Replace Denison type VELJAN type high pressure motor M4D/M4D1-062/074/088/102/113/128/138-3N00-B502 hydraulic vane motor

Module A - 100% Drop-in Replacement, Zero Risk

Stop worrying about compatibility. Our M4D & M4D1 series vane motors are engineered as 100% drop-in replacements for original Denison and Veljan units. They match the original mounting, porting, and performance specs perfectly—meaning you can install them directly without any piping modifications or system adjustments.

Module B - Technical Specifications

Module C - Why Choose Our Factory-Direct Supply?

• Precision Manufacturing: Produced in our Foshan facility using advanced CNC machining centers to ensure micron-level tolerances for every internal component.

• Rigorous Quality Control: Every unit undergoes a 100% Full-load performance test on our professional testing bench before shipment to ensure it handles peak pressures without leakage.

• Direct Reliability: As a "Direct Factory" with 9+ years of experience, we eliminate the middleman, offering you OEM-quality at a fraction of the original brand's lead time and cost.

Module D - Expert Maintenance Tips for Longevity

To protect your investment and prevent the "Sandpaper Effect" (where microscopic metallic debris acts as an abrasive, destroying internal vanes and plates), our experts strongly recommend:

• Perform a complete hydraulic system flush before installation.

• Replace your old filter with a new 10-micron absolute return filter to ensure oil purity.

FAQ

Q1: Can I really replace my original Denison M4D motor with your product without any modifications?

• Answer: Absolutely. Our M4D and M4D1 series are designed with 100% interchangeability in mind. All mounting dimensions, shafts, and port sizes (SAE or Metric) are identical to the original brand, ensuring a seamless "drop-in" replacement that requires zero changes to your existing hydraulic piping.

Q2: What is your typical delivery time for the M4D series?

• Answer: We understand that downtime costs money. As a direct manufacturer in Foshan, we maintain a large stock of finished units and cartridge kits for the M4D series. Standard orders are typically dispatched within 24-48 hours, ensuring Fast Global Delivery to get your machinery back in operation quickly.

Q3: How do I decide between a standard V-Series and an SQP-Series pump for my system?

• Answer: The choice depends on your environment. The standard V-Series is a robust workhorse for general industrial and mobile use. However, if your equipment operates in a noise-sensitive environment (like an indoor injection molding plant), we recommend the SQP-Series. The SQP features specialized timing grooves that significantly reduce pressure pulsation and lower noise levels below 70 dB.