Modular P Series Planetary Gear Transmission for Versatile Mounting Positions

• Customization: Available
• Application: Motorcycle, Machinery, Agricultural Machinery
• Function: Change Drive Torque, Change Drive Direction, Speed Reduction
• Model NO.: P-series planetary gear reducer
• Layout: Cycloidal
• Hardness: Hardened Tooth Surface
• Installation: Horizontal Type
• Step: Double-Step
• Type: Planetary Gear Box
• Gear Material: Low Alloy Carburizing Steel
• Housing Material: Qt400-15
• Bearing Brand: German Imported Brands or Zwz
• Lubrication Form: Centralized Fuel Supply
• Transport Package: Packed in Wooden Cases
• Specification: 4000*4000*2000
• Trademark: Xinkai
• Origin: Pingyao
• HS Code: 8483402000
• Production Capacity: 1000 Units/Year
• Package Size: 150.00cm * 150.00cm * 140.00cm
• Package Gross Weight: 400.000kg

Product Description

P-series planetary gear reducer

The P-Series Planetary Gear Reducer stands as a benchmark for robust, reliable power transmission in the most demanding industrial environments. Engineered for exceptional durability and torque density, this heavy duty planetary gearbox utilizes a sophisticated multi-stage planetary gear train at its core. This advanced planetary gear transmission system distributes the load across multiple planet gears rotating around a central sun gear, housed within a robust ring gear. This fundamental design is the key to the unit's exceptional capabilities, enabling a high power-to-size ratio that is far superior to traditional gearbox designs.

It is specifically built to deliver high-torque output from a compact footprint. The P Series planetary gearbox excels in applications where space is constrained but performance cannot be compromised. Its inherent strength and precision make it the go-to industrial planetary gear reducer for industries such as mining, material handling, construction, and energy, where machinery faces continuous, high-load cycles.

One of the key features of the P-series gear reduction unit is its versatility in mounting. As a standard flange mounted planetary gearbox, it offers seamless and rigid integration with a wide array of prime movers, most commonly high-performance electric motors and hydraulic motors. This direct-flange connection ensures perfect alignment, maximizes torque transfer efficiency, minimizes vibration, and extends the service life of both the reducer and the connected equipment.

Ultimately, the planetary speed reducer from the P-series range is more than just a component; it is a complete P-series planetary gear transmission solution. It is designed to transform high input speeds into powerful, controlled low-speed, high-torque output. Whether driving a conveyor system, a large mixer, a crane hoist, or a drilling apparatus, this P-series planetary gear reducer guarantees consistent, dependable operation under extreme stress. 

Specification

P-series planetary gear reducer 

Model Series: P-series planetary gear reducer (P Series Planetary Gearbox
Type: Industrial planetary gear reducer, heavy duty planetary gearbox, high-torque P planetary reduce

Mounting Configuration: Flange mounted planetary gearbox, foot-mounted, shaft-mounted (customizable
Gear Arrangement: Planetary gear transmission (3-stage/2-stage/1-stage optional
Input Voltage/Phase: Compatible with 3-phase AC motors (220V/380V/415V, 50/60Hz
Input Speed Range: 500–3000 RPM (max input speed up to 6000 RPM for high-speed variants
Performance Parameter
Reduction Ratio: 3:1 – 1000:1 (single-stage: 3–10, two-stage: 10–100, three-stage: 100–1000
Nominal Torque Capacity: 50 N·m – 50,000 N·m (high-torque P planetary reducer up to 100,000 N·m
Transmission Efficiency: ≥95% (single-stage), ≥92% (two-stage), ≥88% (three-stage
Backlash: ≤3 arcmin (precision grade), ≤5 arcmin (standard grade), ≤8 arcmin (economic grade
Operating Temperature Range: -40°C to +120°C (with optional high-temperature lubrication
Noise Level: ≤75 dB(A) at full load (measured at 1m distance
Structural & Material Specification
Gear Material: High-strength alloy steel (20CrMnTi) with carburizing, quenching, and precision grindin
Housing Material: Die-cast aluminum alloy (for light-duty) / cast iron (HT250, for heavy duty planetary gearbox
Shaft Material: 40CrNiMoA alloy steel (heat-treated for wear resistance
Bearing Type: Precision tapered roller bearings / deep groove ball bearings
Lubrication: Synthetic gear oil (ISO VG 220/320), lifelong lubrication for sealed variants (re-lubrication optional for heavy-load use
Sealing: Double-lip oil seals + O-ring gaskets (IP65 protection class, IP67 optional
Dimensional & Installation Detail
Output Shaft Type: Solid shaft (keyway/flat key), hollow shaft (spline/involute spline
Shaft Diameter Range: 12mm – 100mm (output shaft), 10mm – 80mm (input shaft
Flange Standard: ISO 7005-1 (PN10/PN16), DIN 2501, or custom flange size
Weight Range: 8kg – 500kg (varies by torque capacity and configuration

