Our explosion-proof helical gear units have equipment group II approval for categorie 2. They drive systems and machines in potentially explosive atmospheres.

A total of six single-stage and 15 two and three-stage sizes cover a performance range of 50 Nm to 18,000 Nm. This gear unit series is also far ahead in terms of gear unit ratios: from i = 1.30 to i = 289.74, in double gear units even i = 27,001. Torque ratings and gear unit ratios this finely stepped are hard to find on the market.

The R gear units also meet demands for high output speeds and light weight, of course. With a consistently high level of efficiency, our explosion-proof helical gear units offer an optimum ratio between torque output and installation space.

Only half the solution without a motor? Then use our sophisticated modular concept and combine the explosion-proof gear units of the R series with the explosion-proof motor of your choice.

• Gear units comply with directive 94/9/EC (ATEX), or as of April 20, 2016 of the EU Directive 2014/34/EU (ATEX), equipment group II, categorie 2, variant II2GD
  • For use on the European market
  • Accepted in China
  • Accepted in Russia in combination with EAC certificates (formerly GOST-R)

• Certified protection types:
  • Protection type “c”: Protected by safe construction (design safety), EN13463-1 and -5
  • Protection type “k”: Protected by liquid immersion, EN13463-1 and -8
• All screws are secured against automatic loosening
• Gear unit has a separate nameplate
• High-quality oil seals
• Lubricant can withstand high temperatures
• Single or multi-stage
• Foot- or flange-mounted
• Foot- and flange-mounted
• Flange-mounted with extended bearing hub