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Heavy Duty Rotary Airlock

Heavy Duty Rotary Airlock Heavy Duty Rotary Airlock Specialists Heavy Duty Rotary Airlock Manufacturers Heavy Duty Rotary Airlock - Rotolok USA Heavy Duty Rotary Valve Heavy Duty Rotary Airlock
Heavy Duty Rotary Airlock Heavy Duty Rotary Airlock Specialists Heavy Duty Rotary Airlock Manufacturers Heavy Duty Rotary Airlock - Rotolok USA Heavy Duty Rotary Valve Heavy Duty Rotary Airlock

Key Features

  • Maximum number of blades in contact with body at one time without affecting throughput.
  • Good throat opening at airlock entry allowing high pocket filling efficiency.
  • Minimum clearance at rotor tips and sides with body.
  • Robust body adequately stiffened to prevent distortion.
  • Heavy shaft diameters minimising deflection.
  • Outboard bearings for non-contamination.
  • Packing gland type seals.
  • Maximising airlock speed to 25 rpm -prolonging life, ensuring good throughput.
  • Precision machining of components.
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Rotolok’s heavy-duty rotary airlocks are built for the most abrasive products in mining, aggregate and mineral applications. Thicker bodies, heavier shaft diameters and Ni-Hard wear-back pipes with easily replaceable components extend service life and cut downtime in high-wear duties.

Pressure differentials up to 20 psi and temperatures up to 750°F are considered the norm, with extreme pressures and temperatures accommodated through special designs; contact the Rotolok engineering team for these applications. Units are available with circular or square inlets from 2″ up to 36″.

For the standard rotary airlock and valve range, see our rotary airlocks overview.

  • BODIES

    Cast Iron, Stainless Steel or Aluminum precision bored.

  • END COVERS

    Cast Iron, Stainless Steel or Aluminum spigot located in body for concentricity.

  • ROTOR

    Fabricated Mild or Stainless Steel.

  • SHAFT SEAL

    Gland type with PTFE packing.

  • BEARINGS

    Sealed-for-life ball type rigged outboard or high temperature above 480°F.

  • DRIVE

    NEMA Frame C-Face TEFC motor mounted to parallel shaft gear reducer sidewall mounted to airlock body complete with taper lock sprockets and chain all in an enclosed OSHA approved guard

  • Quick Release Rotors
  • Direct Coupled Drives
  • Air Purge Glands
  • Body Vents
  • Inlet Vent Hoppers
  • Dropout Boxes
  • V.S. Drives
  • Speed Switches
  • Explosion Proof Motors
  • Shear Plate Deflectors
  • Tungsten Carbide Coating
  • Hard Chrome Internals etc.
Heavy Duty Rotary Airlock Square Inlet

All dimensions are in inches unless otherwise stated

SIZE A A1 B B1 C D E F G H J K L M N P Q R S T V W X H.P.
5 5 5 8 ⅞ 8 ⅞ ½ 3 ⅞ 7 ¾ 7 ⅞ 6 ¼ 9 ⅛ 16 8 ⅝ 7 28 4 ⅝ 8 ⁹⁄₁₆ 8 7 On Application ½
6 6 6 9 ⅞ 9 ⅞ ½ 5 ½ 11 7 ⅛ 6 ⅞ 9 ¾ 16 9 ¼ 7 ¾ 28 4 ⁵⁄₁₆ 12 ½ 8 7 3 2 ¾ 3 2 ¾ ½
8 8 8 11 ⅞ 11 ⅞ ⅝ 6 ½ 13 6 ⅛ 7 ⅞ 10 ¾ 16 10 ¼ 8 ⅝ 28 5 ⅝ 12 ½ 8 7 3 3 ⁹⁄₁₆ 3 3 ⁹⁄₁₆ ½
10 10 10 13 ¼ 13 ¼ ⅝ 7 ½ 15 7 ⅞ 9 12 ¾ 18 ⅞ 11 ½ 9 ⅞ 35 6 ⁵⁄₁₆ 12 ⁹⁄₁₆ 10 8 3 4 3 4 1
12 12 12 15 ¾ 15 ¾ ½ 9 ¹⁄₁₆ 18 ⅛ 6 ¾ 10 ¼ 13 ⅞ 18 ⅞ 12 ⅝ 11 35 7 ¹¹⁄₁₆ 12 ½ 10 8 3 4 ¹¹⁄₁₆ 3 4 ¹¹⁄₁₆ 1
14 14 14 18 ½ 18 ½ ¾ 10 ⅛ 20 ¼ 6 ¼ 10 ⅝ 14 ⅜ 20 ⅛ 13 11 ⅜ 35 8 ¹¹⁄₁₆ 12 ½ 10 8 3 5 ½ 3 5 ½ 1
16 16 16 21 ⅝ 21 ⅝ ¾ 11 ⅞ 22 ⅞ 4 ½ 13 16 ¾ 24 ⅝ 15 ⅞ 13 ⅞ 50 9 ¼ 12 ¹¹⁄₁₆ 14 9 3 6 ½ 3 6 ½ 1 ½
18 18 18 24 24 ¾ 12 ⅝ 24 ⅞ 3 ⅜ 14 17 ¾ 24 ⅝ 16 ⅞ 14 ⅞ 50 11 ¼ 12 ¹¹⁄₁₆ 14 9 3 7 ⅜ 3 7 ⅜ 2
20 20 20 25 ⅝ 25 ⅝ ¾ 13 ⅜ 26 ⅜ 5 15 18 ¾ 27 ½ 17 ⅞ 15 ⅞ 50 11 ⅜ 16 ¹¹⁄₁₆ 14 9 4 5 ¹³⁄₁₆ 4 5 ¹³⁄₁₆ 2
24 24 24 29 ½ 29 ½ ¾ 15 29 ½ 4 ½ 17 20 ¾ 27 ½ 19 ¾ 17 ¾ 50 13 ³⁄₁₆ 16 ¹¹⁄₁₆ 14 9 4 6 ¹³⁄₁₆ 4 6 ¹³⁄₁₆ 3
30 29 ½ 29 ½ 39 ⅜ 39 ⅜ 1 19 ⅝ 39 ⅜ 3 19 ¾ 25 ¼ 35 ¾ 23 ⅞ 20 ½ 70 17 ¹¹⁄₁₆ 24 ¹¹⁄₁₆ 20 12 6 5 ⅞ 6 5 ⅞ 3
36 36 36 45 ⅞ 45 ⅞ 1 23 ⅝ 47 ¼ -1 23 ⅞ 29 ½ 39 ⅜ 27 ⅞ 24 ⅝ 70 21 ¼ 24 ⅞ 20 12 6 6 ⅞ 6 6 ⅞ 5
Heavy Duty Rotary Airlock Circular Inlet

