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Safecleen Engineering Machinery Co. Ltd, China (“Safecleen”)(formerly Black Whirlwind Engineering Machinery Development Co.Ltd) is a wholly owned subsidiary of China’s Metallurgical Geology Bureau. They design and build foundation construction equipment like Slurry Treatment Plants (STP), Backfill Batching Plants (BBP), and Desander to international standards. They also provide full technical services to back up their equipment in the field.

Slurry Treatment Plant:

They supply both Filter Press and Centrifuge type Slurry Treatment Plants for TBM with capacity ranging from 500 m3/hr to 6000 m3/hr. These plants are capable of recycling slurry to zero wastewater discharge. Safecleen has worked with all major brands of TBM and set up over 20 STP in China and overseas. The largest STP supplied by them is a 6000 m3/hr plant for the Wuhan Metro.

Backfill Batching Plant:

Used by contractors for backfill grouting with A & B liquid slurry preparation, Safecleen can supply such plants with capacity ranging from 20 m3/hr to 160 m3/hr.


Desanders are used by piling, diaphragm wall and pipe-jacking contractors for foundation construction. Safecleen can supply both cutter type and grab type with capacity from 100 m3/hr upwards.


Projects in Singapore supplied by Safecleen:
Slurry Treatment Plant
Project: PUB Murnane Pipeline Project P5 – Ganges Ave
Main Con: Tiong Seng Contractors Pte Ltd
Backfill Batching Plant
Project: MRT Thomson-East Coast Line T206 – Tunnels between Woodlands Station and Woodlands Ave 12
Main Con: Shanghai Tunnel Engineering Co (Singapore) Pte Ltd
Project: MRT Thomson-East Coast Line T305 – Katong Park Station
Main Con: Shanghai Tunnel Engineering Co (Singapore) Pte Ltd
Project: MRT Thomson-East Coast Line T222 – Outram Park Station
Main Con: Daelim Industrial Co. Ltd.
Project: MRT Downtown Line 3 C925 – Tampines East Station
Main Con: GS Engineering and Construction Corporation
Project: MRT Thomson-East Coast Line T225 – Shenton Way Station
Main Con: Shanghai Tunnel Engineering Co (Singapore) Pte Ltd
Project: Marina Bay
Main Con: Bachy Soletanche Singapore Pte. Ltd.
Project: PUB Pipe-jacking –  Sewer at Woodlands Road
Main Con: Presscrete Engineering Pte Ltd

Product Range

Slurry Treatment Plant
Backfill Batching Plant

Catalog Download

Safecleen Catalogue
Safecleen STP Introduction