Combined Unit with Piston Discharge


with piston discharge


Areas of application

■ Pipe cleaning, hydrodynamic
■ Sewer cleaning, hydrodynamic
■ Surface cleaning
■ Cleaning inside of tanks
■ Industrial cleaning
■ Water milling
■ Cesspit emptying
■ Landfill water disposal
■ Gully cleaning
■ Oil, fuel and grease separator/filter cleaning
■ Transport of dangerous goods (with optional ADR equipment)


■ Discharge by free flow
■ Discharge by pressurisation of vacuum pump
■ Discharge by piston discharge (pneumatic or drag piston)
■ Multiple compartment system (optional)
■ Combined operation of suction and high-pressure rinsing
■ fixed water compartment or variable water compartment


■ Sludge compartment size: on customer request
■ up to 20000 litre air volume
■ Sludge compartment format: cylindrical
■ Material: Steel or stainless steel
■ With fully opening closure hatch
■ Water compartment prefabricated in tank, in piston entrance or as water bags on the side
■ Contents level display via inspection glass or floating display with scale

Closure hatch

■ can be opened over the whole cross-section,
■ Torispherical head
■ Material: Steel or stainless steel
■ opens hydraulically upwards
■ Central locking closure hatch can be operated pneumatically, hydraulically or by hand

Vacuum pump

■ Vacuum pump make according to customer demand (e.g.: CVS, Gardner-Denver-Wittig, SIHI, Jurop, Samson etc.)
■ Quantity: 1 or 2 pieces
■ Suction capacity: up to 4000 m3/h
■ Mechanical or hydraulic power from auxiliary drive of the chassis or via separate engine
■ Optionally with: Suction hose reel, boom, cassette or cassette boom


■ Hose storage cartridge boom or
■ Hose storage cartridge with telescopic boom or
■ Hose storage cartridge with simultaneous telescopic boom or
■ Hose storage cartridge with telescopic HP reel or
■ Hose storage cartridge with swivel head boom or
■ Suction hose reel with integrated suction hose boom

High pressure pump

■ High pressure pump, make according to customer demand (URACA, Hammelmann, Speck, Woma, KAMAT, Pratissoli etc.)
■ Quantity: 1 or 2 pieces
■ Rinse capacity: up to 600 l/min at up to 400 bar
■ pneumatic pressure regulating valve
■ Pressure speed control
■ Power from auxiliary drive of the chassis or via separate engine

High pressure system

■ Large high pressure rinsing reel with continuous hydraulic power in both directions;
■ Large high pressure rinsing reel fixed or swivelling built on closure hatch or on trailer, partially telescopic
■ Large high pressure rinsing reel designed for DN 19, DN 25, DN 32, DN 38 HP hose, up to 360 m, in special models also up to 500 m
■ Small high pressure rinsing reel operated hydraulically or manually, designed for 40 to 120 m DN 13 HP hose


■ Logo control
■ CAN-BUS control
■ Pressure speed regulation
■ Radio remote control,
■ central controls in stainless steel housing


■ Discharge apron made from aluminium or stainless steel
■ Toolboxes or hose boxes on left and right side, made from aluminium or sheets of stainless steel
■ Additional toolbox
■ High pressure/sewer rinsing hoses
■ Water level warning system
■ Residual water emptying system
■ Vice
■ Spraying gun/wash lance
■ Halogen working lights
■ etc.


■ Air compressor,
■ Hydraulic winch
■ Reversing camera system
■ Metering system
■ Heated wardrobe
■ Full cladding
■ Hand washing system with cold water or cold/warm water
■ Billboards
■ Odour neutralisation system
■ Deep suction facilities
■ Winter heating
■ Anti aerosol
■ Nozzle set
■ etc.

Our customers productivity is our main priority, can we help you?

OC Mechanical Services