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China TBNⅡ Series Rack and Pinion Pneumatic Actuator - Reliable Suppliers & Factory for Valve Control Solutions
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TBNII pneumatic actuator
TBNII pneumatic actuator

China TBNⅡ Series Rack and Pinion Pneumatic Actuator - Reliable Suppliers & Factory for Valve Control Solutions

The TBNⅡ series rack and pinion pneumatic actuator is a high-performance device driven by compressed air, facilitating seamless linear motion through its piston rack that engages the gear transmission of the output shaft. This innovative pneumatic actuator provides reliable angular stroke output and is available in both double-acting and single-acting configurations. Widely utilized in the switching and adjustment of quarter-turn valves like ball valves, butterfly valves, and plug valves, it is also suitable for a variety of rotary applications. As a leading manufacturer in China, our factory specializes in producing top-quality pneumatic actuators designed to meet the diverse needs of industries worldwide. When searching for trusted suppliers of advanced actuator solutions, look no further than our esteemed factory for exceptional products and service
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    Product Detail

    TBN series rack and pinion pneumatic actuator69m1
    • 1Extruded aluminium body, with both internal and external hard anodized corrosion protection having honed cylinder surface for longer life and lower coefficient of friction.
    • 2Dual piston rack and pinion design for compact construction, symmetric mounting position, high cycle life and fast operation, reverse rotation can be accomplished in the field by simply inverting the pistons.
    • 3One-piece gear output shaft, with nickel plated, long service life. And can be customized size and stainless steel material as option.
    • 4Die-cast aluminum alloy end caps, epoxy coated with high anti-corrosion performance. Can be customized various colors or PTFE coating.
    • 5Two independent external travel stop adjustments. Permits an easy and precise adjustment of +/-5° in both directions, in the open and close positions for an accurate valve alignment.
    • 6Selected high quality bearings and seal for low friction, high cycle life and a wide operating temperature range.
    • 7Modular preloaded spring cartridge design. With coated spring for simple versatile range, greater safety and corrosion resistance.
    • 8Internal and external stainless steel fasteners for long term corrosion resistance.
    • 9ISO 5211, DIN 3337 and VDI/VDE 3845 NAMUR: Full conformance to the latest specifications: ISO 5211, DIN 3337 and VDI/VDE 3845 NAMUR for product interchangeability and easy mounting of solenoids, limit switches and other accessories.
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    NO. Description Qty Material Treatment
    1 Body 1 Aluminium Alloy Anodized Oxygenation
    2 Pinion 1 Alloy Steel Nickel Plated
    3 Bearing(Lower Pinion) 1 SEE
    4 O-Ring(Lower Pinion) 1 NBR
    5 O-Ring(Top Pinion) 1 NBR
    6 Bearing(Top Pinion) 1 SEE
    7 Spacer 1 Alloy Steel
    8 Thrust Bearing Pinion 1 SEE
    9 Thrust Bearing Pinion 1 SEE
    10 Thrust Washer(Pinion) 1 Stainless Steel
    11 Spring Clip 1 Stainless Steel
    12 Piston 2 Alloy Steel Hard Anodized
    13 Guide Ring(Piston) 2 SEE
    14 O-Ring(Piston) 2 NBR
    15 BearingRing(Piston) 2 SEE
    16 Adjusting Screw 2 Stainless Steel
    17 Adjusting Nut 2 Stainless Steel
    18 Washer(Adjusting Screw) 2 Stainless Steel
    19 O-Ring(Adjusting Screw) 2 NBR
    20 Plug 2 NBR
    21 Spring 4~12 Spring steel Zinc Phosphate Coated
    22 End Cap 2 Alloy Steel Epoxy Coated
    23 Adjusting Screw(End Cap) 2 Stainless Steel
    24 Adjusting Nut(End Cap) 2 Stainless Steel
    25 O-Ring(End Cap) 2 NBR
    26 Bolts(End Cap) 8 Stainless Steel
    27 Indicator 1 Engineering Plastics
    28 Nut(Indicator) 1 Engineering Plastics
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    Model A B C D AND F G H I J K L M N THE Air
    TBNII032 111 46 52 66 21 31 14 50 25 / F03Ф36 / M5X8 9 40 G1/8
    TBNII052 154 74 45 99 30 47 14 80 30 F05F50 F03Ф36 M6X11 M5X10 11 40 G1/4
    TBNII063 173 88 50 113 36 54 18 80 30 F07F70 F05F50 M8X14 M6X11 14 40 G1/4
    TBNII075 190 100 55 125 42 60 20 80 30 F07F70 F05F50 M8X14 M6X11 14 40 G1/4
    TBNII083 208 109 60 134 46 65 20 80 30 F07F70 F05F50 M8X14 M6X11 17 40 G1/4
    TBNII092 254 120 70 145 51 70 22 80 30 F07F70 F05F50 M8X14 M6X11 17 40 G1/4
    TBNII105 282 135 70 160 58 76 24 80 30 F10Ф102 F07F70 M10X18 M8X14 22 40 G1/4
    TBNII125 312 155 80 182 68 87 28 80 30 F10Ф102 F07F70 M10X18 M8X14 22 65 G1/4
    TBNII140 380 178 95 205 76 96 32 80 30 F12Ф125 F10Ф102 M12X22 M10X18 27 65 G1/4
    TBNII160 426 197 100 224 87 107 34 80 30 F12Ф125 F10Ф102 M12X22 M10X18 27 65 G1/4
    TBNII190 484 235 125 275 103 126 40 130 30 F14Ф140 / M16X23 / 36 78 G1/4
    TBNII210 532 260 130 300 113 137 40 130 30 F14Ф140 / M16X25 / 36 78 G1/4
    TBNII240 610 292 145 330 146 158 50 130 30 F16Ф165 / M20X28 / 46 78 G1/2(1/4)
    TBNII270 704 330 170 370 165 175 57 130 30 F16Ф165 / M20X28 / 46 78 G1/2
    TBNII300 782 352 308 385 160 170 50 130 30 F16Ф165 / M20X25 / 46 80 G1/2
    TBNII350 920 410 362 440 190 195 50 130 30 F25F254 F16Ф165 M16X24 M20X25 55 80 G1/2
    TBNII400 935 460 446 494 260 260 60 130 30 F25F254 F16Ф165 M16X24 M20X25 55 80 G1/2
    Output Torque of Air Supply(bar) Output Torque of Spring
    Air pressure 3 4 5 6 7 Spring
    Model spring quantity 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90°
    Origin End Origin End Origin End Origin End Origin End Origin End
    TBNII052S 5 8.2 5.6 12.1 9.4 3.7 6.0
    6 7.4 4.4 11.4 8.2 4.4 7.1
    7 6.7 3.2 10.6 7.0 5.2 8.3
    8 9.9 5.9 13.9 9.7 5.9 9.5
    9 9.2 4.7 13.1 8.5 6.6 10.7
    10 8.4 3.5 12.4 7.3 16.3 11.2 7.4 11.9
    11 11.6 6.1 15.6 10.0 19.6 13.8 8.1 13.1
    12 10.9 4.9 14.9 8.8 18.8 12.6 8.9 14.3

