Development and manufacturing of couplings, clamping elements and measuring gearboxes at the Klingenberg am Main site.
KBK Antriebstechnik GmbH
Klingenberg am Main (Röllfeld) · Unterlandstraße 46New on Amplifa
About KBK Antriebstechnik
KBK Antriebstechnik GmbH, based in Klingenberg am Main (Röllfeld), has been developing and manufacturing couplings, clamping elements and attachable measuring gearboxes entirely in-house since 2003. The product range includes metal bellows couplings, slotted couplings, elastomer couplings, spacer couplings, universal joint couplings, cross-sliding couplings, shell couplings, safety couplings, magnetic couplings and torque-limiting couplings, as well as clamping sets, shrink discs, clamping rings and backlash-free attachable measuring gearboxes. Based on a modular system, standard components are realized with customer-specific bores (centring H7); express manufacturing with customer-specific bores is possible within two hours, and spacer couplings are manufactured to the millimetre in lengths up to 3000 mm. Materials processed include steel, free-cutting and heat-treatable steels, stainless steel (1.4301/1.4401), aluminium (AW 2011, AW 7075), cast iron grades (GJL, GJS) and elastomers for gear rims; optionally electroless nickel-plated or entirely in stainless steel. Typical industries include mechanical engineering, servo drives and automation, packaging and filling technology, food and pharmaceutical industries, linear technology, machine tools and explosion-protected ATEX applications. More than 65 employees produce and distribute worldwide via sales partners.
- Site
- Klingenberg am Main
- Processes
- Manufacturing of couplings and drive elements (modular system, customer-specific bores), Customer-specific bores in standard components (manufacturing within 2 hours), Quality control / permanent testing (100 % inspection of all products), Setting and testing of overload couplings to the customer's disengagement torque at the factory, Laser marking (laser-engraved scale on magnetic couplings), Electroless nickel plating (optional for all products), New development and design of drive elements incl. calculation (e.g. replication, Special versions and individual bores
- Materials
- Stainless steel, Aluminium, Structural steel, Free-cutting steel, Heat-treatable steel, Case-hardening steel, Grey cast iron, Spheroidal cast iron
- Certificates
- ISO 9001:2015, ATEX (product certification), RoHS/REACH compliance
- Founded
- 2003
- Employees
- more than 65
- Industries
- Mechanical engineering, Servo drives/Automation technology, Packaging technology, Bottle filling systems, Food industry, Pharmaceutical technology
- 01
Engineering and design incl. calculation
- 02
CNC manufacturing and machining
- 03
Setting and testing (e.g. disengagement torque of safety couplings)
- 04
100 % quality control
- 05
Warehouse and shipping incl. direct courier
Materials and Processes
Stainless steel AISI 304
Stainless steel versions of couplings and clamping elements, among others for food and pharmaceutical applications.
Stainless steel AISI 316
For particularly corrosion-stressed applications, on request processed as special stainless steel.
Aluminium
Hub material for clamping sets and lightweight precision tubing for spacer couplings.
Aluminium
High-strength hub material for clamping elements.
Heat-treatable steel
Hub material for higher-stressed shaft-hub connections.
Case-hardening steel
Hub material with higher yield strength for clamping set applications.
Free-cutting steel
Easily machinable steel for coupling components.
Cast iron (GJL-200 to GJS-800)
Cast materials as hub material for clamping set use, depending on surface pressure.
Gear rims (64 ShD to 98 ShA)
Elastomer gear rims in four hardness grades for vibration-damping to torsionally stiff elastomer couplings.
Electroless nickel plating
Optional surface variant for all products.
Laser marking
Laser-engraved scales on magnetic couplings for stepless torque adjustment.
Sites
Klingenberg am Main (Röllfeld)
DEHeadquarters: development, manufacturing, administration, warehouse
- Lot size
- Standard programme ex stock; express manufacturing with customer-specific bores
- Materials
- Steel, stainless steel (1.4301/1.4401), aluminium (AW 2011, AW 7075), cast iron, elastomer
Components and Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacturing of couplings and drive elements (modular system, customer-specific bores)Engineering | – | Spacer couplings lengths up to 3000 mm | – | – | Steel, Stainless steel, Aluminium |
| Customer-specific bores in standard components (manufacturing within 2 hours)Machining | Centring H7 | – | – | – | Stainless steel |
| Quality control / permanent testing (100 % inspection of all products)Testing | – | – | – | – | – |
| Setting and testing of overload couplings to the customer's disengagement torque at the factoryTesting | – | – | – | – | – |
| Laser marking (laser-engraved scale on magnetic couplings)Surface treatment | – | – | – | – | Stainless steel |
| Electroless nickel plating (optional for all products)Surface treatment | – | – | – | – | Steel, Stainless steel |
| New development and design of drive elements incl. calculation (e.g. replicationEngineering | – | – | – | – | – |
Additional services
Quality and Certification
All products undergo strict 100 % quality control with permanent in-house testing; safety couplings are set and tested at the factory to the customer-specific disengagement torque. The quality management system is certified according to DIN EN ISO 9001:2015 and is evidenced by annual audits.
| Evidence | Klingenberg am Main |
|---|---|
| ISO 9001:2015 | |
| ATEX (product certification) | |
| RoHS/REACH compliance |
Company History
- 2003
New foundation by Robert Karpstein and Bernd Brenner in rented premises at Furtwänglerweg 30, Trennfurt
- 2011
Relocation and expansion at the new site Unterlandstraße 46 in Röllfeld; expansion of the machine park
- 2013
Generational change: Sven Karpstein takes over the management from Robert Karpstein
- 2017
Construction of an attached warehouse; Sven Karpstein acquires 50 % of the company shares
- 2019
Integration of the new magnetic coupling product series
- 2020
Expansion of the site with a modern office loft; takeover of the business operations of Merz Antriebstechnik GmbH (measuring gearboxes)
- 2021
Introduction of the slotted coupling product line
- 2023
Rental of additional storage space for capacity expansion
- 2024
Market launch of the cross-sliding coupling product division
- 2025
Sven Karpstein acquires the remaining shares and is sole owner; company founder Robert Karpstein passed away in April 2025