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Sanitation vehicles (e.g., garbage trucks, street sweepers, sewer vacuum trucks) rely on hydraulic systems for waste compaction, lifting/dumping bins, operating cleaning tools, and managing fluid systems. Below is a detailed breakdown of hydraulic components and high-market-share products with specific models:

1. Hydraulic Pumps

Role: Generate fluid flow to power compactors, lifters, and cleaning systems.
Common Types:

  • Gear pumps (fixed displacement for simplicity and cost-effectiveness).

  • Piston pumps (variable displacement for high-pressure tasks like compaction).
    Top Models:

    • Bosch Rexroth A10VO Series (e.g., A10VO 28/45) – Widely used in refuse trucks for compaction and lifting.

    • Eaton 7000 Series (e.g., 7031) – High-pressure piston pumps for sewer jetting systems.

    • Parker Hannifin PGP Series (e.g., PGP505) – Compact gear pumps for bin lifters.

    • Danfoss 90 Series – Energy-efficient pumps for load-sensing systems in modern sweepers.

2. Hydraulic Cylinders

Role: Operate compaction rams, bin lifters, dump bodies, and sweeper brooms.
Common Types:

  • Telescopic cylinders (multi-stage for compacting waste).

  • Double-acting cylinders (precise control for lifting/dumping).
    Top Models:

    • Parker Hannifin DP Series – Robust telescopic cylinders for garbage compactors.

    • Eaton CMA Series – Corrosion-resistant cylinders for sewer vacuum arms.

    • Bosch Rexroth CDL1 Series – Compact cylinders for bin lifters.

  • Hydac HSK Series – Customizable cylinders for street sweeper broom adjustments.

3. Hydraulic Motors

Role: Drive vacuum pumps, sweeper brushes, and water jets.
Common Types:

  • Gear motors (durable, low-speed for vacuum pumps).

  • Orbital motors (high torque for sweeper brush rotation).
    Top Models:

    • Eaton Char-Lynn S Series (e.g., SAA25) – High-torque motors for sewer vacuum systems.

    • Danfoss OMM/OMV Series – Gear motors for water jet pumps in cleaning trucks.

    • Parker Hannifin F11/F12 Series – Orbital motors for sweeper brush drives.

4. Directional Control Valves

Role: Regulate fluid flow for compaction, lifting, and cleaning functions.
Common Types:

  • Proportional valves (precise control of compaction force).

  • Solenoid valves (automated bin lifter operations).
    Top Models:

    • Bosch Rexroth 4WRPEH Series – Proportional valves for waste compaction control.

    • Danfoss PVG Series – Load-sensing valves for energy-efficient sweeper systems.

    • Parker D1VW Series – Manual spool valves for dump body control.

5. Hydraulic Hoses & Fittings

Role: Transport fluid under high pressure in dynamic, abrasive environments.
Key Features: Abrasion resistance, flexibility, and high burst pressure.
Top Models:

    • Gates MegaSys – Spiral-wire hoses for high-pressure sewer jetting.

    • Parker 79SC Series – Thermoplastic hoses for compactors and lifters.

    • Eaton Aeroquip FC332 – Lightweight hoses for sweeper systems.

6. Hydraulic Power Units (HPUs)

Role: Compact systems to power auxiliary functions like water jets or vacuum pumps.
Top Models:

    • Bosch Rexroth CytroPac – Modular HPUs for integrated sweeper systems.

    • Parker Hannifin Custom HPUs – Tailored for sewer truck vacuum pumps.

7. Accumulators

Role: Stabilize pressure, absorb shocks, and enable emergency functions (e.g., lowering a stuck compactor).
Common Types: Bladder or piston accumulators.
Top Models:

    • HYDAC SB Series – Bladder accumulators for emergency dump body lowering.

    • Eaton LA Series – Piston accumulators for high-pressure compaction circuits.

8. Hydraulic Filters & Reservoirs

Role: Maintain fluid cleanliness in dirty operating conditions.
Top Models:

    • Donaldson P Series – High-efficiency return-line filters for refuse trucks.

    • HYDAC HDU Series – Suction filters with contamination sensors for sweepers.

    • Parker Hannifin Compact Reservoirs – Space-saving designs with integrated baffles.

9. Proportional Pressure Relief Valves

Role: Prevent overloading during compaction or lifting.
Top Models:

    • Sun Hydraulics RPEC Series – Adjustable relief valves for compaction systems.

    • Bosch Rexroth DBET Series – Proportional valves for precise pressure control.

Application Examples

    • Garbage Compaction: Bosch Rexroth A10VO pumps power Parker DP Series telescopic cylinders.

    • Bin Lifting: Eaton CMA cylinders controlled by Danfoss PVG valves.

    • Sewer Jetting: Danfoss OMM motors drive high-pressure water jets via Gates MegaSys hoses.

    • Street Sweeping: Parker F11 motors rotate brushes, paired with HYDAC SB accumulators for shock absorption.

Industry Trends

    • Electrification: Hybrid/electric sanitation vehicles using Danfoss PLUS+1 or Bosch Rexroth eHybrid systems.

    • Smart Hydraulics: IoT-enabled diagnostics for predictive maintenance (e.g., contamination sensors in HYDAC filters).

    • Lightweighting: Compact components from Parker and Eaton to improve payload capacity.

Major sanitation vehicle manufacturers like Heil, McNeilus, Bucher Municipal, and FAUN Umwelttechnik source hydraulic components from these brands to ensure reliability, efficiency, and compliance with environmental regulations.


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