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The K2 incorporates a patented in-line load transfer design which provides high load capability for rugged-duty use, efficient power use, compact package size, excellent corrosion and washdown protection, and high performance synthetic lubrication for life. This model has a gear ratio of 20:1, 12 DC motor voltage, and stroke length of 18 in. (450 mm). It is outfitted with a Bronze Nut and rolled Hybrid Acme screw, yielding high impact capability and long life.UPC883680382129Altra Master No.20043448Family NameB-Track K2Model No.K2Motor Voltage12Load Capacity1,200Load Capacity5,340Screw TypeHybrid AcmeStroke Length18.00Stroke Length450Operation Temperature Range-20°F to +150°F (-40°F to +176°F available)Operation Temperature Range-29°C to +65°C (-40°C to +80°C available)Static Load Capacity3,000Static Load Capacity13,345A Dimension(English)24.32A Dimension617.70Normal Operating Voltage10-16 VDC (Ratings are at 12 VDC Normal)Control ModelAdjustable Limit SwitchesGear Ratio20 / 1Motor TypeIgnition Protected MotorNut TypeBronze NutBase Fitting AlignmentStandardIP-RatingIP69K Static (IP65 capable)