现货供应力士乐REXROTH定量泵 REXROTH定量泵区分为开回路及闭回路两种类型，两者主要差别在于闭回路变量泵的机台稳定性较佳，然而成本却也高出一倍，早期中国台湾厂商所使用的变量泵多为闭回路类型。而目前部分大陆塑机厂家为了节省成本，采用开回路变量泵，其价格相差一倍，导致许多厂家以为物美价廉，捡到便宜，殊不知“一分钱，一分货”，变量泵仍是有等级优劣之分的，其节能效果及机台稳定性更是有很大差别。因此，在选用变量节能机时应特别注意所配置的变量泵类型究竟是开回路还是闭回路，因为其对于机台稳定性有性的影响。此外，对于一般普通产品而言，花同样的成本加装开回路变量泵来节能，还是加装半闭回路来提升机台的稳定性及重现性，是值得厂家仔细权衡的问题。 现货供应力士乐REXROTH定量泵 A10V0100DR/31R-PSC11N00
A10V028DR
A10V028DR/31R-PSC62K01-S1581
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A2FO32/61R-PAB05?
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A2FO45/61R-PZB05??
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A2FO90/61R-PAB05?
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A2VK.28.MA?OR1G00P.S03
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A4VS071DR/31R-PPB
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AE-A10VSO45DR/31R-PPA12N00
EA10VSO71DR/31R-PPA12N00
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E-A4VSO125DR/30R-PPB13N00
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E-A4VSO180DR/30R-PPB13NOO
pv7-1x/10-14re01mc0-16
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pv7-1x/10-20re01mco-10
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PVV21-1X/040-018RB15UDMB
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pvv5-1x/193ra15lmc
pvv52-1x/139-068ra15dlmc
PVV54-1X/139-069RA15UUMC
pvv54-1x/154-113rj15uumc 现货供应力士乐REXROTH定量泵 A10VSO10DR/52R-PPA14N00
A10VSO18DR/31R-PPA12K01
A10VSO18DFR1/31R-PPA12K01
A10VSO18DFLR/31R-PPA12N00
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A10VSO71DR/31R-PPA12K01
A10VSO71DFR1/31R-PPA12K02
A10VSO71DFR/31R-PPA12N00
A10VSO71DFR/31R-PPA12K27
A10VSO71DG/31R-PPA12N00
A10VSO71DRG/31R-PPA12N00
A10VSO71DFE1/31R-PPA12N00
A10VSO71FHD/31R-PPA12N00
A10VSO71ED/31R-PPA12N00
A10VSO100DR/31R-PPA12K01
A10VSO100DFR1/31R-PPA12K01
A10VSO100DG/31R-PPA12N00
A10VSO100DRG/31R-PPA12N00
A10VSO100DFE1/31R-PPA12N00 REXROTH定量泵与标准定量泵的主要区别是输出功率不同，变量泵的输出功率是随负载的变化而变化，而定量泵的输出功率相对恒定，在小流量动作情况下，变量泵的输出功率很低，而定量泵的输出功率基本恒定。 近年来，不少注塑机厂争相研发具有节能效果的注塑机新品，尤其在中国巿场许多厂家纷纷推出标榜配置变量泵以达到节能作用的注塑机。然而所谓“节能”的背后其实是有限制条件，而且必须付出其它代价的，必须谨慎选用。 REXROTH定量泵和定量泵组合的容积调速装置，包括定量柱塞泵，定量柱塞泵一端通过出油管道与双向比例变量柱塞泵一端连接，定量柱塞泵另一端通过吸油管道与双向比例变量柱塞泵另一端连接，定量柱塞泵和双向比例变量柱塞泵分别与电机连接，双向比例变量柱塞泵与变量油缸连接，变量油缸与位移传感器连接，位移传感器与控制器连接，控制器与比例伺服阀连接。本实用新型采用定量泵和比例变量泵组合，并采用伺服阀控制，能够替代进口的大排量比例变量泵，增加双倍排量，为液压控制系统中采用大排量比例变量泵提供了价格低廉、运行效果好的容积调速装置；本实用新型稳定性好、控制精确度高、有较强的抗干扰能力等。
REXROTH定量泵随机台动作需求，提供适当的流量，以达到节省能源的功效。然而，此一节能的效果在注塑一般产品以及薄壁产品，特别是高速生产时，却几乎无法显现效果，只有需要长时间高保压的产品，此一节能效果才会明显，这是一般塑机厂众所皆知的结论。但是其反应速度、稳定性均较差，而且会提高维修成本，降低机器寿命等负面效果，却是许多注塑厂家所不清楚的。由于认识不清，很容易便陷入“所有产品使用变量机一定可大幅节能”的误区中。因此，在考虑是否采用变量节能机时，必须先确认产品种类是否为高保压需求的产品，如果只是一般产品或薄壁产品却使用变量机来生产，其节能效果就显得微不足道了。此外，在选用变量节能机时必须仔细核算所花费的成本与所节省的费用是否真的有利，不应只是观察表面的节能现象，而忽略背后隐藏的许多成本，包括后续的维修、保养、机器寿命、产品稳定性等隐性成本，若选用错误，不但会造成节能效果不明显，还可能花冤枉钱。
REXROTH定量泵系统除具有常规比例控制系统的优点外，更具有如下优点： ①相同功率的机器，注射速度可提高25％以上，更适应薄壁精密注射要求。由于普通PQ系统功率计算以保压状态为标准，比例变量泵系统在这一动作时功率消耗很低，因而油泵排量可加大25％以上。 ②系统发热降低，液压元件使用寿命延长。比例变量系统几乎无节流、溢流损失，系统运行时发热大大减少。不仅可节省冷却水之消耗，低油温使密封元件寿命大大提高。 ③能量消耗减少，系统效率提高。比例变量泵系统具有良好的自适应性，其输出的压力和流量能够与负载需求相*，解决了节流调速系统的流量不适应和压力不适应问题，能量损耗大大减少，系统效率提高，节能效果十分明显，与普通定量泵+PQ比例阀系统相比较，可节电25～45％。 规格5至1000
斜轴式轴向注塞泵
开式回路
6系列
标准定量泵适用于任何应用
SAE法兰或者螺纹工作端口 A2FO型号
规格5至1000
斜轴式轴向注塞泵
开式回路
6系列
标准定量泵适用于任何应用
SAE法兰或者螺纹工作端口
轴承寿命长（规格250至1000） A4FO型号
规格16至500
轴向柱塞斜盘结构
开式回路
系列1（规格1）
系列3（规格16至40，规格125至500）
在驱动通轴上可另装泵
可用HF油液工作，但运行参数有所降低（规格71至500） |
