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Screw Screen in Tank

The packaged Screw Screen in Tank (Product ID: SSB) provides primary treatment for untreated sewage and a wide range of industrial wastewater. It incorporates a screw screen that is mounted in a stainless-steel tank with flanged inlet and outlet connections, which allows for easy installation.

The tank can be fitted with an optional integrated bypass chamber (as contingency if the main screen overflows) fitted with a manually cleaned screen. The Screw Screen in Tank has a self-cleaning screen basket, with brushes fitted along the screw that continuously remove debris from the screen element surface, ensuring high solids removal efficiency. The screen element is offered in two options, rounded holes ranging from 3 to 10 mm or wedge wire ranging from 0.25 to 3 mm.

It is available with or without a compaction system, which is designed to reduce the weight and volume of captured screenings by up to 50% after compaction. The integrated compactor, located at the end of the transport section, efficiently washes, compacts and dewaters the screenings. Due to small footprint, minimal civil works required, and ease of installation, the Screw Screen in Tank offers a simple and low-cost solution for small wastewater treatment applications and septage receival facilities.

Technical Specifications

Standard Specifications

Parameter			Units	SSB-mK-110	SSB-mK-160	SSB-mK-260	SSB-mK-390	SSB-mK-610	SSB-mK-830
Treatment capacity^*1	With rounded holes (mm)	Ø3	m³/h	80	122	158	320	502	690
		Ø4		93	137	218	360	528	756
		Ø5		108	158	259	390	612	830
		Ø6		126	164	288	430	630	850
		Ø7		137	183	310	468	730	905
		Ø10		158	194	333	495	790	970
	With wedge wire(mm)	0.3		17	34	75	115	180	220
		0.5		45	64	95	170	300	340
		1		50	81	135	252	350	430
		2		85	100	145	303	430	580
		3		112	125	187	340	505	730
Dimensions		A	mm	3,190	3,120	3,125	3,100	4,050	4,175
		T		2,250	2,250	2,250	2,250	2,600	3,135
		H		1,500				1,750	1,950
		O		175	205	235	255	300	360
		I		220	250	285	315	380	440
		F		2,160	2,300	2,350	2,350	2,900	3,300
		W		430	480	600	650	720	870
Inlet/outlet flange^*2			DN	150	200	250	300	400	500
Installed motor power			kW	0.55	0.75	0.75	0.75	0.75	0.75
Screw gear reducer speed			rpm	11	11	11	8	8	8
Wash water: Screen basket / compaction zone (@3 bar)			L/min	23 / 31				62 / 44
Empty weight			kg	400	440	480	570	900	990

*¹Theoretical, calculated using clean water, *²Flanges are lap joint max 15mm thick with holes P16 according to AS4087.

Tech specs

Standard Inclusions and Options

✓ = Standard Supply- = Not Applicable

Equipment			Standard Supply	Optional Supply
Screw screen in tank	Rounded holes screen element, 5mm (standard) or 3, 4, 6 ,7 or 10mm		✓	-
	Wedge-wire screen element 0.25, 0.5, 1, 2 or 3mm		-	✓
	Integrated screenings compaction (can be deleted as an option)		✓	-
	Screen basket cleaning, bolted nylon brushes		✓	-
	PE breathing valve on screen tank		✓	-
	PVC pipe for returning liquid from compaction zone		✓	-
	Squared outlet spout		✓	-
	Bolted screenings compaction system cover		✓	-
	Lifting eyebolts		✓	-
	Nord drives with compact motor gearbox and cover guards		✓	-
Machine carpentry, inlet & outlet flanges, drive guards, anti-wear materials on screw and bypass chamber (where applicable)		SS304, bolts A2	✓	-
		SS316, bolts A4 (recommended for coastal and corrosive environments)	-	✓
Bypass chamber with manual bar screen	Bar screen	10mm	✓
	Rounded holes	6 or 10mm	✓	✓
	Custom	Other options on special request	-	✓
Screw	High-carbon steel painted		✓	-
	SS304		✓	-
	SS316 (recommended for coastal environments and corrosive feeds)		-	✓
Washing systems	Compaction zone only, with ½” manual valve		✓	-
	Compaction zone with ½” manual valve and screening basket with 1” manual valve		-	✓
	Manifold for compaction zone and screening basket, with 1” manual valve		-	✓
Automatic Longopac bagging system for screenings with 1x 80m long bag			-	✓
Overflow outlet (flanged)			-	✓
Odour extraction port (flanged)			-	✓
Extended tank for tilt-out screen maintenance			-	✓
Drive motor premium efficiency		IP55	✓	-
Drive motor premium efficiency		IP65 with thermistor overload protection	-	✓
Surface treatments*1			✓	-

*¹Stainless steel parts: stripping with acid solution, passivation with glass particles, final surfaces cleaning with anti-dust oil. Carbon steel parts: sandblasting SA 2.5 for external anti-rust paint RAL 5015

Instrumentation & Controls		Standard Supply	Optional Supply
Safety limit switches for screen and compaction zone opening hatches		✓	-
Screen tank level sensor	Conductive probe	✓	-
Screen tank level sensor	Ultrasonic	-	✓
Solenoid valve kit(s) for washing system(s) 24VDC		-	✓
Mechanical over-torque protection (backlash free-ball model)		-	✓
Control panel to AS/NZS 3000, 316SS enclosure with inner door, IP56 for outdoor installation, touch screeninterface, supplied loose, field wiring between control panel and equipment by others		-	✓

Disclaimer: We continuously update and improve our products and services, contact us for more detailed information or to confirm specifications. MAK Water takes no responsibility for any errors resulting from the use of information contained on this website.

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