Application Area	Key Requirements	P Series Advantages
Industrial Robotics	High precision, rigidity, compactness	Precision ground gears, high torque, modular design
CNC Machine Tools	High positioning accuracy, low backlash	High precision gearbox, low noise operation
Solar/Wind Energy Systems	High reliability, outdoor durability	Hardened gear teeth, multiple mounting options
Medical & Lab Equipment	Clean, quiet, precise motion	Low noise, customizable design, high precision
Logistics Automation	Reliable start-stop, speed control	High torque output, industrial transmission solutions
Food & Pharmaceutical	Hygienic design, smooth operation	Parallel shaft reducer, easy-clean configurations

Company Profile

Shanxi Pingyao Reducer Co., LTD.

Since 1958, Shanxi Pingyao Reducer Co., LTD., affectionately known as Shanxi Pingyao Reducer Factory, has been a trailblazer in the industrial arena. With a distinguished legacy in research, development, manufacturing, and sales, we have established ourselves as specialists in crafting an extensive range of reducers and electric rollers. Our commitment to unparalleled quality and innovation is evidenced by our prestigious certifications, including ISO9001 for impeccable quality management, ISO14001 for our proactive environmental preservation, and OHSAS18001, ensuring exceptional occupational health and safety standards. Our products proudly feature the esteemed American Association certification and the national mining products coal mine safety mark certification, underscoring our commitment to safety and reliability. As a key player in China's industrial sector and a beacon of innovation in Shanxi Province, our 'Xinkai' trademark is recognized as a China Famous Trademark, testifying to our relentless pursuit of excellence and pioneering spirit.

Possess strong production, manufacturing, and design capabilities.

Step into our spacious, well-equipped factory, and you'll witness firsthand our unmatched capabilities in manufacturing and designing top-tier reducers.
With advanced machining equipment, orderly production lines, and a team of skilled engineers and technicians, we excel in producing high-precision reducers like the Gear Box Reducer for Oil Pumping Unit and other industrial transmission solutions. Our facility is designed for efficiency—from raw material processing to final product assembly, every stage reflects our commitment to quality and scale.
Beyond manufacturing, our robust R&D team drives innovation. We continuously refine designs, develop new models, and customize solutions to meet diverse industrial needs, whether for standard series or bespoke reducer systems.
Choose us, and you're partnering with a factory that combines strong manufacturing prowess with cutting-edge design research—ensuring your operations get reliable, high-performance reducers every time.

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At Shanxi Pingyao Reducer Co., Ltd., we proudly uphold superior standards of quality control, ground-breaking product innovation, and unmatched after-sales support. Our unwavering dedication to scientific research drives us to continuously augment our capabilities and resources. We offer an extensive range of high-performance products, such as the extraordinary double arc herringbone gear reducer, along with the robust ZDY, ZLY, ZSY hard tooth surface cylindrical gear reducers, the innovative DBY, DCY conical cylindrical gear reducers, the efficient cycloidal pin wheel reducers, the advanced NGW planetary gear reducers, and the formidable JS mining high-power reducer. Our impressive portfolio features over 20 series and more than 3,000 meticulously engineered specifications, crafted to cater to a wide array of industry needs, including electric rollers.

FAQ

1. What is the warranty for the P-series planetary gear reducer
The P-series planetary gear reducer (including High-torque P planetary reducer, Heavy Duty Planetary Gearbox) comes with a 12-month quality guarantee from delivery. It covers manufacturing defects in materials/workmanship, excluding damage from improper installation, overload, or non-compliant maintenance. Extended warranties (up to 24 months) are available—contact sales for details

2. Is the P Series Planetary Gearbox customizable
Yes, customized production is offered for the P Series Planetary Gearbox, Flange Mounted Planetary Gearbox, and P-series gear reduction unit. Custom options: reduction ratios (3:1–1000:1), shaft sizes/forms (solid/hollow, keyway/spline), mounting configurations (flange/foot/shaft-mounted), material upgrades (corrosion-resistant steel), and extreme-temperature lubrication. Provide your technical specs for a tailored solution

3. How to select the right P-series industrial gear reducerFocus on 3 core factors:1,Match nominal torque to your equipment's operating torque (add 15–20% safety margin);2,Confirm reduction ratio based on motor input speed and desired output speed;3,Choose mounting type (Flange Mounted Planetary Gearbox/foot-mounted) and shaft config per space/connection needs. Our team can provide a selection guide with your equipment parameters

4. What maintenance does the P-series planetary gear transmission require
Low maintenance is required:1,Check lubricant levels every 6 months (5,000 operating hours) and replace every 20,000 hours (or for heavy loads);2, Inspect seals regularly to prevent leakage (IP65 standard);3,Clean the housing for heat dissipation;4,Avoid overload beyond rated torque. Sealed, lifelong-lubricated variants need no extra maintenance.