
Manufacturing of precision CNC turned and milled parts in single-part production and small batches

A. GRÖSCHL METALLVERARBEITUNG GmbH
Barbing (Benzstraße 4, 93092)New on Amplifa
About us
A. GRÖSCHL METALLVERARBEITUNG GmbH in Barbing near Regensburg is a family-run supplier of precision CNC turned and milled parts in single-part production and small batches. On 850 sqm of production floor space in two halls, parts are manufactured on 11 CNC machining machines (predominantly Mazak) according to drawings, CAD data or sample parts, including complete machining in a single setup. Materials include stainless steels, free-cutting and structural steels, aluminium, brass, bronze (rotguss) and plastics. In addition, heat treatment and surface finishing are organised through long-standing cooperation partners, and small assemblies are cleaned, assembled and function-tested for delivery ready for installation. Customers come from mechanical and plant engineering, automotive, logistics, production and the trades.
- Site
- Barbing
- Processes
- Heat treatment: hardening, tempering (via partner), CNC milled parts (3- and 5-axis, face, peripheral, profile, contour and slot milling), CAD/CAM programming, manufacturing according to drawings, CAD data or sample parts, Heat treatment (hardening, tempering) via cooperation partners, Design support / manufacturing consulting and part optimisation, Assembly and complete manufacturing of ready-to-install small assemblies incl. functional testing, Cleaning of manufactured parts, Logistics (own vehicle fleet, parcel service, freight forwarder, daily delivery)
- Materials
- Stainless steel, Free-cutting steel, Steel, Aluminium, Brass, Bronze (rotguss), Plastics, Steel & free-cutting steel
- Certificates
- In-house quality management system, ISO 9001 (certified)
- Founded
- 1985
- Industries
- Mechanical and plant engineering, Automotive, Logistics, Services, Trades, Production
- 01
Material stockpiling & disposition
- 02
CAD/CAM programming
- 03
CNC turning
- 04
CNC milling
- 05
Cleaning
- 06
Heat treatment & surface finishing (partner)
- 07
Assembly & functional testing
- 08
Delivery (own vehicle fleet, parcel service, freight forwarder)
Materials & Processes
Stainless steel
Rust-proof and acid-resistant steels such as 1.4057, 1.4112, 1.4301, 1.4305, 1.4404, 1.4541, 1.4571 and 1.4980 for corrosion-resistant precision parts.
Steel & free-cutting steel
Structural steels ST37, ST52, 16MnCr5, C45 and free-cutting steel for load-bearing and easily machinable components.
Aluminium
Lightweight components with optional anodising or hard anodising treatment via partners.
Brass & bronze (rotguss)
For corrosion-resistant, easily machinable components in electronics and connector technology.
Plastics
POM, PA6 and PE1000 for low-wear, electrically insulating parts.
Locations

Barbing
DEHeadquarters, manufacturing and administration
- Lot size
- Single-part production to small batches
- Materials
- Stainless steel, steel, free-cutting steel, aluminium, brass, bronze (rotguss), plastics
- Mazak Nexus 100
- Mazak Nexus 100 MS (twin-spindle)
- Mazak Super Quick Turn 200
- Mazak Quick Turn Smart 200-L
- Mazak Quick Turn 200MB
- Mazak Quick Turn Smart 250-L
- Mazak Quick Turn 250MSY
- Mazak VTC 530-C
- Mazak VCN600
- Mazak CV5-500
- Mazak Variaxis 630-5X II
- Huvema HU 460 x 1000
- Behringer HBP 263 A
Components



