Spiral Aerators - Hire Or Buy - Rapid Installation

Quick and Easy

Quick to Deploy, Install and Relocate

Fleet of hire units in stock for quick despatch
Plug and Play with no on-site assembly needed
Surface-mounted, floating design for quick and easy integration
Lightweight units for rapid 'drop-in' installation using Hiab or crane

All-in-One Solution

Self-aspirating Aeration and Flow Inducement

No need for additional blowers and compressors
Aeration and mixing all-in-one
Single power source required
Powerful horizontal flow and fine bubble aeration.
Excellent mixing and oxygen dispersion capabilities
Self-aspirating
No splashing or release of spray
Low noise

No Regular Maintenance

Designed to Eliminate the Need for Regular Servicing

German-manufactured, robust design to withstand harsh environments
Anti-rag impellor design
No gearbox and no oil
Very few moving parts
No submerged bearings, couplings and corrosive parts
Recommended to undertake a proactive, inexpensive bearing and/or motor change every 3-5 years
Stainless steel feet to prevent propeller grounding
All wetted parts are stainless steel or GRP

Which Spiral Aerator is best for you?

Spiral Aerator Model Comparison Table

	WBL-I	WBL-Is	WBL-II	WBL-III	WBL-IV	WBL-V	WBL-VII	WBL-X	WBL-XV	WBL-XVIII	WBL-XXII
Power (kW)	1.1 kW	1.5 kW	2.2 kW	3 kW	4 kW	5.5 kW	7.5 kW	11 kW	15 kW	18.5 kW	22 kW
Power Supply Requirements
Power supply requirement	400 V, 50 Hz, 3 phase with D-rated breaker
Power supply connector size (A)	-	-	16 A	16 A	16 A	16 A	16 A	32 A	32 A	63 A	63 A
Full load current (A)	2.6 A	3.4 A	4.8 A	6.3 A	8.2 A	10.9 A	14.5 A	20.8 A	28.1 A	34.5 A	41 A
Start-up current (A): Star-Delta	-	-	-	-	22 A	30 A	41 A	60 A	82 A	101 A	120 A
Start-up current (A): Direct on Line (DOL)	19 A	26 A	37 A			29	36	49	82	84	93
Generator (kVA): Star-Delta	-	-	-	-	10 kVA	13.5 kVA	18 kVA	26 kVA	35 kVA	43 kVA	51 kVA
Generator (kVA): Direct on Line (DOL)	6 kVA	8 kVA	11 kVA	15 kVA	20 kVA	27 kVA	36 kVA	52 kVA	70 kVA	86 kVA	102 kVA
Generator (kVA): Per additional aerator	+2 kVA	+3 kVA	+4 kVA	+5 kVA	+6 kVA	+8 kVA	+11 kVA	+ 15 kVA	+20 kVA	+ 25 kVA	+30 kVA
	We do not recommend the use of variable speed drives or soft starters for Spiral Aerators. Please contact Corgin to discuss.
Operating Environment
Water depth (feasible)	1.0 - 4.0 m						1.8 - 4.5 m			2.0 - 6.0 m
Water depth (optimum)	1.5 - 3.0 m						2.0 - 3.5 m			2.5 - 4.0 m
Dimensions and Weights
Overall dimensions (LxWxH)	2650 x 1400 x 1250 mm						3300 x 1700 x 1500 mm
Weight (including float assembly)	155 kg	158 kg	164 kg	174 kg	181 kg	185 kg	277 kg	292 kg	302 kg	328 kg	416 kg

Applications

Spiral Aerator Applications

Aeration Tanks, Lanes and Pockets
Sludge Handling and Treatment
Oxidation Ditches and Annulus Tanks
Lagoons and Large Waterbodies

Frequently Asked Questions

Spiral Aerator FAQs

What is the oxygen transfer rate of a Spiral Aerator?

The oxygen transfer rate of a Spiral Aerator is 1:1 and can be 1:1.2 in some situations.

Does a Spiral Aerator provide mixing as well as aeration?

A Spiral Aerator provides a combination of aeration and mixing using a powerful horizontal flow and fine bubble aeration.

How is a floating Spiral Aerator moored?

When hired or used in a temporary installation, a Spiral Aerator is moored using stainless steel mooring cables. When installed permanently, a Spiral Aerator is secured using a hinged side- or rear-fixing arm.

How is a bracket-mounted Spiral Aerator secured?

A bracket-mounted Spiral Aerator is secured using a galvanised steel, hinged bracket, which is made to fit an existing metal or concrete structure that may be in place. For example, bracket-mounted Spiral Aerators can be installed onto existing bridges across an aeration lane.

What maintenance is required of a Spiral Aerator?

A Spiral Aerator requires little to no maintenance. The Original Equipment Manufacturer (OEM) recommends changing the motor bearings every 3 - 5 years depending on usage.

Spiral Aerator

Float-Mounted Self-Aspirating Aerator