Kendensha Co. Ltd.
About
Kendensha Co. Ltd. is a Japanese manufacturer established in 1958 and headquartered in Izumo, Shimane Prefecture, with over 60 years of experience designing and producing solid-liquid separation and sludge dewatering equipment. The company integrates marketing, engineering, and manufacturing in-house and has delivered more than 1,300 units worldwide. Kendensha's flagship product, the KDS Separator (marketed as SLIT SAVER), is a patented multi-disc roller separator whose self-cleaning mechanism prevents screen clogging without backwash during operation, yielding a footprint roughly one-third that of conventional devices, power consumption approximately one-fifteenth that of decanter centrifuges, and wash-water usage one-forty-fifth of belt presses. The KDS Separator is available in five models (SS-2.56 through SS-1212) with treatment capacities from 20 to 300 kgDS/hr and motor ratings from 0.1 to 0.75 kW. The KDS Dewatering System pairs the separator with a polymer preparation system for continuous, unattended 24/7 sludge dewatering. The DBSP Series coax reverse-rotation screw press employs a two-stage screw shaft mechanism that eliminates the back-pressure plate and achieves lower cake moisture than conventional screw or belt presses. The CF Screen extends the clog-free operating principle to a compact, higher-throughput impurity removal format. Kendensha also formulates approximately 100 flocculant types—available in powder and emulsion forms—matched to specific sludge characteristics, and offers an automated polymer preparation system for continuous dosing. The company has received the Director of Chugoku Bureau of Economy, Trade and Industry Award at the 5th Monozukuri Nippon Awards and the METI Commissioner's Award at the 43rd Excellent Environmental Equipment Awards. Overseas operations include a Thai affiliate (C.C. KENDENSHA) and a Vietnam representative office.
Key Products
Patented multi-disc roller separator providing self-cleaning, clog-free solid-liquid separation and fine screening without backwash, consuming 1/15 the power of centrifuges and 1/45 the wash water of belt presses
Complete continuous sludge dewatering system combining the KDS Separator with flocculant dosing for 24/7 unattended operation, available in three capacity models (10-30, 30-60, 60-90 kgDS/hr)
Two-stage screw press achieving higher cake dryness than conventional screw presses and belt presses, with no back pressure plate to reduce leakage and blockage
Compact impurity removal device inheriting the clog-free mechanism of the KDS Separator in a smaller, higher-throughput format for screening applications
Automated system for preparing and dosing powder or emulsion flocculants, supporting continuous dewatering system operation
Approximately 100 types of flocculants matched to different sludge properties, available in powder and emulsion formulations for optimizing dewatering performance
Advanced dewatering technology combining mechanical pressing with electro-osmotic force for enhanced moisture removal from sludge cake
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