Hofmann GEODYNA 8200 Wheel Balancer with Non-Contact Data Entry and Diagnostic Functions The word in this machine's name that earns its price is diagnostic. Almost every balancer in a tire shop answers one question — where is the heavy spot, and how much weight cancels it. The GEODYNA 8200 also measures radial run-out: using high-accuracy laser technology it records how far the assembly deviates from a true circle. That is a different fault with a different cure, and it is the reason a car can come back with a vibration complaint after a textbook balance job. This is a video wheel balancer for cars and light trucks in high-volume shops and dealerships, with fully automatic non-contact data entry, electromechanical power clamping and a touchscreen interface. Run-out is the vibration a balancer cannot fix — unless it can see it Balance and roundness are independent. A wheel can be perfectly balanced and still be out of round; spun at highway speed it produces a rhythmic vertical disturbance that no amount of adhesive weight will remove, because the problem is geometry, not mass distribution. Technicians without a run-out capability chase that fault by adding weight, then by swapping wheels around the car, then by replacing a tire that was never faulty. Measuring deviation from a perfect circle turns that guesswork into a procedure. Knowing the run-out of the rim and of the tire lets the technician match-mount — index the tire on the rim so that the high spot of one sits against the low spot of the other, cancelling much of the combined error before a single gram of weight is fitted. The result is a rounder assembly, a smaller correction weight, and a comeback that does not happen. On a dealership's new-vehicle prep or a shop that sells premium tires with a ride guarantee, that single capability is what the machine is bought for. Nothing is typed in Data entry is by scanner and Smart Sonar rather than by keypad. The scanner also detects the number and position of the rim's spokes automatically, which matters more than it sounds: on an open-spoke alloy the correction weight has to be hidden behind spokes, and the machine's split-weight mode divides one correction into two hidden placements. On the 8200 that mode is recalled by pressing an icon, with the spoke geometry already known, instead of being set up by hand for every wheel. The touchscreen offers three cycle modes — fully automatic with spoke detection, fast automatic without it, and manual — so a plain steel wheel does not pay the time cost of a diagnostic routine it does not need. A check spin on a reference 195/65R15 wheel takes 4.5 seconds start to stop, and the wheel then indexes itself: Stop In Position rotates the assembly to the correction point automatically, so the technician's hands go straight to where the weight belongs. Clamping, lighting and the guard The electromechanical Power Clamp holds the wheel with a constant, repeatable force. Hand-tightened cone clamping varies with whoever tightened it, and clamping force is part of the measurement — a wheel held slightly differently on the second spin reads slightly differently. Constant force removes that variable from the result. The shaft is 40 mm in diameter and 225 mm long, so full-depth accessories and awkward hub geometries fit on it. High-brightness LED rim lighting is fitted because the two tasks that decide the quality of the job — cleaning the rim where an adhesive weight will sit, and placing that weight accurately — both happen inside a dark rim well. The patented telescopic wheel guard collapses rather than swinging through a wide arc, which is how the machine keeps a small footprint in a bay that has other equipment in it. Will It Fit? Power. 230 VAC, 1ph, 50/60 Hz at 1.1A. Single phase, but not a general-purpose outlet — a correctly rated, properly grounded circuit at the machine's position is the customer's responsibility and should be in place before delivery. Footprint. The unit alone measures 54" x 40" x 62" (1,372 x 1,016 x 1,575 mm) and weighs 297 lbs (135 kg) net. Add working room in front for the technician and the wheel, and account for the guard's travel and the monitor's viewing angle when you site it. A level concrete floor is assumed. Wheels. Check your largest assembly against the capacity table below before ordering — particularly max wheel diameter and max wheel weight, which are the two limits customers most often discover after installation. Perfect For New-car dealerships doing pre-delivery inspection and ride-quality diagnosis under warranty. High-volume tire retailers selling premium tires with a ride guarantee, where a