    Weight table

    Model TBN032 TBN052 TBN063 TBN075 TBN083 TBN092 TBN105 TBN125 TBN140 TBN160 TBN190 TBN210 TBN240 TBN270 TBN300 TBN350 TBN400
    YES(kg) 0.61 1.38 2.01 2.54 3.13 4.7 6.22 8.95 14 17.6 29.3 39.5 51.5 79 100.6 160 197.3
    SR(kg) 1.518 2.19 2.83 3.53 5.31 7.08 10.36 16.1 20.87 36.51 48.5 66 95.5 128.2 209.2 243

    Air consumption

    Model TBN032 TBN052 TBN063 TBN075 TBN083 TBN092 TBN105 TBN125 TBN140 TBN160 TBN190 TBN210 TBN240 TBN270 TBN300 TBN350 TBN400
    OPN(L) 0.04 0.09 0.16 0.26 0.31 0.50 0.70 1.3 2 3 4.8 6.6 10.5 14.8 23.8 35.1 52.6
    CL(L) 0.04 0.17 0.28 0.44 0.60 0.89 1.3 2.1 3.2 4.8 8.2 10.4 16.7 24.1 29.7 46.3 56
    TBNⅡbc9

    Dual Action

    Dual Action Step 1
    Step 01

    1. Air from Port A forces the pistons outwards, causing the springs to compress, the pinion turns counter-clockwise to open the valve while air is being exhausted from Port B.

    Dual Action Step 2
    Step 02

    2. Air from Port B forces the pistons inwards causing the springs to compress, the pinion turns clockwise to close the valve while air is being exhausted from Port A.

    SPRING RETURN(FC)

    Spring Return FC Step 1
    Step 01

    1. Air from Port A forces the pistons outwards causing the springs to compress, the pinion turns counter-clockwise to open the valve while air is being exhausted from Port B.

    Spring Return FC Step 2
    Step 02

    2. In case of air or power disruption, the rebound of springs forces the pistons inwards, the pinion turns clockwise to close the valve while air is being exhausted from Port A. Air from Port B can accelerate the close of the valve.

    SPRING RETURN(FO)

    Spring Return FO Step 1
    Step 01

    1. Air from Port A forces the pistons outwards causing the springs to compress, the pinion turns clockwise to close the valve while air is being exhausted from Port B.

    Spring Return FO Step 2
    Step 02

    2. In case of air or power disruption, the rebound of springs forces the pistons inwards, the pinion turns counter-clockwise to open the valve while air is being exhausted from Port A. Air from Port B can accelerate the open of the valve.

    Frequently Asked Questions (FAQ)

    What are the primary design features of the TBN series pneumatic actuator?
    The TBN series features a hard-anodized extruded aluminum body for corrosion protection, a dual-piston rack and pinion design for compact and symmetric mounting, a one-piece nickel-plated gear output shaft, and two independent external travel stops enabling +/-5° adjustment in both open and close positions.
    How does the travel stop adjustment work on these actuators?
    It features two independent external travel stop adjusting screws. These allow a precise adjustment of +/-5° in both open and closed directions, ensuring accurate valve alignment and preventing leakage or flow restrictions.
    What international mounting standards do TBN actuators comply with?
    TBN actuators fully conform to ISO 5211, DIN 3337, and VDI/VDE 3845 NAMUR specifications. This ensures universal product interchangeability and allows easy direct mounting of solenoids, limit switch boxes, positioners, and other accessories.
    Can the rotation direction of the TBN series actuator be reversed in the field?
    Yes, the dual-piston rack and pinion design allows reverse rotation to be easily accomplished directly in the field by simply inverting the pistons within the actuator body.
    What is the difference between Spring Return FC and Spring Return FO configurations?
    Spring Return Fail Closed (FC) uses air pressure to open the valve and spring force to close it automatically upon loss of power or air pressure. Spring Return Fail Open (FO) uses air pressure to close the valve and spring force to open it under fail-safe conditions.