Puyang Zhongshi Group Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 500 |
| Delivery Time | 30 days |
| Packaging Details | Steel frame |
| Brand Name | ZS |
| Model Number | 324D |
| Certification | API |
| Place of Origin | China |
View Detail Information
Explore similar products
API 11AX Stainless Steel Valve Ball And Seat With High Quality
OEM Oilfield Pump Parts Heavy Wall Barrel Stainless Steel Valve Ball Pump
API Oilfield Pump Parts Tubing Pump Barrel With Length 8-30ft Plunger Length 2
Oilfield Plunger Pump Parts Valve Balls Valve Seats With High Compressive
Product Specification
| Payment Terms | T/T | Supply Ability | 500 |
| Delivery Time | 30 days | Packaging Details | Steel frame |
| Brand Name | ZS | Model Number | 324D |
| Certification | API | Place of Origin | China |
| High Light | heavy duty gear reducer for oilfield pumps ，high torque gear reducer for beam pumping units ，smooth power transmission gear reducer | ||
Oilfield Pumping Unit Gear Reducer (Gearbox)
This heavy-duty gear reducer is designed for beam pumping units in oilfield applications. It reduces the motor speed to drive the crank mechanism, converting rotary motion into reciprocating beam movement for oil extraction. It meets API Spec 11E standards and is built for long-term, high-load operation in harsh environments.
| Parameter | Standard Range | Notes |
|---|---|---|
| Applicable Standard | API Spec 11E, SY/T 5044 | Compliant with oilfield pumping unit standards |
| Model Series | JLH / CJH / API Standard (e.g., 320, 456, 640, 800, 1280) | Matches CYJ/CYJY pumping unit series |
| Rated Output Torque | 6.5–89 kN·m (5,000–65,000 ft-lbs) | Depends on model (common: 9, 13, 18, 26, 37, 48 kN·m) |
| Transmission Ratio | 25–35:1 | Typical ratios for pumping units: 31.73, 30.56, 29.3 |
| Input Speed | 750–1500 RPM | Matches standard electric motor speeds |
| Output Speed | 20–60 RPM | Adjusts pumping unit stroke frequency |
| Gear Type | Double helical (herringbone) or helical gears | Smooth, high-efficiency power transmission |
| Gear Material | 20CrMnTi alloy steel, case-hardened | Surface hardness: HRC 58–62 |
| Housing Material | Cast iron (HT200/HT250) | High rigidity and vibration resistance |
| Lubrication | Splash lubrication with gear oil (ISO VG 150/220) | Oil bath system for continuous gear lubrication |
| Brake Type | Band brake / shoe brake | For controlled stopping and holding under load |
| Operating Temperature | -40°C ~ +55°C | Adaptable to extreme oilfield climates |
| Mounting Style | Horizontal base-mounted | Compatible with standard pumping unit frames |
Working Principle
1. Power Input: The electric motor drives the reducer input shaft via a V-belt pulley.
2. Speed Reduction: Multiple stages of helical gears reduce the input speed while multiplying torque.
3. Torque Output: The low-speed, high-torque output shaft drives the pumping unit crank.
4. Motion Conversion: The crank converts rotary motion into reciprocating beam movement, powering the sucker rod string.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
1997
Total Annual:
5 million-10 million
Employee Number:
570~600
Ecer Certification：
Verified Supplier
Puyang Zhongshi Group Co., Ltd., restructured from SINOPEC in 1997 has 20 years experience on manufacturing petroleum machinery products . The company registered capital is 10 million U.S. dollars, with annual export 30 million U.S. Dollars. We have competitive price of o... Puyang Zhongshi Group Co., Ltd., restructured from SINOPEC in 1997 has 20 years experience on manufacturing petroleum machinery products . The company registered capital is 10 million U.S. dollars, with annual export 30 million U.S. Dollars. We have competitive price of o...
Get in touch with us
Leave a Message, we will call you back quickly!