– perfected since 1950
Landia Chopper Pumps, with the unique external chopping system, is designed for pumping heavily contaminated liquids and liquids with high solids concentration.
The cutting system
The cutting system consists of two rotating and one or three fixed knives placed in front of the pump suction and ensures that:
- The inlet to the pump is at all time free of clogging
- Large solids are chopped before entering the pump
The pump casing and the impeller form a unit which ensures that no dry solids are “caught” inside the pump. The design and the size of the impeller are adjusted to the actual application. The impeller is not used as part of the chopping action – this reduces wear significantly compared to competition.
Landia chopper pumps are available in the following materials:
- Cast iron
- Heat treated cast iron for abrasive applications
- Stainless steel SS 316 for low or high pH applications
Thousands of Landia chopper pumps are in operation throughout the world. The applications are numerous – below please some examples:
- Municipal waste water – typically unscreened, raw sewage and thickened sludge
- Domestic waste such as food waste, paper, fats and vegetable waste
- Animal slurry from cows, pigs, poultry etc.
- Biogas applications for pumping and chopping the incoming substrate
- Abattoir waste containing bones, intestines, feathers, hair and fats
- Fish and fish waste
- Combined circulation, mixing solids reduction in Anaerobic Digesters
Landia's submersible chopper pumps are made to handle viscous and highly corrosive fluids, and are used in e.g. wastewater treatment plants, biogas plants, the agricultural industry, the food industry and in various industrial processes.
They are extremely versatile with motors ranging from 0.55 – 30 kW. The DG-I chopper pump can handle liquids with a high concentration of solids – significantly more than most other submersible pumps.
Landia's DG chopper pump can, depending on the type, supply a pump pressure of up to 5 bar, which makes it possible to pump the slurry over long distances - up to several kilometres!
The Landia MPTK-I is a heavy-duty chopper pump designed for dry installation. Only the hydraulic part of the pump is exposed to the liquid and overheating is never an issue as the motor is effectively cooled by the integrated ventilator fan. The non-clog characteristics are identical to that of the submersible Landia chopper pumps, and compact installation dimensions are achieved through a unique single shaft design.
Furthermore, the pump is very easy to service and the most common wear parts can be replaced in less than 30 minutes.
Versatile dry installed Chopper Pump with motors ranging from 0.55 – 30 kW. The MPTK-I pump is for in-line installation outdoor or in a dry pit.
Available as 4”, 5” or 6” and with motors from 5.5 – 30 kW there is a Landia Long shaft chopper pump for almost any application.
The MPG & TPG chopper pump can pump slurry with a high concentration of solids – significantly more than the “average” long shaft pump.
Our long-shaft pumps are always customized
All MGP-I pumps are equipped with a knife system at the inlet of the pump and can be supplied with fixed or adjustable nozzle for recirculation or mixing.
We offer individual pump solutions with a choice of different options such as fixed- or adjustable mixing nozzles, two-way valves, transfer pipe and pump length up to 5.4 m.
Landia has been a supplier to the Waste Water Industry for more than 30 years and more than 30,000 Landia units are daily in operation around the globe.
Our aim has always been to supply the best quality and the best solutions for our customers and we are definitely not a “self shopping supermarket”! All projects, small or big, involves our Projects Department in order to ensure the best and most economical solution for our clients. We have high focus on energy consumption and Total Life Cycle Costs.
The company was established back in 1933 and have been a supplier to the agriculture business ever since.
Landia probably have the most extensive range of products for handling liquid manure in terms of pumps, mixers and different types of valves. Landia products are known for high quality, long lifetime and low operation costs.
We have been involved with biogas project for 25 years – a business segment that is growing every year. Some of our products are designed based on experience from the biogas industry. For example both the GasMix digester mixing system and the side entry mixer model PowerMix. are based on experience from the biogas industry.
It is our aim to provide products of high quality with low life cycle costs and products that are easy and simple to service. A part of our sales service is consultancy! It is important for the client, and for Landia, that the most suitable solution is chosen. No one wants to have problems with the handling of liquid manure, sludge or food waste! Undersized pumps, blocked pumps and pipes – nothing is more frustrating!
When Landia’s founder, Christian Oelgaard invented the Chopper Pump in 1950, he was determined to solve the problem of clogging manure pumps on dairy farms. He succeeded - and the World’s first chopper pump was born.
Christian was a forward-thinker, but even this distinguished pioneer might not have foreseen how widely the chopper pump would be used today, 70 years later. Manure pumping is still a big item, but solving clogging problems in raw sewage has become the modern day task for the chopper pump. Equipped with a unique hardened steel chopping system, the Landia Chopper Pump makes light of modern day nuisance waste, such as wet wipes, that bring lesser pumps to a clogging, grinding halt.
Christian Oelgaard knew that standard pumps could only pump standard waste, so he invented the Chopper Pump to take care of the really tough applications. The Landia chopper pump is widely used for pumping digester sludge, clarifier scum, food waste, and a wide variety of other municipal and industrial waste streams.