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4ma 3ma – Fertigung

In-house manufacture and adaptation of children's wheelchairs, seating shells and electric wheelchairs for children and adolescents

4ma 3ma Logo

4ma 3ma Rehatechnik GmbH

Dortmund (HQ) · Cologne · HamburgNew on Amplifa

Over 20 yearsSpecialisation in children's wheelchairs
4 locationsDortmund (HQ and workshop), Cologne, Hamburg
3 kgTotal weight of the Duplikart mini wheelchair
ISO 9001:2015ZDH-ZERT, field of rehabilitation technology and

About 4ma 3ma Rehatechnik

4ma 3ma Rehatechnik GmbH specialises in supplying children and adolescents with wheelchairs. The company operates its own workshop at its headquarters in Dortmund and offers both in-house manufacture of especially lightweight children's wheelchairs as custom builds and the individual adaptation of standard wheelchairs from renowned manufacturers such as Meyra, Otto Bock, Pro Activ, SORG and Sopur. Its in-house production includes made-to-measure active wheelchairs, the Duplikart mini wheelchair made of an aluminium frame with glass-fibre-reinforced Lego Duplo elements (total weight 3 kg), tilt wheelchairs with seat tilting, and electric wheelchairs with an anatomically adapted, growing 4ma3ma seating system. In addition, the company adapts electric drives and residual-strength amplifiers from Alber, AAT and SOPUR to standard wheelchairs and supplies handbikes and adaptive bikes. Besides its Dortmund headquarters, the company maintains branches in Cologne and Hamburg.

Site
Dortmund
Processes
In-house manufacture of wheelchairs (custom builds/made-to-measure children's wheelchairs), Adaptation of standard wheelchairs (Meyra, Otto Bock, Pro Activ, SORG, Sopur) incl. individual, Manufacture of anatomically adapted seating shells/seating systems (4ma3ma seating system, growing), Conversion/adaptation of electric wheelchairs with seating system, Adaptation of electric drives/residual-strength amplifiers to standard wheelchairs (Alber, AAT,, Supply with handbikes/adaptive bikes (also with electric assistance), Consulting, conception and documentation of wheelchair supply, Rehabilitation custom builds (certified field of activity)
Materials
Aluminium (frames), Glass-fibre-reinforced plastic (Lego Duplo plate for back shell), Aluminium, Glass-fibre-reinforced plastic
Certificates
DIN EN ISO 9001:2015, Prequalification § 126 para. 1 SGB V (Dortmund), Prequalification § 126 para. 1 SGB V (Cologne), Prequalification § 126 para. 1 SGB V (Hamburg), ISO 9001:2015, PQ § 126 SGB V (GPQG)
Industries
Rehabilitation technology, Medical supply store / assistive device supply, Paediatric and adolescent rehabilitation
  1. 01

    Consulting and conception of wheelchair supply

  2. 02

    Construction/in-house manufacture or adaptation of the seating systems

  3. 03

    Assembly and adjustment of the wheelchair

  4. 04

    Adaptation to growth and follow-up care

  5. 05

    Documentation of the supply

Materials and Processes

Alu

Aluminium

Frame construction of the in-house wheelchairs and the Duplikart to achieve very low weights.

GFK-Kunststoff

Glass-fibre-reinforced plastic

Anatomically shaped back shell of the Duplikart, made from a glass-fibre-reinforced Lego Duplo plate.

