33-99No. Mufu E Rd. Gulou District, Nanjing, China [email protected] | [email protected]
33-99No. Mufu E Rd. Gulou District, Nanjing, China [email protected] | [email protected]
A rotation motor shaft seal spends its entire service life in one continuous state: a flexible lip pressed against a shaft that never stops turning while the drill is running. That constant sliding contact, combined with exposure to the motor's case...
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The hydraulic motor that rotates a rock drill's shank adapter has an output shaft spinning continuously inside a case full of lubricating oil, and a small rubber seal is all that keeps that oil from working its way out along the shaft. This seal see...
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A rock drill dust seal has a narrower job than most other seals on the machine — it excludes contamination rather than holding back pressurized fluid — but that narrower job still comes with its own material demands. This article looks a...
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A hydraulic rock drill's front head has to keep two very different things in the right place at the same time: flushing water and lubricating oil have to stay in, and drilling dust and debris have to stay out. The cup seal handles the first job. The...
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A Glyd Ring or Step Seal is really two materials working together: a rigid PTFE wear ring and a rubber O-ring energizer underneath it. Most of the conversation around these seals focuses on their shape, but the specific PTFE compound and O-ring mater...
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Behind every rock drill rig's feed system, boom, and other hydraulic actuators sits a pair of seal designs that look almost identical at first glance but do their jobs in different places for different reasons: the Glyd Ring and the Step Seal. Both c...
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A rock drill's cup seal has an unusual job for an elastomer part: it has to hold back flushing water while riding against a shank adapter that is rotating and hammering at the same time, often for thousands of hours before replacement. The material i...
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Every hydraulic rock drill that flushes its hole with water depends on a small ring of elastomer to keep that water where it belongs. The cup seal sits at the point where a rotating, hammering shank adapter passes through the drill's front head, and ...
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Every hydraulic rock drill accumulator relies on a diaphragm to separate its nitrogen gas charge from the hydraulic oil circuit, and that diaphragm is molded from a specific elastomer or thermoplastic compound. The material choice is not incidental...
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A hydraulic rock drill relies on a small, easily overlooked component to keep its percussion system smooth and efficient: the accumulator diaphragm. When it is working correctly, most operators never think about it. When it fails, impact energy dr...
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Designed for adaptive variable-pressure surface drilling, the Everdigm DRILL-HIGH and DRILL-LOW rock drills are intelligent dual-mode drilling units tailored for modern quarrying and civil construction projects. This dual-setup drilling system allows...
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Engineered for adaptive surface drilling and open-pit quarry operations, ETC DNCD300EX-HIGH, DNCD300EX-LOW and TR210 rock drills are versatile industrial drilling equipment built for variable pressure working environments. The DNCD300EX dual-version ...
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Welcome to HOVOO, a Chinese seal factory. Production of PU, Rubber and PTFE seals. The seals include O-ring, piston seal, rod seal, Gray ring and gas seal.
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