Competence & Quality

As a team of experienced torque specialists, in “b2b” we are concentrated on efficient assembly processes with controlled fastener tightening quality. Our high-class product line for industrial assembly is supplemented by dependable pneumatic tools for maintenance and repair work (automotive segment). Beyond that we supply also individual special tools according to drawing for special assembly situations.


Basis for an enduring and in partnership co-operation with our customers is the founded and expert consultation combined with a reliable and individual service portfolio. A fast and effective logistics is ensured by close co-operation with the Zell & Mohr International Spedition GmbH near port and with the Zell & Mohr air freight GmbH directly to Hamburg airport.


In our assembly tools assortment we represent reputable trade marks. To each product segment you can download a catalog and/or detailed product information and data sheets. With all German car manufacturers, in mechanical engineering, in addition, in air and space industry as well as numerous further industries our assembly tools are successfully used domestic and abroad for decades.



Company's history

1975: The merchants Wolfgang Zell and Wolfgang Mohr found ZEMO Im- und Export GmbH. Company headquarters is initially in the Chilehaus, located in Hamburg's Kontorhausviertel.

1987: Staff members of the European headquarter of Dresser company in Hamburg („Dresser Europe“) change to ZEMO energizing the rising enterprise to take a new direction on distributing industrial tools and torque systems. ZEMO becomes authorized sole distributor in German-speaking countries for torque tools and analyzers of the US market leader Sturtevant Richmont. In addition, the pneumatic pliers previously offered by Dresser Europe from the renowned Hamburg manufacturer Schwab (later KEL) will now be supplied by ZEMO in full distribution with the desired pliers inserts. Change of name into ZEMO Vertriebs GmbH as well as relocation to the Peutestrasse directly on the river Norderelbe.

1988: Enlargement of the tool assortment by impulse tool technology of the Japanese specialist Yokota as well as further automotive pneumatic tools from the Yokota assortment. Sturtevant Richmont patents the first fully automated digital torque tester.

1989: Presentation of the first electronically controlled system impulse wrenches and controllers from Yokota with complete documentation of the tightenings.

1991: Launch of the PTM-1000 Programmable Torque Measurement System from Sturtevant Richmont, equipped with a microprocessor-controlled electro-hydraulic servo drive for fully automatic torque wrench testing.

1995: Starting the distribution partnership for torque measuring equipment from Crane Electronics Ltd. The core capabilities of Crane lie in the patented technology of the rotary torque sensors (transducers) for impulse wrenches as well as in high-quality torque testers and readouts, digital torque wrenches and joint simulator kits.

1998: Presentation of Crane Electronics' first joint simulators for use with impulse wrenches. Expansion of the automotive segment with workshop equipment from BETA, a well-known supplier and sponsor in motorsport.

1999: Launch of the first generation of wireless torque wrenches from Sturtevant Richmont for process monitoring.

2000: Again with Sturtevant Richmont as co-exhibitor at the Cologne Hardware Fair.

2002: Publishing a comprehensive website. Joint booth with Yokota and Crane at the MOTEK trade fair in Sinsheim.

2003: Launch of the modular torque data collector TorqueStar Opta from Crane Electronics and the Opta Comms PC software for bundling torque data from Opta measuring devices.

2004: Reinforced specialization in the field of torque-controlled bolting with representation and networking of bolting data. Trade fair appearance at the MTQ Techmo in Dortmund. Market launch of the data collector ReadStar II, the digital torque wrench ProWrench Opta, and the measuring brake JRS Opta.

2005: In April booth at the Aerospace Testing in Hamburg. In September exhibiting at the MOTEK fair in Sinsheim, now under ZEMO's own name.

2007: Modernization of the corporate identity with re-launch of the website. Extension of the product range with high-quality hand-held torque and angle nutrunners. Market launch of the digital torque wrench IQWrench.

2008: Market launch of the Opta Management Software (OMS) for torque measurement data management.

2010:   From Yokota's proven TKA series adopted System Impulse Wrench series AT with angle control is first-ever introduced to the professional world on MOTEK fair.

2012:   Presentation of a further developed electronically controlled (EC) test bench Z-Pro for torque wrenches during the fair presentation at CONTROL in Stuttgart. Replacement of the digital torque wrench IQWrench by the further developed successor IQWrench2 Opta.

2013: Market introduction of the Torq-Tronics2 from Sturtevant Richmont, so far the only torque tester with fail-safe engineering.

2014: Presentation of the revolutionary torque data collector IQVu and the rotating torque sensors CheckStar Multi from Crane Electronics.

2015: Market launch of the RFm radio module for rotating torque sensors and the WrenchStar Multi torque wrench..

2016: Market launch of the Global 400 torque Process Monitoring System and 1250 Exacta 2 wireless torque and angle wrench from Sturtevant Richmont.

2017: Model change for IQVu – now available with additional battery pack as IQVu Plus.

2018: Market launch of the super slim torque wrench DTC from Sturtevant Richmont.

2019: Launch of Crane Electronics' newly-developed TorqueStar data collector series, available in Lite, Plus and Pro version.