T7DS-B35 Parker Denison Vane Pump 113.4 ml/r 280 bar

Product Overview

The T7 / T6 / T7B / T7D / T7E / T7BB / T7DB / T7ED / T7EE / T6C / T6D / T6E / T6CM / T6DM / T6EM / T6CP / T6DP / T6EP series (including T7DS B35 3R00 A1M0) are Parker Denison high-pressure fixed-displacement vane pumps. These units feature advanced cartridge design with hydraulic balancing for high-pressure capability, low noise and long service life. Manufactured to exact original geometric tolerances, they offer true drop-in interchangeability—matching mounting flanges, shaft ends and port centers precisely—so they can replace OEM units without system modifications. Every pump undergoes 100% simulated duty-cycle testing to verify volumetric efficiency, pressure retention and noise performance. Multi-position port orientation and easily replaceable cartridges make them ideal for industrial hydraulic systems.

Technical Specifications

• Model: T7DS B35 3R00 A1M0 (T7D / T7DS / T6 / T7 series)
• Displacement: B35 = 113.4 ml/r (approx. 6.80 in³/r); series range 5.8–268.7 ml/r
• Continuous/intermittent pressure: intermittent up to 280 bar (B35); continuous approx. 210–250 bar (fluid-dependent)
• Peak pressure: up to 280–300 bar (intermittent, size-dependent)
• Speed range: minimum 600 rpm; maximum 2800 rpm (B35)
• Control type: fixed displacement (quantitative, no variable mechanism)
• Rotation: R = clockwise; L = counterclockwise (viewed from shaft end)
• Mounting flange: SAE C 2-bolt (T7DS) or ISO
• Shaft: keyed or splined
• Approximate weight: 26 kg (T7D/DS)
• Seals: standard Buna-N (S1); optional Viton

Key Technical Advantages:

1. True drop-in interchangeability and precision machining: Exact match to Parker Denison original mounting dimensions, shaft ends and port centers enables direct OEM replacement without system changes, minimizing downtime and modification costs. High-precision cam ring, rotor and vane processing ensures consistent performance.
2. High volumetric efficiency with hydraulic balancing: Pressure-balanced vanes significantly reduce cam-ring wear, delivering high volumetric efficiency (typically 94%) under high continuous pressure.
3. Low-noise and low-pulsation design: Optimized inlet geometry and vane configuration minimize oil turbulence and flow ripple, resulting in quiet operation suitable for industrial environments.
4. Long-life bearings and easy maintenance: Quality bearings and wear-resistant materials extend service life; independent replaceable cartridge design allows rapid on-site maintenance, reducing total cost of ownership.

Application Areas

Hydraulic systems for machine tools and machining centers, injection molding and die-casting machines, plastic machinery, metallurgical equipment, industrial hydraulic power units and high-low pressure combination systems.

Expert Maintenance Tips

1. Ensure precise shaft alignment during installation (flexible coupling recommended) to avoid additional radial or axial loads that accelerate bearing wear.
2. Fully prime the pump and verify a leak-free, air-free suction line before initial start-up; use clean anti-wear hydraulic oil of high cleanliness class.
3. Maintain suction and return filters regularly to prevent particle ingress that can score vanes and the cam ring; keep operating oil temperature within the recommended range.
4. When replacing the cartridge, work in a clean environment and tighten housing bolts to original torque values; for long-term storage, run the pump briefly every 3–6 months to prevent internal corrosion.