Manufactures tape measures, spirit levels, rulers, laser and levelling technology as well as workshop measuring tools in Hersbruck.
Bayerische Maßindustrie A. Keller GmbH
91217 Hersbruck (main plant: manufacturing and administration)New on Amplifa
About BMI Messzeuge
Bayerische Maßindustrie A. Keller GmbH (BMI) is a medium-sized, family-owned company with more than 60 years of history, headquartered in Hersbruck (Middle Franconia). There it manufactures measuring tools for trades, construction and industry: frame and housing tape measures, pocket tape measures, spirit levels made of aluminium, die-cast aluminium and hardwood, rulers made of beech wood, plastic, aluminium and stainless steel, workshop measuring instruments, try squares, measuring wheels as well as laser and levelling technology. The manufacturing process includes, among other things, ultrasonic welding of spirit level vials, laser-marked vials and profiles as well as CNC-machined aluminium housings. Tape measures are manufactured according to EC accuracy classes (e.g. class II: ±2.3 mm over 10 m) and can be calibrated for an additional charge; the calibration is valid in all EC member states. The product range is complemented by custom tape measures, promotional printing from 300 units and certificates of conformity. Distribution is through specialised retail, including catalogues and video product information.
- Site
- Hersbruck
- Processes
- Manufacture of measuring tools (tape measures, spirit levels, rulers, laser levelling technology,, Ultrasonic welding of spirit level vials (vials welded using ultrasonic welding, Laser marking/scaling of vials and profiles (high-tech manufacturing of EUROSTAR spirit levels with, Production of custom tape measures and individual product design (promotional items,, Custom manufacturing / custom tape measures, Promotional printing on measuring tools (promotional items), Calibration of tape measures for an additional charge, Certificates of conformity
- Materials
- Beech wood, Hardwood, Stainless steel, Steel (stainless, for calipers/rulers), Special aluminium, Aluminium (profiles, cast, frames), Brass, Glass-fibre reinforced polyamide
- Certificates
- EC accuracy classes for tape measures (type approval, EC-wide calibration), DIN 862 / DIN 863-1 / DIN 878 (workshop measuring instruments), EN 60900:2004 (fully insulated tools, Polywood), ISO 9001
- Industries
- Trades, Construction industry, Construction / Surveying, Industry, Promotional products sector
- 01
Product development
- 02
Material and component manufacturing (aluminium, cast, wood, plastic, stainless
- 03
Ultrasonic welding and laser marking of vials
- 04
Assembly of measuring tools
- 05
Promotional printing / custom manufacturing
- 06
Calibration and certificate of conformity
- 07
Distribution via specialised retail
Locations
Hersbruck
DEMain plant: manufacturing and administration
- Lot size
- Catalogue items from 1 piece; promotional items from 300 pieces
- Materials
- Aluminium, stainless steel, steel, brass, zinc die-casting, wood, plastic
- Ultrasonic welding system for vials
- Laser marking of vials and profiles
- CNC machining of aluminium housings (Torpedo 3)
Components and Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of measuring tools (tape measures, spirit levels, rulers, laser levelling technology,Testing | Tape measures EC class II: ±2.3 mm over 10 m; class I: ±1.1 | – | – | from 1 piece (catalogue items); | Beech wood, Hardwood, Steel, Stainless steel, Aluminium, Brass, Plastic (polyamide, ABS), Zinc die-casting |
| Ultrasonic welding of spirit level vials (vials welded using ultrasonic weldingJoining | – | – | – | – | – |
| Laser marking/scaling of vials and profiles (high-tech manufacturing of EUROSTAR spirit levels withSurface | – | – | – | – | Aluminium |
| Production of custom tape measures and individual product design (promotional items,Engineering | – | – | – | – | – |
Additional services
Quality and Testing
Tape measures are manufactured according to EC accuracy classes (class I: ±1.1 mm over 10 m, class II: ±2.3 mm over 10 m) and hold EC type approval; calibration is available for an additional charge and is valid in all EC member states, complemented by certificates of conformity. Spirit levels achieve measuring accuracies of up to 0.3 mm/m; various models are manufactured according to DIN 862, DIN 863-1 or DIN 878.
| Evidence | Hersbruck |
|---|---|
| EC accuracy classes for tape measures (type approval, EC-wide calibration) | |
| DIN 862 / DIN 863-1 / DIN 878 (workshop measuring instruments) | |
| EN 60900:2004 (fully insulated tools, Polywood) | |
| ISO 9001 |
Company History
- ~1960
Family-owned for more than 60 years; founding year not specified.
- 1993
Entry into laser levelling technology; BMI as a pioneer in this field.
- 1999
Market launch of the topoMAT construction laser; more than 10,000 units sold since 1999.
- 2013
iF product design award 2013 gold for the BMI Quicky-Pro.
- ~2015
Further development of the Quicky into the BMImeter (previous version sold hundreds of thousands of times) with blade stopper and belt clip.