SIGMA Aquaculture Equipment
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Paddle Wheel Aerator

The world's most widely used pond aerator — a floating paddle wheel aerator that splashes and churns the surface to dissolve oxygen while driving a strong circular current, keeping shrimp and fish ponds oxygenated and well-mixed, with a corrosion-proof 304 stainless frame, PP floats and impellers, and an energy-saving curved-bevel-gear drive.

  • Power0.75–2.2 kW (1–3 HP)
  • Impellers2 / 4 / 6 / 8 paddle
  • Coverageup to ~48,000 m²
  • Build304 SS frame · PP floats
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Paddle Wheel Aerator
ISO 9001 CE OEM / ODM

15+ years in aquaculture engineering · Trusted by Japfa Group, Japan Nissui & Tropo Farms · Shipped worldwide in one container

Global Biofloc provider

Paddle Wheel Aerator

Intensive high-yielding aquaculture technology has been widely used, fishery farming increased significantly. In the process of aquaculture production increase, aerator has become an essential equipment to achieve high-yield fisheries intensive, plays an important role in the development of fishery economy.

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Tilapia biofloc
Shrimp biofloc
Trout biofloc
Carp biofloc
Catfish biofloc

Suitable for aquatic species.

Benefit

Main Features

Envirment friendly

Mechanical seal is used to ensure no oil leakage pollution

High Efficiency

High efficiency oxygen transferring ability with 2.6kgs O2/h

Easy assortment, operation and maintenance

Manufacturing

Take a look in workshop

Package for shipment

Sea freight suitable
Paddle wheel aerator

Carton packaging

Paddle wheel aerator

Loading into container

Application Video

Our videos recorded by customer, If you need installation and operation videos, contact us directly, our engineers will answer your questions,

FAQ

Most frequent questions and answers

Paddle Wheel using 36 Slot motor with 2.35Kgs copper wire.We use best quality copper in motor.

All Screw are using #304 Stainless Steel screw, High grade cast iron body with beautiful paint.

Minimum Order Quantity 5 sets

Wooden/Carton box, sea freight suitable.

110v, 220v, 380v available.

About the company

SIGMA Aquaculture (SIGMA INDUSTRIES CO.,LTD)located in North of China Shandong Province, We have 15 years experience in Aquaculture equipments manufacturing. Our factory focus on Biofloc fish tank producing. Both PVC and  HDPE material available. We also provide relevant equipments from partners for customers. such as aeration equipments and accessories.

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Specifications

Models & configuration

Model series integrated from the industry standard range — final ratings are confirmed by SIGMA's production line before shipment.

ModelCapacityTypical useCore configuration
SIGMA-PWA-075Small–mid shrimp / fish ponds
SIGMA-PWA-150Standard shrimp ponds
SIGMA-PWA-220Large shrimp / intensive ponds
SIGMA-PWA-MHigh-density intensive culture
MotorThree-phase asynchronous / permanent-magnet synchronous DC (optional frequency-conversion control)
Gear driveCurved arc-bevel gear (Cr-Mn-Ti alloy steel, carbonitrided) — ≥20% energy saving vs worm gear
Frame & shaft304 stainless steel
Floats & impellersPP (polypropylene)
Voltage / frequency110 / 220 / 380 / 440 V · 50/60 Hz · single / three phase
Aeration efficiency≥1.25–1.5 kg O₂/(kW·h)
Water typeFreshwater / brackish water (shrimp ponds)
OptionsSolar drive, frequency converter, extended arm, full stainless set

System composition

Aeration + circulation in one

The blades splash water into the air to dissolve oxygen while the rotating wheels drive a strong circulating current that distributes DO, sweeps waste toward the centre drain and prevents stratification.

Curved bevel gear saves ≥20% power

Replaces the older worm-gear drive with a chrome-manganese-titanium alloy bevel gear, carbonitrided for hardness — higher efficiency and longer life.

304 stainless + PP construction

Stainless frame and shaft with PP floats and impellers resist fresh- and brackish-water corrosion — the standard build for commercial shrimp ponds.

No oil leaks, no burnout

A mechanical seal prevents oil-leak pollution of the pond, and a built-in motor protector guards against accidental burnout.

Scales from 1 HP to multi-wheel

2-, 4-, 6- or 8-impeller layouts cover pond areas from a few thousand up to ~48,000 m².

Solar & variable-speed options

Permanent-magnet DC motors with frequency-conversion control and solar-powered versions suit off-grid and energy-sensitive farms.

Application

  • Intensive shrimp ponds (vannamei / black tiger) — the industry-standard pond aerator
  • Open ponds for tilapia, carp and bass grow-out
  • Biofloc open ponds — surface aeration plus floc suspension and mixing
  • High-density fingerling nursery ponds needing circulation

FAQ

Frequently asked questions

What is a paddle wheel aerator used for?

It is the standard aeration tool for open shrimp and fish ponds — the floating wheel splashes and churns the surface to dissolve oxygen while driving a strong circular current that mixes the pond and sweeps waste toward the centre drain.

How does the curved-gear drive save energy?

SIGMA’s units use a curved arc-bevel gear drive in place of the older worm gear, cutting power consumption by roughly 20% over traditional designs.

Is there a solar paddle wheel aerator?

Yes — optional permanent-magnet synchronous DC motors with frequency-conversion control and solar-powered versions are available for off-grid and energy-sensitive farms.

What power rating and how many impellers are available?

Configurations scale from 1 HP / 0.75 kW up to 2.2 kW in 2-, 4-, 6- or 8-impeller layouts, covering pond areas up to ~48,000 m².

What is the paddle wheel aerator made of?

The frame and shaft are 304 stainless steel with PP floats and impellers, resisting fresh- and brackish-water corrosion; a mechanical seal prevents oil-leak pollution.

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Request a tailored quote

Tell us your species, target density and site — our engineers size the system and reply within one business day.

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