CONTACT CUSTOMER SERVICE General Kinematics prides itself on its customer support. Whether you have GK vibratory equipment or someone elses, we are here to help you keep your process running. GK is available 24 hours a day online and in-person to help you troubleshoot your equipment or process issues. GK Customer Service representatives are available 24 hours a day, 7 days a week. You can contact our service professionals Monday through Friday during our normal business hours of 7 AM – 5 PM CST, or use the contact form found below.