Grunewald
Provides hybrid manufacturing services combining sand binder jetting 3D printing for complex casting cores/molds with 5-axis CNC machining and low-pressure sand casting for automotive and aerospace components, reducing lead times for complex castings from months to days.
- CEO / Founder
- Ulrich Grunewald
- Team Size
- 51-200
- Stage
- Active
- Total Funding
- €278,691
- Latest Round
- Bootstrapped
Technology & Products
Key Products
3D Printed Sand Cores & Molds; Low-Pressure Sand Casting; 5-Axis CNC Machining; Rapid Prototyping; Quality Control & 3D Scanning
Technological Advantage
CLAIMED: Seamless transition from CAD to finished cast part without physical tooling. VERIFIED: ExOne case study confirms 75% of sales now derived from 3D printing workflows, successfully offsetting declines in conventional automotive tool manufacturing. DEFENSIBLE: Proprietary hybrid workflow integration and established automotive/aerospace quality certifications.
Differentiation
Value Proposition
Reduces lead times for complex casting molds from months to days by replacing traditional pattern-making with 3D printed sand cores, while integrating 5-axis machining and in-house casting to deliver near-net-shape metal components with 75% of revenue now driven by AM-enabled workflows.
How They Differentiate
Unlike pure-play AM service bureaus (Protolabs) or printer OEMs (Voxeljet), Grunewald operates as a vertically integrated foundry and machine shop. Delivers end-to-end cast-to-machined parts in 2-3 weeks vs 8-12 weeks for competitors relying on outsourced foundries. Integrates 5-axis machining and 3D scanning in-house, reducing handling costs by ~30% compared to distributed network models.
Market & Competition
Target Customers
Automotive and aerospace OEMs requiring complex, low-volume cast components and rapid tooling.
Industry Verticals
Automotive; Aerospace; Industrial Machinery
Competitors
Voxeljet; Fraunhofer IFAM; Protolabs
Growth & Milestones
Growth Metrics
3D printing share of total sales increased from ~50% to 75% following ExOne printer integration, offsetting declines in conventional tool manufacturing.
Major Milestones
Founded in 1963; Integrated ExOne 3D sand printing system; Expanded to multiple sites (Bocholt, Irxleben, Stade); Shifted 75% of revenue to AM-driven workflows