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MENWO MR85 Transmission Power Take-Offs (PTOs) MR85QZ MR85ZA

MENWO MR85 Transmission Power Take-Offs (PTOs)
MR85QZ MR85ZA
Price: $ 500
Discount Price: $ 250
Availability:
Quantity:

  • MR85QZ MR85ZA

  • Shanghai, China

  • T/T , Paypal , Union

  • Carton

  • 1 Ask for discount

 MENWO MR85 Transmission Power Take-Offs (PTOs) MR85QZ

The MR85 (commonly known as Menwo ) is a 5-speed manual transmission. It is widely applied in light trucks and dump trucks (such as Foton, Kaima, FAW, Dongfeng), and compatible with PTO-driven equipment including hydraulic dump systems and water sprinkler trucks.
  • Brand: Mengwo / WLY

  • Gear configuration: 5 forward gears + 1 reverse gear

  • Max input torque: Approximately 280N·m

  • Applicable models: Aoling, Yuejin, Wangpai, Hongta, FAW and other light trucks

2. Core Parameters of MR85 Power Take-Off (PTO)

2.1 Model & Structure

  • Compatible models: MR85BH, MT85-27 (single helical 27-tooth), MR85 dedicated pneumatic / manual control PTO

  • Mounting position: Right / left PTO opening of the transmission (side-mounted, power taken from countershaft)

  • Output type: 6-spline shaft output or flange output, compatible with hydraulic pump interface

  • Number of teeth / Gear ratio: Standard 27 teeth, gear ratio approx. 1.0~1.2 (matching engine speed)

2.2 Key Specifications

  • Rated torque: ≥200N·m (matched with output capacity of MR85 transmission)

  • Control mode: Pneumatic (mainstream) / Manual, controlled by cab switch

  • Application condition: Stationary PTO (neutral gear) / Driving PTO (1st–2nd gear); suitable for dump lift pumps and sprinkler pumps

  • Gear material: Alloy steel precision ground gear, wear-resistant and low noise

3. Working Principle

The PTO meshes with the countershaft gear of the MR85 transmission and is installed at the side PTO opening.
Pneumatic control logic:
Cab control switch → Solenoid valve → Compressed air pushes cylinder → Gear meshing engagement; power is output from the transmission countershaft to the hydraulic pump.
Gear ratio matching formula:
PTO gear ratio × Transmission gear ratio = Pump rotational speed 

4. Installation & Matching Key Points

  • Mounting position: Prioritize the right-side PTO port (sufficient installation space); left-side option available for partial vehicle models.

  • Hydraulic pump matching: Adopt 6-spline / flange interface; working pressure ≤16MPa, flow rate ≤50L/min (suitable for light truck dump applications).

  • Control system: Pneumatic type is commonly used for light trucks (connected to vehicle air storage cylinder), equipped with PTO control switch and indicator light.

  • Gear ratio selection:

    • High speed: Ratio 0.9~1.0 (high pump speed, for sprinkler operation)

    • Low speed & high torque: Ratio 1.1~1.2 (high torque, for dump lifting operation)

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