Inside the production



Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Machining | – | – | – | Single-part production – Small batches | , Free-cutting steel, Steel (ST37, ST52, 16MnCr5, C45), Aluminium, Brass, Bronze (rotguss), Plastics (POM, PA6, PE1000) |
| Machining | – | X=1740 mm (MAZAK VTC 530-C) × Y=765 mm (Variaxis 630-5X II) × Z=600 mm (VCN600) | – | Single-part production – Small batches | Stainless steel (1.4301, 1.4305, 1.4404, 1.4571), Free-cutting steel, Steel (ST37, ST52, 16MnCr5, C45), Aluminium, Brass, Bronze (rotguss), Plastics (POM, PA6, PE1000) |
| Surface | – | – | – | – | – |
| Heat treatment: hardening, tempering (via partner)Heat treatment | – | – | – | – | – |
| Assembly | – | – | – | – | – |
| Engineering | – | – | – | – | – |
13 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC turning machine | MAZAK Nexus 100 | 1 | Collet D=4-42 mm, max. turning length 350 mm, bar feeder D=4-35 mm (up to 5 m), with tailstock | – | Barbing |
| CNC turning machine (twin-spindle, C-axis, driven tools) | MAZAK Nexus 100 MS | 1 | – | 2006 | Barbing |
| CNC turning machine | MAZAK Super Quick Turn 200 | 1 | – | – | Barbing |
| CNC turning machine | MAZAK Quick Turn Smart 200-L | 1 | Collet D=3-65 mm, max. turning length 500 mm, bar pass-through up to D=61 mm, with tailstock | – | Barbing |
| CNC turning machine (driven tools) | MAZAK Quick Turn 200MB | 1 | Collet D=3-65 mm, max. turning length 500 mm, bar pass-through up to D=65 mm, with tailstock | 2025 | Barbing |
| CNC turning machine | MAZAK Quick Turn Smart 250-L | 1 | Chuck D=15-280 mm, max. turning length 1000 mm, bar pass-through up to D=81 mm, with tailstock | 2016 | Barbing |
| CNC turning machine (twin-spindle, Y-axis, driven tools) | MAZAK Quick Turn 250MSY | 1 | – | 2020 | Barbing |
| 3-axis machining centre | MAZAK VTC 530-C | 1 | X=1740 mm, Y=530 mm, Z=510 mm | 2018 | Barbing |
| 3-axis machining centre | MAZAK VCN600 | 1 | X=1050 mm, Y=600 mm, Z=600 mm | 2025 | Barbing |
| 5-axis machining centre | MAZAK CV5-500 | 1 | X=730 mm, Y=450 mm, Z=470 mm | 2023 | Barbing |
| 5-axis machining centre | MAZAK Variaxis 630-5X II | 1 | X=630 mm, Y=765 mm, Z=400 mm | 2014 | Barbing |
| Conventional lathe | Huvema HU 460 x 1000 | 1 | – | – | Barbing |
| Band saw | Behringer HBP 263 A | 1 | – | – | Barbing |
Additional services
Quality
All parts pass through an in-house quality management system with production-accompanying inspection from material purchasing through production control to delivery logistics, following a zero-defect strategy with state-of-the-art measuring systems.
| Evidence | Barbing |
|---|---|
| In-house quality management system | |
| ISO 9001 (certified) |
History
- 1985
Founded by Alfons Gröschl with production in the garage of his private home in Sarching
- 1988
Construction of the production hall with office building at Benzstraße 4, Barbing
- 1989
Purchase of the first Mazak turning automatic – start of CNC production
- 1990–2000
Steady expansion of the product range and growth of the machine fleet
- 2002
Purchase of the first 5-axis machine, Mazak Variaxis 500-5X
- 2006
Purchase of the twin-spindle turning machine Mazak Nexus 100MS
- 2008
Extension building – doubling of the hall floor space
- 2014
Purchase of the 5-axis machine Mazak Variaxis 630-5X II
- 2016
Purchase of the Mazak QTS 250-L; death of company founder Alfons Gröschl
- 2017
Conversion to a GmbH; management by Gerlinde & Andreas Gröschl
- 2018
Purchase of the 3-axis machine Mazak VTC 530-C
- 2019
Construction of an additional production hall (400 sqm) with warehouse and staff rooms
- 2020
Purchase of the turning machine Mazak QT 250MSY with twin spindles and Y-axis
- 2021
Introduction of an ERP system – digitalisation of the entire workflow
- 2022
Andreas Gröschl becomes sole managing director
- 2023
Purchase of the 5-axis machine Mazak CV5-500
- 2024
Installation of machine extraction and air conditioning of the production hall
- 2025
40th company anniversary; purchase of Mazak VCN600 and Mazak QT200MB