficiency, no belt maintenance Constant speed applications, space-limited installations
VFD (Variable Frequency Drive) Precise flow control, energy savings, soft start, process optimization Variable demand processes, energy-critical applications
⚡ Control Features:
  • Pressure/vacuum switches – automatic on/off control
  • Temperature monitoring – protects against overheating
  • Pressure relief valves – safety against overpressure
  • Inlet filters – protects blower from contaminants
  • Silencers – reduces noise at inlet and outlet
  • Pressure gauges – inlet and outlet monitoring
  • Vibration sensors – condition monitoring

🌡️ Cooling Systems:

💨 Air-Cooled Version:
  • ✓ Natural air circulation around housing
  • ✓ Cooling fins on housing exterior
  • ✓ Suitable for ambient temperatures up to 40°C
  • ✓ No water supply required
  • ✓ Lower initial cost
  • ✓ Best for: Moderate duty cycles, cooler environments
💧 Water-Cooled Version:
  • ✓ Water jackets integrated in housing
  • ✓ More efficient cooling for heavy-duty operation
  • ✓ Allows higher pressure differentials
  • ✓ Suitable for continuous 24/7 operation
  • ✓ Lower operating temperatures = longer service life
  • ✓ Best for: Continuous operation, high pressures, hot environments

🔧 Maintenance & Service:

📅 Maintenance Schedule:
TaskIntervalDescription
Daily Inspection Daily Visual check, listen for unusual noises, check temperature
Oil Level Check Weekly Check gear oil level, top up if necessary
Belt Tension Check Monthly Check and adjust belt tension (for belt-driven units)
Inlet Filter Cleaning Monthly Clean or replace inlet air filter
Gear Oil Change 6-12 months Drain and replace timing gear oil
Belt Replacement 12-24 months Replace V-belts or timing belts (if worn)
Bearing Inspection 12-24 months Check bearings for wear, listen for noise
Shaft Seal Inspection 12-24 months Check seals for leakage, replace if necessary
Rotor Clearance Check 2-3 years Measure clearances, adjust if necessary
Complete Overhaul 5-10 years Full disassembly, replace all wear parts, reassemble, test
🔧 Common Wear Parts:
  • Shaft seals (mechanical face seals)
  • Bearings
  • Timing gears (if worn)
  • V-belts or timing belts
  • O-rings and gaskets
  • Inlet air filters
  • Pressure relief valves

⚠️ Operating Considerations:

🚨 Important Points:
  • ⚠️ Never exceed maximum pressure differential (typically 1.0 bar)
  • ⚠️ Always use inlet filtration – prevents rotor damage from debris
  • ⚠️ Ensure adequate cooling – prevents overheating
  • ⚠️ Install pressure relief valve – protects against overpressure
  • ⚠️ Maintain proper rotor clearances – prevents contact and damage
  • ⚠️ Use specified lubricating oil – ensures proper gear lubrication
  • ⚠️ Install vibration isolation – reduces noise transmission
✅ Best Practices:
  • ✓ Install inlet and outlet silencers for noise reduction
  • ✓ Use flexible connections to reduce vibration transmission
  • ✓ Provide adequate ventilation around blower
  • ✓ Mount on solid, level foundation
  • ✓ Install pressure gauges for monitoring
  • ✓ Use VFD for variable demand applications
  • ✓ Regular maintenance according to schedule

📊 Performance Characteristics:

📈 T855 Performance Curves:
  • At 1,800 rpm: ~850 m³/h at 0.3 bar pressure differential
  • At 2,400 rpm: ~1,100 m³/h at 0.5 bar pressure differential
  • At 3,000 rpm: ~1,200 m³/h at 0.8 bar pressure differential
  • Power consumption increases with pressure and speed
📈 T1055 Performance Curves:
  • At 1,800 rpm: ~1,050 m³/h at 0.3 bar pressure differential
  • At 2,400 rpm: ~1,350 m³/h at 0.5 bar pressure differential
  • At 3,000 rpm: ~1,500 m³/h at 0.8 bar pressure differential
  • Higher capacity than T855 for same operating conditions

🔧 Our Service for T855 & T1055 Roots Blowers:

🛒 Sales New T855 and T1055 Roots blowers with all drive and cooling options
🎯 System Design Complete system engineering including piping, controls, accessories
♻️ Complete Overhaul Full reconditioning: disassembly, cleaning, part replacement, reassembly, testing
⚙️ Repair Rotor resurfacing, bearing replacement, seal replacement, gear repair
📦 Spare Parts Comprehensive inventory: seals, bearings, gears, belts, filters
🚗 On-Site Service Installation, commissioning, alignment, vibration analysis, troubleshooting
🔍 Performance Testing Flow testing, pressure testing, clearance measurements, efficiency analysis
💡 Technical Support Application engineering, system optimization, energy audits

🌟 Why Choose Kinney Tuthill T855 & T1055?

🇺🇸 American Quality Kinney Tuthill heritage since 1886 – over 135 years of blower technology
💪 Heavy-Duty Construction Designed for continuous 24/7 industrial operation
🛢️ Oil-Free Air Clean, uncontaminated air/gas delivery
📊 Constant Flow Volumetric flow independent of pressure variations
🔧 Low Maintenance Simple design, accessible components, long service intervals
⬆️⬇️ Versatile Can be used for both pressure and vacuum applications
💰 Cost-Effective High efficiency, low operating costs, long service life
🌍 Proven Worldwide Thousands of installations in demanding industrial environments

💡 T855 vs. T1055 – Which to Choose?

✅ Choose T855 When:
  • Flow requirement: 850 - 1,200 m³/h
  • Moderate capacity sufficient
  • Lower initial cost desired
  • Smaller installation space available
  • Lower power consumption preferred
✅ Choose T1055 When:
  • Flow requirement: 1,050 - 1,500 m³/h
  • Higher capacity needed
  • Process demands more airflow
  • Future expansion anticipated
  • Better efficiency at higher flows

Need a Kinney Tuthill T855 or T1055 Roots Blower?

Whether T855 blower for moderate capacity applications or T1055 blower for higher flow requirements – our Kinney Tuthill experts are happy to advise you in selecting the optimal Roots blower for your specific process needs.

We provide complete turnkey systems including blower, motor, drive configuration (belt or direct), cooling system (air or water), controls, filtration, silencers, and all necessary accessories – engineered specifically for your application.

We also specialize in complete overhaul and repair of existing T855 and T1055 blowers – restoring them to original factory performance specifications with genuine parts and expert workmanship.

American industrial quality since 1886 – professional local service! Contact us today for expert consultation and reliable Roots blower solutions for your pressure or vacuum application.

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