
Manufacturer of industrial pumps, pump spare parts and mechanical seals with its own service and maintenance offering.
L & M Lotzer & Mühlenbruch GmbH
Diepholzer Str. 5, 27751 Delmenhorst · Diepholzer Str. 16, 27751 Delmenhorst (goods receiving)New on Amplifa
About L&M Pumps
L & M Lotzer & Mühlenbruch GmbH, based in Delmenhorst, is a mechanical engineering company specializing in the design and manufacture of new pumps, pump spare parts and mechanical seals. The product portfolio includes centrifugal pumps (process and slurry pumps), positive displacement pumps such as progressive cavity pumps, as well as spare parts in OEM quality for pumps from manufacturers such as ANDRITZ, SULZER, Warman, Allweiler, NETZSCH or SEEPEX. Manufacturing takes place in the company's own machine park; spare parts are checked for dimensional accuracy, performance, materials and smooth running by balancing. In addition to new pump construction, the company offers repairs in its own workshops, on-site service, laser alignment and technical consulting from planning to commissioning. On more than 8,000 m² of warehouse space, L&M stocks more than 100,000 items to ensure short delivery times. Customers come from the paper and pulp, chemical and food industries as well as water management and biogas technology. The company is a subsidiary of WTR Group AB (Sweden) and operates worldwide.
- Site
- Delmenhorst
- Processes
- Manufacture of new pumps (centrifugal and positive displacement pumps), Manufacture of pump spare parts in OEM quality (centrifugal pumps), Manufacture of spare parts for progressive cavity pumps (rotor & stator), Balancing of spare parts (smooth running), Manufacture of mechanical seals (including metal bellows and O-ring mechanical seals CHEMOPAC), Hardfacing of conveying screws, Pump repair in own workshops and on-site repair, Laser alignment of pumps
- Materials
- 1.4571 (DIN), AM 350, Hastelloy C, FKM, Carbon, Tungsten carbide (WC), SC (silicon carbide), Silicon carbide (SC)
- Industries
- Paper and pulp industry, Chemical industry, Food industry, Water management / water treatment, Biogas
- 01
Engineering & design
- 02
Manufacture of new pumps and spare parts
- 03
Balancing / testing
- 04
Warehousing & shipping
- 05
Service, repair & on-site deployment
Materials & Processes
1.4571 (DIN)
Stainless steel for metal parts of mechanical seals.
AM 350
Stainless steel for metal bellows in mechanical seals.
Hastelloy C
Highly corrosion-resistant material for metal parts and springs, e.g. standard in the CHEMOPAC Type SAJ.
FKM
Elastomer, standard for O-rings in mechanical seals.
Carbon
Mating ring counterface material in sealing faces.
Tungsten carbide (WC)
Wear-resistant face material for mechanical seals.
Silicon carbide (SC)
Wear-resistant face material for mechanical seals.
Locations
Delmenhorst, Diepholzer Str. 5
DEHeadquarters, administration, manufacturing and workshops
Delmenhorst, Diepholzer Str. 16
DEGoods receiving and warehouse
Components & Products






Inside the production

Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of new pumps (centrifugal and positive displacement pumps)Assembly | – | – | – | – | – |
| Manufacture of pump spare parts in OEM quality (centrifugal pumps)Machining | – | – | – | – | – |
| Manufacture of spare parts for progressive cavity pumps (rotor & stator)Machining | – | – | – | – | – |
| Balancing of spare parts (smooth running)Surface | – | – | – | – | – |
| Manufacture of mechanical seals (including metal bellows and O-ring mechanical seals CHEMOPAC)Assembly | D1 h6 | – | – | – | DIN 1.4571, AM 350, Hastelloy C, FKM, Kohle, WC, SC |
| Hardfacing of conveying screwsSurface | – | – | – | – | – |
| Pump repair in own workshops and on-site repairAssembly | – | – | – | – | – |
| Laser alignment of pumpsAssembly | – | – | – | – | – |
| Manufacture of screen baskets, propellers and conveying screws for biogas plantsMachining | – | – | – | – | – |
| Pump design and technical consulting (planning to commissioning)Engineering | – | – | – | – | – |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| State-of-the-art machine park (not further specified) | – | – | – | – | Delmenhorst |
Additional services
Reference customers
History
Over 35 years of experience in the design and manufacture of new pumps, spare parts and seals
Subsidiary of WTR Group AB (Sweden)