Precision machining tools for drilling, countersinking and reverse machining - development, production and contract manufacturing in Esslingen.
Hermann Bilz GmbH & Co KG
Esslingen (Headquarters)New on Amplifa
About Hermann Bilz
Hermann Bilz GmbH & Co KG is an independent family company founded in 1935 at the Esslingen location that develops, produces and distributes high-quality and innovative tool systems for machining technology. The product range includes precision tools for solid drilling (Ø 5-250 mm), countersinking and reaming, reverse machining, indexable inserts and special shrink-fit chucks, including special tool manufacturing with over 30,000 implemented special projects. Own contract manufacturing offers turning/milling, cylindrical and 5-axis grinding, deep-hole drilling, wire EDM, brazing, blasting and laser marking; the Esslingen Grinding Center handles regrinding, sharpening and recoating. Materials of the machined applications range from steel and cast iron to aluminum, stainless steel, brass and copper through to special alloys and titanium. The precision tools are used worldwide by manufacturers in mechanical engineering, the automotive industry as well as the electrical and aviation industries; distribution is via a worldwide dealer network.
- Site
- Esslingen
- Processes
- Reverse machining / reverse countersinking, Solid drilling, Countersinking & reaming (taper countersinks), Contract manufacturing: turning and milling on turn-mill centers and 5-axis machining centers, Contract manufacturing: external cylindrical grinding, Contract manufacturing: internal cylindrical grinding, Contract manufacturing: deep-hole drilling, Contract manufacturing: 5-axis grinding on tool grinding machines
- Materials
- Steel, Cast iron, Aluminum, Non-ferrous metals, Stainless steel, Special alloys and titanium, Brass, Copper
- Certificates
- ISO 9001:2015
- Founded
- 1935
- Industries
- Mechanical engineering, Automotive, Hydraulics/Pneumatics, Energy and drive technology, Aviation industry, Electrical industry
- 01
Consulting & Tool Engineering (Application Technology, Product Configurator)
- 02
Development & Design
- 03
Tool Manufacturing (Grinding, EDM, Brazing, Coating)
- 04
Contract Manufacturing & Regrinding (Grinding Center Esslingen)
- 05
Worldwide Distribution via Dealer Network
Materials & Processes
Steel
Main material for drilling and countersinking tools and application examples such as CK 45, 42CrMo4V, 20MnCr4.
Cast iron (GG/GJS, e.g. GG26, GGG50)
Machining material for drilling and countersinking tools, e.g. GJS-600-3 in applications.
Aluminum (e.g. G-AlSi12)
Machining material among others for WSP chamfer countersinks and PKD cutting inserts.
Stainless steel (e.g. X15Cr13)
Machining material with suitable cutting material grades (P5/P9 grades).
Special alloys and titanium
Machining material for demanding applications e.g. in the FLX program.
Brass
Machining material for carbide taper countersinks and configurator applications.
Copper
Tough machining material for HSS taper countersinks.
Non-ferrous metals
A wide variety of non-ferrous metals as machining materials for drilling tools.
Locations
Esslingen
DEHeadquarters, Development, Production, Distribution, Grinding Center
- Lot size
- small series, predominantly rotationally symmetric parts
- Materials
- Steel, cast iron, aluminum, stainless steel, titanium, brass, copper
- Turn-mill centers and 5-axis machining centers up to Ø300/L1.400
- External cylindrical grinding machine up to Ø300/L1.000
- Internal grinding machine up to Ø200/L1.000
- Deep-hole drilling machine up to Ø100/L700
- Tool grinding machines (5-axis grinding)
- Wire EDM machine up to L200
- Induction brazing system (brazing, 10 kW)
- Blasting system (fine, wet, dry blasting, up to L500)
- Peel grinding machine Ø6-32/L<200
- Laser marking system
Tools & Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Reverse machining / reverse countersinkingMachining | – | – | – | – | Steel, Cast iron, Aluminum, Non-ferrous metals, Stainless steel, Special alloys and titanium |
| Solid drillingMachining | H11 (WSP drills); fine boring 2 µm adjustment steps | – | – | – | Steel, Cast iron, Aluminum, Non-ferrous metals, Stainless steel, Special alloys and titanium |
| Countersinking & reaming (taper countersinks)Machining | IT9-11 (AW/UNW) | – | – | – | Steel, Aluminum, Copper, Cast iron, Brass |
| Contract manufacturing: turning and milling on turn-mill centers and 5-axis machining centersMachining | – | L=1.400 × Ø=300 | – | small series | – |
| Contract manufacturing: external cylindrical grindingSurface | – | L=1.000 × Ø=300 | – | – | – |
| Contract manufacturing: internal cylindrical grindingSurface | – | L=1.000 × Ø=200 | – | – | – |
| Contract manufacturing: deep-hole drillingMachining | – | L=700 × Ø=100 | – | – | – |
| Contract manufacturing: 5-axis grinding on tool grinding machinesSurface | – | – | – | – | – |
| Contract manufacturing: wire EDMMachining | – | L=200 | – | – | – |
| Contract manufacturing: brazing using an induction brazing systemJoining | – | – | 10 kW system power | – | – |
| Contract manufacturing: fine, wet and dry blastingSurface | – | L=500 | – | – | – |
| Contract manufacturing: peel grinding of rotationally symmetric workpiecesSurface | – | L<200 × Ø=6-32 | – | – | – |
| Contract manufacturing: laser markingSurface | – | – | – | – | – |
| Regrinding / sharpening / recoating of machining tools (Grinding Center Esslingen)Surface | – | – | – | – | – |
| Chamfering and deburring (solid carbide chamfer milling cutters FUN / Unimill, EXcaliBURR)Machining | – | – | – | – | Steel, Cast iron, Aluminum, Non-ferrous metals, Stainless steel |
11 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Turn-mill center | – | – | up to Ø=300 and L=1.400 | – | Esslingen |
| 5-axis machining center | – | – | up to Ø=300 and L=1.400 | – | Esslingen |
| External cylindrical grinding machine | – | – | workpieces up to Ø=300 and L=1.000 | – | Esslingen |
| Internal cylindrical grinding machine | – | – | workpieces up to Ø=200 and L=1.000 | – | Esslingen |
| Deep-hole drilling machine | – | – | workpieces up to Ø=100 and L=700 | – | Esslingen |
| Tool grinding machine (5-axis grinding) | – | – | – | – | Esslingen |
| Wire EDM machine | – | – | workpieces up to L=200 | – | Esslingen |
| Induction brazing system (brazing) | – | – | power 10 kW | – | Esslingen |
| Blasting system (fine, wet and dry blasting) | – | – | workpieces up to L=500 | – | Esslingen |
| Peel grinding machine | – | – | rotationally symmetric workpieces Ø=6-32 and L<200 | – | Esslingen |
| Laser marking system | – | – | – | – | Esslingen |
Additional services
Quality
The precision tools are manufactured to micron accuracy; ground indexable inserts enable bores with fits up to IT8 without cutting edge adjustment. A quality management system according to ISO 9001:2015 is certified at the Esslingen location.
| Evidence | Esslingen |
|---|---|
| ISO 9001:2015 |
History
- 1935
Founding of the family company Hermann Bilz GmbH & Co KG at the Esslingen location
Over 30,000 successfully implemented special projects; website tribute "90 years of expertise in precision drilling"