T6H20C Parker Denison Hybrid Vane Pump 42.9+ Fixed 240bar

Product Overview

The T6H20B, T6H20C, T6H29B, T6H29C, T6H29D and T6H29DB models belong to the Parker Denison T6H series of hybrid hydraulic pumps. This series integrates a variable-displacement piston cartridge (P1) with fixed-displacement vane cartridge(s) (P2/P3) on a common shaft, sharing a large inlet and providing independent outlets for compact, low-noise, high-pressure performance. We specialize in the R&D and manufacturing of high-pressure pumps, motors and valve blocks. Our products offer 100% drop-in interchangeability with genuine Parker Denison T6H units and undergo 100% simulated operating-condition testing. Precision machining and high-quality materials ensure stable variable and fixed flow output under high-pressure conditions for industrial and mobile hydraulic systems.

Technical Specifications

(Based on official Parker Denison technical data; theoretical values excluding efficiency and tolerances)

• Series: T6H20B / T6H20C / T6H29B / T6H29C / T6H29D / T6H29DB
• Typical model examples:
  • T6H20C 017 1R1B CO0 000 10 / T6H20C M25 3R1C0 2F0M0 1071: Variable section 42.9 ml/r + fixed section (e.g. 017 ≈ 58.2 ml/r or M25 ≈ 79.3 ml/r)
• Variable section (P1) displacement: 42.9 ml/r (T6H20 series); 61.9 ml/r (T6H29 series)
• Fixed section (P2) displacement range: T6H20C 10.8–100 ml/r; T6H29C 10.8–100 ml/r; T6H29D 47.6–158 ml/r
• Continuous pressure (variable section): 240 bar (T6H20 series); 210 bar (T6H29 series)
• Peak/intermittent pressure: up to 280 bar (depending on fluid and size)
• Speed range: 600–2600 r/min (T6H20); 600–2400 r/min (T6H29; lower for larger displacements)
• Control: Variable section pressure compensator / flow control (ventable options available); fixed section fixed displacement; rotation selectable (R = clockwise, L = counterclockwise)
• Mounting & ports: SAE B/C flange; large shared inlet + independent outlets
• Approximate weight: 37–47 kg for T6H20 series; higher for T6H29
• Other: Low-noise PV + vane combination; suitable for mineral oils and various fire-resistant fluids

Key Technical Advantages

1. Precision hybrid cartridge integration: Variable piston and fixed vane cartridges driven by a common shaft with shared inlet deliver ultra-compact dual independent outputs and exceptional engineering flexibility.
2. High-pressure efficiency and low-noise design: Continuous pressure up to 240 bar (T6H20 variable section) with equally high fixed-section capability; PV + vane combination significantly reduces noise for better working conditions.
3. Long service life and easy maintenance: High-quality materials and precision machining ensure excellent wear resistance; cartridges can be replaced independently, reducing maintenance cost and downtime.
4. 100% drop-in interchangeability and simulated-condition testing: Overall dimensions, mounting interfaces, shaft types, port positions and performance curves match genuine Parker Denison units exactly for direct replacement. Every unit undergoes 100% simulated operating-condition testing to verify pressure, flow, efficiency and sealing performance.
5. Flexible configurations for multi-circuit needs: Multiple fixed-section displacements, shaft types, rotations and control options available for easy adaptation to industrial and mobile host machines.

Application Areas

• Injection molding and die-casting machines: Variable main circuit + fixed auxiliary supply
• Machine tools and industrial equipment: Independent pressure/flow control for multiple actuators
• Construction machinery and mobile equipment: Variable main pump + fixed steering/cooling circuits
• Metallurgical and rubber/plastic machinery: Compact high-pressure dual-function oil supply systems

Expert Maintenance Tips

• Before installation, confirm rotation, shaft type and port configuration match the host machine. Ensure adequate suction line diameter and proper sealing to avoid cavitation.
• Use hydraulic oil with cleanliness meeting ISO 4406 18/16/13 or better; maintain suitable viscosity at operating temperature. Run at low speed during cold starts.
• Keep case pressure below 0.7 bar; regularly check external drain and seal condition. Ensure variable-section control oil lines remain free-flowing.
• When replacing cartridges, maintain strict cleanliness and correct assembly sequence; perform air bleeding and low-pressure test run afterward.
• Perform preventive inspections every 2000–4000 hours depending on duty cycle; monitor noise, temperature and any flow changes, and replace worn cartridges promptly.