現貨供應力士樂REXROTH定量泵

REXROTH定量泵區分為開回路及閉回路兩種類型，兩者主要差別在于閉回路變量泵的機臺穩定性較佳，然而成本卻也高出一倍，早期中國臺灣廠商所使用的變量泵多為閉回路類型。而目前部分大陸塑機廠家為了節省成本，采用開回路變量泵，其價格相差一倍，導致許多廠家以為物美價廉，撿到便宜，殊不知“一分錢，一分貨”，變量泵仍是有等級優劣之分的，其節能效果及機臺穩定性更是有很大差別。因此，在選用變量節能機時應特別注意所配置的變量泵類型究竟是開回路還是閉回路，因為其對于機臺穩定性有性的影響。此外，對于一般普通產品而言，花同樣的成本加裝開回路變量泵來節能，還是加裝半閉回路來提升機臺的穩定性及重現性，是值得廠家仔細權衡的問題。

現貨供應力士樂REXROTH定量泵

A10V0100DR/31R-PSC11N00
A10V028DR
A10V028DR/31R-PSC62K01-S1581
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A11V 0130
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A4VS0500HSK/30L-PPH13N0010SET
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A4VS071DR/22R-PPB13NOO,
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A4VSO180DR/-30R-PPB13N00
A4VSO180LR2 30R
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A4VSO40DR10RPPB13100N
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pv7-1x/10-14re01mc0-16
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PVV21-1X/040-018RB15UDMB
PVV21-1X/045-027RJ15UUMB
PVV21-1X/055-018RA15UUVB
PVV2-1X/068RJ15UMB
pvv4-1x/098ra15umc
PVV4-1X/113RJ15UMC
PVV4-1X/122RA15RMC
PVV5-1X/154RJ15DVC
pvv5-1x/193ra15lmc
pvv52-1x/139-068ra15dlmc
PVV54-1X/139-069RA15UUMC
pvv54-1x/154-113rj15uumc

現貨供應力士樂REXROTH定量泵

A10VSO10DR/52R-PPA14N00
A10VSO18DR/31R-PPA12K01
A10VSO18DFR1/31R-PPA12K01
A10VSO18DFLR/31R-PPA12N00
A10VSO18DG/31R-PPA12N00
A10VSO18DFE1/31R-PPA12N00
A10VSO18FHD/31R-PPA12N00
A10VSO18ED/31R-PPA12N00
A10VSO28DR/31R-PPA12K01
A10VSO28DFR1/31R-PPA12K01
A10VSO28DG/31R-PPA12N00
A10VSO28DRG/31R-PPA12N00
A10VSO28DFE1/31R-PPA12N00
A10VSO28FHD/31R-PPA12N00
A10VSO28ED/31R-PPA12N00
A10VSO45DR/31R-PPA12K01
A10VSO45DFR1/31R-PPA12K02
A10VSO45DFR/31R-PPA12K01
A10VSO45DFR/31R-PPA12K26
A10VSO45DFLR/31R-PPA12N00
A10VSO45DG/31R-PPA12N00
A10VSO45DRG/31R-PPA12N00
A10VSO45DFE1/31R-PPA12N00
A10VSO45FHD/31R-PPA12N00
A10VSO45ED/31R-PPA12N00
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定量泵與標準定量泵的主要區別是輸出功率不同，變量泵的輸出功率是隨負載的變化而變化，而定量泵的輸出功率相對恒定，在小流量動作情況下，變量泵的輸出功率很低，而定量泵的輸出功率基本恒定?！〗陙恚簧僮⑺軝C廠爭相研發具有節能效果的注塑機新品，尤其在中國巿場許多廠家紛紛推出標榜配置變量泵以達到節能作用的注塑機。然而所謂“節能”的背后其實是有限制條件，而且必須付出其它代價的，必須謹慎選用。

 REXROTH定量泵和定量泵組合的容積調速裝置，包括定量柱塞泵，定量柱塞泵一端通過出油管道與雙向比例變量柱塞泵一端連接，定量柱塞泵另一端通過吸油管道與雙向比例變量柱塞泵另一端連接，定量柱塞泵和雙向比例變量柱塞泵分別與電機連接，雙向比例變量柱塞泵與變量油缸連接，變量油缸與位移傳感器連接，位移傳感器與控制器連接，控制器與比例伺服閥連接。本實用新型采用定量泵和比例變量泵組合，并采用伺服閥控制，能夠替代進口的大排量比例變量泵，增加雙倍排量，為液壓控制系統中采用大排量比例變量泵提供了價格低廉、運行效果好的容積調速裝置；本實用新型穩定性好、控制精確度高、有較強的抗干擾能力等。
 
REXROTH定量泵隨機臺動作需求，提供適當的流量，以達到節省能源的功效。然而，此一節能的效果在注塑一般產品以及薄壁產品，特別是高速生產時，卻幾乎無法顯現效果，只有需要長時間高保壓的產品，此一節能效果才會明顯，這是一般塑機廠眾所皆知的結論。但是其反應速度、穩定性均較差，而且會提高維修成本，降低機器壽命等負面效果，卻是許多注塑廠家所不清楚的。由于認識不清，很容易便陷入“所有產品使用變量機一定可大幅節能”的誤區中。因此，在考慮是否采用變量節能機時，必須先確認產品種類是否為高保壓需求的產品，如果只是一般產品或薄壁產品卻使用變量機來生產，其節能效果就顯得微不足道了。此外，在選用變量節能機時必須仔細核算所花費的成本與所節省的費用是否真的有利，不應只是觀察表面的節能現象，而忽略背后隱藏的許多成本，包括后續的維修、保養、機器壽命、產品穩定性等隱性成本，若選用錯誤，不但會造成節能效果不明顯，還可能花冤枉錢。
 REXROTH定量泵系統除具有常規比例控制系統的優點外，更具有如下優點：

①相同功率的機器，注射速度可提高25％以上，更適應薄壁精密注射要求。由于普通PQ系統功率計算以保壓狀態為標準，比例變量泵系統在這一動作時功率消耗很低，因而油泵排量可加大25％以上。

②系統發熱降低，液壓元件使用壽命延長。比例變量系統幾乎無節流、溢流損失，系統運行時發熱大大減少。不僅可節省冷卻水之消耗，低油溫使密封元件壽命大大提高。

③能量消耗減少，系統效率提高。比例變量泵系統具有良好的自適應性，其輸出的壓力和流量能夠與負載需求相*，解決了節流調速系統的流量不適應和壓力不適應問題，能量損耗大大減少，系統效率提高，節能效果十分明顯，與普通定量泵+PQ比例閥系統相比較，可節電25～45％。

規格5至1000
斜軸式軸向注塞泵
開式回路
6系列
標準定量泵適用于任何應用
SAE法蘭或者螺紋工作端口

A2FO型號
規格5至1000
斜軸式軸向注塞泵
開式回路
6系列
標準定量泵適用于任何應用
SAE法蘭或者螺紋工作端口
軸承壽命長（規格250至1000）

A4FO型號
規格16至500
軸向柱塞斜盤結構
開式回路
系列1（規格1）
系列3（規格16至40，規格125至500）
在驅動通軸上可另裝泵
可用HF油液工作，但運行參數有所降低（規格71至500）