Denison Vane Pump T6CC

The T6CC belongs to the Denison T6 series of fixed-displacement vane pumps. Its key feature is a double pump structure, meaning two independent pumping sections share a common housing and drive shaft. This allows the pump to supply two hydraulic circuits simultaneously, improving system efficiency and simplifying hydraulic circuit design.

Denison T6CC vane pump has become a widely recognized solution for medium- and high-pressure industrial applications. Known for its double-pump configuration, stable flow output, and low noise operation, the T6CC series has been used for decades in equipment such as injection molding machines, presses, construction machinery, and marine hydraulic systems.

What Is the Denison Vane Pump T6CC?

The Denison T6CC vane pump is a fixed-displacement double vane hydraulic pump designed for industrial and mobile hydraulic systems that require stable flow, relatively high pressure, and reliable long-term operation. It belongs to the well-known Denison T6 series, which is widely used in heavy machinery, manufacturing equipment, and mobile hydraulic systems.

Unlike single vane pumps, the T6CC uses a double-pump configuration, meaning it integrates two pumping sections inside one housing. These two sections share a common drive shaft but can provide two independent hydraulic flows. This design makes it possible to power different hydraulic circuits simultaneously while reducing installation space and system complexity.

In practical hydraulic systems, this dual-flow capability is extremely valuable. For example, in an injection molding machine, one pump section can supply oil to the clamping system, while the other section powers the injection unit. Using a single double pump instead of two separate pumps simplifies the hydraulic layout and reduces maintenance requirements.

Key Technical Specifications

The T6CC series is designed for medium-to-high pressure hydraulic systems and has specifications that make it suitable for demanding industrial environments.

Internal Structure of the T6CC Vane Pump

The Denison T6CC vane pump uses a balanced vane structure and modular cartridge design, which are key reasons for its reliability and long service life in industrial hydraulic systems. The pump is composed of several core components that work together to generate hydraulic flow.

Main Components

During operation, the rotor rotates with the shaft while the vanes slide outward and maintain contact with the cam ring. The eccentric cam ring creates chambers that expand to draw oil in and contract to discharge it, producing continuous hydraulic flow.

Cartridge Design Advantage

A major feature of the T6CC pump is its replaceable cartridge kit, which includes the cam ring, rotor, vanes, and side plates. This cartridge can be replaced without removing the entire pump from the machine, making maintenance faster and reducing downtime.

Because of the balanced pin-vane design, hydraulic pressure acts evenly on the vanes, reducing vibration, noise, and internal wear while improving volumetric efficiency.

T6CC Model Code Explained

A typical model number looks like this:

T6CC-017-008-1R00-C100

Although it appears complicated, the code actually follows a clear structure used across the Denison T6 series.

Basic Model Structure

The first two sections (T6CC) identify the pump type. “T6” represents the Denison vane pump series, while “CC” indicates a double-pump configuration within that series.

Displacement Codes (P1 and P2)

The numbers such as 003, 005, 008, 010, 017, 025, 031 represent cam-ring sizes that correspond to the pump’s theoretical displacement in ml/rev.

For example:

T6CC-017-008

• P1 = 58.3 ml/rev

• P2 = 26.4 ml/rev

This combination allows the pump to deliver two different flow outputs from one housing, which is ideal for machines with multiple hydraulic circuits.

Shaft and Rotation Codes

These parameters must match the motor drive and installation requirements of the hydraulic system.

Hydraulic Pump Comparison: Gear vs. Vane (T6CC) vs. Piston

Below is a professional comparison table summarizing the main differences between gear pumps, vane pumps like the T6CC, and piston pumps. This table helps you quickly understand how these pump types perform and where T6CC vane pumps fit best in real applications.

Applications of the Denison T6CC Pump

The Denison T6CC vane pump is widely used across a range of industrial and mobile hydraulic systems where reliable flow, dual circuits, and low noise are important. Its double‑pump design makes it particularly effective in machines that need two simultaneous hydraulic outputs or combined high/low flow functions from a single unit.

Typical Application Scenarios

1. Injection Molding & Plastic Machinery

In injection molding equipment, different hydraulic circuits are used for clamping, injection, and ejection actions. The T6CC’s dual sections allow two flows with different demands to be supplied simultaneously, improving machine performance and reducing the need for multiple pumps.

2. Metal Forming & Presses

Hydraulic presses, bending machines, and metal forming lines often require consistent pressure and stable flow under heavy loads. The balanced design of the T6CC helps maintain performance with low vibration and extended service life.

3. General Industrial Hydraulics

Applications such as machine tools, lifts, conveyors, and factory automation systems benefit from the T6CC’s smooth flow and modular maintenance. Because replacement cartridges are available, maintenance can be done quickly with minimal downtime.

4. Mobile & Off‑Road Equipment

Although more common in industrial settings, T6CC variants are also used in some mobile equipment hydraulics, such as cranes, agricultural machines, and utility vehicles — especially where dual flow outputs and reduced noise are priorities.

Common Problems and Troubleshooting

Common Symptoms & Causes

1. Low Flow or Low Pressure

• Causes: Air in the suction line, blocked filters, or insufficient inlet pressure can lead to inadequate flow or pressure.

• Troubleshooting:

  • Check suction line seals and connections for air leaks.