All dimensions are in inches unless otherwise stated

SIZE A B C D E F G H J K L M N O P Q R S H.P.
2 2 6 ⅜ 2 ⅜ 4 ¾ * 3 ON APPLICATION
3 ½ 3 ⅜ 7 ½ ⅜ 3 ⅛ 6 ¼ * 4 ⅝ ON APPLICATION
5 5 9 ½ ½ 4 ¼ 8 ½ 7 ¾ 6 ¼ 9 ⅛ 16 8 ⅝ 7 28 5 ⅝ 8 ¹¹⁄₁₆ 7 ⅞ 8 7 ½
6 6 11 ¼ ½ 5 ½ 10 ⅝ 7 ⅛ 6 ⅞ 9 ¾ 16 9 ¼ 7 ⅝ 28 5 ⅝ 8 ⅞ 9 ½ 8 7 ½
8 8 12 ½ ½ 6 ¼ 12 ¼ 6 ⅛ 7 ⅞ 10 ¾ 16 10 ¼ 8 ⅝ 28 5 ⅝ 8 ¹¹⁄₁₆ 11 8 7 ½
10 10 14 ½ ⅝ 7 ⅞ 15 8 9 12 ¾ 18 ⅞ 11 ⅜ 9 ¾ 35 6 ⅛ 8 ¹¹⁄₁₆ 12 ⅝ 10 8 1
12 12 17 ⅜ ¾ 9 ½ 18 ⅜ 6 ¾ 10 ¼ 13 ⅞ 18 ⅞ 12 ⅝ 11 35 7 ¹¹⁄₁₈ 12 ⅞ 15 ½ 10 8 1
14 14 21 ¾ 10 ⅝ 20 ½ 6 ⅜ 10 ⅝ 14 ⅜ 20 ¼ 13 11 ¾ 35 8 ¹¹⁄₁₈ 12 ⅞ 17 ½ 10 8 1
16 16 21 ¼ ¾ 11 ⅞ 22 ⅞ 4 ⅜ 13 16 ¾ 24 ⅝ 15 ⅞ 13 ⅞ 50 9 ¼ 12 ⅞ 19 ½ 14 9 1 ½
18 18 25 ¾ 12 ⅝ 24 ⅝ 4 14 17 ¾ 24 ⅝ 16 ½ 14 ⅞ 50 11 ¼ 16 1 ¼ 22 ¾ 14 9 2
20 20 27 ½ ¾ 13 ⅜ 26 ⅜ 5 15 18 ¾ 27 ½ 17 ⅞ 15 ⅞ 50 11 ⅜ 20 1 ¼ 25 14 9 2
24 24 32 ¾ 15 ⅛ 30 5 17 20 ¾ 27 ½ 19 ¾ 17 ⅞ 50 13 ³⁄₁₆ 20 1 ⅜ 29 ½ 14 9 3
30 30 38 ¾ 1 19 ⅝ 39 ⅜ 2 19 ¾ 25 ½ 35 ⅞ 23 ⅞ 20 ½ 70 17 ¹¹⁄₁₈ 20 1 ⅜ 36 20 12 3