High-performance polymer springs, buffer and damping systems for rail vehicles, mechanical engineering and industry
DUREL GmbH
57638 Neitersen (Westerwald), GermanyNew on Amplifa
About DUREL
DUREL GmbH, headquartered in Neitersen in the Westerwald region, develops and manufactures high-performance polymer springs made from thermoplastic polymer as well as buffer, damping and bearing systems for draft and coupler equipment. The products are manufactured using a worldwide patented production process that gives the springs their damping and stability properties, and are used primarily in rail vehicle technology as well as in general mechanical engineering and industrial applications. In addition to buffer springs, draft gear springs and coupler springs, the product range includes cellulose and rubber buffers, wheel buffers, gearbox buffers, Vulkollan® buffers, vibration buffers, damping elements, metal-rubber disks, universal mounts, pipe joint bells, hole covers and complete spring assemblies for heavy-duty couplers. DUREL supplies OEMs, component manufacturers and operators worldwide, and also offers custom spring systems in small quantities as well as overhaul, repair and retrofit of existing spring systems. Through a global sales network with partners in Europe, Asia and North and South America, the company operates internationally.
- Site
- Neitersen
- Processes
- Manufacture of high-performance polymer springs (patented production process), Manufacture of buffer springs, draft gear springs, coupler springs, Manufacture of cellulose buffers, rubber buffers, wheel buffers, gearbox buffers, Vulkollan® buffers, Manufacture of vibration buffers, Manufacture of damping elements, Manufacture of metal-rubber disks (elastic mounting), Manufacture of universal mounts, Manufacture of pipe joint bells (cast, shot-blasted, ground, deburred, finished machined)
- Materials
- High-performance polymer (thermoplastic), Natural rubber (NK, vibration grade), Rubber 75° shore, oil-resistant, weather-resistant, Vulkollan®, Cellulose, Structural steel (cover plates/base plates), Metal disk material, Casting material for pipe joint bells
- Certificates
- ISO 9001:2015, ISO 9001
- Industries
- Rail vehicle technology, Crane and conveying technology, Mechanical engineering, Mining / open-cast and underground mining vehicles, Agricultural machinery, Metal processing
- 01
Research & Development
- 02
Technical consulting and design
- 03
Manufacture of polymer springs (patented process)
- 04
Assembly of complete modules
- 05
Quality control in all phases
- 06
Sales and worldwide delivery
- 07
Overhaul, repair and retrofit
Materials & Processes
High-performance polymer (thermoplastic)
Material of the patented high-performance polymer springs with high energy absorption and maintenance-free operation
Natural rubber (vibration grade, 45–70° shore-A)
Spring bodies for vibration buffers, universal mounts and damping elements
Vulkollan®
Material for buffers in industrial applications
Rubber 75° shore, oil-resistant and weather-resistant
Material for hole covers
Cellulose
Material for cellulose buffers in crane and conveying technology
Structural steel S235JRG2
Cover and base plates of vibration buffers and universal mounts
FeP03
Metal disk material of the metal-rubber disks
EN-GJMW-400-5 (DIN EN 1562)
Casting material for pipe joint bells, cast, shot-blasted, ground, deburred and galvanically zinc-plated
Locations
Neitersen
DEHeadquarters, production and sales
- Lot size
- also small quantities
- Materials
- High-performance polymer, natural rubber, Vulkollan®, cellulose, steel, castings
Components & Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of high-performance polymer springs (patented production process)Plastics | – | – | – | small quantities | High-performance polymer (thermoplastic), Natural rubber, Vulkollan |
| Manufacture of buffer springs, draft gear springs, coupler springsPlastics | – | – | – | – | High-performance polymer |
| Manufacture of cellulose buffers, rubber buffers, wheel buffers, gearbox buffers, Vulkollan® buffersPlastics | – | – | – | – | Cellulose, Rubber, Vulkollan |
| Manufacture of vibration buffersPlastics | – | – | – | – | Natural rubber (45°/60°/70° shore-A), S235JRG2 (cover plates) |
| Manufacture of damping elementsPlastics | – | – | – | – | Rubber (hard/medium/soft) |
| Manufacture of metal-rubber disks (elastic mounting)Plastics | – | – | – | – | FeP03 (metal disks), Natural rubber 60° shore-A |
| Manufacture of universal mountsPlastics | – | – | – | – | S235JRG2 (base plates), Natural rubber compound in vibration grade |
| Manufacture of pipe joint bells (cast, shot-blasted, ground, deburred, finished machined)Casting | – | – | – | – | EN-GJMW-400-5 (DIN EN 1562) |
| Manufacture of hole coversPlastics | – | – | – | – | Rubber 75° shore, oil-resistant, weather-resistant |
| Manufacture of complete modules / spring assemblies for heavy-duty couplersAssembly | – | – | – | – | High-performance polymer, Metal (housing) |
| Custom spring systems, development and manufacture of tailored solutionsEngineering | – | – | – | small quantities | High-performance polymer |
| Maintenance, overhaul, modernization, repair and retrofit of spring systemsAssembly | – | – | – | – | – |
| Research & development of spring systems, spring designEngineering | – | – | – | – | – |
| Quality inspections in all phases of development and production according to DIN ISO 9001:2015Testing | – | – | – | – | – |
Additional services
Reference customers
Quality
DUREL springs are manufactured according to the requirements of a quality management system based on DIN ISO 9001:2015. Regular quality inspections take place in all phases of development and production.
| Evidence | Neitersen |
|---|---|
| ISO 9001 |
History
- 1992
Start of collaboration with inventor Rudi Mertens to develop the high-performance polymer spring
- 1995
First applications with DUREL springs in service
- 2001
EBA approval
- 2003
Manufacturer-specific product qualifications
- 2004
Expansion of the global market
- 2006
Introduction of the DUREL compact spring DP30K
- 2007
Relocation to the Westerwald site Ingelbach-Bahnhof with larger production capacity
- 2008
For the first time over 100,000 springs in service; initial ISO 9001 certification
- 2009
Expansion of in-house manufacturing depth through investment in new production processes
- 2010
Founding of the joint venture "Surlon Durel Springs Pvt. Ltd."
- 2011
Half a million springs successfully in service
- 2012
Construction of a larger production facility