Drylin t linear guide systems are employed in this enveloping machine to guide a suction opener for envelopes, which is supported on one side. This enveloping machine includes a variable stroke of 4-1 omm and an output of 4 double strokes a second. The guide system of the enveloping machine needs to have low backlash, be maintenance- free and not require any lubricant. High speeds and short stroke are the main criteria for the operation of the enveloping machine . Technical data: permissible static surface pressure 4.0 kn. Operation temperature: -40°g / + 90°c.