
CNC machining, model making, mould making and prototypes for large parts up to 7 m from Bockhorn

Carstengerdes Modellbau & Zerspanung GmbH
Bockhorn/Petersgroden · Osterholz-ScharmbeckNew on Amplifa
Family-owned company for model making and machining
Carstengerdes Modellbau & Zerspanung GmbH is a family-owned company from Bockhorn/Petersgroden on the Jade Bight with around 55 employees. The company manufactures CNC-milled and CNC-turned parts on 5-axis machining centres up to 7,000 x 4,000 x 1,750 mm as well as turned parts up to Ø 670 x 1,500 mm with 6-side complete machining. In addition, the range of services includes model equipment for foundries, tool and mould making, jig and fixture construction, production-near prototypes, PU/vacuum casting and RIM, pasting of large parts as well as CAD/CAM design. Materials machined include aluminium, steel, stainless steel, titanium, nickel-based alloys, non-ferrous metals, plastics, GFRP/CFRP and wood. Customers come from foundry technology, automotive, aerospace, defence, shipbuilding, wind energy and railcar construction. All work steps from design to delivery are carried out in-house on 3,500 m² of production floor space in three production halls.
- Site
- Bockhorn/Petersgroden
- Processes
- CNC milling (5-axis), CNC turning, Turn-mill machining with 6-side machining (main/sub spindle), Model making (model equipment, foundry pattern making, sectional construction), Pasting (surface build-up & finish for large parts), Tool and mould making, Prototype construction (production-near prototypes), PU casting / vacuum casting / RIM
- Materials
- Aluminium, Steel, Stainless steel, Titanium, Nickel-based alloy, Non-ferrous metals / non-ferrous alloys, Plastics, PU (polyurethane)
- Certificates
- ISO 9001:2015, EN 9100:2018, ISO 9001, EN 9100
- Founded
- 1987
- Employees
- approx. 55
- Industries
- Foundry technology, Automotive, Aerospace, Defence, Shipbuilding, Wind energy
- 01
Design (CAD/CAM)
- 02
CAM programming
- 03
CNC machining (milling/turning)
- 04
Model making / tool and mould making
- 05
Pasting
- 06
Prototype construction / plastics manufacturing
- 07
Quality inspection (3D metrology)
- 08
Transport / delivery
Locations

Bockhorn/Petersgroden
DEHead office with 3 production halls (3,500 m²)
- Lot size
- Single part to series
- Materials
- Aluminium, steel, stainless steel, titanium, nickel-based alloys, non-ferrous metals, plastics, GFRP/CFRP, wood
Osterholz-Scharmbeck
DEBranch office (production planning)
Manufactured parts




Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC milling (5-axis)Machining | – | 7000 mm × 4000 mm × 1750 mm | – | single part – series | Aluminium, Steel, Stainless steel, Titanium, Nickel-based alloys, Non-ferrous metals, Plastics, GFRP, CFRP, Wood |
| CNC turningMachining | – | 1500 mm × Ø 670 mm | – | single part – series | Aluminium, Steel, Stainless steel, Titanium, Nickel-based alloys, Non-ferrous metals, Plastics |
| Turn-mill machining with 6-side machining (main/sub spindle)Machining | – | 1500 mm × Ø 670 mm | – | – | Plastics, Non-ferrous metals, Steel, Stainless steels, Titanium, Nickel-based alloys |
| Model making (model equipment, foundry pattern making, sectional construction)Casting | 0.05 mm (measuring accuracy of Faro measuring arm, Ø 3 m) | – | – | – | Metals, Non-ferrous metals, Plastics, GFRP, CFRP, Wood-based materials |
| Pasting (surface build-up & finish for large parts)Surface | – | – | – | – | – |
| Tool and mould makingEngineering | – | – | 10 t (steel tool blank) | – | Metals, Non-ferrous metals, Plastics, GFRP, CFRP, Wood-based materials |
| Prototype construction (production-near prototypes)Engineering | – | – | – | 1st part – pilot series | PU, Plastics |
| PU casting / vacuum casting / RIMPlastics | – | – | – | – | PU |
| Design CAD/CAMEngineering | – | – | – | – | – |
| GFRP/CFRP part manufacturing (laminating, with partners M&D Composites and HaindlPlastics | – | over 6 m (GFRP part) | – | – | GFRP, CFRP |
| 3D metrology / quality inspection (3D coordinate measuring machine, Faro measuring arms)Testing | 0.05 mm (measuring arm Ø 3 m) | 4000 mm (measuring range) | – | – | – |
| Two-component resin metering and mixing (epoxy)Surface | – | – | 200 l drum | – | Epoxy resin |
| Assembly fixture construction / fixture and jig makingAssembly | – | – | – | – | Metals, Plastics, Wood-based materials |
29 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 5-axis machining centre | EiMa Gamma L | 1 | X=7000 mm, Y=4000 mm, Z=1750 mm, 15,000 rpm | – | Bockhorn |
| 5-axis machining centre | Tiltenta 11-3600 | 1 | 3600 x 1100 x 900 mm, 15,000 rpm | – | Bockhorn |
| 5-axis machining centre | Wemas VZP 5A 3200 | 1 | 3200 x 2250 x 1200 mm, 12,000 rpm | – | Bockhorn |
| 5-axis machining centre | DMG MORI DMU 125 monoBlock | 1 | 1335 x 1250 x 900 mm, 18,000 rpm | – | Bockhorn |
| 5-axis machining centre | DMG MORI DMU 95 monoBlock | 2 | 950 x 850 x 650 mm (18,000 and 20,000 rpm) | – | Bockhorn |
| 5-axis machining centre | DMG MORI DMU 65 monoBlock | 1 | 735 x 650 x 560 mm, 14,000 rpm | – | Bockhorn |
| 5-axis machining centre | Homag BMG 511 | 1 | 3300 x 1550 x 300 mm, 24,000 rpm | – | Bockhorn |
| 5-axis machining centre | Acura 85 Marathon SR518 | 1 | 900 x 850 x 700 mm, 18,000 rpm | – | Bockhorn |
| 5-axis machining centre | Acura 50 – 500 | 1 | 500 x 550 x 550 mm, 18,000 rpm | – | Bockhorn |
| 5-axis machining centre | TRIMILL VF 4535 | 1 | 4500 x 3500 x 1500 mm, 14,000 rpm | – | Bockhorn |
| 5-axis machining centre | CMS MX 5 | 1 | X=3000 mm, Y=3800 mm, Z=1400 mm | – | Bockhorn |
| 3-axis machining centre | Wemas VZP 3200 | 1 | 3200 x 2250 x 800 mm, 10,000 rpm | – | Bockhorn |
| 3-axis machining centre | DMG MORI DMC 635 V | 1 | 635 x 510 x 460 mm, 8,000 rpm | – | Bockhorn |
| 3-axis machining centre | Mikron VCE 1200 Pro | 1 | 1200 x 600 x 675 mm, 10,000 rpm | – | Bockhorn |
| 3-axis machining centre | DMG MORI DMC 1450 V | 1 | 1450 x 700 x 550 mm | – | Bockhorn |
| CNC turn-mill centre | MAZAK Integrex i-250H ST | 1 | max. turning Ø 670 x 1500 mm, 6-side complete machining, 5-axis simultaneous machining, 12,000 rpm | – | Bockhorn |
| CNC lathe with milling function, Y-axis, sub spindle | MAZAK QT 250 MSY x 1000 | 1 | max. turning Ø 380 mm, max. machining length 1005 mm | – | Bockhorn |
| CNC lathe | DMG MORI CLX 450 TC | 1 | max. turning Ø 400 x 1100 mm, 6-side complete machining, turn-mill spindle compactMASTER 12,000 | – | Bockhorn |
| CNC lathe | DMG MORI CTX 510 ecoline | 1 | max. turning Ø 510 x 1050 mm, driven tools (brochure: turning Ø 465 x 1050 mm, max. swing Ø 680 | – | Bockhorn |
| Conventional lathe | Weiler C35HD | 1 | max. turning Ø 180 x 800 mm, max. swing Ø 360 mm | – | Bockhorn |
| Bar loading magazine | Top Automazioni X-FILES S 380 | 1 | Bar length 1200–3200 mm, max. bar Ø 80 mm | – | Bockhorn |
| Bar loading magazine | Samsys Multi 4000 | 1 | Bar length 150–1240 mm, max. bar Ø 59 mm | – | Bockhorn |
| Handling/loading robot | Robojob Pallet-Load Double 70 kg | 1 | 70 kg pallet, 45 kg handling weight incl. camera + AI | – | Bockhorn |
| Metering and mixing system (two-component) | Nodopox Nodopox 200 | 1 | 200 l drum | – | Bockhorn |
| Tool presetting device | Zoller venturion 450 | 1 | Z 620 mm | – | Bockhorn |
| 3D coordinate measuring machine | – | 1 | Measuring range 1000 x 1600 x 800 mm, software PolyWorks Inspector | – | Bockhorn |
| Faro measuring arm Edge (7 axes, handheld laser scanner, Laser Line Probe HD) | Faro Edge | 1 | Measuring range 2700 mm | – | Bockhorn |
| Faro measuring arm Quantum S (7 axes) | Faro Quantum S | 1 | Measuring range 4000 mm | – | Bockhorn |
| CAD/CAM workstations | Mastercam (12), Visi (4), AutoCAD Inventor (3) | 19 | – | – | Bockhorn |
Additional services
Reference customers
Quality assurance
The company is certified to ISO 9001:2015 and certified to EN 9100:2018. Quality assurance includes a 3D coordinate measuring machine, Faro measuring arms (up to 4,000 mm measuring range, accuracy 0.05 mm) with PolyWorks Inspector as well as a trained DGQ metrology technician for measurement series and measurement reports.
| Evidence | Bockhorn/Petersgroden |
|---|---|
| ISO 9001 | |
| EN 9100 |
Company history
- 1987
Founded by master pattern maker Herbert Carstengerdes on 1 November 1987 as a one-man business; specialisation in model equipment for foundries.
- 2008
Construction of a first production hall.
- 2010
Construction of another production hall; Hendrik Carstengerdes joins the management and takes over the succession of the company.
- 2016
Construction of a third production hall; today 3,500 m² of production floor space in three halls.
- 2025
Appointment of three authorised officers (Nils Langer, Jan Kuhlmann, Robin Wilken) as the second management level.