Choosing the right hydraulic motor for an auger involves balancing torque, speed, and compatibility with your hydraulic system. The following picks focus on reliable 4-bolt flange motors with standard 1″ shafts, commonly used in medium-duty augers, compressors, winches, and similar machinery. Each product highlights strong startup torque and dependable flow characteristics to help you move material efficiently.
Summary of Selected Products
| Brand | Model | Displacement | Shaft | Key Strength | |
|---|---|---|---|---|---|
| Buyers Products | CM004P | 3.1 CIR | 1″ round, 1/2″ NPT | 1/2″ NPT | High startup torque, medium-duty power |
| Buyers Products | CM034P | 7.3 CIR | 1″ round, 1/2″ NPT | 1/2″ NPT | Strong torque/flow balance |
| Buyers Products | CM074P | 19.2 CIR | 1″ round, 1/2″ NPT | 1/2″ NPT | Higher power for heavier auger tasks |
| JINHZIXIU | Char-Lynn 101-1001-009 | — | 1″ straight | — | High speed and torque, direct-use design |
| HIRINTOL | 101-1001-009 2.8 in³/r | 2.8 in³/r | 4-bolt STD | — | Compat with Eaton Char-Lynn H Series |
Buyers Products CM004P Hydraulic Motor

The CM004P is a 4-bolt flange hydraulic motor with a 1″ diameter round shaft and a 1/2″ NPT port. Its displacement of 3.1 cubic inches per revolution supports medium-duty auger setups, compressors, winches, cranes, and spreaders. It offers a reliable startup torque and an effective mix of torque and flow rate, helping to drive auger screws efficiently in a variety of soil and material conditions.
Buyers Products CM034P Hydraulic Motor

The CM034P expands displacement to 7.3 cubic inches per revolution while maintaining a 1″ round shaft and 1/2″ NPT port. This motor is well-suited for medium-duty auger tasks that require more torque at a given speed, including power-hungry attachments like auger drives or spreader mechanisms. It preserves strong startup torque and balanced torque-to-flow characteristics for predictable performance on varied soils.
Buyers Products CM074P Hydraulic Motor

The CM074P offers a high displacement of 19.2 cubic inches per revolution, making it a robust option for heavy-duty augers and demanding hydraulic tasks. It retains a 1″ diameter straight shaft with a 1/2″ NPT port and a 4-bolt mounting flange. This motor is designed to deliver strong torque across a wide range of operating conditions, ensuring reliable performance in challenging digging or material handling scenarios.
101-1001-009 2.8 in³/r Hydraulic Motor (Eaton/Hirintol Compatible)

Listed as a 2.8 in³/r 4-bolt STD motor, this unit is designed to be compatible with Eaton Char-Lynn H Series and similar configurations. It is positioned for compact, high-torque auger applications where space constraints demand a capable motor with reliable performance. The model emphasizes compatibility and straightforward installation, reducing the need for custom fittings in retrofit projects.
CM004PH 60324 Hydraulic Spinner Motor (Meyer Compatibility)

This spinner motor is compatible with Meyer hydraulic systems and features a 4-bolt flange mount with a 2.8 cubic inch displacement. It is designed for medium-duty tasks including auger feed or spinner-driven mechanisms, offering dependable performance with a 1″ shaft. It emphasizes compatibility across Meyer and related systems for retrofit installations.
SHONFYVS 4 Bolt Flange Hydraulic Motor

This 4-bolt flange motor features a robust build with a powder metallurgy valve disc and a high-strength output shaft. It emphasizes sealing and wear resistance, making it suitable for sustained auger operation where longevity and reduced maintenance are priorities. Precision in stator and rotor machining supports consistent performance over time.
Danson Pelpro Synchronous Auger Motor

Designed for synchronous operation, this Danson Pelpro motor is listed for a variety of auger and feed applications, aligning with 120V AC, 60Hz, Class B standards. It fits the needs of conveyors and augers requiring precise timing and dependable operation, offering a compact option for specific Pelpro and similar setups.
Buying Guide: Key Purchase Considerations
- <strongDisplacement and Torque: Higher cubic inch displacement generally yields greater torque at startup, which is critical for heavy auger loads. Match displacement to your required torque and speed range, considering the typical soil or material resistance you encounter.
- <strongShaft and Port Sizing: Ensure the 1″ shaft and 1/2″ NPT ports fit your existing hydraulic lines and connection hardware. Mismatches can require adapters or redesigned mounting.
- <strongMounting and Flange: A 4-bolt flange is standard for many auger drives. Confirm bolt circle geometry and compatibility with your mounting plate to avoid retrofits.
- <strongCompatibility: Some models are designed for direct replacement in Char-Lynn/Eaton configurations. Verify model compatibility with your motor’s brand family to simplify installation and service.
- <strongFlow and Pressure Range: Check your hydraulic system’s flow rate and pressure to select a motor that delivers efficient torque without overloading the pump. Consider system losses and thermal behavior under load.
- <strongRPM Performance: High-speed capabilities can improve auger feed rates, but excessive RPM may reduce torque. Balance speed with torque to suit the auger pitch and material.
- <strongDurability and Sealing: Look for multi-layer seals and wear-resistant materials if the motor operates in dusty or wet environments. Long-term reliability reduces maintenance downtime.
- <strongMounting Flexibility: Some motors offer direct-use designs or simple installation kits, which can reduce setup time in retrofit projects and maintain alignment with the auger shaft.
- <strongBrand and Support: Reputable brands often provide better warranties, parts availability, and technical support, which matters for field repairs and replacements.
- <strongCost of Ownership: Consider not only upfront price but also downtime, service intervals, and replacement parts when evaluating total cost of ownership over the motor’s life.