Locations

Standort Dortmund (Baumstraße)

Dortmund (Baumstraße)

DE

Headquarters, workshop and consulting

Lot size
Single-item production (custom build)
Materials
Aluminium, glass-fibre-reinforced plastic
  • Own workshop for wheelchair construction

Dortmund (Kirchenstraße)

DE

Further certified location (rehabilitation technology and rehabilitation custom builds)

Lot size
Single-item production
Materials
Aluminium, glass-fibre-reinforced plastic
Standort Cologne (Holweide)

Cologne (Holweide)

DE

Branch, consulting and supply

Lot size
Single-item production
Materials
Aluminium, glass-fibre-reinforced plastic
Standort Hamburg (Altona)

Hamburg (Altona)

DE

Branch, consulting and supply

Lot size
Single-item production
Materials
Aluminium, glass-fibre-reinforced plastic

In-House Builds and Products

In-house wheelchair XS for small children with limited strength
In-house wheelchair XS for small children with limited strengthCustom build · Rehabilitation technology
Duplikart active driving seat (mini wheelchair from approx. 1 ½ years)
Duplikart active driving seat (mini wheelchair from approx. 1 ½ years)Aluminium in-house build · Paediatric rehabilitation
Tilt-wheelchair in-house build with seat tilting
Tilt-wheelchair in-house build with seat tiltingCustom build · Rehabilitation technology
Handbike / adaptive bike with electric assistance
Handbike / adaptive bike with electric assistanceAdaptation · Mobility
In-house wheelchair Tuning-Kid with active driving setup
In-house wheelchair Tuning-Kid with active driving setupCustom build · Rehabilitation technology
Bergh Special custom build
Bergh Special custom buildCustom build · Rehabilitation technology

Inside the production

Adapted standard wheelchair
Adapted standard wheelchair
Adapted standard wheelchair
Adapted standard wheelchair
Duplikart active driving seat
Duplikart active driving seat
Tilt-wheelchair in-house build
Tilt-wheelchair in-house build
Handbike on an in-house wheelchair
Handbike on an in-house wheelchair
Duplikart with Lego Duplo elements
Duplikart with Lego Duplo elements
Team 4ma 3ma
Team 4ma 3ma

Industries

Rehabilitation technologyMedical supply store / assistive device supplyPaediatric and adolescent rehabilitation

Processes & technical limits

ProcessesToleranceMax. partWeightLot sizeMaterials
In-house manufacture of wheelchairs (custom builds/made-to-measure children's wheelchairs)Assembly––3 kg (Duplikart, total weight)–Aluminium, glass-fibre-reinforced plastic (Lego Duplo plate)
Adaptation of standard wheelchairs (Meyra, Otto Bock, Pro Activ, SORG, Sopur) incl. individualAssembly–––––
Manufacture of anatomically adapted seating shells/seating systems (4ma3ma seating system, growing)Assembly–––––
Conversion/adaptation of electric wheelchairs with seating systemAssembly–––––
Adaptation of electric drives/residual-strength amplifiers to standard wheelchairs (Alber, AAT,Assembly–––––
Supply with handbikes/adaptive bikes (also with electric assistance)Assembly–––––
Consulting, conception and documentation of wheelchair supplyEngineering–––––
Rehabilitation custom builds (certified field of activity)Assembly–––––

Additional services

In-house manufacture of children's wheelchairs (custom builds, especially lightweight wheelchairs)Adaptation of standard wheelchairs (Meyra, Otto Bock, Pro Activ, SORG, Sopur)Duplikart – mini wheelchair/active driving seat for toddlersTilt-wheelchair in-house build with seat tiltingElectric wheelchairs with the anatomically adapted 4ma3ma seating systemHandbikes / adaptive bikes (also with electric assistance)Electric drive/residual-strength amplifier on standard wheelchairs (Alber, AAT, SOPUR)Consulting and adaptation, adaptation to growthOwn workshop

Quality and Certification

The company maintains a quality management system in accordance with DIN EN ISO 9001:2015 (ZDH-ZERT, register no. Q1 0110098) for the field of rehabilitation technology and rehabilitation custom builds at both Dortmund locations. In addition, the Dortmund, Cologne and Hamburg locations are prequalified in accordance with § 126 para. 1 SGB V by the GPQG.

EvidenceDortmund
ISO 9001:2015
PQ § 126 SGB V (GPQG)

History

  1. For over 20 years specialisation in the adaptation and in-house manufacture of children's wheelchairs; the exact year of foundation is not specified.

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