Glass suction lifters are handling tools, not a universal capacity promise. Choose and use one only for the workpiece, surface, orientation, and handling method stated in that model’s current instructions. Cup count alone does not show whether a lifter can safely control a particular glass panel.
Start with the lifter’s intended application
Separate a hand-operated cup used for a short manual move from a vacuum lifting device or trolley used to raise or transport larger panels. These devices have different instructions, indicators, ratings, inspection requirements, and work plans. The selection must come from the exact product label and manual, not from a general single-, double-, or triple-cup rule.
For example, Zimmor’s catalogue lists a two-cup lifter and a three-cup lifter. Treat those pages as product references only. Check the current instructions and the stated application, capacity, direction, and limitations for the selected model before use.
Inspect the surface and lifter before each task
Follow the model’s instructions for the work surface, seal, vacuum indicator, inspection, and testing. Bohle’s Veribor transport trolley instructions warn that the suction surface and pad must be clean and dry, that wet, uneven, rough, or porous surfaces can reduce holding capacity, and that damaged or worn pads must be replaced. The instructions for a different model may set different conditions; read the manual for the device in use.
Check the suction pads, seals, pump or lever mechanism, vacuum indicator, and other safety devices as directed. Do not use a lifter with damaged parts, a failed or unstable vacuum, or a surface the product instructions do not cover. Follow the inspection and maintenance intervals specified by the manufacturer.
Plan the move and keep people clear
Assess the panel, route, turns, doorways, landing area, and potential movement before lifting. Use enough trained people and the specified handling equipment for the complete panel and route. Keep people out from beneath suspended loads and away from the fall zone. Never use a hand suction lifter as a substitute for a rated mechanical lifting device or as fall protection.
For mechanized vacuum lifters, follow the equipment’s operating manual, safety devices, staffing, and workplace rules. Bohle’s vacuum lifting-equipment manual calls for trained, authorized operators, pre-use checks, protective equipment, and keeping people clear of suspended material. This manual applies to the specified equipment; use the manual for your own machine.
Record the selection and inspection
For a repeatable job, record the lifter model, intended application, workpiece and surface conditions, inspection result, vacuum indication, handling team, and any defects or maintenance. If the panel or task falls outside the product instructions, stop and obtain the correct equipment and handling plan from the tool manufacturer or a qualified glass-handling professional.
Common questions
Does a lifter with more suction cups always carry more glass?
No. Cup count alone does not establish safe capacity. Use the rated capacity and conditions in the exact model’s current manual, including the permitted direction, workpiece, and surface.
Can a suction lifter be used on wet or textured glass?
Only if the specific product instructions allow that surface and condition. Some manufacturer instructions warn that wet, uneven, rough, or porous surfaces can reduce or eliminate holding capacity.
What should I check before using a suction lifter?
Follow the manual’s checks for the suction pads, pump or lever, vacuum indicator, safety devices, work surface, and vacuum stability. Do not use damaged equipment or proceed if the required vacuum is not maintained.
Can a hand suction lifter replace a mechanical glass lifter?
No. Use the equipment specified for the panel and task. A hand cup is not a substitute for a rated mechanical lifting device when the product, load, route, or work plan requires one.