comeback costs more than the balance. Performance and wheel specialists handling large-diameter, low-profile alloys where hidden weights and match-mounting are routine. Multi-bay independent shops that want one machine to cover both quick balances and hard vibration diagnosis. What's in the Box The published feature set covers the scanner and Smart Sonar data entry, automatic spoke detection, Stop In Position, the easyWEIGHT pinpoint indicator light, the electromechanical Power Clamp, the geodata arm, rim lighting, the telescopic wheel guard and radial run-out measurement. The EZ-Collets tooling-selection app is a free download from the Apple and Google stores and needs an email activation; it is not equipment that ships in the crate. Cones, flanges and quick plates for specific vehicle applications are not itemised in the data we hold — tell us the wheels you service and we will confirm what comes with the machine before you order. Measurement Wheel clamping Power clamp Diameter of shaft 40 mm Length of shaft 225 mm Measuring speed < 200 rpm Angular resolution ±0.35° Check spin (wheel 195/65R15) 4.5 seconds Capacity and power Max. wheel diameter 42" (1,067mm) Max. wheel weight 154 lbs (70 kg) Manual rim diameter range 8-32" (203-813 mm) Manual rim width range 1-20" (25-508 mm) Semi-automatic rim diameter range 8-25" (203-635 mm) Semi-automatic rim width range 3-15" (76-381 mm) Power requirements 230 VAC 1ph 50/60 Hz Net weight 297 lbs (135 kg) Note that the automatic and manual entry ranges are not the same: manual entry reaches further than the semi-automatic scan on both diameter and width. If your work sits above the semi-automatic range, the machine still handles it — the dimensions are keyed rather than scanned. Certification and compliance, honestly The product data we hold for the GEODYNA 8200 records no independent third-party safety listing, and we are not going to imply one it does not claim. A manufacturer's own declaration of conformity is not the same instrument as a listing issued by an accredited third-party body, and where a rule calls for the latter the former does not satisfy it. If your insurer, a manufacturer's franchise standard or your local authority having jurisdiction requires a specific listing on shop equipment, establish which one and ask us to check this machine's documentation against it before you buy. Shipping and delivery Freight equipment, shipped within the lower 48 states. Delivery of Hofmann machines is governed by the Pick Up and Delivery section further down this page, which differs from our general freight terms — read it, and if anything there conflicts with what you see at checkout, settle it with us before you order. In every case, inspect the shipment before signing: look for punctures, crushed corners, a load that has shifted on the pallet or broken banding, and record what you find on the bill of lading at the point of delivery. A clean signature is a statement that the machine arrived undamaged, and reversing it afterwards is difficult. Warranty Claims are handled through our published warranty claims process. We have not printed a term because the product data we hold does not state one; a link to the real policy is worth more than a length we would be guessing at. And one standing rule: do not disassemble a suspect part before the claim is open. Photograph it in place, note the serial number and contact us first — a unit that has already been opened is frequently outside the terms of a claim that would otherwise have been honoured. Product Features Radial Run-Out User Interface Automatic Spoke Detection Stop In Position easyWEIGHT geodata Arm Rim Lighting Telescopic Wheel Guard Power Clamp EZ-Collets Product Specifications Wheel clamping Power clamp Diameter of shaft 40 mm Measuring speed < 200 rpm Balancing accuracy 0.035 (1 g) Angular resolution ±0.35° Length of shaft 225 mm Start/Stop balance time - Check spin (Wheel 195/65R15) 4.5 seconds Manual rim diameter range 8-32" (203-813 mm) Manual offset range 1-20" (25-508 mm) Manual rim width range 1-20" (25-508 mm) Semi-automatic rim diameter range 8-25" (203-635 mm) Semi-automatic rim width range 3-15" (76-381 mm) Max. wheel diameter 42" (1,067mm) Max. wheel weight 154 lbs (70 kg) Motorized Yes Power Requirements 230 VAC 1ph 50/60 Hz – 1.1A Dimensions LxWxH (Unit only) 54" x 40" x 62" (1,372 x 1,016 x 1,575 mm) Net Weight 297 lbs (135 kg) Pick Up and Delivery All Hofmann machines come with free delivery, setup, and instruction.Call, text, or chat with us if you have questions. - 866-774-7743 Downloads Brochure Manual Warranty
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