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ZQ JZQ Reducer.jpg

China ZQ, JZQ Cylindrical Gearbox Speed Reducers - Top Suppliers and Factory for Industrial Applications

Introducing the ZQ and JZQ cylindrical gear reducers, expertly crafted industrial speed reduction devices from reputable China suppliers. These robust reducers are widely used across various sectors, including lifting, mining, chemical engineering, textiles, and light industry, Engineered with a reliable two-stage transmission structure, our gear reducers offer nine assembly types to cater to diverse industrial needs. The input shaft features a conical design, while the output shaft is available in three configurations: cylindrical (Z type), gear type (CA/C type), and European coupling (F type). With a standard transmission ratio ranging from 48.57 to 8.23, our products are designed for optimal performance. For those requiring an even greater reduction, our extended model can achieve a remarkable transmission ratio of up to 317.28 by incorporating a high-speed stage, As a leading factory in the industry, we are committed to providing top-quality gear reducers that meet the demands of your business
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    Product Details

    Product Features
    1
    The reducer is used for both forward and reverse operation.
    2
    The reducer has nine types of transmission ratios, nine configuration types and three low-speed shaft types.
    3
    The transmission ratios of this type of reducer are:
    Standard 48.57  |  40.17  |  31.5  |  23.34  |  20.49  |  15.75  |  12.64  |  10.35  |  8.23
    4
    The extended model can achieve a larger transmission ratio by adding a high-speed stage:
    Extended 317.28  |  291.19  |  243.86  |  223.80  |  191.22  |  163.38  |  141.73  |  121.10  |  92.21  |  81.70  |  65.54
    Conditions of Use
    ⚙️
    The circumferential speed of the gear transmission in the reducer shall not exceed 10 meters per second.
    🔄
    The rotational speed of the high-speed shaft shall not exceed 1,500 revolutions per minute.
    🌡️
    Working environment temperature ranges from -40℃ to +40℃.
    Maintenance
    • 1
      Regularly Check the Oil Level
      Check the oil level once a month or every 500 hours of operation to ensure it is within the specified range.
    • 2
      Regularly Change the Lubricating Oil
      • (1) First Oil Change: Carry out the first oil change 36 hours after the first operation to remove metal shavings produced during the running-in period.
      • (2) Subsequent Changes: Replace lubricating oil every 2,000–5,000 hours or every 6–12 months. In harsh environments (high temperatures, heavy dust, continuous heavy loads), shorten the oil change cycle.
      • (3) Oil Change Method: While the reducer is still warm (lubricating oil has good fluidity), drain the old oil and add new oil to the specified level.
    • 3
      Keep Clean & Ensure Vent Cap Is Unobstructed
      Regularly clean oil stains and dust from the reducer surface. Inspect and clean the vent cap to prevent blockage.
    • 4
      Fastening Inspection
      Regularly check whether all installation bolts and connecting parts are loose.
    • 5
      Abnormal Situation Handling
      ⚠️ If a sudden increase in noise, intensified vibration, abnormal temperature rise, or severe oil leakage is detected, stop the machine immediately for inspection. Operation can only resume after the fault has been eliminated.
    Detail Pictures
    ZQ JZQ Reducer (1)
    ZQ JZQ Reducer (2)
    ZQ JZQ Reducer (3)
    Frequently Asked Questions (FAQ)
    Q What transmission ratios are available for the ZQ/JZQ reducer?
    The standard model offers nine transmission ratios: 48.57, 40.17, 31.5, 23.34, 20.49, 15.75, 12.64, 10.35, and 8.23. The extended model adds a high-speed stage to achieve larger ratios ranging from 65.54 up to 317.28.
    Q Can the ZQ/JZQ reducer be used for both forward and reverse operation?
    Yes. The ZQ/JZQ reducer is designed to support both forward and reverse operation, making it suitable for a wide range of industrial applications.
    Q What is the maximum allowable rotational speed for the high-speed shaft?
    The rotational speed of the high-speed shaft must not exceed 1,500 revolutions per minute (RPM). Exceeding this limit may result in accelerated wear or equipment damage.
    Q What is the recommended operating temperature range for the reducer?
    The working environment temperature for the ZQ/JZQ reducer ranges from -40℃ to +40℃. Operating outside this range may affect lubricant performance and the service life of the unit.
    Q How often should the lubricating oil be changed?
    The first oil change should be performed 36 hours after initial operation. Subsequent oil changes are recommended every 2,000–5,000 operating hours or every 6–12 months. In harsh environments such as high temperatures, heavy dust, or continuous heavy loads, the oil change interval should be shortened accordingly.
    Q What should I do if the reducer shows abnormal noise, vibration, or oil leakage during operation?
    If any abnormal symptoms are detected — including sudden noise increase, intensified vibration, unusual temperature rise, or severe oil leakage — stop the machine immediately and conduct a thorough inspection. Do not resume operation until the root cause has been identified and the fault fully resolved.

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