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Walther Trowal Automatic Peeling Centrifugal Waste Water Processing Plant with Integral Solid Dewatering Facility

Used / Second Hand

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In stock now
Stock No
Walther Trowal
Year of Manufacture
2000 litre/hour
Centrifugal sludge dewatering separator
Other Info
Comprehensive waste water treatment
Our Central Warehouse, Aldridge, UK
Weight (kgs)
External Dimensions (WxDxH mm) [?]
1600 x 1030 x 2200
Your delivery options


Model Range ZA Automatic Peeling Centrifuge

After vibratory finishing the effluent (dirty process water) contains abrasive and metal fines, frequently also oil and metals. For this reason, the effluent must be cleaned before going to drain or being recycled back to the finishing process.

ZA 06 Centrifugal Filters

Abrasive and metal fines as well as trapped oil are separated from the process water by way of centrifugal force and can be removed as semi dry mud. The cleaned process water can be re-used and is pumped back to the finishing machine.

The recycling of the process water from the finishing process not only reduces the consumption of water (up to 98 %), but it also reduces the usage of compound (up to 90 %) and the cost of waste disposal.

Automatic peeling centrifuge ZA

The PLC controlled, automatic centrifuges ZA 06 can clean up to 2000 litres of mass finishing process water per hour. The mud deposited on the wall of the rotating drum is automatically removed with a “peeling” knife and dropped into a mud container according to pre-set time intervals.

Due to the modular construction of the ZA model range, an optimum machine configuration is possible, which can be adapted to various customer-specific requirements. These are among others the selection of various sizes of waste water and process water tanks, cooling systems, additional process water pumps, dosing systems etc.

Cleaning by centrifugal force

With the centrifugal filter technology solid fines are removed from the process water with a centrifugal force which is up to 2,417 times higher than the gravity of the earth. Oil and / or extremely fine solids < 1 µm can be removed by adding flocculants. The compound utilised for the finishing operation remains largely in the process water for re-use in the finishing process.

Process water treatment system

Accompanying the machine is a water management system, taking waste water into a storage tank which is then fed to the centrifuge for processing.

Once completed, the processed water is returned to an adjacent storage tank where is it transferred to drain or reuse.

Both tanks have level control, solution agitation and Air Diaphragm transfer pumps and is controlled for the central control panel, providing a complete waste water treatment system


  • Capacity (l/h) 2,000
  • Mud volume (l) 28
  • Centrifugal rating (g) 2417
  • Dirty water tank (l) 1500
  • Clean water tank (l) 1000
  • Type of drive V-Belt drive
  • Dimensions (mm) (LxDxH)  2,100 x 3,000 x 2,350
  • Motor power-average (kW) 5
  • Drum diameter 500 MM
  • Drum wall Thickness 10mm
  • Integral chilling system designed to control the system temperature so to maintain the optimum working temperature.

Limits of application

Centrifuges cannot be used universally. They are not suited for the following mass finishing applications:

• Chemically accelerated and paste processes

• All standard mass finishing processes

• Multi-stage processes with different compounds

• Pickling processes with acid

• Ball burnishing applications


pdf icon Print / Download Walther Trowal Automatic Peeling Centrifugal Waste Water Processing Plant with Integral Solid Dewatering Facility Datasheet

Additional files

PI Diagram

Photographs taken prior refurbishment. Our refurbishment service is not available on all machines.