RDA Raters Sealing Technology – Fertigung

Manufacture of custom precision seals, guides and turned parts made of polyurethane in single-item and series production.

RDA Dichtungstechnik Ludger Raters

Ascheberg (Breil 8)New on Amplifa

17 yearsIn operation (according to website)

14Employees

1Location

4 mMax. seal diameter

24 hProduction/delivery time

1099Customers

About us

RDA Raters Sealing Technology is an owner-managed family business in Ascheberg with 14 employees, specialized in the manufacture and distribution of precision seals. Custom seals, guides and turned parts made of polyurethane are produced in standard and special materials, from the single seal for prototypes to series production in economic quantities, with production within 24 hours and seals up to 4 meters in diameter. Production includes turning, milling and grinding as well as injection molding and casting processes for the company's own PU materials. The products are used in all industrial sectors except the OEM automotive industry, including mechanical engineering, hydraulics, pumps and valves, vacuum technology, pneumatics, medical technology, plant engineering, energy generation, process engineering and the supply industry. The company cites 17 years of existence and 1,099 customers.

Site: Ascheberg
Processes: Manufacture of custom seals (single-item and series production), Turning (turned parts / machining of sealing materials), Milling, Grinding, Manufacture of guides, Production of turned parts, Injection molding (production of PU materials), Casting processes (casting of PU materials)
Materials: H-PU 95 (polyurethane, hydrolysis-resistant, FDA approval), H-PU 95 blue (thermoplastic elastomer, food-safe), PU FDA MDx (food-safe, metal-detectable, EU 1935/2004, EU 2023/2006), HPU Soft (PU for pneumatics/hydraulics), H-PU 55 D (polyurethane for slip ring seals), C-HPU 96 (cast PU, FDA compliant), C-HPU 57 (cast PU for high-pressure applications), C-HPU 72 (cast/injection-molded, for cable pulleys, rolling elements, backup rings; -20°C to 110°C)
Certificates: ISO certification (type not specified in detail), ISO certification (type not specified), EN 10204 works certificates
Employees: 14
Industries: Mechanical engineering, Hydraulics, Pumps and valves, Vacuum technology, Pneumatics, Medical technology

01
Customer consulting (field service or on site at the plant)
02
Material selection (PU program)
03
Injection molding/casting of PU materials or semi-finished part machining
04
Turning
05
Milling
06
Grinding
07
Works certificates in accordance with EN 10204
08
Special/single packaging, color marking, shipping

Locations

Ascheberg

Headquarters and production

Part weight / size: Seals up to 4 m diameter
Lot size: Single seal (prototype) to series production
Materials: Polyurethane (H-PU, C-HPU, LT-PU, SL-PU)

Production sequence sealing technology (turning, milling, grinding)
Injection molding and casting processes for PU materials

Components

**Seal made of H-PU 95**Turning/milling/grinding · Mechanical engineering, hydraulics

**Slip ring seal made of H-PU 55 D**Machining · Hydraulics

**LT-PU seal for refrigeration applications**Machining · Mobile hydraulics

**Pneumatic seal made of SL-PU**Machining · Pneumatics

**High-pressure seal made of C-HPU**Casting processes · Process engineering

Inside the production

RDA Raters Sealing Technology, Ascheberg

Materials program of the sealing technology

Industries

Mechanical engineeringHydraulicsPumps and valvesVacuum technologyPneumaticsMedical technologyPlant engineeringEnergy generationProcess engineeringSupply industryTechnical trade

Processes & technical limits

Processes	Tolerance	Max. part	Weight	Lot size	Materials
Manufacture of custom seals (single-item and series production)Plastics	–	–	–	Single seal for prototypes – Series production	Polyurethane (H-PU, C-HPU, LT-PU, SL-PU)
Turning (turned parts / machining of sealing materials)Machining	–	–	–	–	H-PU 95, H-PU 95 blue, H-PU 55 D, C-HPU 72, LT-PU plus, SL-PU
MillingMachining	–	–	–	–	H-PU 95, H-PU 55 D, C-HPU 72, SL-PU
GrindingMachining	–	–	–	–	H-PU 95, H-PU 55 D, SL-PU
Manufacture of guidesPlastics	–	–	–	–	–
Production of turned partsMachining	–	–	–	–	–
Injection molding (production of PU materials)Plastics	–	–	–	–	H-PU 95, C-HPU 72
Casting processes (casting of PU materials)Plastics	–	–	–	–	C-HPU 96, C-HPU 57, C-HPU 72
Works certificates in accordance with EN 10204, special packaging, color markingTesting	–	–	–	–	–

1 Anlagen & Maschinen

Machine	Manufacturer / model	Quantity	Working area	Year built	Site
Sealing technology production equipment (details not specified)	–	–	–	–	Ascheberg

Additional services

Single-item and series production of sealsManufacture of custom seals, guides and turned partsProduction within 24 hoursSeals up to 4 meters in diameterCustomer consulting by technical field service and at the plantWorks certificates in accordance with EN 10204Special packaging and single packagingColor markings and packaging units

Reference customers

Well-known manufacturers from the fields of mechanical engineering, hydraulics, pumps and valves,

Quality

The company manufactures in accordance with ISO certification (certificate available for download, type not specified) and issues works certificates in accordance with EN 10204.

Evidence	Ascheberg
ISO certification (type not specified)
EN 10204 works certificates

History

17 years in operation according to the company website (no founding year given); 1,099 customers.