• LT-040
  • LT-050
  • LT-065
  • LT-080
  • LT-100
  • LT-125
  • LT-150
  • LT-200
  • LT-250
  • LT-300
  • LT-350
  • LT-400


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Pressure Installation Longtech Blower

Type & Varian Product of

Pressure package includes, blower, electric motor, basic belt guard, suction silencer, relief valve, gauge, check valve, discharge silencer and flexible joint.

Three lobes Roots Blowers are a new series of Roots type blowers. Roots blowers are positive displacement pumps that are one of the most efficient types of pumps in their performance range. Roots blowers run dry as the oil is contained in the bearing/gearbox housing and sealed from the process air.

The three lobe technology reduces noise by as much 5dBa, this also lowers vibrations and increases the life of the bearings. The Longtech blowers are CNC machined to precision tolerances, promoting air performance and efficiency.

The blower range can handle from -500mbar to +800mbar with flow rates from 30m3/hr to 21,750m3/hr. The blowers are available as just the blower or as a blower package through to a full blower enclosure. Optional VSDs can be supplied also be provided.

  • Stable air flow and fewer pressure variations
  • Clean air, with no oil dirty particles
  • Construction is simple and easy to maintain
  • Bearings and gears are lubricated with oil on end side of the blower
  • All of product can be used for OEM
  • Proven design

Quality Manufacture
Quality Manufacture Longtech
Quality Manufacture Roots Blower
  • Bearing : All Longtech blower units are using SKF/ NTA bearing with long liife. Anti friction type vary with machine.
  • Seal : Low-wear, non-contacting,labyrinth-type seals ensure performance and long life
  • Rotors : Made from cast iron or stainless steel with stiff design for maximum life. By CNC and 3D machinery control to ensure the highest performance, providing with trouble-free performance and durability.
  • Shaft : Impeller shafts are alloy steel forging that allow higher operating pressure and rotation speeds.
  • Timing Gears : Forged steel gears with hardened and ground spur teeth to reduced vibrations and ensures accurate rotor to rotor timing for smooth adn efficient operation.
  • Casing : All Longtech blower unit are single-piece construction and precision machined cast iron, with ribs for strength and consistent thermal behaviour.

Structure & Material
Structure & Material Longtech
Structure Roots Blower
Material Longtech Roots Blower
Material Longtech Roots Blower

Feature :

  1. Strict management of quality standards. 
  2. Technical customization (size, pressure, design, pump accessories). 
  3. Assembled using state-of-the-art CNC machinery enabling precise measurements and grinding needed for more efficient pumping. 
  4. Fewer vibrations transmitted through the lobe, for longer-lasting shafts, gears and bearings. 
  5. Three-lobe design controls any backflow pressure towards rotor. 
  6. Oil and dust-free outlet. 
  7. Lubricated with high grade oil, proven to be a much better alternative to grease. 
  8. Significant improvement in air performance ratios: wider air, pressure and vacuum range, more stable flow, fewer pressure variations. 
  9. Much quieter: our new design can effectively reduce noise by approximately 5 dB. 
  10. Lower energy consumption. 
  11. All our products can be used for OEM. 
Specification :
(1) LT-type Roots Blower for Pressure use
ModelDiameterPressure mmAqAir volume m3 /minHorse Power (HP)
LT-0401.5"0 ~ 60000.48 ~1.050.5 ~ 2
LT-0502"0 ~80000.15 ~ 2.922 ~ 7.5
LT-0652.5"0 ~80001.09 ~ 5.173 ~ 10
LT-0803"0 ~80001.28 ~ 8.645 ~ 20
LT-1004"0 ~80002.74 ~ 13.367.5 ~ 25
LT-1255"0 ~80005.65 ~ 24.6610 ~ 40
LT-1506"0 ~80009.61 ~ 31.8415 ~ 50
LT-2008"0 ~800011.98 ~ 51.0325 ~ 75
LT-25010"0 ~800019.98 ~ 79.7030 ~ 125
LT-30012"0 ~800046.70 ~ 159.060 ~ 250
LT-35014"0 ~8000100.3 ~ 257.8100~500
LT-40016"0 ~8000208.8 ~ 362.5150~600

Application :

  1. Pneumatic conveying 
  2. Waste water treatment plants 
  3. Electroplating tanks 
  4. Activated sludge systems. 
  5. Drying systems. 

Download Product Catalog  Roots Blower

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