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High compaction screed
| 题名： | High compaction screed |
| 正文语种： | eng |
| 摘要： | The new system operates the firm's proven four- tube design and allows the delivery of material for very thin layers, while ensuring quality. To achieve this, the firm has replaced the standard vibration unit with redesigned high compaction units, one for each screed section Operated through the screed mounted control panel, team members have direct access to compaction controls, which include tamper, vibration and the setting of the additional available compaction pressures. All functions are displayed on the control panel. The new high compaction unit is capable of delivering 3000rpm with a maximum high compaction pressure of 70bar across all four sections simultaneously. This is due to an integrated lift system that allows for adjustment of the forces coming from the high compaction unit (HCU), with the hydraulic pressure fully independent from the vibration speed. In practical terms, this means the screed operator can control and adjust pressure and vibration from the two screed remote control panels, positioned either side of the screed, or the main operator panel. These controls come with common pre-settings for the different course types and adapt to the individual needs of the jobsite, using the expertise of the operator. |
| 出版年： | 2021 |
| 期刊名称： | World highways |
| 卷： | 30 |
| 期： | 3 |
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