  • Verify the filter isn’t clogged and the oil level is correct.

  • Confirm inlet line is sized correctly and free of restrictions.

2. No Flow at All

• Causes: Pump not rotating, incorrect rotation direction, or closed inlet valve.

• Troubleshooting:

  • Ensure the drive motor is turning the pump.

  • Confirm rotation matches the pump’s marked direction.

  • Inspect the inlet valve and suction path for obstructions.

3. Excessive Noise or Vibration

• Causes: Cavitation (caused by poor inlet conditions), misalignment, fluid contamination, or worn internal parts.

• Troubleshooting:

  • Improve inlet conditions (increase suction pressure, eliminate air).

  • Check pump alignment and mounting.

  • Inspect fluid cleanliness and change filters if needed.

4. Overheating

• Causes: Too high pressure or speed, excessive internal leakage, or incorrect oil viscosity.

• Troubleshooting:

  • Lower operating speed or system pressure.

  • Confirm recommended oil viscosity and temperature ranges are maintained.

  • Inspect for worn cartridges or seals that increase internal friction.

5. Shaft or Seal Leakage

• Causes: Worn seals, damaged shaft surfaces, or improper seal installation.

• Troubleshooting:

  • Replace worn seals with correct parts.

  • Check the shaft for damage and ensure proper seal orientation.

How to Choose the Right T6CC Pump

1. Required Flow & Displacement

Your system’s flow demand (L/min or GPM) determines the pump displacement you need. T6CC cam ring options range from 10.8 ml/rev up to 100 ml/rev, and combinations of front & rear sections let you tailor the total output to your application. Higher displacement increases flow but also requires more driving power.

2. Operating Pressure

Check your system’s maximum pressure. The T6CC series can handle up to ≈275 bar continuous pressure, making it suitable for many industrial applications. Exceeding this rating risks internal leakage and reduced life.

3. Operating Speed

Ensure the pump will run at the drive motor’s RPM. T6CC is typically rated for 600–2800 rpm, but specific cam ring sizes and fluid viscosity can affect performance.

4. Shaft & Mounting Compatibility

Confirm that the pump’s shaft type (keyed or splined) and mounting flange match your drive and installation. Incorrect shaft or flange selection can result in alignment problems and premature wear.

5. Fluid Compatibility & Filtration

Choose a pump design compatible with your fluid type (mineral oil, fire‑resistant fluids, etc.). Because vane pumps are sensitive to contamination, maintain proper filtration to extend service life.

FAQ About Denison T6CC Vane Pumps

1. What is the maximum operating pressure for the T6CC pump?

The T6CC series is engineered for medium‑to‑high pressure hydraulic systems, with continuous pressure up to about 240 bar (3480 psi) and intermittent peaks up to around 275 bar (4060 psi).

2. What fluids can the T6CC pump handle?

T6CC vane pumps are compatible with a range of hydraulic fluids including standard mineral oils, fire‑resistant fluids, and some biodegradable oils. They perform well within a viscosity range of roughly 10–860 cSt (optimal at 30–140 cSt).

3. How do I know what model code to choose?

The model code (e.g., T6CC‑017‑008‑1R00‑C100) tells you the displacement of both pump sections (P1 and P2), shaft type, rotation direction (R for clockwise, L for counterclockwise), and port/connection options. Understanding this helps ensure correct flow output and mechanical fit.

4. Can the T6CC be used in mobile hydraulic systems?

While typically used in industrial settings, T6CC variants such as T6CCM or T6CCP can be configured for mobile hydraulic applications where dual‑circuit outputs and rugged performance are needed.

5. How do I address noise or cavitation issues?

Noise or cavitation often results from poor inlet conditions (air in suction line, too small suction hose) or contamination. Ensure proper system bleed‑down, adequate suction pipe size, and good filtration to minimize these issues. (This insight is also commonly cited in industry troubleshooting practices.)

Conclusion & Call to Action

The Denison T6CC vane pump remains one of the most versatile and reliable choices for industrial hydraulic systems that demand dual flow outputs, stable pressure, and smooth operation. Its double‑pump design with modular cartridge construction makes it especially suitable for machines requiring two independent circuits or varied flow rates, such as injection molding equipment, presses, and automated factory systems.

Across its wide range of cam‑ring displacement options and port configurations, the T6CC series offers flexibility for many hydraulic configurations without the noise levels typical of simpler gear pumps. Its operating range – from low to medium‑high pressure within 600–2800 rpm – aligns with many industrial applications where efficiency and consistency matter most.

At Poocca Hydraulic Manufacturer, with more than 20 years in the hydraulic pump industry, we specialize in OEM and aftermarket Denison T6CC pumps, cartridge kits, and full technical support to ensure you get the best‑fit solution for your application. Contact us for expert consultation, accurate model matching, and competitive pricing so you can confidently choose the proper T6CC pump for your system and get back to running your machinery with optimal performance.

Poocca offers T6CC series pumps with multiple displacement combinations that match those used in industry standards. The Denison T6CC series itself spans combinations from small dual low‑flow units to larger high‑flow variants by mixing cam ring sizes (for example, a 34.1 ml/rev front section with a 79.3 ml/rev rear section) to suit unique flow and pressure objectives.