???The unique brass pump is more durable than plastic and aluminium one.
【Work Efficiently】 This Industrial glass suction cup for lifting large glass, fast adsorption, higher efficiency, suitable for a variety of smooth and non-porous surfaces. Adsorption is more stable, more efficient, stronger suction, efficient operation. It can be used with machinery, which solves the problems of installing and handling high-altitude and heavy objects.
【Widely Usage】 This glass suction cup is a great choice for lifting items. 8'' in diameter all metal hand-held vacuum cups, fast attachment on flat, smooth, nonporous surfaces. Excellent for lifting and moving materials like large glass, tile,aquarium, furniture,plastics, metal, stone slabs, and appliances.
【Load capacity】:140 lb-560 lb(maximum) Made of special rubber which could works in -20℃ to 60℃ temperatures, and keep the vaccum for 6 hours.
【Easy To Operate】 Pump the plunger just a few strokes, the cup will attache the surface completely and hold suction for more than 6 hours, release Valve Lever permits quick and complete release. The red-line indicator warns user of any vacuum loss. When it shows less than 100% vacuum left, simply pump the plunger until you reach the original vacuum pressure without removing the cup from the glass.
【Quality Guarantee】 Skywerc is a professional manufacturer of glass suction cups through the CE, SGS, RoHS, PAHS certification. If there is any quality problem with the suction cup, please contact Amazon for a free replacement. If you have any other questions about the product, please feel free to contact us, Lifetime 100% satisfied quality guarantee.